I thought I'd try to fix a friends motherboard which appears to have a row of 4 bad capacitors(bulge at the top, some white salt like crud there as well).
The symptoms: The computer is fine once it starts, though you have to try to start it several times before it will fire up properly. And once you start it it will restart fine, it just doesn't manage 'cold starts'. It is an epox 8rda which is known to have had batches of bad caps.
Sending it in to have it fixed is not an option because: no receipt; it's been a little over 2 years(I think) so warranty might have expired; it's painful waiting weeks to have it arrive back.
Allright here's what I want to know: Those big electrolytic capacitors are for power regulation, reducing ripple and so on, so if I get a slighty larger capacitance on the replacement caps(assuming I can't exactly match the rated capacitance on the existing ones) that won't be harmful?
Are they standard electrolytic caps rated for high temps(e.g. 105C)?
There are quite a lot of caps which seem unaffected, is it a good idea to not replace them?(I allways feel like I need more arms than vishnu when I solder something )
The symptoms: The computer is fine once it starts, though you have to try to start it several times before it will fire up properly. And once you start it it will restart fine, it just doesn't manage 'cold starts'. It is an epox 8rda which is known to have had batches of bad caps.
Sending it in to have it fixed is not an option because: no receipt; it's been a little over 2 years(I think) so warranty might have expired; it's painful waiting weeks to have it arrive back.
Allright here's what I want to know: Those big electrolytic capacitors are for power regulation, reducing ripple and so on, so if I get a slighty larger capacitance on the replacement caps(assuming I can't exactly match the rated capacitance on the existing ones) that won't be harmful?
Are they standard electrolytic caps rated for high temps(e.g. 105C)?
There are quite a lot of caps which seem unaffected, is it a good idea to not replace them?(I allways feel like I need more arms than vishnu when I solder something )