Worked very well for me. Thank you. After nobbling the chip leg, my power LED didn't come back on, but with an 820 ohm resistor and a trim of the pot, I now have a power supply outputting 13.84 volts. Magic. I can't believe how small the chip legs are. Now to solder some big binding posts to + and -, to get as much of that 1000 watts available as possible. 73, M7KPS
Really helpful video! Perfect explanation! Have build a Truck battery charger with two HP DPS800GB PSUs ... runs great! Pushes 80 ampere in my lead acid battery!
Freakin' awesome! Just built same power supply for my CB Amp. Cost $35 total including a refurbished power supply and potentiometer. Putting out a regulated 13.76 volts DC at 58 amps!
Hi, nice video and nice work. Just a note. U can use the pot to raise the voltage until 15.5V for example, then measure the resistence of the pot. Pick a resistor with the closest value (allways higher) and put that resistor in series with a pot. That way u are safe from blown the out caps. Even if u turn the pot to zero.
Thanks a lot , I'm using one of these to charge a 4S Lifepo4 battery in my camper. Solar through a charge controller and this PSU through a dc-dc charge controller but it needs 14.2 volts. You Sir are a gentleman and a scholar.
Thanks, the video is helpful. I made a car generator tester for your video. You clearly explain everything, it is very accessible to the average layman.
great job on that supply ! when running radios or amps around 14 V or so is fine. most have a 15V max . I have IC 7300 and amp . what I found is using a 1FD or so cap close to radio or amp to smooth out SSB current. I used the walmart cap sold for sub amp. it has volt meter also . works great ! when parralo switching supplies set each to same volts using same meter. then use equal length of wire to connect together. rember wire AWG for amps ! you can add external crobar over volt protection if you want. need big SCR zener few outher parts.I have seen people use LED 12V 30 amp switchers for amps . they are cheap and made in china and don't last after running 15V or so . 73s
Cheers for this it worked great. I did the 820ohm resistor but could only adjust to around 14.4v and then it dropped back to 13.3v if I went any higher with the pot. Left it at 14.33v as that is fine for my charger.
Hi there!! Thank you for such a great video!! I just subscribed to your channel and I'm really enjoying your content. Keep up the great work!! Take care! Aaron
Just came across this video, I’ve been looking for information like this. I’m looking for a battery stabiliser for a car battery 14v 60A. Thanks you very much I appreciate it
@@thomasmize8842 He is lying about the price but keeps posting it because in his mind it gives the lie legitimacy. It's common for people who are insane.
Thank you very much! I have a couple of questions. About 4:15 time in the video I clearly see on the left what looks like a plug with 8 different color wires (8 if them) that are usually used in the ATX 24-pin connector. The colors also fit :) And the sticker on the PSU mentions amperage values for 3.3V and 5V, too. Does that all mean that this particular PSU outputs not only 12V (as this type of PSUs usually do) but also 3.3V and 5V on some of its pins? I'm asking because that would make it a cheap alternative for a reliable ATX PSU in case the machine must run 24/7 as a server application. Because these PSUs are much more reliable than those built specifically for home PCs.
Nicely explained, not a lot of excess verbiage, good visuals and good info. Thanks for posting! I'm planning on converting my emergency battery backup setup into an on-line UPS, using one (or two) of these PSUs. Float at 13.8 or so, even with refer, computers and all house lighting, under 600W steady-state max, 400W with computer and normal lights and about 80-150W at night, comms and refer. 6 golf cart batts to carry the load during outages. My current charge setup can't hack more than 30A or so. were these things can loaf along all day at 40-50 amps. Tired of outages. (yeah, I've been screwing around with this stuff since the tube days, lots of experience with standby and UPSes, and, in the Santa Cruz mountains, lots of need for something besides the utility...:) These PSes are solid, cheap on Ebay and take a lickin'... I'm using an adapter board from China that plugs into the edge connector and monitors output, (3 digit VM), has a power switch and a mess of 6 pin Molexes for bitcoin miners. Even has pads for a pot. Will trace it out and see if it goes to your resistor points. If not, I've got an Exacto and an iron..:) Thanks for the OVP hack. Subscribed. Stubat. (Anthro fan, 50year electronic tech, general crazy person.)
