I'd like some help with diagnosing a power supply. It's for a model ET1161 "e machine" circa 2008 +/- (at least that's the age I was told). The PC belongs to my brother and he brought it over and ask me to check it out because it keeps rebooting and/or blue-screening. In short, he said it was intermittent at first, then steadily got worse.
After I cleaned out all the dirt, I checked it with two different PSU testers (the type you just plug the PSU into). One is an older PowMax, and the newer one is basically the same just with more LED's. The PowMax and has a main RED light that lights up if it detects a an issue. The RED light came on on that one, and neither testers show a "-5v" reading.
BUT when I look at the label on the PSU (a Liteon model #PS-5251-7) it doesn't list "-5v" with the rest of the output volts.
So my question is this-- does the PC need or use the "-5v" or is it possible this PC didn't use it?
I'm going to get another PSU to test the machine, but I wanted an opinion on the -5v issue (both for now and if I run into it in the future).
Thanks for your assistance.
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