Graham I'm glad you did this i just purchased a 2011 27-inch IMAC about a week ago I'm not having any trouble but this is good to know just in case, That is why i like watching your channel i have learned a lot watching you and i Still say you would be a great professor at a tech college.
Thank you for showing us the power button. With this knowledge, I managed to push the button inside and under the rim, exposing the culprit - the metal ring. It was easy enough to break it with a small screwdriver and to pull it out with needle nose pliers.
Really been enjoying your videos! Just a helpful hint. When you want to place something back in the exact same position, use a sharpie pen to mark a line on the piece and on the case, then line up both pieces to the line. Saved me many a time!
I finally got my Imac work with removing the o ring, which is the major problem for this kind of issue, remember to remove all the memory before you start the job, it is a headache for me to put the motherboard back. This video is very helpful!!!!
funny, when I replaced the HDD I used two brand new toilet plunger, worked just great....people just gave me those looks....but it was a clean install.
Thanks for the hint with the debug led. That saved me from dissemble everything. It turned out my power cable was broken meanwhile. 😮 Just used a different cable and everything worked (even though I suspected the switch first). Thanks for you great video and help!💝
Thank for the great video. It's been 35 years since i last stripped down a computer. It was an old 1984 Compaq portable. Nothing quite prepared me for this. It was in the end very complex and took about 6 hours for me as I had to double check each step. The on/off button had the same issue with the ring and I hairdryered the switch back on. But the resolution of the video as not clear enough to tell which plugs go in which sockets and it took 4 goes to reseat the mother board. it was not clear which way up some of the connectors go back in. The small ones seemed to be mostly with the silver leads showing upwards but for the load speaker sockets that was not the case. I had to try over and over again to which way round a plus was better seated and it was very marginal. Would recommend a bit of tippex on one side of all the plugs to confirm which sockets are used and which way the plug goes in, plus well lit close up photos - before you take things apart, and for each cable to label them with numbers and cellotape them to the casing to avoid getting them hidden under the mother board when you reseat it. (I trick I've used on mice getting into our humane traps to check we were not just reccyling the same mice - which we were. )First time I powered up at the end the screen was blank and the fourth LED was not lit so I assume a display comms issue - it thin ribbon connector was not seated properly. There was a huge sense of relief when the machine powered up and I could see the screen. I check the mouse and keyboard and after reinstalling they both worked. Everything seems to work . But, when I checked the network I got the error "Network preference pane not available" - I got this twice. Then for no reason it just appeared. Speedtest.net gave me 62 Meg download and 35 Meg upload - sop for the lockdown that's great. Spotify came out of both speakers. So we're in business. What a relief. Never again. In hindsight I would do what the other contributor did - drill a hole and put in your own switch in. Thanks so much Adamant IT for the great but rollercoaster ride!!
Thank you, one of the most complete and clear video about procedure to dismantling and reassembling iMAC I seen on you Tube. Very Good. Only a dubt about the decision to remove the ring part of the switch on/off buttom. I have the same problem during switching with mine 2011 iMAC 21,5". Il try to repair it whitout removing metal ring and then I'll let you know.👍
I just had the same problem, but what if it was just a loose washer..? So I turned the imac around and gave it a good shaking, and boom! It started immediately! Saved me an hour or two of screwing/unscrewing. Thanks for your great work and inspiriation :-)
For anyone who's still dealing with this issue, I have managed to push the button cover part inwards just far enough so that I could force slide it underneath the surface of the case, deep far enough to expose the actual button membrane (with the "culprit" metal ring, which I could then remove). You can see in this video that the plate holding the membrane with the button is actually glued to the case, not screwed it, so you can force it inwards. Now I can just push the button directly through the membrane and it works - the PSU is functional, so the Mac boots up. I couldn't fathom taking the insides apart bit by bit, so I decided to "brute furce". Mind that I haven't checked if I hadn't damaged the speaker casing, and thus the speaker itself this way, as the Mac is missing the hard drive, which I'm yet to replace - once I reinstall Mac OS I will check if the speakers suffered any damage during my break in :)
Extremely WELL DONE "how to" video. I'll be saving this for another night when I have not been enjoying toddies. Ironically, all I use this unit for is to listen to tunes off my thumbdrive, in my garage, as I'm working on things. LOL
Amazing Solution and i really appreciate the way you setup your camera to make this video more helpful with all detail instructions ..... Bless you !!!!
