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PC reboots when standing up...

Last response: in Systems
February 20, 2010 10:00:02 AM

Hi there, basically I built a gaming PC about a year ago, at first it was fine; but after a month or so it would reboot whenever it was standing upright (tower) but when it was laying flat, it would be fine. Now, I've left it a long time to ask because I just needed a PC to work so I dealt with it laying down. Now I have come to redesign my room so I would like to be able to utilise space. I checked all the power connections and stood it up, low and behold it happened again. I have the following report from windows:


Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.
Locale ID: 2057

Additional information about the problem:
BCCode: 3b
BCP1: 00000000C0000005
BCP2: FFFFF88006BA84E6
BCP3: FFFFF880087BBE80
BCP4: 0000000000000000
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

Files that help describe the problem:

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However, normally it doesnt bluescreen, it just goes black as if I hit the reset button, then will not get into windows. I'd appreciate some help as this is thoroughly annoying.

System spec:

Intel Core2duo E8400
Asus P5Q Pro MB
Nvidia GT 260
W7 64bit (happens with xp though)


More about : reboots standing

a b B Homebuilt system
February 20, 2010 10:45:17 AM

maybe an obvious answer, but are all your wires secure? in sockets properly,not shorting on anything else? that'd be the first thing i would suspect, ill check back to see how you do,
February 22, 2010 12:26:40 PM

I'm pretty sure they're all fine tbh, and it literally only happens when the PC is laying down, I'd expect if it was cables, it'd be more intermittent.

Really quite puzzling :/ 
Related resources
a b B Homebuilt system
February 22, 2010 12:38:29 PM

Sounds like a possible overheating problem. The CPU cooler will make better contact due to gravity when it's laying down. What are your idle/load CPU temps?
February 22, 2010 1:16:46 PM

I'm not so sure as I'd have thought that would take a minute or so to kick in, but this literally happens as soon as you try to boot. I will check temps anyway, which program would you reccomend? I used to use CPU-Z.

February 22, 2010 1:23:06 PM

sorry speedfan not CPU-Z
a b B Homebuilt system
February 22, 2010 1:24:39 PM

CPU-Z doesn't show the temp. There are a ton of applications you could use. CoreTemp, RealTemp, and SpeedFan come to mind. It only takes a matter of seconds for a CPU to overheat if not properly cooled.

Edit: You beat me to it. SpeedFan should work fine.
February 22, 2010 1:32:55 PM

maybe you have a graphics card that is not fully secure or the motherboard cant support its weight? Or do you have an aftermarket heat sink on your processor? Obviously it is something heavy causing this problem. This is why some cases have a built in weight support for the gpu (like my wife's computer) But anyway i would check anything that is pulling downward when your computer is upright. Not sure how you could solve this problem besides maybe buying a new case or a stronger motherboard.