@@dobrodziej8050 Hi! Yep, you'll definitely need to disable the OVP for 15V out. It'll shut down quite a bit before 15V, otherwise. Once you disable the OVP and stay no higher than 15V, you should have a solid supply with lots of power. If you need more than 15V, you'd want to change the 16V output capacitors as he mentions in the video. And make sure you use quality low ESR capacitors. But just the OVP disable and the external adjustable resistor mod should get you what you need. A lot of quality PSU for not much $$! Be safe, be careful inside the unit and test for awhile at the 15V output to make sure all is stable and running cool. Take care! Stu
@@TinkerbatTech I have the same chip, after applying resistors 470-820 Ohms, the voltage on the power supply does not change. What could be the reason for the lack of regulation?
Likewise! It was a pleasure for sure, are you a member of any fb cb groups? There’s a lot of them out there, I’m a member of a few different ones, a popular one is “ cb radio show and tell “ hope to catch you again 73’s 589
I am actually, cb radio show and tell is one of them in fact, a few others as well that I cannot remember right off hand, I’m Mike Hannahs on Facebook as well, I have not been on Facebook for a few days but I need to go see what I’m missing there 😂😂😂
This is a Great Video,Best ive found on the net, so helpful in modding your DPS-800 , can you say how much current you have drawn at around 14v ? well done Hotwire, Thank you.
thank you Hotwire 589, i tore apart a bunch of tvs ' and misc electronics, a few years ago, and my friend gave me a server computer from 2009 , and it had 2 of these in it . , im a car audio geek, and i always had a knack for running big speakers in my room on a car amplifier, after seeing this video, i was able to understand more about where the overvoltage chip was , And how to bypass it . Aswell as how to increase the voltage using Resistors, i had a bunch of 150 ohm and 100 ohm resistors, i just soldered them to around 700 ohm, and increased my voltage until i got 14.9v, it was a big help. i have a 100 amp bitcoin s14++ i want to try and increase the voltage to 14.5v, but i cant quite figure out where the protection circuit is , under all the paste they coated everything in .
I was running my 1000w rms subwoofer amp through a 1000w atx PSU but since it only output 12v I didn't get the full 1000w rating from my amp since it requires 14.4v(basically when a alternator is on) but now ill.try this hack. These server PSU are cheap! I'm talk like $15 or less on ebay. You can run 2 of them in parallel for double the amp output
Just wanted to say thank you for the video, I have 4 of them and all have been working great until today, now when I plug it in the light does not come on and I have no voltage. Any idea what to check or look for, thanks for any help
Thanks for this very informative post Would you please advise if I need to do the same for hp ps-3701-1 where I can find the ovp and the pins to connect the variable resistor?
I do loke the variable option best. I am using the the hp dps1200sb a and run them at 15.5 i have currently got 3 of them stacked . They work great . I have 8 more to get set up then put them all in a box . That should give me all the power i will ever need. Great video. I think i will do one of these at 14.5 as a bench supply to run some radios on. And for various testing.
Thanks i was looking for something like this i have modded some before like a Chinese xbox psu i removed one of the resistors in the voltage divider on the sense circuit it goes from 10 to like 18 i assume it has an over voltage protection but thats a fine range for me but l dont remember what the output caps were I assume i looked and they were good but who knows they have not blown up yet but I was looking at doing that to some dell PSU's that are 80 platinum that are like 495 watts for like $12
Great video I would love to see a complete build with full variable voltage and the same with current. I am going to use two for 24v but am more interested in a bench supply I can use for other things thanks again for a great video
My server power supply has an issue. The relay on the high side is clicking. It starts doing this after few seconds of starting the psu. The heatsink in the middle of high side is really getting hot without any load attached to the psu. Any idea what is causing the components to heat up so quickly? Thank you
Thx for the great video. As I needed 24 volt I hooked up two of those in series. For that I disconected the earth from one and it worked okay until I swiched one on first under load, Now I have one that stopped working on the 12 V 82 Amp leads. Do you have any idea what could be the case or some sort of circuit drawing? thx and Regards Robbert
Any experience with the dps-1400bb power supplies ? Trying to get power from it but can only find power from the aux 12v soon as i pull more then 2.5 amps resets. How do i get the full 74 amps from this power supply ? Thanks
Great video! If the OVP is taken care of(disabled or resistor applied where appropriate) would the (variable) resistor between pin 32 and ground method also work on models such as the popular DPS-1200FB or DPS-1200SB series or are the pin 32 assignments different for other models?
cool video thanks for making. i am looking at this modification for myself. have you tested the output current capability at some of these different (higher) voltages levels? do you still get the full current output at the higher voltage level? or does the current output capability decrease? just curious how much it might decrease at ~14.5V, thanks!
