Re: 2005 tyan motherboard capacitors

The resistance on the 3.3 and 12 atx pins are 0.1 ohms and when i connect it to the dc power supply it says its shorted also so pretty sure it is shorted. I have tried all of what you said multiple times and just cant figure it out. I just decided to get an asus motherboard of similar specs on ebay for $50 and forget about this tyan board. This system is obsolete anyways and just wanted it working for sentimental values since it has a custom water cooling system and case that looks neat when it is on. I can mail this tyan board to you if you...

Re: 2005 tyan motherboard capacitors

Tried hooking up a dc power supply and using a flir thermal camera and nothing was getting hot. Connected it to a atx power supply and pressing on a bunch of times and one of the voltage regulators near the pci slots got slightly warm on the flir but it doesn't seem shorted or burnt out or anything?

Re: 2005 tyan motherboard capacitors

OK I see what you mean. I don't see any of these, but I tested the atx pin 24 ground with the positive leads on all the caps and a few of them are shorted, is this some kind of multilayer pcb via short? Tried removing one of the caps and wicking up all the solder I could but it is still shorted, not sure how this can even be fixed?

Re: 2005 tyan motherboard capacitors


Do you mean shorting with the case? I am using the board outside of the case on a table so that shouldn't be the issue....

Re: 2005 tyan motherboard capacitors

OK I have went through each capacitor replaced on the motherboard and they all appear to be good, no shorts. However, I did notice that pins 11(+12V) and 12(+3.3V) short to pin 24(Ground) on the ATX power connector so I am not sure how that has happened. Here are some photos....

Re: 2005 tyan motherboard capacitors

Yes I have tried another power supply and there is no difference. I do not see any feed thru vias on the old caps.

System (dual cpu Tyan K8WE) would turn on for a few seconds and then turn off. Looked at capacitors and a couple were bulged at the top so replaced them with cheap ebay caps. This worked and it ran fine, so I should have stopped there. I figured that the rest of the caps were going to need replaced eventually so I order polymer caps that matched the originals, about 50 in total of various ratings with Nichicon RME caps. Replaced them all and now the board will turn on for a few seconds and then shut off like before. I read that electrolytics can't always be replaced with polymers so I order some...

Re: New Members - please post your introductions here

Hello everyone