Dying CPU or something else! please help

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Cissnei

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Nov 18, 2014
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today, while doing stuff on PC i heard a strange fan-like noise (or rather, wind-like noise, maybe it wasn't the fan) and my PC completely froze (i could see the screen but couldnt interact with it, the red light on the case went off completely too).
I'm not sure about this but i think after it froze it began working more quietly.
I had to restart it.
Anyone knows what could be the reason? And what is dying?

I have 2 monitoring softwares and the temperatures of everything were fine before it froze.
PC has been on for 3 days with pretty high room temperature though (20 C).
Event log didn't show anything specific.

Please HELP
 
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Cissnei

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This PC is really old, here are specs:
It has Radeon 5770HD, 6 GB RAM, Intel E8400, 500 gb HDD, ASUS P5KPL, power supply is some generic 600W.

I turned it back on and It's been only 1-2 hours but yes, nothing has happened so far
 
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PapaWood

PapaWood

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If the temps have been ok, a voltage spike or drop or heat from voltage that may not be recorded could cause a pc to lock up, I would clean out the case well to get any dust off, its possible the PSU is going back, you can also run Windows Memory test to make sure memory is doing OK. I would think possibly the cheap generic PSU first though.
 
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Cissnei

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Hmm but wouldn't a dying/overheating PSU keep resetting the computer instead of freezing?
The case is cold to touch and it's blowing hot air. I also played a very high-end graphics PC games to test it and nothing bad happened
T T
 
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IamTimTech

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These are the two clues that tell me what is wrong with your PC. In the event of a processor or memory failure you would get a message or blue screen. If it were temps you would of seen that. Your power supply is going bad. When a power supply malfunctions this is exactly what happens, just freezes. What brand and model power supply do you have?
 
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Cissnei

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But can dying PSU freeze my PC? its power supply unit, it should reboot or turn off my PC if it was faulty. Not freeze the screen and then keep the PC running T_T
 
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PapaWood

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It takes some experience to know when this type of failure is power related and not caused by the memory. One clue is the repeatability of the problem. If the parity check message (or other problem) appears frequently and identifies the same memory location each time, I would suspect that defective memory is the problem. However, if the problem seems random, or if the memory location the error message cites as having failed seems random, I would suspect improper power as the culprit. The following is a list of PC problems that often are related to the power supply:

Any power-on or system startup failures or lockups
Spontaneous rebooting or intermittent lockups during normal operation
Intermittent parity check or other memory-type errors
Hard disk and fan simultaneously failing to spin (no +12 V)
Overheating due to fan failure
Small brownouts that cause the system to reset
Electric shocks felt on the system case or connectors
Slight static discharges that disrupt system operation
Erratic recognition of bus-powered USB peripherals


http://www.tomshardware.com/reviews/power-supply-protection-calculate-consumption,3066-5.html
 
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PapaWood

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It is going to be far more likely that the PSU failed before the CPU if the CPU has been properly cooled and not over clocked. Thats why I asked in my very first post what your PSU. generic model usually = to cheap but enough to last pasty any warranty (if that)
 
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IamTimTech

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Dying PSU is what causes the solid freeze most often. Memory and CPU usually cause blue screens. I don't know why you are so sure it is the processor. CPU's seldom fail, memory does more often but yields different symptoms. Test it with a new PSU.
 
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Cissnei

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Hi, thanks i learned a lot from these posts. It will be hard to test because it's so infrequent but if it keeps happening i will get a new PSU- since they are cheap, even if its not the issue i won't lose much money. I will keep monitoring everything
 
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