PcBytes wrote on 2025-05-20, 13:10:I got the board lot a few days ago. […]
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I got the board lot a few days ago.
Results:
-BX2000+ - not working, seems to action the BIOS somewhat (I can hear the speaker tick twice, something that happens on standard BX2000 as well) but POST card keeps showing dashes. If anyone has an idea what could I do to get it to POST, I'm all ears.
-BX2000 - working, needs RAM clips and a cleaning
-Epox EP-MVP3G5 - won't work with AGP video cards for whatever reason, although I found some strange black gunk in the AGP port so that may have to do with it, as well as a pin that's looking a bit suspect. Could be caps as well.
-PCChips M577 - dead unfortunately, although it's the first dead 577 that at least reacts to ATX switch on.
-GA-7IXE - one dead, one somewhat works but I have to power it by shorting green and black. No idea where's the fault on this one.
-MSI 6167 IR1 - one will stop at C1 and beep regardless whether there's RAM or not, the other will POST but same AGP issue as Epox. There's a few broken off SMDs in the AGP direction between the slot and the 751 chipset
-GA-7IX - no post, dashes only
-ABIT KA7-100 - same as 7IX but other than the toasty MOSFETs I suspect I have to do some resoldering on the clockgen pins... there's cap gunk almost everywhere.
-ASUS P2B-DS - POSTs with single CPU, is horribly unstable with 2x Coppermine SL3XK. (as in, will get as far as doing the POST beep then re-cycles through codes with 2x CPU. Single CPU runs fine.)
-ASUS P3B-F - one will sit at dashes only, the other gets stuck at C0--. I suspect the well-known POWERGOOD issue on the VRM although I have a hard time sourcing the schematics @rasz_pl found on Vinafix (the Onedrive link there doesn't work for me) so if anyone has the P3B-F schematics, let me know.
-GA-7VX - pretty dire enough. No POST, same issues as 7IX - 4 dashes on POST card
-Tekram P5M3-A+ - same issue as 7VX
- Intel VS440FX - untested, one is a Dell OEM and the other is retail. I don't have CPUs nor the DELL specific PSU for the OEM board. High chances the DELL one might be working though, since its only issue was a missing cap and a broken regulator I could replace from the retail board. The retail one has bent pins on the chipsets and a few other issues I could see.
- Intel L440GX - untested and it'll likely stay that way... I legitimately don't have any PSU that could power that behemoth.
- neither of the X1950s work so far
- tested only one of the 815EPT Pro-R ver5. The other was pretty dented enough that I didn't bother. A shame I cannot replace just the plastics on its socket - MOLEX branded sockets are literally impossible to remove without destroying the mobo IMO, so I'll have to live dangerously by using it with a 462 cooler hanging on one side.
Hello and congratulations on your batch of cards, all more or less very interesting, in my page here on Vogons, I worked on some similar cards or with the same symptoms.
Starting from the first card, the BX2000+ which should be a Slot1 (?!), on a fairly similar card, I managed to make it work, only after cleaning the contacts of Slot1, and spraying a deoxidant, I also don't know the reason but it's more likely that a Celeron Slot1 (FSB 66) will work than a PII or PIII (FSB 100), at least for now that's what I can do on a Soyo SY-6BA+IV, I don't know if it depends on some contact, which in the Celeron remains unused, however a Celeron should be a fairly reliable CPU, and it would rule out that the problem is due to this, even if sometimes you have to enter it several times before it works.
MSI6167 with beep and C1 code, maybe it could be a RAM problem, but if you use modules working in similar cards, it could be something else, I would check if there is the correct voltage on the RAM slots, and if the Mosfet (or regulator?) That generates that current functions, I think these are the things to do initially.
Asus P3B-F with code C0 —, I have the same error code on a S.7 Chaintech 5TDM2, I tried unsuccessfully to rewrite the BIOS Chip, and I think the problem is in the automatic recognition of the CPU, so I don't remember if in the P3B-F, there are manual settings, I advise you to use those.
Unfortunately I don't have any diagram, but some users have them, if I remember correctly, on the YouTube channel Necroware, there are six ASUS Slot1 motherboards, which he repaired in six different videos, maybe if it can help you, there could be some useful suggestions.
AMD 286-16 287-10 4MB HD 45MB VGA 256KB
AMD 386DX-40 Intel 387 8MB HD 81MB VGA 256KB
Cyrix 486DLC-40 IIT387-40 8MB VGA 512KB
AMD 5X86-133 16MB VGA VLB CL5428 2MB and many others
AMD K62+ 550 SOYO 5EMA+ and many others
AST Pentium Pro 200 MHz L2 256KB