random restarts on windows 7

Monty1

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Hi i recently bought a used pc that had random restarts as I thought I could fix it. System is a asus sabertooth 990 fx mb, amd fx 4170 with a Arctic cooler 7 pro rev 2 temp for cpu is 40 degrees was running windows 8 also a corsair 550vx psu. I added a gtx 660 cu gpu and a new sandisk ssd with a new install of windows 7 and 2gb of ram just to install everything and add more ram later also i reset the cmos everything was running fine 134 updates was installed then the restarts started to happen any help thanks.
 

Monty1

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Monty1

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Thanks for the reply
I had a psu problem about 5 years ago and it would shut down the pc completely and wouldn't be able to turn the pc on for several minutes are psu's different nowadays? Gona get new ram on Monday to narrow the problem down.
 

neieus

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Random restarts can be caused by just about everything. You'll need to narrow it down before you start pointing fingers at any particular thing. First try some basic trouble shooting such as checking your system event log around the time before the reboot for errors and checking for crash dumps.
 

Monty1

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Hi I'm running prime95 to try and narrow my problems down so far the computer has been running for nearly 2hrs under stress with no restarts as before restarted after only half an hr and then all the time once the computer was on, just seems strange that the computer restarts when idle rather than under stress?
 

Monty1

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Hi I added a brand new ssd, gpu and 2gb of ram just to test the pc everything else is less than 6 months old I'm going to add 8gb of corsair vengeance 1866 c9 as I've heard it works better on a amd set up this is my next step and the computer has been running now for 3hrs and no restarts
 

Monty1

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Also I've just read another thread with the same problem and it was his plug socket or gang so i will try the ram and plug the pc in to another and will watch some video later to test the gpu and post back tomorrow thanks.
 

Monty1

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just adding this critical erro in events log that could be the problem
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
<Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
<EventID>41</EventID>
<Version>2</Version>
<Level>1</Level>
<Task>63</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000002</Keywords>
<TimeCreated SystemTime="2014-06-09T16:30:02.963206000Z" />
<EventRecordID>2636</EventRecordID>
<Correlation />
<Execution ProcessID="4" ThreadID="8" />
<Channel>System</Channel>
<Computer>dazza-PC</Computer>
<Security UserID="S-1-5-18" />
</System>
- <EventData>
<Data Name="BugcheckCode">0</Data>
<Data Name="BugcheckParameter1">0x0</Data>
<Data Name="BugcheckParameter2">0x0</Data>
<Data Name="BugcheckParameter3">0x0</Data>
<Data Name="BugcheckParameter4">0x0</Data>
<Data Name="SleepInProgress">false</Data>
<Data Name="PowerButtonTimestamp">0</Data>
</EventData>
</Event>
 

Monty1

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I looked at events log and found a critical error called event 41 i looked this up at Microsoft and the answer states it could be a faulty psu.
 

Analgetic

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If ram isn't the problem (assuming you tried with another slot and another stick) then I would point out to psu. I would go for Corsair AX series (7 years warranty) they are one of the best you will find in market now
else you can choose one of these
The highest quality and most stable PSUs available on the hardware market today. Highly recommended for any situation
Antec
High Current Pro - 1200 watts
High Current Platinum series

Be Quiet Dark power pro P10 (Greater than 750 Watts)

Corsair
AX / AXi series (MK1 AX series is also an excellent choice)
AX1500i (MK3 AX platform, Titanium efficiency)

EVGA
Supernova G2
Supernova P2

Kingwin Lazer platinum series
PC Power & cooling Silencer series (Only above 610 Watts)

Seasonic
M12 II 650 / 750 / 850w (Includes EVO series)
Platinum series (Fanless or not)
X series

Super Flower
Leadex Gold series
Leadex Platinum series

XFX
Black edition series
XXX series
 

Monty1

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Hi thanks for the reply.
The psu is a corsair vx550w (if not faulty) I've just read the motherboard instructions booklet and apparently the motherboard scans/tests the ram installed on the mb and if it thinks it's not compatible it will reboot and tests the ram again and reboot again etc my ram is not listed on the recommended section also depending on the mhz you chose you can install 2x4gb or 4x4gb (1866 etc) that's why other people could be having the same problem if choose 2133mhz then 2x8gb is fine but not 4x8gb etc.
 

Monty1

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Hi everybody think this post is near its end because finally found the answer as stated above i installed my new ram today but got a reboot after 1 hr but realised i didn't reset the cmos also i adjusted the mhz 1333 mhz (default) to 1866mhz for corsair vengeance ram that it should also i installed a usb 3 driver and set cup fan on auto, restarded the pc and installed new updatates and so far the pc has been running for 4hrs and no restarts i also checked the logs as big help from other members that i needed to check and its gone from critical errors to just an error to just information logs just glad idid'nt buy a new psu going to run more tests like gaming just need to buy a secondary hdd thanks !
 

Monty1

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Hi i need some help on how to change the ram timings in bios on the sabertooth fx990 r2.0 i've already changed some ram timings but not sure if i've done it right so here goes,
in the boxes were it says auto ive changed it from 9 to 10 (ras to cas) and ras active from 24 to 27 changed command timing 1t to 2t and i think ras to cas delay to 10 not if its correct or i need to do something else the ram is corsair vengeance 1866mhz 9-10-9-27 thanks.
 

Monty1

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[quotemsg
=13473893,0,1575719]I assume you didn't use both sticks with different frequency, right?[/quo

Bought new ram corsair vengeance 1866mhz 9-10-9-27 but got a reboot over 3hrs later the system started to become more stable as only lasted an hr last time went into bios and changed the default 1333mhz to 1866mhz but the pc rebooted againg after 3 hrs so went back into bios and then realised the timings was still set at default 9-9-9-24 so i changed were it says auto to 10 and 24 to 27 also changed ras to cas delay to 10 and command timing from 1t to 2t not sure if anything else needs change and please tell the best slots for the ram thanks.
 

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