Recent content by Bones558

I have three boards from 1999, all exactly the same. One still boots/posts but the other two have issues. While I can’t find schematics presently, I hope the “working” board can provide enough info to compare and determine what is wrong. I am trying to find someone who can do such work, either...

I have three Compaq Prolinea motherboards. I was wondering if someone could tell me what is different about them. They obviously have different components. Now, one is a 4/33s and the other two are 4/25s, so I know the CPUs are different, but I'm interested in the other differences between the...

Thank you both for the help.

I don't want to be a pain, but any luck finding it in your storage? I'm too new on this forum to send DMs, so replying is the only contact method I currently have. Thanks!

Thanks, much appreciated. If you have a multi-meter capable of taking readings for the various components, and are willing to, that would be much appreciated as well. Having measurement data from the components in the damaged area pictured can help me identify the values to use for replacements.

Not sure. It was stored in a dry, indoor settings, but one spot developed corrosion. Nothing was near it that could cause it. I had removed the battery long ago before storage. The case is all good as well, no signs of corrosion or rust. Best hypothesis...a bug crawled in and died. Its...

Thanks! Sounds like something I may be interested in. Please do DM me and we can talk. I'd like to see pictures first if at all possible. I too am also traveling for the holiday this weekend, so I won't be back till mid next week.

Much appreciated. Hopefully the 4/66 uses the same motherboard as the 4/25s or 4/33s.

I've found that MUSIC chip is the onboard VGA namely a DAC. Everything in that area is related to the onboard graphics.

Hello, I'm looking for a Biostar M7MKA Motherboard. This is a Slot A Athlon based board. If anyone has one they are willing to part with, please let me know. Thanks!

Would someone happen to have motherboard schematics documentation for the Compaq Prolinea 4/25s 4/33s Motherboard? I've searched online, but I've been unable to find any. Many thanks in advance!

I have one of these Compaqs that I’m trying to restore. Mine has some corrosion damage on a few components. Would anyone happen to have one of these systems as well? If so, would you be willing to take high resolution, close up pictures of the motherboard? Taking readings with a multi-meter on...

I acquired two vintage 5.25 floppy drives. I want to hook them to "modern" motherboards I have. Both motherboards have a single-drive floppy controller that supports all types of 5.25 & 3.5 floppy drives. I need assistance in getting the jumpers set correctly to work with these motherboards...