Recent content by uriahsky

I am trying to bypass some hardware dongle protection on some electronic testing equipment made in 1990. The manufacture is long gone and I haven't been able to find any support for this item. The dongle seems to be dead. I want to disassemble and debug some of the programs but I am having...

I still haven't made much progress on adding a larger hard drive to my 286. I am planning on using the XTIDE BIOS and using a network card. I came across this ISA card over at Circuit Specialists and was wondering if this would be an easier route to host the XTIDE BIOS. It is ISA and sells...

First off, I want to thank everyone, especially Mr Hargle for the very helpful information. I have been trying to get a larger IDE hard drive working in my 286 and have been running into problem after problem. Overlay didn't work and I don't think will work because I would like to swap drives...

I am not sure about this but can I put a larger hard drive like a 2.1GB into a 80286 and have it work but only be able to access 504MB of space using DOS 6.2? Isn't the XTIDE BIOS, overlays, etc used to access more than the 504MB limit? If I can do this do I enter the 2.1GB drives actual CHS...

I am not sure what exactly I am looking for but I want to use a larger IDE HD on my 80286. I think I need one that I can put the XTIDE BIOS chip into it. Anyone have something that will work. If you could load it with the XTIDE that would help.] Thanks Russ

Forgive me if my post is a bit premature. I am reading about it but I am always in such a rush to get things working that I get a bit bogged down and could use some clarification. I have a 286 and I replaced the original MFM hard drive with a IDE Controller and am now running into the 504MB...

I have wanted a tester like this for years. I have tons of test gear but this is one thing I never could afford. It is a bench top tester that does In-circuit Functional Testing of IC's. It was made twenty years ago and this method fell out of favor for numerous reasons. There are still a few...

Relax, I am not doing anything evil. I own the hardware and I own the software dongle which does not work anymore. I even found one of the original programmers who recompiled some of the programs to run without the dongle but there were a few that he didn't have the source code for. The...

This is on my ST251-1 that I thought was OK, but it seems to be getting worse and worse. I know it is probably on the way out, but could it have anything to do with the way it is setup in the Bios? I am unsure of a few of the settings. Cylinders:820, SEC:17 HEADS:6 those I think are correct...

I managed to get my ST251-1 to spin up by replacing those two caps near the power connector. But, the problem I get now is that it fails in the CMOS. I get a hard drive failure. Once the computer comes up it says setup error. I go into that and the hard drive area is blank. I change that to...

I have a Gateway 2000 P1-75 it uses a AT power supply the two split six pin plugs. There is another six pin plug of the same type right by a PCI slot. I did some research and it seems there are two of these extra connectors. One has ground and 3.3v on the pins and one has ground, 12v and 5v...

I have a pcb tester built around a 286 with a ST251-1 in it. The ST wont spin up in the computer but it did spin up with another PS that i have. It might be the PS but when i measured the resistance between the 12V and gnd i only got about 30 ohms which seems kind of low. Does any know, or can...

I just acquired a old piece of test equipment from the 1990's. It is called a Protech PL5000 and it was made to test circuit boards and components in-circuit. It has sat on a shelf for the past twenty years. It runs on a 286 and has a ST251-1 in it. I would like to update the drive to...