Hotwire 589, I have different HP PSU model DPS-1200FB-1 A , I open the casing and look around the main board, I do not see the same IC as DPS-800GB. Do you have any clue how to hack into this model for change of DC output voltage? Thanks !
the impresive thing of this kind of psu is that they are freaking cheap and extreme quality and safe, any other psu will cost at least twice, the only bad thing of this is that this things are heavier than plumb, 8lbs or more, and what you dont spend in psu you spend it in shipping
Thank you the hack went very well. I have issues when trying to charge LifePo4 battery, because of 100% load on charger, is there a way to limit output current?
Hello there hotwire 589 could you help me please, I've got a server power supply model ATSN 7001044. I've looked inside for the chip that your talking about so I can disable the overvoltage protection but I can't seem to locate that chip 1002DS. Would you know if its one of the other chips on the board and would I have to do the same thing to disable it lift one of the legs off the board. Thank you.
Hello Sir, I did the same on the video and it worked good, yesterday it was working good but today I tried to use it and now is sending only 0.1V. I think I ruined my PSU. could you help me?
Hi, I love your video but I have a question, how to jump wire to turn on the power for model Intel DPS-1200TB A 1200W Power supply G18593-007? Looking forward for your reply, thank you 😊😊
I have a question? You made it sound like you pried the whole chip off the board? However it looks like you pried the second pin off the board and laid it back over the chip (I assume that it is the vcc pin for the chip)? Is this a correct assumption?
hy hot wire, men I buy one of those and put it a resistor to 32 to ground like the video clips and what happen was it blows something inside in to minutes ,it hurt me because it was brand new ... first I put the jumper and the resistor and plug to the outlet and the light ,don't start ,but the fans work , I take Out the resistor and star great but in 2 min blows inside ...the damage was done ,...
Hello Sir, Could you please help me regarding EMERSON POWER SUPPLY (MODEL-AA27020L) 600W power supply manually "ON" i am unable to Turn ON the power supply .may be wrong pin connection. Please advise what is the correct PIN to connect ? Many thanks
Gear info. I see that Tram hiding over there- LOL. I saw your comment on CB Radio Show and Tell, I was a member as well. I hit all your buttons and the like and two hundred sixteen like. Checkout old Radio night Sat 8pm ESt, sometime. Lets stay connected, 21
@@hotwire5894 10-4, channel 12. Any radio is ok, just started out as old radios. The chat area is live as is the show and you can comment . Old Tube Radio Network is the Granddaddy of them all out of Cali, and Dennis has been doing it for over 30+ years.
Any thoughts / advice on spotwelding batteries with this power supply? I will need a bank of FETs to switch the output of course, and probably a bank of elcaps for the extra initial current, or would the 80+ Amps be enough already?
Honestly a car battery is a far better for that. I have a medium size car battery I use to spot weld with and it puts out 1400amps in a single pulse 😯 good luck getting that from a PSU.
I just did this mode on two of my power supplies , it works great. I used a 1k 1wat resistor because that’s I had at the moment , I set the output voltage to 14v. I wish you could come up with a fix for the DPS 1200 . I have two that don’t work anymore . Thanks... great video!
Can these be turned into a variable bench power supply with constant current and voltage. I have one and want to see if I could use it for anodizing aluminum, which I need to control the current and voltage. Thanks.
That would be a pretty cool experiment, what I do with them is turn the voltage up, stack them together to create a hi amp power supply, for anodizing you might want to go the other way, turn the voltage down and keep the amps down, you might be able to go inside, turn the voltage down as far as it will go then use a potentiometer to control it. The next time I’m in one I’ll see how low I can get it to go.
Help please. my dps800 have a problem. when measure voltage on 12 pin it only reads .30v all other pins read normal. and led is not on but fan is working.. thanks
May I ask you a question, please: I want to use two of these @14V and combine the load capacity. Any pointers as how to stack these in parallel would be appreciated as these PSUs work better with pin 30 to +12v (can hold the voltage better when loaded), so when I connect pin 30 between 2 PSUs I may not be able to utilize the aforementioned "pin 30 hack"
Hello I want to make a 24v 2kw power supply for my rc charger do I need to disconnect the ground and if i need to disconnect it do I need to disconnect both power supply's from ground and do I need to make it open or can I just cut the ground wires
fantastic an clear explanation... Would it be possible to increase ovp to 16v (under cap limit)... Can you show us the capacitors you're replacing and what with,,,, Thanks again
I have seen a post/found some page ,think it was from a group of ham operators experimenting with these and they figured it out, problem for me is it involves micro components put into a micro space, very difficult! As for the capacitors , also difficult to remove, they are 16V, I want to change them to 24V, problem is the 24V is larger and don’t fit in the cabinet, if I can find into on the OVP I will share it here.