I still have a 27" iMac of that type. The spare SATA cable is used on mine for a hybrid drive. It has a 250GB SSD and a 750GB HDD which are combined into a single 1TB drive. The OS then shifts things around so the most commonly used files are stored on the SSD.
Thank you very much for this video. I had exactly the same problem with my IMac 27 " from mid 2011 and now the power button - with the help of your instructions - works fine again!
Good instructions. I fixed my old Mac. I did add a bit of glue to the ring when I reinstalled it. Taking off the metal disc was difficult. I used a chisel to pry it off but it got bent pretty badly. Still, it is working. Good idea to take pictures of where the screws and cables go. When I had difficulty reinstalling the MB, I realized some of the cable around the base were obstructing. I know this because I had to take it about twice. Turns out I forgot to reinstall the RAM chips; I though I missed a connection. LOL.
Thanks, man, I am just doing exactly the same job here in my little office, gotta be so careful but I am stuck at getting that power button out, will heat it up from the back to soften the glue, that design though.... FARGIN unreal!! But glad you made this video so I can follow along.
Great video. I had the same, exact 27" iMac with a power button that was mashed in by my impatient sister. Four-hundred U.S. dollars was the price that was quoted to me to repair the computer. I chose not to repair it as it was five years old at the time.
When reinstalling the logicboard I had trouble positioning it. Heat exchanger stuck on the power module. I removed the power module and it fit without any trouble. Again thanks for this helpful video.
I found this video looking for how to add an external button. I think soldering a couple of wires straight to where the switch clips into the logic board should do it. Thanks for the detailed video.
@9:22 - "and now I'm going to wait for that sodding alarm in the background to go away". I actually paused the video and looked in my server rack to see which machine had gone on the blink. "beep beep beep" ;)
I have a 2009 iMac that won´t start. It has my wife's photographs on it and when it failed, it must have been doing a backup as the backup file on the external HDD shows Zero bytes! And yes, I have only one backup drive. I followed this video - there are some board differences, but when I plugged it in, there were no lights showing. I had 240VAC at the PSU input and I proved the switch was good, so I can only surmise the PSU board is defunct. It looks OK, no burns or swollen caps. I ordered a used but good PSU from eBay for 45 euros. In the week I have till it arrives, I will try to find out what went wrong with the PSU. Thanks for putting this video up, the inside of any Mac is a daunting prospect and any help is greatly appreciated.
...i have the imac... apart ...this one purchased in japan ...and a different but difficult left side to fit over the dvd...eek ...err... well we'll manage of course thanks for the tips and watch outs
My iMac is in use for 12 hours a day 7 days a week, I press the power button about 3 times per year. People just don't know what standby mode is they reboot their Macs every time they use them.
You are a clever and talented Technician. But I am not in favor of the removal of the ring on the switch. It only needed to be aligned and to prevent it from being misaligned again a small amount of silicon glue would have been enough. My personal point of view ion “repair” is to restore the unit to its original state. I am sure the click sound of the power switch will not be the same without the ring.
Enjoyed your video. I've been running my iMac of an external drive for about five years now. This morning everything took a turn for the worse and after a bit of a fit a couple of days ago where it wouldn't power on, but "got better", today it's dead and won't power on, so looks like this is an opportunity to kill birds with one stone, and investigate the power issue while changing over the hard disk. Wasn't the purpose of the washer to ensure that the power button lined up properly?
Hey bro, I kinda want to fix it myself, but I'm worried I'll end up breaking it... Can I just send it to you so you can fix it? Just kidding xD ... I'm doing my best here to dont get overly depressed about my imac dying.
Hi mate , I have a problem with my iMac model mid2011 .... the problem it’s the Led no2 doesn’t want to turn on . I bought a new power supply and the problem still holding . Do you have any idea what else can be ? Regards MiLian
Find the PowerButton wire connecting to the logic board, and use some tweezers to short its pins together - this will ensure that it's not just a bad power button. Otherwise, given that you've already replaced the PSU, it sounds like the logic board has died. Power Button is more likely though.
