Elia1995 wrote:The 6x86 in the photo wasn't already in the motherboard, I put it in since it was Socket 7.
Elia1995 wrote:The problem is that I can't find the model of neither of those 2 Socket 7 AT boards written anywhere, not even behind them, there are no stickers and I can't find neither the brand nor the model.
Tetrium wrote:Elia1995 wrote:The problem is that I can't find the model of neither of those 2 Socket 7 AT boards written anywhere, not even behind them, there are no stickers and I can't find neither the brand nor the model.
The board with the Cyrix in it has REV 1.0 in a corner. Often model numbers on boards such as that one are hidden a bit (sometimes they can be interwoven into a larger string). If you want, you could upload pics of the PCB (also the back with everything being able to read). The model number can also be on a sticker on the bottom ISA (or PCI) slot.
There's got to be something on there, especially if you got 2 boards, chances are good you might have overlooked something for us to find
Power Supply Unit
Power supply unit for this IBM is quite non-standard. The pinout is exactly like AT, but the unit has additional 3-pin connector. This connector is used as a power switch, making the power supply unit run when pins are shorted.
Tetrium wrote:th99 has this board, looks a lot like your unknown board.
http://www.uncreativelabs.de/th99/m/A-B/34330.htm
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ADVANCED INTEGRATION RESEARCH, INC. 54TVP-III
Cyrix200+ wrote:Tetrium wrote:th99 has this board, looks a lot like your unknown board.
http://www.uncreativelabs.de/th99/m/A-B/34330.htm
edit:
<snip>
ADVANCED INTEGRATION RESEARCH, INC. 54TVP-III
Nice find! So now we found them both! If we figure out a way to active the PSU he can start testing! I think shorting pin 2 & 3 should do the trick, but I need someone more knowledgeable to verify that
kixs wrote:Get yourself a normal AT PSU with power switch - if you want to play with pre-ATX stuff. Otherwise P1 requires 72-pin memory to be installed in pairs of the same capacity. On board #1 there is only one SIMM, so it won't POST. On the other one it seems they SIMMs are mixed - it might work.
To test the boards use any Pentium 90/100/120. They usually work with any settings - unless it was configured for Pentium-MMX, then it won't boot. You'll have to configure the board correctly.
Elia1995 wrote:What about the Pentium not having an heatsink ? Would it instantly fry as well or Pentiums can work like the 486 processors without anything on them ?
I do have coolers anyway, so it won't be a problem, just want to make sure if that Pentium 120 would instantly fry like a barbecue.
While on the Cyrix 6x86 it's written on the CPU itself that it requires an heatsink, so I would've put one on it anyway, but on the Pentium there are no warnings.
Elia1995 wrote:The appliance is the same as post-ceramic CPUs, right ?
Small droplet of thermal paste in the middle and then smash the HSF onto it ?
Elia1995 wrote:The appliance is the same as post-ceramic CPUs, right ?
Small droplet of thermal paste in the middle and then smash the HSF onto it ?
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