VOGONS


First post, by Nemo1985

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I've recently received 3 mb 775, all of them are non working, all of them turns on but the cpu doesn't get warm, all of them when turned on with a debug card give the 0000 code.
The socket pins seem fine fine, one of the asrock has bulging caps, the other seems in good shape.
I've tried to swap the bios chip, since I have the Tll 866, but I doubt that 3 of 3 have a corrupted bios, I also tried to swap some cpus, put a brand new battery.
Any suggestion before I scavenge them?

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Asus P5GPL-X SE

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Reply 1 of 5, by Nemo1985

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AsRock Conroe 1333-d667

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Asrock 945GMC-S (bulged caps)

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Reply 3 of 5, by Imperious

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Asus P5GPL-X SE only supports P4 and Celeron, no C2D support.

Atari 2600, TI994a, Vic20, c64, ZX Spectrum 128, Amstrad CPC464, Atari 65XE, Commodore Plus/4, Amiga 500
PC's from XT 8088, 486, Pentium MMX, K6, Athlon, P3, P4, 775, to current Ryzen 5600x.

Reply 4 of 5, by Nemo1985

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Imperious wrote on 2020-11-28, 08:32:

Asus P5GPL-X SE only supports P4 and Celeron, no C2D support.

I've tried a Pentium D 530 on the asus board.

Miphee wrote on 2020-11-28, 06:52:

Failed power phase components are likely the cause. They need to be checked one by one starting with the CPU VRM area.

Any advice\guide about how to proceed?

I checked the asus board compared to an high resolution picture and I noticed some differences, also mine is labelled as p5gpl-x but the layout is almost like the p5gpl-x SE, I tried to measure the voltage near the cpu pwm (they all showed 0) and then it stopped turning on, I suppose there is a short now since it turns on for less than a second and then off.

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AsRock Conroe 1333-d667: it somewhat came back to life, now it gives error e004 on the debug card and gives me 3 short beeps, I also noticed now that it has 2 bulging caps (not very noticeable), 1 near the ram slots and the other near the chipset.

Asrock 945GMC-S, no further tests since most of the caps are bulging.

Reply 5 of 5, by Nemo1985

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Here is another update (and looking for help as always).
Asus P5GPL-X SE has been salvaged since it was in short and I haven't the knowledge to understand where it was.

AsRock Conroe 1333-d667 has been recapped, all the bulging caps have been taken off and changed with others with the same specs but I still have the e004 error and 3 short beeps (Base 64 K RAM failure.). What can I do? I tried it with pci video card, with and without ram, I always get E004 on the debug card, if I use a pci express video card it gives another code and then switch to E004, I tried the integrated vga but nothing changed, the only thing I can think is to try and change the 2 caps next to the ram slots, even if they aren't bulging, any advice is welcome.

Asrock 945GMC-S all caps excluding the 3 between the pci slots have been changed, mb gives me the 0000 code when booted, I'm starting to scrap it since I don't think that 3 bulging caps near the pci slots should be a issue since noone of the slot is populated., am I wrong?

Thanks