Let me guess: you need SIMM 72-pin FPM with parity , right? I tried non-parity, and the results were funny: BIOS memory test goes OK, Memtest86 and Memtest 86+ - both OK, pure DOS works OK, Windows 95 in safe mode OK, but in normal mode... instant "parity error" or similar message. Yes that’s …

Thanks! After many hours switching hardware and exploring what I can do with this computer, some learnings that perhaps will save someone else time down the road... Storage 1) Using a Transcend industrial CF card does clear up the “Failed to set block mode” POST error. I used a small 1GB card that …

I am trying to restore a Compaq Deskpro XL 590. So far with conventional hardware I have been successful getting it up and running using windows 98 SE. By conventional hardware, I mean an IDE hard drive and an IDE optical drive. I have been able to drop a working operating system on three different …

Hello, I have an old, beloved Deskpro XL 590 that I purchased new, used for years for games, school and work, then abandoned. I recently restored it and everything appears functional! However the battery appears gone, causing the EISA settings to reset with every reboot. It took forever to find the …