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Old 02-26-2011, 01:38 PM
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Default strange problem with shutting down

ok strange problem with a customers pc.
pc shuts down almost as soon as we get into windows vista.
pc will work and run fine in safe mode.

we have checked and swapped power supplies, ram, hard drives and graphics cards all to no avail.

only thing i havent done yet is reformat but i dont believe thats the case as it happens even when i unplug the hdd and boot from a ubuntu live cd.

Have also checked all the bios settings and all seems fine.

im starting to think it could be a bad motherboard?
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Old 02-26-2011, 01:42 PM
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I assume you have tried shutdown -a?

A shutdown sounds more software to me, a reset or even instant power off is more likely to be hardware.
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Old 02-26-2011, 01:44 PM
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yes sorry tried that i mean an actual switch off of the pc as if power was being cut.
Temperatures are all fine and low, have also applied more thermal compound and cleaned any dust from case.
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Old 02-26-2011, 01:49 PM
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If it works in safe-mode then I don't see how it could be h/w
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Old 02-26-2011, 01:53 PM
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Quote:
Originally Posted by MobileTechie View Post
If it works in safe-mode then I don't see how it could be h/w
Was just putting that
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Old 02-26-2011, 01:53 PM
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Quote:
Originally Posted by MobileTechie View Post
If it works in safe-mode then I don't see how it could be h/w
this is what i was thinking originally, but then when i disconnected everything and tried booting into ubuntu same problem. computer just switches off before its even loaded.
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Old 02-26-2011, 01:55 PM
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If I was going to try any hardware I would whip in a psu to test. It wouldn't explain why safe mode would work but would rule it out. Maybe you just got lucky with safe mode. Is it consistently doing it in each mode eg safe mode always ok, normal mode not, Ubuntu not?
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Old 02-26-2011, 01:57 PM
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changed psu already, no change
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Old 02-26-2011, 01:58 PM
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Sorry didn't see that.
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Old 02-26-2011, 01:58 PM
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Maybe working in safe mode was a one off? If not then why that happens would be interesting.

Do the logs give anything away? I.e. is the same event being logged before each shut down?
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