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Click to See Complete Forum and Search --> : Identifying a Mobo and malfunction

Baxdaddy
10-17-2001, 11:25 PM
First off this board doesn't give a bios POST screen> :( The settings for the CPU are screened on the board. I have installed KNOWN good RAM, video card and CPU. Nothing else hooked up besides power. Any ideas you guru's and guruettes? The only marks for identification are " V5.6 " intel 439tx chipset with um8670f and VIA II chips on board. Coin battery, 4 simms 2 dimms AT form factor
Toolbox
10-18-2001, 03:14 AM
Wow! That's a really old board. When the computer is booting up try and press delete or F1... that should enter the BIOS.
Baxdaddy
10-18-2001, 09:46 AM
Thanks for responding Toolbox. Will that somehow get video on the monitor? I wanted to try and hot swap but 1) i need to know the mobo maker to get the right BIOS and 2) have to find a board with that chipset. I have an AMI BIOS chip but it is not 437TX it is a 437VX...will that work for hot swap provided I get the right BIOS for this board? (if I ever find out who made the board!!!) Thanks again
Peter M
10-18-2001, 05:22 PM
Hop over to the PC-Chips Lottery and see if that's an M550, or an M572 if it has sound onboard.

http://www.stud.fernuni-hagen.de/q3998142/pcchips/

regards, Peter
Baxdaddy
10-19-2001, 12:52 AM
Peter you are the MAN. It is in fact the M550!!!! now if I can just get the thing running!!!! I think the memory voltage setting may be wrong. Isn't it 5 volts for MOST 72 pin SIMMS?
Peter M
10-19-2001, 04:16 AM
That supply voltage pair of jumpers is for the DIMM slots only. The board feeds the SIMM slots with 5V no matter what.

The board has a 64-MByte-per-DIMM-side limit to SDRAM usage, and like most other Pentium board needs SIMMs in identical pairs.

Other than that, the most frequently made mistake with PC-Chips boards is not to move the "CMOS Clear" jumper back to "Normal" after system assembly.

regards, Peter