Hi Declan, My opinion: > Picking over the entrails of the psu, I find a capacitor case (100uF 10V) > empty and loose. It apparently lived in the output area of the power supply > on the low volts side. The fuse is vaporised. It looks grim - like some HV > got accross. Capacitors don't normally do that!
There are 2 ways the high voltage can reach the low voltage side: through the transformer, which is not likely, and through the feedback regulator, which would not cause the harm you mentioned. So probably the capacitor either reacts as it did below the rated voltage, or the regulation was disordered and the (low) voltage was somewhat too high. > > What's the best route now? The psu is toast - I'm wondering about the m/b > and hesitant to slap another psu on it, as I have enough toast. But it might > be OK, or some of it might. In order to know whether the mb is damaged you had to connect a rated PSU. And if its gone, what is the chance you can locate the damaged chip(s) and replace them? And how many hours it will cost you? I would try a new PSU and accept the risk of a damaged mb. Being forced to replace it is sour, I know, but I don't see much possibilities to circumvent it if it is out of order because of wrong voltage levels. Even the CPU and the memory can be damaged, so you will have a lot work to test it all. > > I have a lab supply here (2 x 30V 2.5A @ 1x5V 2.5A or 1-15V 1A), a Signature > analyser even, but I'd like to hear opinions. How do you trick an atx board > into life anyhow? Here in the Netherlands we have recycle shops that offer a lot of PSU's from dismantled PC's. They cost �1 or �2. Perhaps you have a comparable situation at yours? > Regards, Harry -- Author: H.C. Croon INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
