Recent content by jafir

There are still new AT power supplies as well. Like this Athena on Newegg: https://www.newegg.com/p/2VH-02DY-00001 But they might not be for long. The Athena website doesn’t seem to work anymore and Amazon shows the 300 watt but not the 400 watt, and it’s twice the price it was previously...

That just looks like they don’t know what they are selling.

Most likely a cable for a multi-sync monitor. Supposedly there are two most common flavors, NEC and Sony.

What kind of connector does your floppy controller have? Do any of your 3.5 drives have cables that would fit the controller? I don’t recall what the deskpro looks like inside, but I think my Compaq portable uses the more modern style IDC connector for the controller end of the cable, instead...

I also think I may have original disks for the 2.0 version, but I’ve not had a chance to archive them yet, so I don’t know if they are any good, and I’m not sure if there is a difference between user diags and advanced diags.

These are the latest versions: https://ftp.zx.net.nz/pub/archive/ftp.hp.com/pub/softpaq/sp0000-0500/sp0316.txt https://ftp.zx.net.nz/pub/archive/ftp.hp.com/pub/softpaq/sp0000-0500/sp0308.txt Change the file from txt to zip to download that archive of these images. The menus will be a little...

The advanced diagnostics shown on page 209 of this PDF has a low level format option: https://bitsavers.org/pdf/compaq/Compaq_Maintenance_and_Service_Guide_198411.pdf

Are you using some sort of soft from floppy or is this menu from the controller? Typically with XT clone hardware, you low level format the drive via a ROM based program on the controller that you kick off with debug. Usually something like g=c800:5

A manual is here: https://archive.org/details/hardcardmanual/page/n58/mode/1up?view=theater From that manual:

I do recall things like EDIT and QBASIC on DOS 5 and later defaulting to that color scheme. I didn't really notice it until the mid-90s though, because I had Hercules Graphics with an amber monochrome monitor when I bought my first legit copy of MS-DOS, version 6.22, and I didn't "upgrade" to a...

Perhaps a fan of doogie howser.

eBay. I use a list like this: https://minuszerodegrees.net/memory/4164.htm And then keep searching for various part numbers, that have the specs I want, until a find a price I like. I have almost always found new old stock parts for a good price. In some cases (for other applications, like...

The @ didn’t exist in batch files until DOS 3.x

There are other 16bit ISA boards that don’t have I/O ports on them, like the DFI AT-RAMBANK or the AST Rampage 286.

I don’t have this board, so I don’t have much current experience with it. I had one of these machines when I was a teenager, or at least very similar. I assume the TMS (Texas instruments) parts you’re talking about would work. For me finding RAM isn’t too hard, I just search for various...