Thanks hotwire, have you tried to full auto range circuit for input voltage or made test with higher voltage with load and capacitor of higher voltage connected in paralell? Let say 24V 6A?
Hey sir nice video I was wondering the best way to connect the positive and negative to each side I was not trying to drill through it to fit lugs and nuts
@hotwire 589: do you now the different betwen the DPS-800GB and the DPS 800GB-3A? i have problems with the 13,3 overvoltage protection. i hope you have a info for me :) thanks in advance
2 notices for hackers. This PSU requires 2 things to successfully start. 1) Some initial load. 2)connected fans. If some of two fans is missing or not working, PSU switches 12V off after about 2 seconds
Thank bro very helpful.Mine turn on and after 2 sec turn of 12v but if i short with screwdriver pin 32 33 on short it turn on work perfectly.How to solve this problem?
I have done a couple of them and all but one works great, problem with the one is it powers on (green light) for 2 second and then turns off. Any suggestions on what to look at, thanks
Worked very well for me. Thank you. After nobbling the chip leg, my power LED didn't come back on, but with an 820 ohm resistor and a trim of the pot, I now have a power supply outputting 13.84 volts. Magic. I can't believe how small the chip legs are. Now to solder some big binding posts to + and -, to get as much of that 1000 watts available as possible. 73, M7KPS
Really helpful video! Perfect explanation!
Have build a Truck battery charger with two HP DPS800GB PSUs ... runs great!
Pushes 80 ampere in my lead acid battery!
Freakin' awesome! Just built same power supply for my CB Amp. Cost $35 total including a refurbished power supply and potentiometer. Putting out a regulated 13.76 volts DC at 58 amps!
Clearly and precisely explained to the point.
You are a great teacher.
Hi, nice video and nice work. Just a note. U can use the pot to raise the voltage until 15.5V for example, then measure the resistence of the pot. Pick a resistor with the closest value (allways higher) and put that resistor in series with a pot. That way u are safe from blown the out caps. Even if u turn the pot to zero.
Thanks a lot , I'm using one of these to charge a 4S Lifepo4 battery in my camper. Solar through a charge controller and this PSU through a dc-dc charge controller but it needs 14.2 volts. You Sir are a gentleman and a scholar.
So how does this charge the battery? Are you using it from 120v to charge it?
Thanks, the video is helpful. I made a car generator tester for your video. You clearly explain everything, it is very accessible to the average layman.
This guy's videos accurate. I've done exactly as he says and customized my own server power supply.
I noticed what appears to be a Madison in the background. I love the content of your video, I subscribed!
Thanks for showing the important details - that others don´t. Great Info!
great job on that supply ! when running radios or amps around 14 V or so is fine. most have a 15V max . I have IC 7300 and amp . what I found is using a 1FD or so cap close to radio or amp to smooth out SSB current. I used the walmart cap sold for sub amp. it has volt meter also . works great ! when parralo switching supplies set each to same volts using same meter. then use equal length of wire to connect together. rember wire AWG for amps ! you can add external crobar over volt protection if you want. need big SCR zener few outher parts.I have seen people use LED 12V 30 amp switchers for amps . they are cheap and made in china and don't last after running 15V or so . 73s
Thank you for this video. It was exactly what I was looking for.
Cheers for this it worked great. I did the 820ohm resistor but could only adjust to around 14.4v and then it dropped back to 13.3v if I went any higher with the pot. Left it at 14.33v as that is fine for my charger.
Is an OVP huck necessary to raise the voltage to, say, 14,33V?
Simply an outstanding video.
Hi there!!
Thank you for such a great video!! I just subscribed to your channel and I'm really enjoying your content. Keep up the great work!! Take care!
Aaron
Just came across this video, I’ve been looking for information like this. I’m looking for a battery stabiliser for a car battery 14v 60A.
