This is my first build, based largely on advice I picked up on this forum, so I'm hoping someone will be able to help me resolve this issue.
Parts
EVGA NVIDIA nForce 780i Motherboard
Core 2 Duo E8500 Wolfdale @ 3.16Ghz (stock fan)
EVGA GeForce GTX 260 Core 216
OCZ GameXStream 700W PSU
Stuffed into an Antec 900, with a 640Gb Western Digital Caviar Black and a generic DVD drive hooked up to them.
Problem
When I turn it on, everything appears normal. The motherboard's post code display goes through what I assume is a usual sequence (it hangs on 25 for about 5 seconds, I'm not sure if that's normal) and then I hear the POST beep, and am able to get into the BIOS or start to boot from CD. However, somewhere between 30 and 60 seconds after boot, the red light below the CPU Fan Connector on the motherboard goes on, and shortly after the system powers down. If I try to start it again shortly after this, the shutdown occurs even quicker after boot.
All the case fans and the CPU fan spin up on startup and stop when the system powers down.
All of these seem to me to be indicative of overheating of the.... something, but I'm not sure how to go about testing which piece is overheating, or what to do about it once that has been determined. Anyone have any suggestions?
Parts
EVGA NVIDIA nForce 780i Motherboard
Core 2 Duo E8500 Wolfdale @ 3.16Ghz (stock fan)
EVGA GeForce GTX 260 Core 216
OCZ GameXStream 700W PSU
Stuffed into an Antec 900, with a 640Gb Western Digital Caviar Black and a generic DVD drive hooked up to them.
Problem
When I turn it on, everything appears normal. The motherboard's post code display goes through what I assume is a usual sequence (it hangs on 25 for about 5 seconds, I'm not sure if that's normal) and then I hear the POST beep, and am able to get into the BIOS or start to boot from CD. However, somewhere between 30 and 60 seconds after boot, the red light below the CPU Fan Connector on the motherboard goes on, and shortly after the system powers down. If I try to start it again shortly after this, the shutdown occurs even quicker after boot.
All the case fans and the CPU fan spin up on startup and stop when the system powers down.
All of these seem to me to be indicative of overheating of the.... something, but I'm not sure how to go about testing which piece is overheating, or what to do about it once that has been determined. Anyone have any suggestions?