PC powers off - Changed almost everything

[satriani]

hello,
I am experiencing a very furstrating problem with my pc (details below).

I turn it on, it enters windows and then powers off.
I try to turn it on again, it powers off immediately.
If i let it cool down, it stays on for about 3-5 minutes and then powers off again.
The problem got worst over time, and I think it is temprature related.
So i changed the CPU cooling with a Zalman, I get around 50 celcius at idle, as I see in the bios. (just before it shuts down).
I then changed the PSU with a 600 watt corsair, I also updated the bios.

I tried to check the PC without the GPU but it still powers off after 2-3 minutes.

I removed all ram 2 by 2, the same.

What else can i check??????

Thank you very much!


Processor Name: Intel Core i7-920
Original Processor Frequency: 2666.7 MHz
CPU ID: 000106A5
CPU Brand Name: Intel® Core™ i7 CPU 920 @ 2.67GHz
CPU Platform: Socket B1 (LGA1366 FC-LGA6)
Motherboard Model: ASUS Rampage II Extreme
Motherboard Chipset: Intel X58 (Tylersburg 36S) + ICH10R
RAM: 12 GB = 6 x 2 GB
Memory Type: DDR3 SDRAM
Module Type: Unbuffered DIMM (UDIMM)
Memory Speed: 800.0 MHz (PC3-12800)
Module Manufacturer: A-DATA Technology
Module Part Number: DDR3 1600G



new update (maybe it is not temperature related)

just 1 sec before it powers off::
CPU temp 43 Celcius
MB temp 38 Celcius
NB Temp 55 Celcius
SB Temp 44 Celcius

 

[lonewolf7]

I think the MB is playing games with you. Ok try to take out all the RAM's and then try to boot up the PC. Now hear for any beeps(sound), is it beeping or not ? Provided that you have the MB speakers installed.

Or try to boot into safe mode, and see if it stays stable. Looking forward for your reply.