Thanks you very much I appreciate it
Great! I bought two of these PSUs today for 50p each (0.60 USD) and they both work. Just what I need for a high power supply.
why do you post this on so many videos
@@thomasmize8842 He is lying about the price but keeps posting it because in his mind it gives the lie legitimacy. It's common for people who are insane.
Thank you very much! I have a couple of questions. About 4:15 time in the video I clearly see on the left what looks like a plug with 8 different color wires (8 if them) that are usually used in the ATX 24-pin connector. The colors also fit :) And the sticker on the PSU mentions amperage values for 3.3V and 5V, too.
Does that all mean that this particular PSU outputs not only 12V (as this type of PSUs usually do) but also 3.3V and 5V on some of its pins? I'm asking because that would make it a cheap alternative for a reliable ATX PSU in case the machine must run 24/7 as a server application. Because these PSUs are much more reliable than those built specifically for home PCs.
THANK YOU SO MUCH, YOU HELPED ME A LOT
WELL DONE :: detailed and complete . .. . . thanks !
Nicely explained, not a lot of excess verbiage, good visuals and good info. Thanks for posting! I'm planning on converting my emergency battery backup setup into an on-line UPS, using one (or two) of these PSUs. Float at 13.8 or so, even with refer, computers and all house lighting, under 600W steady-state max, 400W with computer and normal lights and about 80-150W at night, comms and refer. 6 golf cart batts to carry the load during outages. My current charge setup can't hack more than 30A or so. were these things can loaf along all day at 40-50 amps. Tired of outages. (yeah, I've been screwing around with this stuff since the tube days, lots of experience with standby and UPSes, and, in the Santa Cruz mountains, lots of need for something besides the utility...:) These PSes are solid, cheap on Ebay and take a lickin'... I'm using an adapter board from China that plugs into the edge connector and monitors output, (3 digit VM), has a power switch and a mess of 6 pin Molexes for bitcoin miners. Even has pads for a pot. Will trace it out and see if it goes to your resistor points. If not, I've got an Exacto and an iron..:) Thanks for the OVP hack. Subscribed. Stubat. (Anthro fan, 50year electronic tech, general crazy person.)
Is an OVP huck necessary to raise the voltage to, say, 15V?
@@dobrodziej8050 Hi! Yep, you'll definitely need to disable the OVP for 15V out. It'll shut down quite a bit before 15V, otherwise. Once you disable the OVP and stay no higher than 15V, you should have a solid supply with lots of power. If you need more than 15V, you'd want to change the 16V output capacitors as he mentions in the video. And make sure you use quality low ESR capacitors. But just the OVP disable and the external adjustable resistor mod should get you what you need. A lot of quality PSU for not much $$! Be safe, be careful inside the unit and test for awhile at the 15V output to make sure all is stable and running cool. Take care! Stu
@@TinkerbatTech Thank you very much, I am acting. I wish you a lot of health.
@@TinkerbatTech I have the same chip, after applying resistors 470-820 Ohms, the voltage on the power supply does not change. What could be the reason for the lack of regulation?
@@TinkerbatTech Thank you, everything is O.K. Is 15.5V a safe voltage for the power supply? Without replacing the capacitors.
These supplies would be awesome for ham radio!
Awesome........very easy to follow.
thanks, this help me to get a DPS-800GB starting after it had activated the over voltage protection :-)
Thanks for the video 589, 261 Ut said it and it was fun talking with you on the bands tonight
Likewise! It was a pleasure for sure, are you a member of any fb cb groups? There’s a lot of them out there, I’m a member of a few different ones, a popular one is “ cb radio show and tell “ hope to catch you again 73’s 589
I am actually, cb radio show and tell is one of them in fact, a few others as well that I cannot remember right off hand, I’m Mike Hannahs on Facebook as well, I have not been on Facebook for a few days but I need to go see what I’m missing there 😂😂😂
This is a Great Video,Best ive found on the net, so helpful in modding your DPS-800 , can you say how much current you have drawn at around 14v ? well done Hotwire, Thank you.
thank you Hotwire 589, i tore apart a bunch of tvs ' and misc electronics, a few years ago, and my friend gave me a server computer from 2009 , and it had 2 of these in it . , im a car audio geek, and i always had a knack for running big speakers in my room on a car amplifier, after seeing this video, i was able to understand more about where the overvoltage chip was , And how to bypass it . Aswell as how to increase the voltage using Resistors, i had a bunch of 150 ohm and 100 ohm resistors, i just soldered them to around 700 ohm, and increased my voltage until i got 14.9v, it was a big help. i have a 100 amp bitcoin s14++ i want to try and increase the voltage to 14.5v, but i cant quite figure out where the protection circuit is , under all the paste they coated everything in .
