Pic of the BIOS

I'm in Northern California. So the problem I'm having is the BIOS counts up to 24192 KB (correct) then indefinitely hangs at "WAIT...." with the cursor flashing below. Ctrl-Alt-Delete does nothing. There are three other anomalous symptoms that have coincided: 1) When testing memory, there is no …

Standard 486 BIOSes do not store passwords in flash, but in the CMOS RAM. If the board has a clear CMOS process, just use it. If not, and it has a dedicated battery, pull out the battery for a day. Worst case: No clear CMOS process, and the CMOS chip has an integrated battery and no external clear …

I think I may have somehow damaged a 486 BIOS as it now hangs after memory check and asks for a password for setup (there was no password previously set). I do have a .ROM file and would be happy to pay someone to flash a new chip for me. Please message me if are interested in doing this.

I assembled a 486 on the test bench today and the BIOS decided not to boot and now requires a password (!?!?). I don't know what happened. Static discharge maybe? Luckily, I have ROM file for it. Would anyone be willing to flash a new BIOS for me?

Thanks. Good to know it could work but with limitations. Next time I come across cheap a parallel receipt printer, I'll pick one up and see what it can do.

Wow. Very ... helpful...

One retro computing experience that most of us don't have anymore is printing, and for good reason. The printers are bulky, can be a pain to maintain, or may take special papers or inks. To recreate that experience in a "practical" way, I've often wondered if a point-of-sale (receipt) printer could …

Guessing we might have bought from the same ebay seller? How do you like it? Main issue I've run into is the board uses an "always dirty" L2 cache strategy. So L2 cache is slower than it would otherwise be. We probably did. I bought mine maybe 14 months ago. The slower cache doesn't bother me. With …

I have the exact same motherboard, but I never got mine to work. It's an Amptron DX-6900. Jumper settings are here: https://stason.org/TULARC/pc/motherboards/A/A … 0-VER-1-75.html

I know this is an old thread, but this will hopefully help someone out. The 4DMU-HL3S is also known as the 4MHL3S. Jumper settings are available here: https://stason.org/TULARC/pc/motherboards/E/EFA-CORPORATION-486-4MHL3S.html http://www.win3x.org/uh19/public/motherboard/manual/31754.pdf Mine came …