italie |
MAME owes italie many thank yous, hah
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Reged: 09/20/03
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Posts: 15245
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Loc: BoomTown
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Re: Stumped by rebooting Shuttle XPC
09/09/13 02:19 PM
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Open it up, check the caps on the motherboard near the processor. Then do the same to the power supply. Betting you will find some swelling.
*edit* just looked at the model, yeah, going to be power supply (caps/fan) and MB caps. Get out your soldering iron and you patience, cause those power supplies are a biatch to work on.
or spend the 60$ and get a new one...
http://www.cputopia.com/psu-replace-300-...CFaY-MgodFXEA-w
> I have a Shuttle XPC (SA76G2) with an Athlon II X2 250 that I built (for my mom) in > 2009. It worked great for several years, but it's suddenly started rebooting randomly > on her. > > It seems to happen when the CPU and/or GPU are stressed. It'll idle happily for > hours, but even just loading up a Flash game or video will cause it to abend in 5-10 > minutes. > > It's *not* a bluescreen. I've disabled auto-restart, and it still just reboots > without warning. Event Viewer shows nothing in the logs, other than a note that the > previous shutdown was abnormal. When this happens, startup always fails just after > POST with a keyboard error. Simply resetting the machine again will boot normally > every time. > > The first thing I did was replace a wireless keyboard with a basic, wired keyboard. > When that didn't change anything, I also tried a known good wired keyboard. Still no > change, so the keyboard error doesn't seem to be legit. The keyboards are all USB, > which rules out a bad port or anything like that. > > Windows 7 and drivers are all up to date as far as I can see. She's got up-to-date > virus protection, and the machine is generally very clean, so a virus seems unlikely. > I flashed the BIOS to one several revisions newer - no change. Running Memtest86 now, > but it's already made it through one pass without errors, so I suspect it's not going > to uncover anything. > > I'm kind of running out of tests to run, and I hate to start replacing parts at > semi-random. Where it seems to be a true hard reset, I'm guessing maybe the PSU or > something power-related in the motherboard? Anyone seen anything similar? I can't say > I've ever seen a true hard reset in a modern PC before, it's almost always an > auto-restart from a bluescreen.
Edited by italie (09/10/13 03:44 AM)
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