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is my PSU dying?

post #1 of 4
Thread Starter 
Hey guys,

I got a problem with my PC. This started a month or so ago.

Went to press on the on button my PC and nothing happened, around 6 second later it came on. Next time pressed the on button and nothing, pressed it again and again and only then my PC turned on. But then for few days it went to normal, press on pc turns on.

Not too long ago when I pressed the on button PC just wouldn't start so I went at the back to check the mains cable, turned the PSU off with the switch and back on and my PC turned on without pressing the PC power button.

To check for faults with case i swapped the reset and power buttons on my case but nothing.


So could this be the PSU's fault? as usually but not always turning it off and on again starts my pc.

Thanks guys
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My New PC
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CPUMotherboardGraphicsRAM
i5 2500K @ 4.0Ghz Gigabyte P67A-UD4-B3 GIGABYTE GTX 680 WindForce 3X OC Kingston HyperX Fury Black 16GB 
Hard DriveCoolingOSMonitor
Samsung S840 Prolimatech Megahalems rev. B Windows 8.1 Ultimate 64 LG E2360 LED 
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LG 3D 2363D Corsair K70 (cherry my red) Corsair AX850W PRO GOLD NZXT Phantom [custom] 
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post #2 of 4
If you want to check if your psu can turn on and stay on by itself, unplug all its cables and with a paper clip (unroll it) short circuit the pins of the green cable and a black one under the 20/24 pin connector (the cable for the mother board).

I don't think it's the buttons of your case as it turned on with some delay, lots of time ago I had a similar problem: at pressing the button the system would have turned on and then immediately off, after a few second it would have turned on by itself. I haven't changed any hardware since then but it's not doing it anymore, I guess somehow it got fixed by loading bios defaults.
post #3 of 4
Thread Starter 
actually i had too, Turn PC on and then it turned off itself right after and then back on again.

So you think it could be just bios?
My New PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K @ 4.0Ghz Gigabyte P67A-UD4-B3 GIGABYTE GTX 680 WindForce 3X OC Kingston HyperX Fury Black 16GB 
Hard DriveCoolingOSMonitor
Samsung S840 Prolimatech Megahalems rev. B Windows 8.1 Ultimate 64 LG E2360 LED 
MonitorKeyboardPowerCase
LG 3D 2363D Corsair K70 (cherry my red) Corsair AX850W PRO GOLD NZXT Phantom [custom] 
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My New PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K @ 4.0Ghz Gigabyte P67A-UD4-B3 GIGABYTE GTX 680 WindForce 3X OC Kingston HyperX Fury Black 16GB 
Hard DriveCoolingOSMonitor
Samsung S840 Prolimatech Megahalems rev. B Windows 8.1 Ultimate 64 LG E2360 LED 
MonitorKeyboardPowerCase
LG 3D 2363D Corsair K70 (cherry my red) Corsair AX850W PRO GOLD NZXT Phantom [custom] 
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post #4 of 4
It could be, back then I also had troubles resuming from hibernation / standby, now I'm not sure if this other problem is still there as I also did few formats (could have been a Windows problem) and I haven't tried anymore.

It may be worth a try if you know how to deal with the settings, here you can see the possible acpi modes which I would be playing with:
Quote:
S0 (Working) is lit. The CPU functions in entirety; the conservation of power is on a basis of by-device.

S1 (Sleep). The CPU is stopped; The RAM is regenerated; the system functions in reduced power.

S2 (Sleep 2) The CPU does not have any power; The RAM is regenerated; the system is in lower mode of the S1.

S3 (Standby) The CPU does not have any power; The RAM regenerates at minimum; the power supply unit is in mode of reduced power. This mode is also called “Save to RAM”.

S4 (Hibernate). All is powered off, but the memory was saved like temporary file on the hard drive. This mode is called “Save to disk”.

S5 (Off) Everything is shutdown. Means you need a full reboot.

S3 is the best. It uses less power and reboots faster.

Vista and Win 7 have hybrid sleep.


P.s.
It's still weird that this problem showed up out of no where if you haven't touched anything...
Edited by Luc4 - 7/10/13 at 2:46am
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