PC keeps Randomly Restarting

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therabidwookiee

therabidwookiee

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Jan 8, 2013
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I was playing Battlefield 3 like I always do every night and for some reason last night during gameplay my PC randomly rebooted. So, I log back on get back in my game and a few minutes later it reboots again. Now by this time I am getting a little irritated and concerned. I check the temps and they are all fine. I don't feel any hot air coming out of my PC. I then shut my PC off and check to make sure everything is connected / fastened properly. They are, and it still reboots. So now by this point I am pissed as all get out....I go as far as to format my whole hard drive, get everything loaded back up, and then ...REBOOTS! And as I am typing this on my laptop.... it reboots again! This is incredibly frustrating and does anyone know of what it may be or a way to fix it?

My PC Specs:

Windows 8 pro 64bit
Nvidia Geforce GTX 670 4gig Superclocked (2x SLI)
Asus P8Z77-V Motherboard
Intel i5 2500k CPU
Cooler Master Hyper 212+ Heatsink
Thermaltake 850 wat PSU
16 Gb of ram
 
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JobCreator

JobCreator

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Apr 18, 2013
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Do you have any buttons on your keyboard that you might be pressing unknowingly? Like power option buttons? That's the first thing I thought of. Second would be Windows Update, but if it's doing it that often I wouldn't expect WU to do that.
 
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therabidwookiee

therabidwookiee

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Jan 8, 2013
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sometimes I wont even be near my pc when it reboots. And it isnt windows update causing it. Its too frequent. ..plus I turned it off
 
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JobCreator

JobCreator

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Yea Windows Update wouldn't do it that often, unless the updates were caught in a redundant cycle of failure/retry. Do you have any temperature limitations on the CPU? Auto shutdown when it reaches a certain temp or the like? I'm just speculating here, as I have no real idea why it would do that, but sometimes the right question can prompt a eureka moment.
 
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therabidwookiee

therabidwookiee

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To my knowledge I don't have it set up that way...besides... it just randomly started shutting down within the past day or two. I really hope it isn't the mother board or psu... i just got them a few months ago >_<
 
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JobCreator

JobCreator

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I read a forum post about a guy with the same mobo randomly restarting and getting stuck in a restart loop... it was determined that the profile he was using to set his timings had the RAM running at a different latency in the profile than what was recommended by the manufacturer. You might look into that. Open the case, take a stick out, write the numbers that are on it down, and post it here. I can help you through that process. No guarantees that's the problem, but worth a shot, especially because it's probably not running at the recommended settings if you never clocked it.
 
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therabidwookiee

therabidwookiee

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Jan 8, 2013
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Well its not stuck in a "restart loop" per say.... It will reboot and then i can log in to windows and use it for a time and every once in a while it will reboot.
 
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therabidwookiee

therabidwookiee

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Jan 8, 2013
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ok, I was able to take time and peak inside my PC case. It is Kingston Hyper Genesis DDR3 ram. not really sure what numbers you're looking for so I will just type up what is on the tag (how it appears on the ram):

9905403-437.A01LF KHX1600C9D3K4/16GX
0000005629639 KIT OF 4 1.65V
3RLRU-095CCU-7W686


Then on the side of the tag it reads:
ASMM16C1119

Ill try and post a picture.. last time I tried it didn't work

http://i439.photobucket.com/albums/qq111/jdavid117/20130624_195635_zpsce42a442.jpg
 
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JobCreator

JobCreator

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http://www.kingston.com/datasheets/KHX1600C9D3K4_16GX.pdf OK... so here's what you do. Or, at least, here's what I would do. Enter BIOS upon starting the rig. Do that by (usually) jamming delete during the POST screen. That's the screen that says ASUS Z877 blah blah and only lasts a few seconds. There should be commands issued on that screen like f11 for safe mode, delete for BIOS, etc. If it's not delete, it should be written there. Either way, get into your BIOS. There should be a button labeled Advanced Mode - go there. At the top, there are sections, one being AI Tweaker. Go there. In the list that forms, you'll see two things. Memory frequency - this is probably set to auto. If it's available, change that to 1600MHz. Secondly, there is DRAM Timing Control. Go there. Primary Timings is your concern. The first 4 timings in fact. Those, if they aren't already - having previously changed the frequency to 1600 - should all be set to 9-9-9-27 starting with CAS Latency and ending with tRAS or they may refer to that as Precharge Delay. This is as far as youtube will show me in your particular motherboard's BIOS, so somewhere in there is a setting for DRAM Voltage. I'm not sure exactly where, but somewhere within that menu there should be a voltage setting. You need to change it from (typically) 1.5V to 1.65V or else the RAM won't work properly under the timings we just set. Just make damn sure you're changing the DRAM voltage and nothing else, lol. Save the settings in the BIOS by (usually) hitting f10 and answering YES. The computer should restart. Upon restarting, jam delete (or whatever key gets to BIOS) again and verify that the settings you just entered took effect. If so, exit without saving. You can run the rig as you normally would, but I would try to prompt a crash by doing whatever caused the restarts most frequently i.e. playing BF3 or whatever. Get back to me.
 
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