Comp keeps shutting off

N

nothingleft321

New Member
I built a computer with these specs:

Q6600
Asus P5N-D MoBo
4gb OCZ Reaper Ram
8800GS w/384 memory
650W PS
250gb hard drive
good enough disk drive

I put everything together just fine and it booted alright, but when I tried to get to the setup menu it randomly turned off. It kept turning off anywhere from several seconds to several minutes after booting. I finally got it to start installing the BIOS, but in the middle of doing this, the comp shut off again. I'm pretty sure that ruined the MoBo, so I had to send it back into Newegg. I'm just curious to know why it keeps randomly shutting off. Is it really a defective MoBo? By the way, I'm not all that professional with computers, so I would appreciate some feedback in simple terms.

Thanks
 
You likely saw a bad board to begin with seeing the constant shutdowns. Don't feel bad since most of us have gone through that at one time or another. Here it was on the current build where the first of two boards ran normal for 3 days and then only saw a 2-3 second start up of lights and fans and then capoo eee...

I returned that board fast with condolences! A friend saw two boards come in both dead on arrival and was advised to select a different model. That replacement has been running for over 1 1/2yrs. already. The vendor mentioned probably seeing a bad batch of boards coming in there.

Let's hope you see better results once the replacement is in. Once in awhile a few boards get out seeing bad caps or some other problem which is why dealer as well as manufacturers have return policies and product warranties.
 
Are you certain it wasn't an over-heating issue? Are you positive the HSF is installed properly? Even a gap the size of a millimeter can be enough to cause an auto-shutdown.
 
theres no way it's an overheating issue, shutoffs way too soon. i kinda doubt it's your mobo too. though they are deffective sometimes, doesn't really sounds like the way a faulty motherboard would act. are you sure all your hardwares compatible? i know you're noobish but i bet you could handle using a friends mother for testing...
 
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theres no way it's an overheating issue, shutoffs way too soon.
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CPU's generate a lot of heat very quickly; it's very possible that the OP's is reaching auto-shutdown temps after several seconds.
 
A bad cpu won't see the system even start to boot let alone allow access to the bios setup. Either an audio alert would be heard or a visual message would appear onscreen. For temps I've seen temps get hot while the overheat protection never kicked in to shut the system down.

If the supply is wimping on you since startup is where the largest draw on the supply is generally seen during the post tests the power would suddenly drop off where everything shuts down as a result. Seeing bad caps, a bad chipset, and even a bad bios eprom or incomplete flash would be something to consider.
 
I've ran computers without a fan for 10min or more, if you want to claim your cpu theory be my guest. though i doubt you have any evidence to back it up.:)
 
The Good Guy said:
I've ran computers without a fan for 10min or more, if you want to claim your cpu theory be my guest. though i doubt you have any evidence to back it up.:)
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I totally agree with imsati on this one. If that was a Q6600 B3, I wouldn't be suprised.

I have ran a Celeron 420 accidentally with no fan. It ran fine, even after a 500MHz or so overclock. However, each CPU is different. I have ran a Pentium 1 with no heatsink at all. Each CPU has its own characteristics.
 
The Good Guy said:
I've ran computers without a fan for 10min or more, if you want to claim your cpu theory be my guest. though i doubt you have any evidence to back it up.:)
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Speaking of 'evidence' and computer-experience in general, dare we post a few bits of what could laughingly be called 'advice' you gave in other Threads? Someone who posts the crap you do shouldn't be offering to help anyone, let alone giving 'examples' of things they've claimed to have done in the past.:cool:
 
imsati said:
Speaking of 'evidence' and computer-experience in general, dare we post a few bits of what could laughingly be called 'advice' you gave in other Threads? Someone who posts the crap you do shouldn't be offering to help anyone, let alone giving 'examples' of things they've claimed to have done in the past.:cool:
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10minutes only? That would have been nice when the cheap fan on a Scythe cpu cooler quite on one old build and the cpu ran hot like 74-85 for a few days until a Zalman 7000b arrived.

That same cpu is still running 98 on the old build at this time after the case was recently assembled after I had pulled everything out back in 2006. With the sink itself intact the fan going didn't cook the cpu as bad as originally thought to see it now running like it was when new.

You're thinking back to the old cpus that were soldered right to the board that would pop fast when started without an hsf on.
 
No one in particular. I was simply pointing out that the cpu on that old case should have been toast but was found good. It was later found that the board still in use surprisingly seems to love batteries and wouldn't allow the 200mhz fsb setting in the bios.

That brought the cpu speed down from 2.2 down to about 1.8ghz or the equivalent of XP2500 Socket A model. Running the older cpu running at 74C for several days until it saw the 85C max and not ending a baker's special is kind of like the old ads for Timex watches. :P
 
imsati said:
Speaking of 'evidence' and computer-experience in general, dare we post a few bits of what could laughingly be called 'advice' you gave in other Threads? Someone who posts the crap you do shouldn't be offering to help anyone, let alone giving 'examples' of things they've claimed to have done in the past.:cool:
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Nicely said :)
 
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