computer shuts off when i turn it on!

Homemade / Intel core 2 quad 1.66
May 5, 2009 at 12:59:43
Specs: Windows vista 32 bit, 4 gb
I recently moved to a new house and set up my desktop and turned it on and got into the desktop. I changed the resolution to max because i have a 32in lcd monitor, then it shut off completely. I retried starting it but it kept shutting off and now i cant even get into the desktop anymore.

See More: computer shuts off when i turn it on!

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#1
May 5, 2009 at 13:12:04
Open the case. Is there any dust buildup, especially near the CPU fan? If so, clean it out with a can of compressed air. Don't use a vacuum because it can cause static electricity buildup that could damage your motherboard and any devices. There may be dust causing the CPU to overheat and shut itself down to prevent overheating, either that or a fan is not operating like it should. There are also other possibilities, such as the power supply not supplying the right current and thus the motherboard is shutting itself down to prevent problems.

What's the brand and wattage of your power supply?

WinSimple Software
CompTIA A+ Certified


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#2
May 5, 2009 at 19:35:25
tried that but still the same thing... Could the cpu been damaged in travel static elec. maybe got it???

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#3
May 5, 2009 at 19:36:55
power supply is a corsair 650watts

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Related Solutions

#4
May 5, 2009 at 20:29:42
Corsair is a decent brand, so you shouldn't be having problems with it. I would remove the RAM and then trying to turn it on. If it still cuts off without giving a beep code, I would remove any PCI/USB devices. I would even remove the video card to rule it out. Basically I would remove components until the system stayed on, not forgetting to ground yourself and to unplug the unit when working on the inside.

I don't think it's possible for static electricity to damage the CPU while in transit.

WinSimple Software
CompTIA A+ Certified


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#5
May 6, 2009 at 01:28:25
Dose the Boot screen Shows before it shut of?

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#6
May 6, 2009 at 06:41:48
It boots until you have the option for safe mode and all that then when i make a selection it begins to load then the blue screen apears then it restarts. When i try safe mode it hangs up after the big long screen of drivers that load.

But tonite i will remove components and see what happens, thanks for all the imput!


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#7
May 6, 2009 at 21:15:24
I was under the impression that the computer would shut off immediately upon turning on. Remove all PCI/USB devices and try to boot again.

WinSimple Software
CompTIA A+ Certified


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#8
May 7, 2009 at 05:50:54
removed everything still does the same thing, removed ram but just sat there and beeped so put ram back in and rebooted and same problem. i cant see what the blue screen says because its to quick and it wont let me pause it either.

im ready to smash it with a hammer and throw it in the street, i invested probably like 1200 into the machine and new it does this.

intel dual 2 core quad core 1.66
pny 512mb xe28 performance model
corsair 1gb chips (4gb total)
xfx nforce 780i sli 775 socket
corsair 650 power supply


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#9
May 7, 2009 at 07:33:20
Try taking out 3 sticks of RAM & see if it will boot with just one. Also, go into the BIOS & double check your CPU temp...maybe the HSF got knocked loose during shipping & the CPU is overheating.

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#10
May 7, 2009 at 09:11:45
Yes the fan was loose but now it is secure again but the cpu is very hot all the time, its i think around 100f?

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#11
May 7, 2009 at 10:05:57
I think you just found the problem. The fan may be secure again, but the HSF is not working correctly. You have to remove it, thoroughly clean off the old thermal paste, and apply a small amount of new thermal paste.

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#12
May 7, 2009 at 10:07:45
100F (approx 38C) is normal, 100C (212F) is extremely hot & will cause the system to automatically shutdown to prevent the CPU from burning out. Are you sure the temp is 100F & not 100C?

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#13
May 7, 2009 at 10:41:16
I missed that-I thought it was 100 degrees Centigrade. As jam said, 100 degrees Fahrenheit is OK. In fact, the computer would probably have shut off before the cpu got to 100 degrees Centigrade. How did you check the temperatures ?

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#14
May 8, 2009 at 11:16:58
i can see the temps in the bios, so go and get some new thermal paste and try it again? You really think the old past on the cpu could be causing overheating???

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#15
May 8, 2009 at 13:29:15
You still have not clarified whether it's 100F or 100C.

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