I was running my 1000w rms subwoofer amp through a 1000w atx PSU but since it only output 12v I didn't get the full 1000w rating from my amp since it requires 14.4v(basically when a alternator is on) but now ill.try this hack. These server PSU are cheap! I'm talk like $15 or less on ebay. You can run 2 of them in parallel for double the amp output
Just wanted to say thank you for the video, I have 4 of them and all have been working great until today, now when I plug it in the light does not come on and I have no voltage. Any idea what to check or look for, thanks for any help
Great videos
Thanks for this very informative post
Would you please advise if I need to do the same for hp ps-3701-1 where I can find the ovp and the pins to connect the variable resistor?
is there another way to jump it to leave it always on? I got plug a breakout board on the back. thanks
I do loke the variable option best.
I am using the the hp dps1200sb a and run them at 15.5 i have currently got 3 of them stacked . They work great . I have 8 more to get set up then put them all in a box . That should give me all the power i will ever need.
Great video.
I think i will do one of these at 14.5 as a bench supply to run some radios on.
And for various testing.
You must be a BBI fan?
Very helpfull, thanksss!!!
Thanks i was looking for something like this i have modded some before like a Chinese xbox psu i removed one of the resistors in the voltage divider on the sense circuit it goes from 10 to like 18 i assume it has an over voltage protection but thats a fine range for me but l dont remember what the output caps were I assume i looked and they were good but who knows they have not blown up yet but I was looking at doing that to some dell PSU's that are 80 platinum that are like 495 watts for like $12
Thanks. Best vid on the net
Great video I would love to see a complete build with full variable voltage and the same with current. I am going to use two for 24v but am more interested in a bench supply I can use for other things thanks again for a great video
You need to float DC ground on one of the power supplies otherwise they'll get damaged when they are in touch.
My server power supply has an issue. The relay on the high side is clicking. It starts doing this after few seconds of starting the psu. The heatsink in the middle of high side is really getting hot without any load attached to the psu. Any idea what is causing the components to heat up so quickly? Thank you
Thx for the great video.
As I needed 24 volt I hooked up two of those in series. For that I disconected the earth from one and it worked okay until I swiched one on first under load, Now I have one that stopped working on the 12 V 82 Amp leads. Do you have any idea what could be the case or some sort of circuit drawing?
thx and Regards Robbert
Any experience with the dps-1400bb power supplies ? Trying to get power from it but can only find power from the aux 12v soon as i pull more then 2.5 amps resets. How do i get the full 74 amps from this power supply ? Thanks
Has anyone done the PL42, I can get it to turn on but increasing voltage is where I am stock on.
Great video! If the OVP is taken care of(disabled or resistor applied where appropriate) would the (variable) resistor between pin 32 and ground method also work on models such as the popular DPS-1200FB or DPS-1200SB series or are the pin 32 assignments different for other models?
thank you for the Info
Anyone have the info for harms-pl28 to increase voltage the pin out seems to be different. Thanks
And which are the positive and negative output pads?
cool video thanks for making. i am looking at this modification for myself. have you tested the output current capability at some of these different (higher) voltages levels? do you still get the full current output at the higher voltage level? or does the current output capability decrease? just curious how much it might decrease at ~14.5V, thanks!
what pins do you solder the adjustable pot to? i have 4 1200 watt hstns-pl11's im gonna link together.
Hotwire 589, I have different HP PSU model DPS-1200FB-1 A , I open the casing and look around the main board, I do not see the same IC as DPS-800GB. Do you have any clue how to hack into this model for change of DC output voltage? Thanks !
the impresive thing of this kind of psu is that they are freaking cheap and extreme quality and safe, any other psu will cost at least twice, the only bad thing of this is that this things are heavier than plumb, 8lbs or more, and what you dont spend in psu you spend it in shipping
Just converted my second one running 16 volts two of them running 120 amps plus into lithium batteries works awesome
Are you running them at 4S? Or are you running a boost converter?
Thx helps alot!
Thank you the hack went very well. I have issues when trying to charge LifePo4 battery, because of 100% load on charger, is there a way to limit output current?
Thanks 🙏🏻
Can you link these power supplies into 24v if you take the ground off the dc on one of them?
is the Minus/Negative side connected to ground/chassis ?
