Recent content by blackepyon

Looking for info on this Extel ComWriter Jr. I've only found ONE piece of documentation for this teletype terminal, which is the installation manual. https://www.navy-radio.com/manuals/misc/extel-comwriter-jr-installation.pdf It can do half duplex or full duplex communication. There appears to...

Is that Host Protected Area something built into the standard, or is is only on the drives that have size limiter jumpers?

As it happens, the only DOM I've tried was one of those "errant Chinesium specimens." :LOL:

Thanks for shedding light on that. I have noted that Pentium and later machines have the IDE interface controlled through the southbridge rather than directly connected to the bus. That explains it. I really need to get myself a 286 to play with. I've got 386's and several 8088's in my...

Not if it has to pass through the IDE controller. I was thinking something more like this or similar (16-bit ISA, and with a boot ROM), then connect a SCSI drive of your choosing. It would replace the IDE controller altogether...

Error 40 I believe is a hard drive chain error. I'm pretty sure a SATA to IDE adapter won't work properly for this, it has to be an actual IDE drive or a CF card (CF cards are technically IDE devices, but not all are fully compatible). It might be that the adapter is trying to run the drive as...

I'm looking for Windows 3.x drivers for the Trident TVGA 8800 BR chipset. Specifically the BR chipset! None of the packs I've found from the 8800 C and CS chipsets seem to work. Without proper drivers, I'm limited to using only 16 colours within Windows (at least the Windows-included SVGA...

286 thru early 486 computers tended to have IDE controllers that were limited to 504MB, which is 1023/16/63 cylinders/heads/sectors, and those 512MB cards are slightly above that. Just because you can set higher CHS settings in the BIOS doesn't mean the controller will properly support it, and...

Just spit-balling an idea. The Tandy 1000 EX internal floppy header is hardwired to only accept DS0, and DS1 is routed to the external floppy edge connector. DS1, DS2, and DS3 are all floating on the internal header. Most "modern" 3.5" floppy drives are hardwired to DS1, but older drives usually...

With my video cards, I've been lucky enough to get away with finding the socketed equivalent of the chips already soldered to the board and not have to look for anything exotic. As mentioned already, they're 256Kx8 70ns fast-page DRAM. I found mine for my 1000 RSX on eBay back about 6 years ago...

I'm also looking for it. I'd like to see if it's possible to use the upper RAM card header as an interface to build an XT-CF card.

PCMCIA was a 8/16-bit expansion bus, but not directly compatible with ISA. It's got the data and address lines, but the control lines are different. See pinout here. It's possible to design a PCMCIA card, but at best it would all be fine-pitch surface mount, and there's no way to make this...

These are the CompactFlash cards and adapters I have. Each has been tested to work on my custom built variants of the Lo-Tech ISA-CF rev.2, and the Glitchworks XT-IDE rev.4, both with XUB 2.0.0β3 (rev. 601) ("custom built" to the "PLUS" form factor for use in my Tandy 1000HX, but otherwise...

After noting that there's no thread for listing devices used with the various XT-IDE Universal BIOS (XUB) based cards, I decided to make one. This thread is dedicated to listing the devices used with the 8-bit cards made to utilize XUB, such as Lo-Tech's ISA-CF rev.2, XT-CF-lite, and Glitch's...

The first picture looks like a cursor on an HSYNC signal that's gone way off kilter (to me anyways) You've already tried swapping the CPU and the 8284 from the 1000 into a known working system, and they're working, so those are out of the way. This all happened after you took everything apart...