Adamant IT so I been trying the trick with the pins... and doesn’t work . You think the issue can be the logic board ? To be burn ? Thank you for replying
I don't think so. There's nothing special about the iMac power cable, and if you've got Standby power (LED1) then the power cable is working. Logic board problems are pretty rare with iMacs, but it seems like that's what you've got =/
Adamant IT ok let’s say I will buy another logic board and it’s still no working ... what something else can be the problem ? I’m asking because I don’t want to start to buy all the spares one by one 😂 thank you reply back
Thank you, this video is great and just what I need to do for my iMac that won't start. Do you know where I can have these steps printed out? I'm going to attempt to do this myself (Apple doesn't work on old Macs), and I need to have step by step that I can refer to it as I go. Thanks.
Hello there ! Thanks a bunch for the great video. Unfortunately the trick with the power button on the logic board did not work for me… Nothing happened. the LED 1 is always on. Can it be the logic board? Interesting is that when i plug in the cable and hold the power button, all the fan are coming on in high speed. but nothing else. Shall i try with another logic board? Thanks for your advice? BR
I thought I had a power button fault but looking at the diagnostic lights it may be another issue. When I plug the power cable in light 1 flickers once then nothing. Any ideas ?
Amazing video thanks. I plugged my IMac into the power and the 1st LED Green light came on but went off very quickly, are you able to advise what this could be? Guessing logic board failure.
@@Adamant_IT I’ve had issues with it powering on now for a few weeks, it is very much a pot luck thing. I’ve tried now for 2 days and nothing, but when I was checking the LED lights it did power on and now it doesn’t again.
@Adamant it Hello there, I checked the power button as you said by shorting out the PWR Button cable and only 2 first lights (left to right) came on NOT all 4. Whatndoes that mean?
Hello! I need help. Someone removed the power button socket on my Imac before I bought it and soldered another button on those pads that you shorted with the tweezers. But that idiot managed to rip off one of the pads. Is there somewhere else I can make the connection to turn on the imac?
Could be a dead PSU. If it's a 2011 or older model like in this video, I'd replace the computer. If it's a thin one (Late 2012 onwards) then you can find used PSUs on eBay.
Hi Adamant IT. Thank you for your well infomred video. I will apprecaite if you or anyone in your forum could tell me what is happening to my Imac mid 2011 27 inch not coming on. The stand-by LED light on the boards comes on and goes off immdiately when I insert the power cable. It is not stable for me to press the switch botton . So is the problem with my power board of the logic board. I need your urgent response for me to know what to buy as replacement
@@Adamant_IT Hi, Thanks for the advice. I just change my power supply . unfortunately my imac did not come on. it was behaving the way it was before changing it. that is the first led standby light on the logic board showing green was not stable when you put the plug in. It goes off and on rather than it to be stable. immediatly I press the switch nothing happens and the led light will stop flicking. After a while when I remove the plug and repeat the process the led light will continue to flickers rather than being stable. What else could be responsible please. Just to note also,When I tested my power supply with the meter, the input voltage was 240 but there was no output voltage to signify that a supply is going on to the board
Hi, when i press the power button/short the switch (which is done at around 8.00 in the video), the 1st green LED turns off and doesn't illuminate again until i reconnect the power cable. Any ideas on where to go from here? Cheers
Hi, I replaced the PSU and now the 1st green LED blinks once when the power button is pressed. Nothing else happens. Does this sound like a logic board problem?
@@Adamant_ITthanks I have an iMac a1312 that someone brought me to repair but it doesnt have the gpu or heatsink. It was with another tech before wonder if they forgot to install it back. All it does is the fans turn on kinda loud and no startup chime.
Dude!!! Wtf is going on, my iMac screen is fixed from the inside. Mine doesn’t pop out? No one is explaining this on UA-cam. Can I open the back? What is going on?
"The screen is disconnected and it's all very upset about the whole situation" I'll be laughing about that for days.
Graham I'm glad you did this i just purchased a 2011 27-inch IMAC about a week ago I'm not having any trouble but this is good to know just in case, That is why i like watching your channel i have learned a lot watching you and i Still say you would be a great professor at a tech college.
