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Windows 7: [Hardware problem] Random reboots and freezes

06 Aug 2014   #11
younggotti

Windows 8.1
 
 

Hi guys,

yes, the voltages shown by HWInfo look crazy. But, the ones shown by the MSI Windows tool and the ones shown in the BIOS are within the ATX range. Multimeters are really cheap, but I think that the quickest, easiest and most reliable way to verify if the cause of my troubles is the PSU is using another PSU I have and see what happens. I'll do it this weekend and let you know.

and yes, the windows setup is really a mess Months ago, thinking that it could be a software related problem, I tried installing different OSs and each time I didn't pay much attention to get a clean setup. I know that the problems I have now don't depend on that (freezes happen also in the BIOS menu or while performing a memtest), but as soon as the hardware problem is fixed I know I'll have to make a clean install.


My System SpecsSystem Spec
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06 Aug 2014   #12
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Well I guess the finger is pointed at the PSU for me or maybe the hard drive but in any case that is a start.

I am going to look into that HW Info program as I have been using it and linking folks to it for some time and it seems to me that there are a few errors starting to pop up. Shame really because I do like how you can dig right down into components details for example the RAM sticks and GPU.
My System SpecsSystem Spec
10 Aug 2014   #13
younggotti

Windows 8.1
 
 

Little update:

yesterday the pc seemed to work fine for a couple of hours, but I didn't put much hope in that since, as I said the freezes seem to have a random behaviour.

Today I was able to connect a different PSU to the system. I let the pc run for some time both in idle and under stress and it seemed to work fine. So I was starting to hope I had found defective hw component.

As a double check, I connected the defective (?) PSU to a different PC (similar in terms of watt consumption), "hoping" to get a freeze or a re-boot. But, again, also that PC seemed to work just fine.

I've then reinstalled the "original" defective PC and let memtest 86+ run for 10 hours. The PC didn't freeze and no errors came up. Just now I'm having Prime95 and Furmark run at the same time and the PC is working fine.
The only things I notice are:
- CPU temp (as measured by the mobo producer windows tool) is quite high (75 C / 167 F) but I don't think that's an extreme value, considering I'm stressing the CPU and the integrated GPU at the same time
- PSU voltages (as measured by the mobo producer windows tool): the 12V is quite high (around 12.3V with peaks of 12.55) and the 5V is quite low (around 4.96 with dips at 4.88). Anyway they are within the 5% range and seem consistent with the results of this review:
XFX Core Edition 450W Review

To sum things up, the PC now seems to work fine but I have no idea why.
My System SpecsSystem Spec
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10 Aug 2014   #14
essenbe

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

Whatever was causing it, I hope it continues to run well. Let me know how it does. But, those temps ar pretty high for your CPU.
My System SpecsSystem Spec
10 Aug 2014   #15
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

As essenbe has said the temp is way too high and exceeds the makers specs in fact see this
AMD A8-Series A8-5600K - AD560KWOA44HJ / AD560KWOHJBOX max temp according to this site 74C!!

I would be taking a very close look at the cooling system and renewing the themal compounds ASAP.
My System SpecsSystem Spec
11 Aug 2014   #16
younggotti

Windows 8.1
 
 

You're both right, 75 C is out of spec.

I got 75C in a really extreme situation (CPU and GPU stress software running at the same time). In idle the cpu temp stays at around 40C. If I stress test just the CPU the temp doesn't rise above 65C. Anyway, as you said, just to be sure I'll have to renew the thermal compund.

Thanks both, mates
My System SpecsSystem Spec
11 Aug 2014   #17
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Just out of interest what cooler have you on the CPU I am not really a fan of the stock ones these days and for a little outlay even one of the liquid coolers is a good option. That is depending on ones budget of course.
My System SpecsSystem Spec
11 Aug 2014   #18
younggotti

Windows 8.1
 
 

I have the stock cooler and I'm not a big fan either (it's very noisy)
My System SpecsSystem Spec
11 Aug 2014   #19
essenbe

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

Consider a third party cooler. You can buy a new one for little money. I have a box of stock ones. I never use them. I have no idea how I managed to miss this.
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Your System Specs will help us to help you, and doing it in this manner will make them available to all helpers in every post and keep us from hunting for them. We ask that you fill them out in as much detail as possible including Desktop or Laptop, Model number if it is an OEM computer and all components with the Manufacturer and Model number if possible.

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11 Aug 2014   #20
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Yes youngotti as essenbe says mate because the specs at present open out to the machine running 8.1 (down in the left hand side of your post screen in small grey letters)
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 [Hardware problem] Random reboots and freezes




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