This Retro PC Got The Better Of Me! Car Boot Retro PC 1 : Richard Nil - Will it beat you too?
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- Опубліковано 6 жов 2024
- So here is a nice retro that I found at the flea market. Well I thought it was nice but it certainly does not want to play nice...
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Thank you
Richard
I think its super cool that you're sharing your failures along with the success. It makes it easier for us who are learning to come to terms with when we fail.
I was a system builder in the late 90s and built hundreds of PIII computers. I have never seen a motherboard with both Slot 1 and Socket 370 on the same board. We always had to use "slotcket" adapters to put Socket 370 chips in Slot 1 motherboard. I think this motherboard might be very unique!
I find a general household cleaner like multi surface cleaner containing non ionic surfactants tends to clean away corrosion much better than iso does, with corrosion like that I would spray a small amount on the slot give it a scrub with the brush then use iso to remove the cleaner and let it dry out, I deal with a lot of liquid damaged laptops and that by far is the most successful method I've used for bringing them back from the dead
Very interesting motherboard. It’s a Azza DVBX2/PT-DVBX2. I didn’t know a combo slot 1 / socket 370 board existed. Would be fantastic if you got it working Richard.
Actually if you look back on previous car boot / flea market videos I've had several combo Slot1/PGA370 on previous videos, the strangest of which was a slot1/socket 370 *AT* motherboard last January!!!! Someone called that one a 'unicorn' and I kept it (it's working)
@@LearnElectronicsRepair I’m a new subscriber. Time to go back and watch the previous videos ;-)
Ultrasonic-ing that board is a waste of time. Test it with a PCI graphic card first and if it boots the way forward is to replace the AGP slot with a good slot taken off a junk board. Will take some time but not difficult for you. I've done similar jobs in the past. Use hot air to heat the pins while using your powered desoldering tool. Replace the AGP slot then test. Doing anything else is pointless. Ultrasonic is not magic. It's useful for minor corrosion and removing flux but anything that's been sitting around with water on it for years is already too far gone. Just replace the slot..... and if that doesn't fix it replace all the caps because they are at least 24 years old. You already know that's the correct way to approach this job ;-)
My money is on the graphics card slot causing the issue, however IIRC, the diagnostics card was causing a problem in one of your other videos. The system booted when you tried it in another slot. Might be worth a try. There could also be hidden corrosion in some of the other slots/under chips etc especially since both the ram and the gpu slots were affected. Looking forward to the ultrasonic clean.
You can try a PCI graphics card and see whether it wants to boot up with that. Also, try reseating the bios chip.
I remember back in the mid 90’s upgrading with an extra 16 megs of ram was a huge deal.
11:02 Look at the dust coming from the fan xD
Used to own a company to repair motherboards back in the 2000's for manufacturing feedback. First thing always. Clear CMOS really well, check jumper settings, check battery voltage without psu plugged in, Reseat ROM, check ALL slots with magnifier glass, clean PCB with compressed air if any dirt, reseat ram, cpu , cards with same isop. Try continuously pushing on BGA's when intermittent failures. Make sure test equipment is 100%. Check voltages with scope. Caps galore.
11:03 is that smoke or dust?
lol what do I think is in the first one ..... let me think ...... ummm crap !! 🤣
It could be dirty connectors. The board could have a deeper seated problem too. The way it was intermittent may suggest a bad solder joint somewhere? This board predates lead free solder. That's not to say leaded solder has never failed though.
Nice unique 2x procesor suportung pcb
Just as a comment, the P4 release was late 2000 and we didn't start seeing P4 machines here in Australia until the following year.. Great Channel, Cheers and happy New years
Yes but almost no one could afford one when first released. I'm on the west coast of au, I didn't get a P4 until 2002 and it was a used 2GHz CPU. Around 2004 I updated motherboard and CPU to P4 3GHz and I still have the computer here and using it occasionally with XP and an old eprom programmer.
@@g4z-kb7ct Same here actually, still using a P4 with DOS, XP and an ALL07 EPROM programmer. Runs some radio control software as well.. Cheers
@@chris_vk3cae heh! I used to have an ALL07. I got an ALL11 and now I have 10 different eprom programmers. I need them because I do archiving for emulation and have dumped over 50000 ROMs.
