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new pc boots up but shuts down quickly

P

psinglar

Junior Member
hello i just built a pc and well the problem is that it boots up and well it runs some tests then it shuts off after tests i dont hear any beeps or see any error messages,i dont know whats wrong can someone please help.
specs: P4 630
1gb ddr 400 3200
asus p5gd1
chaintech 6600gt
500w aspire power supply
 
Sounds like a thermal issue. Your thermal grease might not be spread out across the whole chip, or not making good contact with the heatsink. Will it even get into the bios and stay in there without shutting down? What's the chip temp?


Or it could be an issue with those tests. I'm figuring the tests are stressing the CPU which is fine, but that's heating it up and I bet you're running over your shutdown temp.
 
thats the thing i cant see temp or get into bios ,i put 2 small drops of artic silver5 (size of a grain of rice)i spread it around with some plastic then i used a razor to comb it ,so i dont know
 
Maybe the cpu fan is plugged into the wrong header? I know most mobo's will not boot if they detect the cpu fan is unplugged.
 
What tests are you running?
Also, have you tried holding the Delete key down during boot to get into bios?
 
yes i have tried to hold the key down but it shuts off after it runs some tests last test i see , its checking ide it says detected and poof it shuts down
 
the cpu fan is plugged in as the fans spins fine ,i have no clue what it can be the sata drive is plug in correct and also the ide drive as well i tried taking away the ide drive and still same ,and did the same with the sata
 
I'd check to make sure the cpu, and video card fan are running, also, I would check All your power connections as well.
 
the fans are running fine this pci express card doesnt have a power connector the power cables are fine i dont know what can be the issue i can surely bet its just something very stupid as usual but man this is aggravating ,i can see the asus logo come on ,memory check ok ,chip frequency but as soon it runs test thats where it cuts off
 
ya thats all i have is 1 stick of ram which is 1gb and it works fine on my other machine and i have tried the ram from another pc and a no go i will try putting ram on other slots
 
Originally posted by: psinglar
the cpu fan is plugged in as the fans spins fine ,i have no clue what it can be the sata drive is plug in correct and also the ide drive as well i tried taking away the ide drive and still same ,and did the same with the sata
Click to expand...

On some motherboards, you have to plug the cpu fan into the correct header, so it senses the presence of the fan. If you plug it into the wrong header or into a molex connector from the PSU, then the board may believe you do not have a CPU fan installed and will shut itself off. It's sounds like you probably have it connected properly, I just wanted to clarify what the previous poster was getting at.
 
The other thing to check is that all of the motherboard standoffs are in the correct location. If you have a standoff in the wrong location it could be causing a short.
 
Originally posted by: D1gger
The other thing to check is that all of the motherboard standoffs are in the correct location. If you have a standoff in the wrong location it could be causing a short.
Click to expand...
Great points, tho I don't think he would get any Post at all, were it shorting.

 
yea i dont know ,supposely this ram is compatible its a rosewill 1gb stick of ram 3200 and it goes to ide scan and just shuts off
 
Originally posted by: D1gger
The other thing to check is that all of the motherboard standoffs are in the correct location. If you have a standoff in the wrong location it could be causing a short.
Click to expand...


The thing there is that if the mainboard is grounding on the case, then the machine usually won't even turn on at all.

Try holding down INSERT as well. Some mainboards, it's not DELETE, but INSERT.

You could try to take out one piece of hardware at a time and try to boot again. That'll let you know if there's a hardware issue, or if it's still a tempature/fan thing. Eventually you'll fix the problem, or have removed all the hardware again, which was my next suggestion anyway. Try reassembling the machine and then try a boot up again with the barest of hardware again. (cpu, memory, vid card, and a keyboard, and that's it).

Maybe try your 1 dimm in different dimm slots too. I'm just spitballin here now.
 
Well, maybe it is shorting then, only 1 way to know for sure/ put the board on cardboard, and try it there I guess.
Tho, I would first try booting without any hard drives, optical drives, or pci cards installed, and see what gives.
 
ok i will try putting the board on some cardboard and see if it works ,i will post results and thankyou toeveryone for replying be about 15 min
 
well the cardboard thing worked mobo psu and chip and memeory and vcard worked fine i was in bios and it didnot cut off ,i think my heat sink was not seated well ,i guess if it happens again then it must be the case causing a short but for now im thinking it was heatsink thanks to all who replied im a lil concerned with this prescott core since well it seems it runs hot ,any suggestions on how to keep this cool ,i didnot go amd because i need multitasking ,what temperature should i worry at, this current pc here runs at 44 -47 i dont know what else to do to cool this down and this is a northwood 2.8 so makes me think damn if i cant keep this cool then how the hell can i keep this prescott cool
 
I don't think the heatsink was shorting out, I think the other gent nailed it, tho It's hard to believe it would post at all shorting out.
44 to 47 isn't too bad, but yes, a bit too hot.
As long as it runs well at stock settings, it will prob be okay, and the thing to remember is that Software is NEVER reliable for temp readings, and or for voltage readings either. It just gives you some sort of a clue as to base what you have going on.
 
I am probably the worst person to ask that 🙁
I run a complete water cooled system,( have been for over 5 years), and I chill my water with a Dehumidifier, to 49f.... So you see, I am not an air cooler.
I will say this tho/ good airflow across the board/ram, and Great High Exhaust out the back, will take you a very long way.
 
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