Random Reboots

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8 Oct 2007
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127
Location
N.E. Lincolnshire
Having an issue with my mums 6 month old system. Seems to randomly lock up or just the screen will turn black and then it'll reboot itself. Checking the event view its showing bunch of event id 18 and 20 errors.

Have looked on BlueScreenView and its showing ntoskrnl.exe issues on all of the dumps.

I've tried running prime and memtest but it just sits there happily processing away with no errors

CHKDSK /f comes back clear

Anyone got any ideas??

Motherboard: Gigabyte F2A88X-D3H
CPU: AMD A6-6400K
everything is running at stock
 
Read the bluescreen. It may be telling you the name of a driver that's blowing up. Google what it says to find out which. You can upgrade the driver if that's what it is. If it says something about page fault it may be memory that's having issues.
Could be too may things plugged into the PC sucking too much power.
Could be that the memory/pci cards just need taking out and putting back in a few times (while powered off at the wall) to scratch up the surface contacts and get a good connection - they get a sheen over time and can make it hard for signals to pass.
Might just be hot if there's a lot of dust inside, or fans have broken.
 
just crashed again... have checked WhoCrashed and its showing the following

On Wed 04/03/2015 10:18:01 GMT your computer crashed
crash dump file: C:\Windows\Minidump\030215-21340-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x4AF18C)
Bugcheck code: 0x124 (0x0, 0xFFFFFA8005D762B8, 0x0, 0x0)
Error: WHEA_UNCORRECTABLE_ERROR
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This bug check indicates that a fatal hardware error has occurred. This bug check uses the error data that is provided by the Windows Hardware Error Architecture (WHEA).
This is likely to be caused by a hardware problem problem. This problem might be caused by a thermal issue.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.

Have checked HW Monitor to see what the temps are showing as... seems to be sitting around 45C (the max is showing as 75C)

When it crashed it was at 68C... too hot???

She was playing some online flash games at the time... surely that can't put that much load on can it??

Is it just getting too hot and then rebooting itself? (sometimes it just locks up and doesnt reboot itself). Its just the stock cooler that came with the cpu

Strange thing is tho I've run a Prime95 test for several hours, but it just doesnt crash... the temp gets up to 80C but it doesnt crash out at all??
 
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just rebooted as I was posting this... temp was current at 47C that time

for the A6-6400K its says max temp is 70C... but I've had it up to 80C with prime95 and it was totally stable
 
i would recommend to run System Integrity Checker

Start > Run > CMD > Right Click and Run as administrator > SFC/ SCANNOW

Plus whats Os are you running?
 
I ran SFC/ SCANNOW the other day... but dont understand/know where to look at what its telling me

OS is windows 7
 
I will have a look for you :) have you check the post after about the Mal and Virus?


EDIT: Have you made sure all your dives are up to date? Use a program called Driver Booster to check them out.
 
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yeap have checked aml and virus all clear

will give drive booster a go and make sure everything is all up to date
 
updated the drivers... just some audio and usbs ones that were old.

am using kaspersky and malwarebytes anti-malware
 
Or you could try
How to do a Startup Repair:
Method: Perform a Startup Repair.
Boot from the Windows 7 DVD
a) At the Install Now screen
b) Click Repair your computer
c) Click Advanced Options
d) Click Troubleshoot
e) Click Startup repair
f) Follow the on screen instructions
Let us know if it helps.
 
See if that has fixed it? or are you still getting the problems?

something else must have updated as well as now when running prime95 100% CPU and 95% Ram usage is only generating 50C rather than 80C :D

too early to tell if this has fixed the reboot issue tho, that would happen too randomly to be able to reproduce it. I'll give the system a good work over for the next couple of days and see how it goes. I'll try a start up repair if/when I get a crash again.

thanks for your help
 
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