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random restarts on windows 7

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.
37 answers Last reply Best Answer
More about random restarts windows
  1. Random restarts can be caused by faulty psu or faulty ram
  2. Random restarts can be caused by faulty psu or faulty ram
    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.
  3. 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.
  4. 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.
  5. 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?
  6. It doesn't have to do with stress, how many years do you have your components?
  7. Analgetic said:
    It doesn't have to do with stress, how many years do you have your components?
  8. 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
  9. remove the older ram sticks and place 8 to see if it runs normally without restarts
  10. Analgetic said:
    remove the older ram sticks and place 8 to see if it runs normally without restarts
  11. Corsair vengeance 1866 c9 best compatability?
  12. The highest speed you can get on this motherboard so yes try it out.
  13. Analgetic said:
    The highest speed you can get on this motherboard so yes try it out.
  14. 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.
  15. 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>
  16. According to Microsoft event 41 could be a faulty psu ?
  17. 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.
  18. 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
  19. Analgetic said:
    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

    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.
  20. Best answer
    I assume you didn't use both sticks with different frequency, right?
  21. 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 !
  22. hi everyone just another message the computer i'm posting from is the fixed one i hope thanks to you all.
  23. 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.
  24. [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.
  25. Any slot you use will be ok. Now since you still get restarts the problem is the psu and in the worst case the motherboard. I hope you have warranty for what you've bought so you can replace them for free
  26. Analgetic said:
    Any slot you use will be ok. Now since you still get restarts the problem is the psu and in the worst case the motherboard. I hope you have warranty for what you've bought so you can replace them for free
  27. I've changed the dram voltage from under 1.5 to 1.5 pc was running for 4 hrs no probs I'm working at the mo if still running no restarts I'll post back with the results thanks
  28. Pc reboot after over 7 hrs so getting close maybe increase the dram voltage ?
  29. Hi dram voltage went back to auto so must of typed the wrong value which I entered 1.5 so should input 1.50v or 1.500v as in bios dram voltage is running at 1.478v thanks
  30. You don't need to change voltage it is ok as it is. But 1.50 and 1.500 is the same thing. Also try all slots so you can be sure motherboard is not a problem
  31. Analgetic said:
    You don't need to change voltage it is ok as it is. But 1.50 and 1.500 is the same thing. Also try all slots so you can be sure motherboard is not a problem


    Hi I've heard the fx 4170 uses more power than other cpu's voltage if it's a faulty psu maybe that's causing the reboot but will find out tomorrow if it's that and then it's prob the cpu or motherboard that's what will be left thanks.
  32. I have changed the psu but still getting the event id 41 i have turned off the automatic restart to stop the computer from rebooting but getting the critical alert log every hr not sure if should of reset the cmos first before installing new psu maybe its windows being over cautious and now only the mb and cpu left any help please and got cpu-z running thanks
  33. With what psu did you replace your old one for?
  34. Analgetic said:
    With what psu did you replace your old one for?


    Hi i had a vx550w replaced it with a cx750w both corsair thanks.
  35. It's good that you added more so you can upgrade you system in the future. Check this article http://www.sevenforums.com/bsod-help-support/104790-possible-causes-kernel-power-critical-errors.html
  36. Analgetic said:
    It's good that you added more so you can upgrade you system in the future. Check this article http://www.sevenforums.com/bsod-help-support/104790-possible-causes-kernel-power-critical-errors.html


    Hi i will try the performance power option 1st as this is what the original setting was on and reset the cmos hopefully this will finally work and it's prob Microsoft that causes most probs thanks.
  37. Hi just want to thank everybody who contributed to this thread as finally this issue is now solved as mentioned earlier, and it was indeed the power supply thanks.
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