[PS1002]

maybe a few months behind on this topic and new to this area, but i have a pretty weird issue my self with a PSU...
I got a 830CF motherboard and a SiS 620 pretty old motherboard, and the voltage on the 830CF-the 5 volts and the
-12volts seem to be outa range, for instance, the -12 is at -13, and the 5 volts is running 4.40 on both VSB and +5,
im not extremely knowledgable with power supply's but when i throw the PSU on the SiS 620, the voltage is stable
and runs just fine, ive switched components around everywhere on the 830cf to see if it would fix the problem but
doesnt.. i have a little jpeg picture if anyone would like to see what im talking about.. http://www.geocities...830CFbug001.jpg

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Well first off you should have started your own topic and put a link to this one if you wanted to reference it. I've heard anywhere from 5 to 10 % as the tolerance on the voltages is what would be normal. With that in mind the 12v would be in tolerance but the 5 volt would not be. In the case of switching the psu to a different machine with different results it may just be a case of the psu not supplying enough power for the newer board.... I would replace the psu on the 830f and either consider that supply no good or at most use it on the sis board.... I've heard sis boards run cooler so it's quite likely that they also draw less power...

Thanks for the info, ill try a different psu on it.

[PS1002]

Well first off you should have started your own topic and put a link to this one if you wanted to reference it. I've heard anywhere from 5 to 10 % as the tolerance on the voltages is what would be normal. With that in mind the 12v would be in tolerance but the 5 volt would not be. In the case of switching the psu to a different machine with different results it may just be a case of the psu not supplying enough power for the newer board.... I would replace the psu on the 830f and either consider that supply no good or at most use it on the sis board.... I've heard sis boards run cooler so it's quite likely that they also draw less power...

Thanks for the info, ill try a different psu on it.

[PS1002]

My friend brought over a 400watt psu and the bios is still reading the same voltage. Could capacitors cause the current within the board to not get a correct flow of power?

[AnthonyJ]

have you tried a bios update?