Wow! What a considerate person you are. Taking all that effort so we dont miss any detail. Legend!
Thank you for showing us the power button. With this knowledge, I managed to push the button inside and under the rim, exposing the culprit - the metal ring. It was easy enough to break it with a small screwdriver and to pull it out with needle nose pliers.
Really been enjoying your videos! Just a helpful hint. When you want to place something back in the exact same position, use a sharpie pen to mark a line on the piece and on the case, then line up both pieces to the line. Saved me many a time!
Good suggestion 👍🏼
I found a "dead" 27" iMac in ewaste, turns out the power button was just jammed like it was here! Thank you for sharing.
I finally got my Imac work with removing the o ring, which is the major problem for this kind of issue, remember to remove all the memory before you start the job, it is a headache for me to put the motherboard back. This video is very helpful!!!!
funny, when I replaced the HDD I used two brand new toilet plunger, worked just great....people just gave me those looks....but it was a clean install.
Thanks for the hint with the debug led. That saved me from dissemble everything. It turned out my power cable was broken meanwhile. 😮 Just used a different cable and everything worked (even though I suspected the switch first). Thanks for you great video and help!💝
Thank for the great video. It's been 35 years since i last stripped down a computer. It was an old 1984 Compaq portable. Nothing quite prepared me for this. It was in the end very complex and took about 6 hours for me as I had to double check each step. The on/off button had the same issue with the ring and I hairdryered the switch back on. But the resolution of the video as not clear enough to tell which plugs go in which sockets and it took 4 goes to reseat the mother board. it was not clear which way up some of the connectors go back in. The small ones seemed to be mostly with the silver leads showing upwards but for the load speaker sockets that was not the case. I had to try over and over again to which way round a plus was better seated and it was very marginal. Would recommend a bit of tippex on one side of all the plugs to confirm which sockets are used and which way the plug goes in, plus well lit close up photos - before you take things apart, and for each cable to label them with numbers and cellotape them to the casing to avoid getting them hidden under the mother board when you reseat it. (I trick I've used on mice getting into our humane traps to check we were not just reccyling the same mice - which we were. )First time I powered up at the end the screen was blank and the fourth LED was not lit so I assume a display comms issue - it thin ribbon connector was not seated properly. There was a huge sense of relief when the machine powered up and I could see the screen. I check the mouse and keyboard and after reinstalling they both worked. Everything seems to work . But, when I checked the network I got the error "Network preference pane not available" - I got this twice. Then for no reason it just appeared. Speedtest.net gave me 62 Meg download and 35 Meg upload - sop for the lockdown that's great. Spotify came out of both speakers. So we're in business. What a relief. Never again. In hindsight I would do what the other contributor did - drill a hole and put in your own switch in. Thanks so much Adamant IT for the great but rollercoaster ride!!
A bit late, but there's always iFixit as a resource for these sorts of things.
Thank you, one of the most complete and clear video about procedure to dismantling and reassembling iMAC I seen on you Tube. Very Good. Only a dubt about the decision to remove the ring part of the switch on/off buttom.
I have the same problem during switching with mine 2011 iMAC 21,5". Il try to repair it whitout removing metal ring and then I'll let you know.👍
I just had the same problem, but what if it was just a loose washer..? So I turned the imac around and gave it a good shaking, and boom! It started immediately! Saved me an hour or two of screwing/unscrewing. Thanks for your great work and inspiriation :-)
For anyone who's still dealing with this issue, I have managed to push the button cover part inwards just far enough so that I could force slide it underneath the surface of the case, deep far enough to expose the actual button membrane (with the "culprit" metal ring, which I could then remove). You can see in this video that the plate holding the membrane with the button is actually glued to the case, not screwed it, so you can force it inwards.
Now I can just push the button directly through the membrane and it works - the PSU is functional, so the Mac boots up. I couldn't fathom taking the insides apart bit by bit, so I decided to "brute furce".
