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New computer rebooting itself??

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  • Windows
  • RAM
  • CPUs
  • Computers
Last response: in CPUs
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August 18, 2014 7:57:23 AM

Hey guys, I was wondering if you could me out here. I bought a new mobo, cpu and ram and after reinstalling win7, my computer is always rebooting itself within a few minutes of boot up (never a bsod). Sometimes it feels fairly random, other times I've noticed it reboots when installing something onto windows. In one case I noticed it did so whenever I tried to install Fiddler by telerik. The CPU area never feels hot so I don't think it's overheating? (using stock heatsink). Right now I think I'll RMA the CPU since I've tested all the other hardware except mobo, though wanted your ideas on this before.

Some things I've tried so far:

Swapping out the ram for my old working gskill.

Swapping out PSU for a different one

Installing into HDD instead of ssd

Reapplying the thermal paste to the CPU + reseating the CPU.

Reinstalling windows + resetting bios(did this before any major change anyway).

Running with only the required hardware plugged in.

Running without GPUs

Specs:
i7 4790k
Gigabyte Z97X-UD5H-BK
Seasonic xseries 750w PSU
Corsair vengeance pro 2x8gb
2x MSI r9 280x GPU
120 + 240gb mushkin ssd
1tb western digital black HDD

Let me know what you think might be causing it. Thanks for any help!

More about : computer rebooting

a b à CPUs
August 18, 2014 8:56:39 AM

Have you tried putting a single stick of RAM in one slot at a time? I believe you are getting BSOD's although your computer restarts too fast for you to see it.
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August 18, 2014 12:15:04 PM

theonerm2 said:
Have you tried putting a single stick of RAM in one slot at a time? I believe you are getting BSOD's although your computer restarts too fast for you to see it.


I tried with only one of the vengeance sticks in and still had the reboots. The BSOD may not have the chance to be displayed since it reboots instantly without warning. I have no other 1150 CPUs to test with to see if it's the new mobo or not :( 
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a b à CPUs
August 18, 2014 1:59:36 PM

spiphix said:
theonerm2 said:
Have you tried putting a single stick of RAM in one slot at a time? I believe you are getting BSOD's although your computer restarts too fast for you to see it.


I tried with only one of the vengeance sticks in and still had the reboots. The BSOD may not have the chance to be displayed since it reboots instantly without warning. I have no other 1150 CPUs to test with to see if it's the new mobo or not :( 


Did you try the one stick in all the other slots?
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August 18, 2014 2:57:39 PM

theonerm2 said:
spiphix said:
theonerm2 said:
Have you tried putting a single stick of RAM in one slot at a time? I believe you are getting BSOD's although your computer restarts too fast for you to see it.


I tried with only one of the vengeance sticks in and still had the reboots. The BSOD may not have the chance to be displayed since it reboots instantly without warning. I have no other 1150 CPUs to test with to see if it's the new mobo or not :( 


Did you try the one stick in all the other slots?


Ah, no I only tested in slot 1. I'll test that when I get home tonight. Is ram a common cause to something like this? I've managed to have a few tabs open in IE which lead me to think that it might not be the ram. I also noticed some of the core temps on the cpu sometimes randomly jump to 80-high 90s under less than 20-30% load. Is that a sign of a faulty CPU?
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August 19, 2014 9:05:52 AM

Still rebooting no matter which ram slot I use (only one slot in use at a time)
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Best solution

August 19, 2014 9:10:40 AM

Lol I almost have the same build as you and im encountering the same issues. Try updating the BIOS and check your device manager for any unknown devices and get updates for them. Do you mind telling me your auto cpu voltage?
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August 19, 2014 10:24:24 PM

I updated the BIOS to f6 (most recent). Will update if I still have any issues
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August 20, 2014 9:49:31 AM

ouch that voltage for your cpu is deadly man. Your CPU wont last very long unless you lower it. IT IS VERY IMPORTANT THAT YOU LOWER IT. Look at your CPU idle temp of 79c. Sorry for the caps but it is very important.
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a b à CPUs
August 20, 2014 9:55:37 AM

Yeah. That vcore voltage is awfully high.
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August 20, 2014 5:33:15 PM

Looks like the voltage has lowered since updating my bios.
http://i58.tinypic.com/15d846a.jpg

Whilst typing this CoreTemp is telling me the VID is 1.2634V. Is that a more normal voltage on this CPU or should this still be lowered?
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August 20, 2014 6:10:44 PM

i have my i7 4790k on 1.2V stable with turbo mode on so i guess you could go a bit lower.
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August 20, 2014 10:08:17 PM

Deathly1 said:
i have my i7 4790k on 1.2V stable with turbo mode on so i guess you could go a bit lower.


Thanks a lot guys.. It looks to be working fine now. Hopefully the previous use with the voltage so high won't have damaged the CPU too much.
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August 21, 2014 12:54:11 PM

as long as you didnt stress test or push the cores to that voltage I think you are good. Whatever damage was caused may be minor depending on how much you stressed your computer.
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