Long post: Been testing twelve motherboards (two within complete systems) received from a befriended e-waste merchant. He asked me to clean, test, and sell them if working; I could get either a cut if sold or a discount if there's something I want to keep personally.
DFI P2XBL Rev.D + P2-350 + 64M SDRAM + APAC ST300A (S3 Trio3D) + Formosa MPB-000074 (ES1868F) + LM-P560TX + TEAC CD-540E. Working.



Epox KP6-BS 0.2 + two P3-450. Non-working.

Gigabyte GA-6BXC 1.7 + P3-450. Non-working.

Gigabyte GA-6BXD 1.6 + two P3-700 on slockets + 4x 256MB SDRAM. Non-working, but 3 out of 4 DIMM were fine, while the other reported only 128MB. 🙄

Gigabyte GA-6VTX 1.2 + P3-677. Working.

GA-6VX7-4X-AP 5.0 + P3-1000EB + 2x 128MB SDRAM + Gigabyte GA-622-32C (TNT2 M64) + RTL8139C NIC. Working.
This MB is labeled as "GA-6VX7-4X 5.0" on the PCB, yet it simply didn't match the layout of GA-6VX7-4X 1.2 or 3.2, not to mention that "rev. 5.0" was nowhere to be found. Turned out that Gigabyte "forgot" the "-AP" suffix on PCB AND the manual!

A mysterious "Wei Chih Electronics VT5226F" that I could not find any info online. Non-working.



I've combed through all Slot 1 MB using VT82C596B Southbridge but can't find any layout match.
Motherboards to be tested:
GA-945GCMX-S2 6.6

ECS P5VX-Be 3.0

Asus PI-P55T2P4 3.10 + K6-2-400 (which is not supposed to be fully supported by this MB unless downclocking it to 66 x 3.5 = 233 MHz)

GA-5AA 2.2 (replaced three bulging capacitors)

And finally, the cream of the crop: Asus P5A 1.06 + K6-2-300, with original box (but without accessories)

All motherboards together (without cased systems), plus two AT PSU:
