PC powering down, help!

seldNofSparta

seldNofSparta

seldNofSparta

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Joined
11 Aug 2009
Posts
318
Location
Cambridge
I am trying to build a PC for my little brother for this christmas, and am literally in the middle of putting it all together, however I have hit a problem that I just cannot figure out.

The individual parts are as follows:

Thermaltake Lanbox Lite
OCZ StealthXStream 400watt PSU
2GB OCZ Gold DDR2 800mhz (2x1gb)
Intel Core 2 Duo E6600 2.4ghz Conroe
Coolermaster Geminii S /w Arctic cooling f12 120mm fan.
Gigabyte GA-G41M-ES2L MATX Motherboard
NVIDIA GTX 260 OC


Anyway, the problem is:

When i hit the power button, everything works fine, it boots up, I see the BIOS post etc, everythign working fine....however....after anywhere between 5-40 seconds, it will shut down, as in completely power down; fans stop spinning etc.

I took out the graphics card, and tried the onboard....same thing.
I tried different variations of the memory...same thing.
I took it completely out of the lanbox and ran it on my desk...same thing.


Am I missing something here?

If anybody can shed some light on what this might be I would much appreciate it as I wanted to give this to him tomorrow morning!

I will be checking this tonight to see if there have been any posts :)

Thanks OCUK.
 
Is the CPU fully compatible with the board, Dost it need a BIOS update the run the CPU. i have had that problem myself
 
I just noticed, if I leave it for a while and then:

press the on button, it will stay on for about, 30 seconds or so,

then once it power down, I hit the power button again,

it only powers up for several seconds and continues to do this.

so if i leave it to stand for a bit it tends to last longer
 
aha, I just managed to get into the BIOS long enough to realise it is posting seriously high temps, going up roughly 10 degrees every second, which im guessing is why its shutting itself down....but the heatsink itself isnt hot at all....


so this is a problem with the bios? or...
 
silly question but your using compound on cooler? lol.

take off the cooler touch the CPU and turn it on if CPU dose not get hot before shout down then BOIS or temp probe fail.
 
agreed with Dave0w you may not have the thermal compound on the cooler also it could be a mobo issue with the temp probes resulting in the shut down
 
You guys were right, i didnt have 'enough' thermal paste on my cooler, there was a fair bit on the cpu, but it didnt seem to 'stick' to the cooler as well; as i only applied it to the cpu itself, and not both the cpu and cooler.

Thank you all for your swift replies, you have been a real help!

Merry Christmas all, best wishes.
 
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