PC Automatcally Shutdowns!!!

[girishpaiv]

This problem has started since a few weeks!I dont know why but my pc just shutdowns automatically!
The load due to which my PC Shutdowns now,was working perfectly,without any problem a few months back!!

My System is almost 2 yrs old:
Mainboard : Intel D101GGC
Processor : Intel Pentium 4 506J @ 2666 MHz
RAM : Dynet 1024 MB (2 x 512 DDR400, 3-3-3-8)
Video Card : ATI RADEON XPRESS 200 Series(on board)
Monitor : Samsung SyncMaster 732n+
Hard Disk : SAMSUNG HD080HJ (80 GB - SATA 2)
PSU : CIL-OODYSSEY AUGUST 2007 450W
+5V ......34A
+12V .....14A
-5V ........0.5A
-12........0.8A
+3.3V....28A
+5VSB....2A
TOTAL......450W

PLZ HELP GUYS !!

[comp@ddict]

Well, it's starting.

So mobo failure isn't there.

Well, it's a PSU fault(kharab ho gaya)

It happens sometimes

[girishpaiv]

Guys,can u pls suggest some good softwares(or methods) to control fan speeds?

lemme try controlling temp!!pls

[RMN]

Speedfan

[Krazy_About_Technology]

Ya its definately a SMPS fault. If motherboard had any problems, it wont start up.

[gopi_vbboy]

if u changed to new ram recently....check whether its frequency is supported by ur motherboard

[JojoTheDragon]

Change your SMPS.