Mind that I haven't checked if I hadn't damaged the speaker casing, and thus the speaker itself this way, as the Mac is missing the hard drive, which I'm yet to replace - once I reinstall Mac OS I will check if the speakers suffered any damage during my break in :)
Extremely WELL DONE "how to" video. I'll be saving this for another night when I have not been enjoying toddies. Ironically, all I use this unit for is to listen to tunes off my thumbdrive, in my garage, as I'm working on things. LOL
Haha - "oh!, and now its all upset about the situation..." Great vid, well explained - Thanks
Amazing Solution and i really appreciate the way you setup your camera to make this video more helpful with all detail instructions ..... Bless you !!!!
I still have a 27" iMac of that type. The spare SATA cable is used on mine for a hybrid drive. It has a 250GB SSD and a 750GB HDD which are combined into a single 1TB drive. The OS then shifts things around so the most commonly used files are stored on the SSD.
THANK YOU. Fantastic job putting this video together. Followed your instructions to the T, and was able to fix my iMac.
Great job.
Thank you very much for this video. I had exactly the same problem with my IMac 27 " from mid 2011 and now the power button - with the help of your instructions - works fine again!
First hardware related video that actually works
Good instructions. I fixed my old Mac. I did add a bit of glue to the ring when I reinstalled it. Taking off the metal disc was difficult. I used a chisel to pry it off but it got bent pretty badly. Still, it is working. Good idea to take pictures of where the screws and cables go. When I had difficulty reinstalling the MB, I realized some of the cable around the base were obstructing. I know this because I had to take it about twice. Turns out I forgot to reinstall the RAM chips; I though I missed a connection. LOL.
Really very good teaching and demonstration video. Thank you very much 👍👍👍
Thanks, man, I am just doing exactly the same job here in my little office, gotta be so careful but I am stuck at getting that power button out, will heat it up from the back to soften the glue, that design though.... FARGIN unreal!! But glad you made this video so I can follow along.
wow! that was awesome. checked my power button the same way. now need to replace the metal ring from button.
Thank you for your precious video: you saved me to spend lots of money on wrong part substitution. Great job !
The metal ring acts like a spring...This iMac 27 is the best design of all iMacs....
Thanks soooo much AdamantIT worked like a charm... I owe you many a beverage of your choice x
"Sticky-fies" Is that a British expression? I loved it!
Great video. I had the same, exact 27" iMac with a power button that was mashed in by my impatient sister. Four-hundred U.S. dollars was the price that was quoted to me to repair the computer. I chose not to repair it as it was five years old at the time.
Thank you so very much. I did this “operation” on my IMAC 27 2011. And it solved my problems to.
Top man, excellent video straight forward video. fixed my iMac. thanks
This was great. I had the same problem with my iMac and was able to fix it!
This was a very good breakdown and visually helpful video. Your are great for putting together such a good video
When reinstalling the logicboard I had trouble positioning it. Heat exchanger stuck on the power module. I removed the power module and it fit without any trouble. Again thanks for this helpful video.
Great video, thanks for the help dude!
Wow....This was INCREDIBLY helpful. Thank you!!!
I found this video looking for how to add an external button. I think soldering a couple of wires straight to where the switch clips into the logic board should do it. Thanks for the detailed video.
Wow! complimenti preciso e scrupoloso professionale
@9:22 - "and now I'm going to wait for that sodding alarm in the background to go away". I actually paused the video and looked in my server rack to see which machine had gone on the blink. "beep beep beep" ;)
No guts, No glory.
So, so true.
Good thorough video 👍🏼
youre a good teacher
Working on a friends iMac. Great vid. Hope this is the issue.
I have a 2009 iMac that won´t start. It has my wife's photographs on it and when it failed, it must have been doing a backup as the backup file on the external HDD shows Zero bytes! And yes, I have only one backup drive. I followed this video - there are some board differences, but when I plugged it in, there were no lights showing. I had 240VAC at the PSU input and I proved the switch was good, so I can only surmise the PSU board is defunct. It looks OK, no burns or swollen caps. I ordered a used but good PSU from eBay for 45 euros. In the week I have till it arrives, I will try to find out what went wrong with the PSU. Thanks for putting this video up, the inside of any Mac is a daunting prospect and any help is greatly appreciated.
great, thank you for this
Spare SATA can be used for another SSD for instance and mount it under the Stuperdrive.
good video for the fix.
The service tech wanted to change the logic board in my Mid 2011 when it was just the power switch.
