I have found the problem - at least physical faults that will be a problem. Between the SIMM and CPU socket, right in the middle of SIMM3 and SIMM4, 3 traces are blown, as well as an SMD, and another SMD seems to have burnt away in the lower left corner of the CPU socket. So I need to get the board …

Carefully check all the contacts in the SIMM slots, i've seen boards where some of them lost their "springiness" or were bent. These can usually be corrected with a small flat screwdriver or the tip of a cutter blade. Also inspect the pcb tracks leaving from the slots, check for scratches, cuts, …

I've flashed to the newest BIOS (from Phil's website), removed all cache chips, removed display adapter, AND I've tried another CPU, that I know is working, and I still get C5 C1 on the PC analyzer. Anything else to check?

All the memory you have might be EDO memory (meant for Pentium 1 motherboards) - check what is printed on the RAM chips and perform a Google search to determine if you have FPM or EDO RAM. I didn't throw away memory sticks. As I said, this HAS been booting up. Upon inspection, only a few of my …

Without the regulator you can only use 5v cpu's. The dx4 is a 3,3v and could probably go defective at 5v! Are you using normal Fastpage ram sticks? Those are weird looking ones you have there, are those server ram perhaps? Any beeps from a speaker? Yes, I am going with the assumption now that my …

Based on the error codes, I would say check your memory. These earlier motherboards only supported Fast Page Mode (FPM) RAM - you can do a search on Google, based on the part numbers that are printed in the memory module, to determine the type of memory. . Just make sure the memory is seated …

I'm having a lot of problems with my ASUS VL/I-486SV2G. I've seen a few variations of this motherboard. Mine is a rev 1.8 non-X4 without power regulator and VLB slots. https://preview.ibb.co/epmz4n/MG_8372.jpg First of all, it HAS ben able to boot into BIOS previously (never had it fully installed …

the drive... which has a 25+ year old installation of DOS on it that I'd like to keep). If you'd like to keep the data, you should back it up. Hard drives WILL fail! Also, it's really easy to restore a DOS system to another drive. Just copy all files. Use fdisk to partition and make the partition …

dreamblaster wrote: Hi guys, […] Show full quote Hi guys, right now I am finalizing the OPL2 solder kit, let me know if this is interesting. I may do a vogons only very limited release, soon. I also designed an OPL3 board, this will be factory assembled (it is mostly SMD), will be much later. I …