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Windows 7: Crash on cold boot

22 Aug 2011   #1

Windows 7 - 64 bit
Crash on cold boot

Hi there, about a month ago I decided to get myself a new rig. I ordered the parts online and put them together myself. At first everything worked fine, I got Windows 7 up and running and drivers were installed without error. Then I decided to try and overclock my i5 2500k, since I have little experience with overclocking in general I googled a little and read up on a few step-by-step tutorials on how to go about with this. I'm not sure wether or not it's something I've meddled with that caused this problem, but in the middle of clicking around in my BIOS my computer suddenly dies. On reboot it halts and crashes after a few seconds only to reboot again before it even gets to the initial boot screen. It keeps going like this for 3-4 consecutive crashes until I pull the power. I open up my case and since my motherboard has a "mem-ok!" button which, according to the manual is used to reset BIOS and allow a safe boot. I press and hold for 5 seconds and it boots correctly and lets me undo any changes I've done to the BIOS. Everything seemed to be in working order, but now whenever I do a cold boot it still halts and crashes once or twice before it does a succesful boot. The problem has persisted for a few weeks now and it's bugging me because it means there's a problem somewhere. I'm clueless as to where exactly, though. Anyone with experience or input that have ran into similar issues? Feel free to share your thoughts.

Oh, and if it helps I thought I'd add the full specs of my computer:
Intel Core i5 2500k
Corsair Vengeance DDR3 1600MHz 8GB CL9
MSI GeForce GTX 560Ti 1GB PhysX (Twin-Frozr II)
Corsair TX V2 750W PSU
Corsair SSD Force 3 120GB
Seagate Barracuda 7200.12 1TB


My System SpecsSystem Spec
22 Aug 2011   #2

Windows 7 64b Ultimate

Hello SamohT, welcome to SF!

Do I understand correctly it crashes way before it gets to a W7 boot?
If so... check all connections in the case... sounds like a bad power or bus connection.
Does it act identical whether the boot is literally cold as in temperature, vs a shutdown and reboot when warm?

If you think it also crashes in W7 itself, please upload as in this tut:
My System SpecsSystem Spec
22 Aug 2011   #3

Windows 7 - 64 bit

Thanks for the reply and welcome. You're correct, I get no screen picture whatsoever, it just flat out crashes and reboots a few seconds after I hit the power button and does this at least once, sometimes twice, before it boots succesfully. And yes, this still happens when I shutdown/reboot after the computer has been on for a few hours, so I guess my topic is a little misleading. It's working perfectly in Windows so far, no BSOD or anything so I don't think it's a software related issue.

I will take your advice and check the connections, will post back if I find anything.
My System SpecsSystem Spec

22 Aug 2011   #4

Windows 7 64b Ultimate

OK, thx for posting back. Long shot but I've seen it before... if it is ONLY after hitting the power button.... that is the thing to check too.. the power button. I've seen cases where a cheap button "connects" but disconnects in the "spring movement back to its normal position". Well, anyway, difficult to describe if you've not seen it before.

How many seconds after pressing the button does it reboot?
My System SpecsSystem Spec
19 Jan 2012   #5

Windows Home Premium

My experience may be helpful.

My new PC would work fine all day and could be shut down and rebooted without a problem. Except if shut down overnight. The next morning on booting up it would hang at various stages of the boot up or repeatably re-boot. After trying various actions such as repair or safe mode, it would eventually come good and work for the rest of he day.

I took it back several times to the seller who said that it tested OK. Nevertheless, he replaced parts until it had a new hard disk, motherboard and power supply but the problem persisted. There was not much left of the original computer.

Eventually, I downloaded memtest and created a bootable CD.

The first run of memtest showed no errors but when run from cold in the morning bingo! Up came a screenful of red messages. Ten minutes later the error messages stopped and the memory tested OK from then on.

A new RAM memory stick fixed the problem
My System SpecsSystem Spec
19 Jan 2012   #6

Win 8 Release candidate 8400

You do realize this is a very old thread.
My System SpecsSystem Spec

 Crash on cold boot

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