(i need something like that for an amp, need 4 in series to get 55v)
hello dps800gb can be connected in parallel ? for 14.5v and 137amp
Grear video, do you have a similar one for the HP ESP120 3kW ? it's 51.4V 57A nom. useful to get it to 57.6V
Hi, can you tell me how to disable OVP to Delta DPS-750 nb?
thanks....
Hello there hotwire 589 could you help me please, I've got a server power supply model ATSN 7001044. I've looked inside for the chip that your talking about so I can disable the overvoltage protection but I can't seem to locate that chip 1002DS. Would you know if its one of the other chips on the board and would I have to do the same thing to disable it lift one of the legs off the board. Thank you.
Thanks!
If if just going to run one radio is it really necessary to disable the voltage protection?
Hello Sir, I did the same on the video and it worked good, yesterday it was working good but today I tried to use it and now is sending only 0.1V. I think I ruined my PSU. could you help me?
Hi, I love your video but I have a question, how to jump wire to turn on the power for model Intel DPS-1200TB A 1200W Power supply G18593-007? Looking forward for your reply, thank you 😊😊
Tengo una de esas me da el amperaje pero no prende el bombillo ni los ventiladores como le ago
how many db is the noise? usually the noise interferes with the frequency hf. thx
I just bought 2 of these from Ebay. One turns on the other does not :/
I have a question? You made it sound like you pried the whole chip off the board? However it looks like you pried the second pin off the board and laid it back over the chip (I assume that it is the vcc pin for the chip)? Is this a correct assumption?
hotwire 589 will you be uploading the 411 amp stacked version video?
hy hot wire, men I buy one of those and put it a resistor to 32 to ground like the video clips and what happen was it blows something inside in to minutes ,it hurt me because it was brand new ... first I put the jumper and the resistor and plug to the outlet and the light ,don't start ,but the fans work , I take Out the resistor and star great but in 2 min blows inside ...the damage was done ,...
hello, i want to modify my hp brand pl 14 power supply device and take out 14v, can you help
Thanks I have a 200 amp one
Hey there..! I had received 13.6 V for a wile .. but after turned on without od load I just have 1.5V any idea what’s going on..?
Thank you in advance
thanks one ordered and going to get peaked and tweaked thanks a bunch
The conversion remove the over voltage protection? Congratulations! 73!
Thanks. is there any solution about how to adjust the output voltage (lower)? I need 10v instead of 12,5
You would probably need to use a separate voltage regulator.
Hello Sir,
Could you please help me regarding EMERSON POWER SUPPLY (MODEL-AA27020L) 600W power supply manually "ON" i am unable to Turn ON the power supply .may be wrong pin connection. Please advise what is the correct PIN to connect ? Many thanks
Gear info. I see that Tram hiding over there- LOL. I saw your comment on CB Radio Show and Tell, I was a member as well. I hit all your buttons and the like and two hundred sixteen like. Checkout old Radio night Sat 8pm ESt, sometime. Lets stay connected, 21
Dirty Diaper 21 old radio night ? Is that like a check in for old radio’s, if so want channel?
@@hotwire5894 10-4, channel 12. Any radio is ok, just started out as old radios. The chat area is live as is the show and you can comment . Old Tube Radio Network is the Granddaddy of them all out of Cali, and Dennis has been doing it for over 30+ years.
@@hotwire5894 Yes, Ch12, but you can join in the chat area anyway,
Dirty Diaper 21 tried to get on live chat last night and was unable, I’ll try again next week, I see cb radio show and tell is back up
@@hotwire5894 I saw that also, I am glad they decided to keep going.See you then, 21
I can not get it working sir
When i plug it in (on off jumped ofc)
Light comes on the turns off immediately?’!?
Please help!
Awesome
Thanks for the detailed video on modifying! Can these supplies take high voltage DC input, say from solar panel string directly?
These turn AC input and turn it into DC output. So no, it can't take DC input.
Any thoughts / advice on spotwelding batteries with this power supply?
I will need a bank of FETs to switch the output of course, and probably a bank of elcaps for the extra initial current, or would the 80+ Amps be enough already?
Honestly a car battery is a far better for that. I have a medium size car battery I use to spot weld with and it puts out 1400amps in a single pulse 😯 good luck getting that from a PSU.
my hp dps800 , "ic 7c35 1002ds" how desolate ic ???
