First post, by LunarG
Okay, so I'm doing a bit of diagnostics on my Iston Computer Corp. S486G motherboard. I'm pretty sure this is some sort of OEM type board, but who knows. Hard to find any info about it other than the basic jumper info etc.
I've tried a couple of different cache configurations, 256KB and 512KB, different chips, different tag rams. The board reports the correct amount of cache during boot, but according to Dr. Hard, Speedsys, Cachechk etc, there's no L2 cache installed. I've tried setting it to enabled, disabled and both write-back and write-thru in BIOS, and it doesn't matter. It doesn't want to work. I know the cache chips are good from having tested them in other boards.
I've got a PC Analyzer board, and at one point during POST, it displays the code "05", which isn't listed in the manual for the PC Analyzer board, but according to a website of AMI Winbios post codes, it's supposed to mean "Disable cache". But why on earth would it disable cache when it's enabled in BIOS?
I'm pretty much stuck. Anyone got any good suggestions?
WinXP : PIII 1.4GHz, 512MB RAM, 73GB SCSI HDD, Matrox Parhelia, SB Audigy 2.
Win98se : K6-3+ 500MHz, 256MB RAM, 80GB HDD, Matrox Millennium G400 MAX, Voodoo 2, SW1000XG.
DOS6.22 : Intel DX4, 64MB RAM, 1.6GB HDD, Diamond Stealth64 DRAM, GUS 1MB, SB16.