Computer shuts on and off

[ScottL4784]

I have read quite a few of these but there never seems to be an answer. i just got the system in my sig in today, got it all put together running great. i was installing software on my computer and went to a random restart. when it goes to boot back up it comes on for about 3 seconds then shuts back off. i have tried to reseat the cpu, clear cmos, all power connectors r hooked up. does anyone know something im missing here? i really want to get to gaming!

 

[chookman]

Sounds like overheating or not enough power

 

[ScottL4784]

ok so i called gigabyte and they told me to start with just the mobo and and 1 item until i find the problem. well when i add the cpu it has the problem. however i dont know how i can tell if it still boots, since the cpu makes it restart. any ideas?

 

[ScottL4784]

does anyone have an idea i really want my computer

 

[badge]

In BIOS set the memory voltage to 2.1-2.v or Mfg. Specs. You will need to adjust the memory speed to PC8500 and set the memory timings also. Use one DIMM in slot 1. Ater you load the OS and MB system drivers, install the second DIMM.

 

[ScottL4784]

i cant get into the bios. it only comes on for 3 secs total.

 

[badge]

You likely have a short. Try unplugging everything except the CPU,1 DIMM RAM and the video card and boot the system with only CPU, RAM and video card and get to BIOS. The HD, optical drives, sound cards, etc., unplug it all. If the system still won't post, your MB may be shorting out the system. It likely a short OR a bad PSU.

 

[ScottL4784]

could it be the cpu? b\c as soon as i put the cpu in it cuts off and on.

 

[badge]

Do you have the 4/8 pin 12v power supply lead plugged to the MB supplying power to the CPU?

 

[badge]

See directly above.

 

[ScottL4784]

yes i have both and have tried them both.

 

[badge]

Have you smeared thermal paste on the CPU connectors? That would short out the CPU, if any TP is touching the 'pins' or 'socket'.

 

[ScottL4784]

the last time something came on screen was something about a bios updating or restoring. then it cut off and nothing would come up as it only came on for 3 seconds

 

[ScottL4784]

oh and no have havent gotten on any connectors, but ill double check

 

[badge]

Are you using the stock Intel haetsnk and fan that came with the Q6600? If so, you might check the mounting legs and be sure each leg is snapped firmly into place causing the heatsink to make complete contact with the CPU.

 

[badge]

BIOS on the screen? I think I would reset the CMOS jumper about now. In you MB manual...unplug the system from the wall, remove the battery and reset the CMOS jumper to default the BIOS.

Did you try to update the BIOS already?

 

[ScottL4784]

im using a ultra 120 and i tightened it as far as the screws would allow me. i dont know if this is b\c the cpu wasnt all the way down or not, but i unlatched the cpu for just a sec to see if it would come on and it didnt cut off. i dont know if it booed or not though.

 

[ScottL4784]

ive reset the cmos several times to no avail.

 

[ScottL4784]

do i need to remove the batery as well as do the jumper?

 

[badge]

Did you fit the CPU in the 775 socket properly. It only fits properly one way. Instructions in the MB manual.

 

[ScottL4784]

yeah its in correctly

 

[badge]

Yeah, unplug, remove battery, reset jumper.

 

[ScottL4784]

ok let me go find a jumper ill brb

 

[badge]

when you mounted the MB, did you use the brass 'risers' that hold the board up elevated from the case chassis? i don't know, it sounds like you may have a short.

 

[ScottL4784]

ok so i did both and neither worked