I just did this mode on two of my power supplies , it works great.
I used a 1k 1wat resistor because that’s I had at the moment , I set the output voltage to 14v.
I wish you could come up with a fix for the DPS 1200 . I have two that don’t work anymore .
Thanks... great video!
Can you explain Pin 32? What I should connect in other power supply Like Albecom PWS-801-1R
@@MrAmin9009 Sorry, But I could not help you with your power supply, the pinout is completely different to the DPS-800. Good Luck.
Did you desolder the voltage regulator chip?
Can these be turned into a variable bench power supply with constant current and voltage. I have one and want to see if I could use it for anodizing aluminum, which I need to control the current and voltage. Thanks.
That would be a pretty cool experiment,
what I do with them is turn the voltage up, stack them together to create a hi amp power supply, for anodizing you might want to go the other way, turn the voltage down and keep the amps down, you might be able to go inside, turn the voltage down as far as it will go then use a potentiometer to control it. The next time I’m in one I’ll see how low I can get it to go.
Help please. my dps800 have a problem. when measure voltage on 12 pin it only reads .30v all other pins read normal. and led is not on but fan is working.. thanks
Did you find solution?
May I ask you a question, please: I want to use two of these @14V and combine the load capacity. Any pointers as how to stack these in parallel would be appreciated as these PSUs work better with pin 30 to +12v (can hold the voltage better when loaded), so when I connect pin 30 between 2 PSUs I may not be able to utilize the aforementioned "pin 30 hack"
Very simple to connect in parallel, just get 2 PSU and connect both of them to a positive bus bar and a negative bus bar. All done.
I need help this pws modify to pc pws ( use intel, amd chip.. ( i use x370 am4 and ryzen 2600 )
Bonjour peut-on faire la même modifications sur le modèle dps1200fb merci
Hello
I want to make a 24v 2kw power supply for my rc charger do I need to disconnect the ground and if i need to disconnect it do I need to disconnect both power supply's from ground and do I need to make it open or can I just cut the ground wires
You just need to float DC ground from one of the power supplies.
fantastic an clear explanation... Would it be possible to increase ovp to 16v (under cap limit)... Can you show us the capacitors you're replacing and what with,,,, Thanks again
I have seen a post/found some page ,think it was from a group of ham operators experimenting with these and they figured it out, problem for me is it involves micro components put into a micro space, very difficult! As for the capacitors , also difficult to remove, they are 16V, I want to change them to 24V, problem is the 24V is larger and don’t fit in the cabinet, if I can find into on the OVP I will share it here.
Thanks hotwire, have you tried to full auto range circuit for input voltage or made test with higher voltage with load and capacitor of higher voltage connected in paralell? Let say 24V 6A?
Just run 2 of these PSU in series if you want 24v.
DELTA DPS-800QB A 800W power supply unit hack
I want to, but I can't do anything
How can I start it? Thank you.
Japan Yamanaka
Hey sir nice video I was wondering the best way to connect the positive and negative to each side I was not trying to drill through it to fit lugs and nuts
What ever you do DON’T drill through it, it has a multi-layer pcb and you will destroy it, I soldered all of mine.
Thanks I was trying to run 2 amps and a head unit from one of these
very good boss
Dear Sir,
Very interesting clip. Pls help me: Do you have any experience how to modify Dell DPS-650RB B 650w server Psu for 12v? Best regards
@hotwire 589: do you now the different betwen the DPS-800GB and the DPS 800GB-3A?
i have problems with the 13,3 overvoltage protection.
i hope you have a info for me :) thanks in advance
Internet says: connect 26 to GND.
영상 좋아요! 혹시 전류도 제어 할수 있는 방법이 있읍니까?
Nice video! Is there a way to control the current?
2 notices for hackers. This PSU requires 2 things to successfully start. 1) Some initial load. 2)connected fans. If some of two fans is missing or not working, PSU switches 12V off after about 2 seconds
Thank bro very helpful.Mine turn on and after 2 sec turn of 12v but if i short with screwdriver pin 32 33 on short it turn on work perfectly.How to solve this problem?
did you tried with the DPS-500 EB ? I am lost with it.
I have done a couple of them and all but one works great, problem with the one is it powers on (green light) for 2 second and then turns off. Any suggestions on what to look at, thanks
If it’s fan is working( you can see with a torch) then wait for 30 minutes -1 hour as green light turns on above 10v
gracias, saludos