I will for sure put one of the write protection stickers on it. I have no clue how long it has been exposed to light. It was in a case when I got it, so if that is the original case, it hasn't been exposed to much light.

Crazy! I had no idea the ROMs with a window were erased with UV light. Learn something new everyday. "8742 Erasure Characteristics The erasure characteristics of the 8742 are such that erasure begins to occur when exposed to light with wavelengths shorter than approximately 4000 Angstroms () It …

Indeed a very nice early board! Having the expensive 8742 instead of a cheap 8042 makes me guess it might even be some prototype. BTW, I'd take a backup of the ROM of the 8742 controller, as the window is only partially covered and data loss might be imminent. So the ROM is in danger from the …

I know this is an old post, but if you still need info from the manual, let me know. I am still using that board in one of my gaming machines and have both manuals on hand (user and bios).

So if it is an AMD, is that a good thing, or bad? Also, if you look above it there is a socket with another socket plugged into it and 2 resistors. Is that were a math co-processor would go? If not, where does one plug one in? AMD was a 'second source' for Intel processors in the 286 era. They are …

I purchased an old AT clone and wanted to do a restore, but I cannot identify the maker of the motherboard and there is no documentation with the machine. On the front of the machine is a sticker that reads, "Standard 286" and that is about it. I am attaching a few pics in hopes someone might …

Years ago in my IBM PS/2 50Z I installed an ATI Ultra MCA. It ran okay for anything but VGA as it use the systemboard VGA, so nothing VGA was going to be accelerated. So I used it with Windows 3.1 and all was well. After pulling that same machine out of storage a few years ago, I decided, unwisely, …