...i have the imac... apart ...this one purchased in japan ...and a different but difficult left side to fit over the dvd...eek ...err... well we'll manage of course thanks for the tips and watch outs
My iMac is in use for 12 hours a day 7 days a week, I press the power button about 3 times per year. People just don't know what standby mode is they reboot their Macs every time they use them.
Wow all that disassemble for a button. Apple should totally add a removable panel on the backside so its easier to acess
Apple wants you to bring it in for a $400+ repair job or sell you another system… 🤷♂️.
Amazing. Thank you!
Thanks for this video, it was very helpful. Problem still not solved. However the ring was migrated and blocked the power switch.
good video
You are a clever and talented Technician. But I am not in favor of the removal of the ring on the switch. It only needed to be aligned and to prevent it from being misaligned again a small amount of silicon glue would have been enough. My personal point of view ion “repair” is to restore the unit to its original state. I am sure the click sound of the power switch will not be the same without the ring.
Should of glued spacer directly on the back of switch.
Should of marked the position of switch with a felt pen before removing.
Enjoyed your video.
I've been running my iMac of an external drive for about five years now. This morning everything took a turn for the worse and after a bit of a fit a couple of days ago where it wouldn't power on, but "got better", today it's dead and won't power on, so looks like this is an opportunity to kill birds with one stone, and investigate the power issue while changing over the hard disk.
Wasn't the purpose of the washer to ensure that the power button lined up properly?
Yeah I’ll never work on my iMac. No way.
Hey bro, I kinda want to fix it myself, but I'm worried I'll end up breaking it... Can I just send it to you so you can fix it? Just kidding xD ... I'm doing my best here to dont get overly depressed about my imac dying.
Hi mate , I have a problem with my iMac model mid2011 .... the problem it’s the Led no2 doesn’t want to turn on . I bought a new power supply and the problem still holding . Do you have any idea what else can be ? Regards MiLian
Find the PowerButton wire connecting to the logic board, and use some tweezers to short its pins together - this will ensure that it's not just a bad power button.
Otherwise, given that you've already replaced the PSU, it sounds like the logic board has died. Power Button is more likely though.
Adamant IT so I been trying the trick with the pins... and doesn’t work . You think the issue can be the logic board ? To be burn ? Thank you for replying
Adamant IT I want to mention my power cord it’s not the original one . I bought a random cable from amazon. That’s can be a problem?
I don't think so. There's nothing special about the iMac power cable, and if you've got Standby power (LED1) then the power cable is working. Logic board problems are pretty rare with iMacs, but it seems like that's what you've got =/
Adamant IT ok let’s say I will buy another logic board and it’s still no working ... what something else can be the problem ? I’m asking because I don’t want to start to buy all the spares one by one 😂 thank you reply back
Thank you, this video is great and just what I need to do for my iMac that won't start. Do you know where I can have these steps printed out? I'm going to attempt to do this myself (Apple doesn't work on old Macs), and I need to have step by step that I can refer to it as I go. Thanks.
nice sir
Hello there ! Thanks a bunch for the great video. Unfortunately the trick with the power button on the logic board did not work for me… Nothing happened. the LED 1 is always on. Can it be the logic board? Interesting is that when i plug in the cable and hold the power button, all the fan are coming on in high speed. but nothing else. Shall i try with another logic board? Thanks for your advice? BR
My imac is only showing first led and when i press the power button fans up but no chims or display. Is gpu or main board?
Tks
GREAT video!!! Does it also work for the 21,5 inch iMac?
More or less, things might be in slightly different places, but the concept is the same.
I thought I had a power button fault but looking at the diagnostic lights it may be another issue. When I plug the power cable in light 1 flickers once then nothing.
Any ideas ?
Amazing video thanks.
I plugged my IMac into the power and the 1st LED Green light came on but went off very quickly, are you able to advise what this could be?
Guessing logic board failure.
Might be the power supply if the standby LED isn't staying on. They don't fail very often, but it's certainly not unheard of.
@@Adamant_IT I’ve had issues with it powering on now for a few weeks, it is very much a pot luck thing.
I’ve tried now for 2 days and nothing, but when I was checking the LED lights it did power on and now it doesn’t again.
