Win 7 x64 randomly rebooting

[krippled]

I've been having a problem with windows 7 rebooting on me. I'm usually just surfing web and listening to music when it happens, but also does it when sitting idle. Its been happening for a while now, but I just installed a new cpu and its been happening about every day.

System:
Win 7 x64 v6.1.760
Amd Athlon 64x2 6400+ 3.2GHz
G skill F2 4gb (2gbx2)
ocz stealth stream 600watt (ocz600sxs)
gigabyte MA78GM-S2H


Found this in event viewer:

Log Name: System
Source: Microsoft-Windows-Kernel-Power
Date: 3/31/2010 8:58:45 PM
Event ID : 41
Task Category: (63)
Level: Critical
Keywords: (2)
User: SYSTEM
Computer: Low-lyfe
Description:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.


- System

- Provider

[ Name] Microsoft-Windows-Kernel-Power
[ Guid] {331C3B3A-2005-44C2-AC5E-77220C37D6B4}

EventID 41

Version 2

Level 1

Task 63

Opcode 0

Keywords 0x8000000000000002

- TimeCreated

[ SystemTime] 2010-03-30T22:49:57.048814900Z

EventRecordID 26199

Correlation

- Execution

[ ProcessID] 4
[ ThreadID] 8

Channel System

Computer Low-lyfe

- Security

[ UserID] S-1-5-18


- EventData

BugcheckCode 0
BugcheckParameter1 0x0
BugcheckParameter2 0x0
BugcheckParameter3 0x0
BugcheckParameter4 0x0
SleepInProgress false
PowerButtonTimestamp 0



If anyone could help me out I'd appreciate it.Tia

 

[SimMike2]

Sounds like an overheating CPU. Are you sure the heatsink is fully seated?

 

[krippled]

To the best of my knowledge it is, I took it off cleaned, reapplied the heatseak compound and reseated it

 

[krippled]

Anyway to find out for sure what could be causing this?

 

[thedosbox]

Date: 3/31/2010 8:58:45 PM

What were you doing when this occurred? i.e. you'll need to narrow down what was running whenever the system shuts down.

 

[pollardhimself]

Sounds like ram! Did you set your ram timing and voltage? Sometimes the default settings in the bios are not right. Or you have a bad stick of ram which you can run memtest to find out

 

[JackMDS]

Boot onto Safe mode and see if it happens too.

 

[Spg]

I had the same problem, but it was with a system I just built. It turned out to be the memory.

 

[krippled]

What were you doing when this occurred? i.e. you'll need to narrow down what was running whenever the system shuts down.

I was just surfing the web (using Opera 10.5) when it crashed that time, but its crashed before when I just let it sit for a couple hours with no programs running.

Sounds like ram! Did you set your ram timing and voltage? Sometimes the default settings in the bios are not right. Or you have a bad stick of ram which you can run memtest to find out

Haven't messed with any of the ram settings cause I would know what i'm in doing with that stuff. According to Everest they are:

Module Name G Skill F2-6400CL5-2GBPQ
Module Voltage: SSTL 1.8
Memory Timings:
@ 400 MHz 5-5-5-15 (CL-RCD-RP-RAS) / 24-51-3-6-3-3 (RC-RFC-RRD-WR-WTR-RTP)
@ 266 MHz 4-4-4-10 (CL-RCD-RP-RAS) / 16-34-2-4-2-2 (RC-RFC-RRD-WR-WTR-RTP)

Just got finished running memtest86 didn't come up with any errors.

Boot onto Safe mode and see if it happens too.

gonna try that here soon see what happens

I had the same problem, but it was with a system I just built. It turned out to be the memory.

okay, Since I have windows 7 64bit would I be able to take a stick of ram out and run on only one stick of 2gb just to test the memory one at a time or would it not run on 2gb of ram? Thanks guys I appreciate it

 

[pollardhimself]

Compare the ram timings and voltage to the ones in your bios

http://www.overclock.net/faqs/26706-info-ram-timings-dummies.html

 

[SimMike2]

Memory problems will mimic the failure of every single hardware device and/or program on your computer.

 

[krippled]

I've been pretty busy with a new job and haven't been able to post but here are some updates:

Ran more memory tests, came back good.
Ran in safe-mode for awhile still would reboot automatically
Removed video card/drivers, still reboots using on board video.
Swapped ram from another computer(2gb total) still reboots.

I thinking its either the motherboard, cpu, or maybe windows 7

I've updated my chipset drivers still having reboots.
I used to run an AMD Athlon X2 2400+ and would have the same problem just not as frequent maybe once every week or so, now that i've switched to the Amd Athlon 64x2 6400+ its been happening atleast once a day.

I haven't seen the exact temp when it reboots, but from what I've seen cpu temps usually are between 44-55 C. and motherboard is at 30c right now

Are there any other tests or things i can do to figure this out?
Thanks

 

[SimMike2]

The problem isn't Windows 7. It has to be hardware. I think you've narrowed it down to the motherboard.

Random reboots is a nasty hardware problem that is pretty much unacceptable to me. Did you try another power supply?

 

[krippled]

Haven't tried another power supply, mostly because I don't have one that isn't being used.I guess I know where my first paycheck is going