Is that smoke or just dust coming from fan 12.10?
That dust cloud made me duck away for a moment ;-)
slot 1 socket is so dodgy in my experience. 1 day it works next day its 0000 (no cpu) on post analyzer. i have same issue you are having but my board is like new no corrosion. socket 370 seems way more reliable.
I was thinking who’s part numbers begin with PT? I think I have one in this series?? Maybe not, who the F- are Azza? Give it a go in a sonic bath. It’s a P3 which have a good following, so it’s got to be worth something. Perhaps £150. I look forward to the next bash at this one.
I don't know who AZZA were/are but I have had several of their motherboards previously on the channel, mostly working 😉
We have all seen the error message about no keyboard - press f1 to continue!
Not sure though why you would get a 25 year old pc? Usually all the capacitors have gone home to roost and what actually would it be good for I wonder?
I would guess they're still used with older industrial equipment which use some combination of the specific onboard slots, that don't come with the latter P4 boards etc. Reminds me of a guy I saw on a youtube video still using an Amiga 2000 for some vital service. I suppose upgrading isn't always an option for a lot of folks.
In my travels, I had had a few motherboards that were just “wacky” .. they had some kind of iffy (faulty) chip (or something like that), that would boot/work sometimes .. fine .. then crash intermittently, and other times not. Untraceable/unduplicatable by human/human’s technology ability .. and just had to give up .. relegate them to the scrap heap.
it is an old m/c give it chance to start up you seem to expect it to start like a modern comp. Throwing it around and flexing the cards aint doing it much good either.
These old motherboards need something attached at least 1 device to the ide or the floppy port to actually boot. Something to do with sensing a load, in order to try to boot if I remember correctly.
nah it would still POST. but no boot.
Naah - what Richard is referring to is the CPU runs the bios and then stops with a failure code.
If the failure code is higher than basic ram missing or basic video missing, the CPU will continue excuting bios code looking for a OS boot device.
It will throw a code for missing boot device then.
But the fact it is running the bios code is what Richard refers to as "booting" as it immediately shows the CPU has a heartbeat.
@@CXensation True, I had this one doing everything from C1 (RAM) and the most repaetable failure, 2b (GPU), 00 and FF (not starting) and a few others thrown in for good measure. So it is definitely booting ( as in the CPU runs BIOS code) but very intermittent and unpredictable. Someone suggested faulty caps (presumably on Vcore) but the fault seems more vibration/physical movement/reseating components to me. Only one way to find out....
In the original PC spec a floppy was required. A lot of machines won't boot without a keyboard too. I had one that gave me the message no monitor attached. I read that on the monitor. I don't know what whoever made that error code was thinking. That was caused by a dodgy connector on the monitor that wasn't letting the system detect it.
@@1pcfred When you turn on a PC, the CPU will immediately start executing the code in the BIOS rom, no matter it is alone on the motherboard with no peripherals at all connected.
I think the misunderstanding here is that Richard used the word "booting" when the CPU executed code and recognized Ram and Videcard.
Anyhoo you look at it - the CPU is in fact "booting" once it starts executing the first line of code.
The CPU does not need anything else but the BIOS code to start working and do the selftest, the socalled POST (Power On Self Test).
The POST card is used to display - by hex code - the commencing of the POST.
The code is written so, that the CPU is halted if one of the basic tests is not satisfied. Then you can read off the code from the POSTcard and seek info on its meaning.
That's always the basic check to start troubleshooting.
You do NOT need an OS to figure out if the hardware is basically working.
Pentium 2 or 3
I'd say that the caps are in fact not fine
Typical problem in that era.
Could be caps but noting visible to suggest that, and generally motherboards of this vintage do not suffer from bad capacitors, being a bit too early for that scourge. Still you could be correct
@@LearnElectronicsRepair Agree that it might just be on that moment that caps problem started. If they look good, they prolly are.
@@LearnElectronicsRepair while capacitor plague was bad electrolytic caps just have a limited lifespan due to their nature. It's foil and plastic rolled up, impregnated with a fluid and stuffed into a vented can. They're just not going to last forever. Eventually they will dry out. As cap plague taught us that electrolyte is pretty important. When its gone so is the cap.