Hi, is the front Plastic or Glass, Sir?
is this an iMac from 2011? I've got the same problem, thinking about fixing it this way.
Yea all models from 2009 to 2012 are similar on the inside. There's lots of variations, so they don't share parts, but the basic concept is the same.
Adamant IT Thanks ALOT! Did the fix today, works like a charm again :-)
@@Adamant_IT I have the exact same model that you repaired, mid 2011 27.5 inch desktop mac and i'm thinking the power button is the problem.
@Adamant it
Hello there, I checked the power button as you said by shorting out the PWR Button cable and only 2 first lights (left to right) came on NOT all 4. Whatndoes that mean?
May I add that when I press the power button, it will start up just not my screen; hence, I wanted to see if the pwr button was good initially.
What’s that thing growing on your chin. I would see a doctor right away
i don't see on the motherboard where it says power or power button
Hello! I need help. Someone removed the power button socket on my Imac before I bought it and soldered another button on those pads that you shorted with the tweezers. But that idiot managed to rip off one of the pads. Is there somewhere else I can make the connection to turn on the imac?
my imac 27 inches 2012 does not start please give us some tips like this video can it should be fix or please give me some tips please
Do you recommend removing the ring?
What might be the problem if the LEDs don’t light?
Could be a dead PSU. If it's a 2011 or older model like in this video, I'd replace the computer. If it's a thin one (Late 2012 onwards) then you can find used PSUs on eBay.
Reparaciones mecánicas, en serio?
where i can find a button please ?
How can I short the power on an imac 21.5in A1311
Hi Adamant IT. Thank you for your well infomred video. I will apprecaite if you or anyone in your forum could tell me what is happening to my Imac mid 2011 27 inch not coming on. The stand-by LED light on the boards comes on and goes off immdiately when I insert the power cable. It is not stable for me to press the switch botton . So is the problem with my power board of the logic board. I need your urgent response for me to know what to buy as replacement
Sounds like a bad PSU (power board) to me. They do fail now and then.
@@Adamant_IT Hi, Thanks for the advice. I just change my power supply . unfortunately my imac did not come on. it was behaving the way it was before changing it. that is the first led standby light on the logic board showing green was not stable when you put the plug in. It goes off and on rather than it to be stable. immediatly I press the switch nothing happens and the led light will stop flicking. After a while when I remove the plug and repeat the process the led light will continue to flickers rather than being stable. What else could be responsible please. Just to note also,When I tested my power supply with the meter, the input voltage was 240 but there was no output voltage to signify that a supply is going on to the board
Hi, when i press the power button/short the switch (which is done at around 8.00 in the video), the 1st green LED turns off and doesn't illuminate again until i reconnect the power cable. Any ideas on where to go from here? Cheers
Most likely Logic board or PSU... I'd try replacing the PSU.
Hi, I replaced the PSU and now the 1st green LED blinks once when the power button is pressed. Nothing else happens. Does this sound like a logic board problem?
Do this imacs come with an integrated graphics or do all have that separate dedicated gpu with heatsink?
They all run discrete (dedicated) GPUs. Which is a shame, as the CPU almost certainly has Intel integrated graphics on it, but they're not enabled.
@@Adamant_ITthanks I have an iMac a1312 that someone brought me to repair but it doesnt have the gpu or heatsink. It was with another tech before wonder if they forgot to install it back. All it does is the fans turn on kinda loud and no startup chime.
Dude!!! Wtf is going on, my iMac screen is fixed from the inside. Mine doesn’t pop out? No one is explaining this on UA-cam. Can I open the back? What is going on?
2013 onward iMacs have glued-on screens. Very different animals to work on.
Thanks man. I’ve sussed it now. I didn’t realise the whole front and side comes off as a complete case 😂
imac a1115 no power
Do you have to take the entire logic board out?
To get to the power button, yes. The assembly is the bulk of the work on this job, while the power button itself is pretty simple.
@@Adamant_IT Dang lol
Sorry, too advanced and risky for me. This is not beginners stuff.
stupid design for such an important button!
The same leds wee already on before you shorted the power start contacts you silly git
In hindsight is there any reason why you could not have just crazy glued the circle to the power button or something along those lines?