Not for the faint of heart! Congrats on the (surprisingly) positive results!
Thanks. Thats where my good luck ended though.
The next board I tried was this PC Chips Intel 430VX chipset motherboard. I do not think the BIOS chip belongs to this board but it was there when I got it and any BIOS for Intel 430xx should at least be enough to get some beeps. The board seems totally dead, I tried two differnt pairs of FPM memory, the Pentium 75 I got with the board and also a known to be good Pentium 133. I rejumperd the FSB to 50MHz as the board came jumpered for overclocking the P75 to 100MHz but that diddnt improve the situation.
PC Chips Intel 430VX motherboard.
Then I tried the PC Chips 430FX motherboard that came without BIOS and RTC chips. I think this is the board the BIOS chip that came mounted on the 430VX board actually belongs to so I moved the BIOS chip and RTC chip to this board but it seems just as dead as the VX board.
PC Chips Intel 430FX motherboard.
There are no obvious defects on either PC Chips board except rust, dirt and dog hairs. I guess the BIOS chip could be dead, its not like these boards are worth spending too much effort on. At least not now perhaps some rainy day far into the future when a PC Chips 430FX motherboard with what looks like two real and two fake cache chips adding up to 256KB onboard cache with another 256KB cache added on a coast module is worth a fortune. The VX board seems to have no fake cache chips and two real ones like the FX board with 256KB more added on a coast module, all in all a less interesting board.
Or perhaps all onboard cache is fake but if that is the case they have wasted alot of effort on worthless traces 😜.
What did I get for my 20 Euros + shipping.
A LPX 486 board with dead onboard video.
A working 486SX-33 CPU with bent pins
A probably working 486 SX2-50 CPU with bent pins.
A probably working Pentium 75 CPU.
5 memory modules that probably work and 2 that probably dont.
2 AT PSUs filled with dirt, I will not test these until I have put them in the dish washer.
And the mystery board pictured below.
Member CelGen thought this mystery card with a socketed 80186 CPU was a multiport serial card, I think he was right as the Zilog chips seem to be "ZILOG - Z0803008VSC - Serial Communications Controller PLCC"
If wasnt for the shipping cost this would not have been such a bad deal but I do not like when some sellers sell untested junk they have found as "used" supposedly working items. I will not ask for a refund or give the seller bad rep but I will not buy anything else from this seller.
Main PC: Dual Xeon X5690@4.6ghz, Evga - SR-2, 48gb memory, Intel X25-M g2 SSD and a Nvidia GTX 980 ti.
Retro PC #3: K6-2 450@500mhz, PC-Chips m577, 256mb sdram, AWE64 and a Voodoo Banshee.