The infamous computer shuts down problem

[xfiles63]

Here are the specs of my system
Also noticed that gpu gets hot,checked the fan its working.
Power suppy Cooler Master 360 watts
Is the power supply to weak for my system?
Processor
3.45 gigahertz AMD Athlon II X2 250
256 kilobyte primary memory cache
2048 kilobyte secondary memory cache
64-bit ready
Multi-core (2 total)
Not hyper-threaded
Main Circuit Board b
Board: ASUSTeK Computer INC. Crosshair III Formula Rev 1.xx
Serial Number: 104675860000435
Bus Clock: 200 megahertz
BIOS: American Megatrends Inc. 2003 10/21/2011
Drives
159.46 Gigabytes Usable Hard Drive Capacity
120.91 Gigabytes Hard Drive Free Space

TSSTcorp CDDVDW SH-S203N ATA Device [Optical drive]

IOMEGA ZIP 250 ATA Device [Hard drive] -- drive 1
WDC WD1600AABS-61PRA0 [Hard drive] (160.04 GB) -- drive 0, s/n WD-WMAP9F362882, rev 05.06H05, SMART Status: Healthy
Memory Modules c,d
4096 Megabytes Usable Installed Memory

Slot 'DIMM0' has 2048 MB
Slot 'DIMM1' has 2048 MB

[patio]

GPU is not mentioned but off the top of my head i would say the PSU needs upgrading...

[camerongray]

Use software like HWMonitor http://www.cpuid.com/softwares/hwmonitor.html to get the temperature of your CPU and GPU at the point that the machine shuts down - this will show if it's shutting down due to overheating.

[xfiles63]

The GPU is Nividia Gforce 9800
Thanks for the replies I`ll report my findings here in a little while

[xfiles63]

Computer shuts down before stress test is finished.I felt the heat sink its not hot just slightly warm.The GPU how ever is very warm.
I tryed adding a ATI Radeon card 512mb of ram.and I got Port error not accepted or something.
So the fan is working on the GPU what would cause it to get hot
BTW I built this machine last year and havent been using it because of the problems its having.

[xfiles63]

CPU is running at 29* c
Gpu is running 50* c
Mother board is running 50* c

[patio]

Those temps aren't outta range...wrong RAM...both waht you had...and what you added.

[xfiles63]

What would be wrong with the ram?I mean if it was the wrong ram the machine would`nt boot up and run for as long as it does correct?

[patio]

Not true.

[xfiles63]

Well I have tryed to different speeds of ram in it and the machine still shuts off.So Im inclined to think either hard ware failure or a larger power supply is needed.

[Geek-9pm]

Just buy a new Power Supply.
You will always find a use for it later.

[xfiles63]

I already have that in my plans along with buying a new mother board,also I changed the ram from Trident to Corsair knock on wood computer seems to be staying on.Im not happy that this mother board only supports 8gbs of ram so I would like one that I can use up to 32gbs of ram

[xfiles63]

Well spoke too soon after 45 minutes to an hour it shut down after changing the ram.

[xfiles63]

Computer still has the same problem going to get another power supply when I can.So we`ll put this one on the back burner for now.