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PC randomly shutting off
Steev
What can I do for you?Registered User regular
What can I do for you?Registered User regular
Today my PC randomly froze up while I was browsing the internet. Just before this happened, I heard one of hard drives revving up (not abnormal behavior), and then a sudden blast of white noise from my speakers for about 1 second. That's when I noticed the cursor wasn't responding to my mouse. I tried to power it down, and it did not immediately respond...but eventually it did and booted up OK. Then it happened again.
This time, when I tried to turn it on, the HD access LED and the fans in the front (and their LEDs) repeatedly powered on and off every few seconds. Eventually it stabilized and booted up. But it still would freeze up and shut down without warning.
I took it outside and blew out a year's worth of dust, thinking it was maybe an overheating problem, but no. Still having issues. I'm actually surprised it's stayed up for the last half hour.
Specs:
CPU: Intel i5-750 @ 2.67 GHz
Motherboard: Gigabyte Z68XP-UD3P
PSU: Corsair HX520W
Memory: 4 GB
Video card: AMD Radeon 5850
Running Windows 7
I'm suspecting it's the power supply. Most of the components are almost 5 years old at this point, but a few are a little newer than that. It's all been running pretty well for the most part. If anyone has any suggestions, though, I'd appreciate it.
Thanks!
This time, when I tried to turn it on, the HD access LED and the fans in the front (and their LEDs) repeatedly powered on and off every few seconds. Eventually it stabilized and booted up. But it still would freeze up and shut down without warning.
I took it outside and blew out a year's worth of dust, thinking it was maybe an overheating problem, but no. Still having issues. I'm actually surprised it's stayed up for the last half hour.
Specs:
CPU: Intel i5-750 @ 2.67 GHz
Motherboard: Gigabyte Z68XP-UD3P
PSU: Corsair HX520W
Memory: 4 GB
Video card: AMD Radeon 5850
Running Windows 7
I'm suspecting it's the power supply. Most of the components are almost 5 years old at this point, but a few are a little newer than that. It's all been running pretty well for the most part. If anyone has any suggestions, though, I'd appreciate it.
Thanks!
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Posts
E: That won't help if you're just getting really bad droop due to poor voltage regulation, you'd need to find some test points on your motherboard.
Also, my PC has not yet shut off/rebooted since I made the OP.
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Everything external to PS is safe but DO NOT go into the power supply.
My Backloggery
Yeah they're good on replacements. PSUs are like hard drives once one starts having problems its a slow road to total death. And it might take your motherboard with it when it goes.
I wouldn't assume it is the PSU. if you are lucky enough to have an spare graphics card lying around you can test that real quick. I would also try pulling out things, ram, hard drives, etc, from the motherboard and see if that affects anything.
In my case I was glad I didn't have to replace the PSU (which was my initial thought as well) because of much work it is to rewire everything.
Well, since I last posted, I must admit I've not really messed around with my PC to test anything. Strangely enough, the issue has not reared its head since then either. I suppose I'm just waiting for the other shoe to drop.
My Backloggery