System turns off all of a sudden

A

Aanand

Journeyman
Hi
My problem is that the system turns off all of a sudden. When I press the On button it doesnot start. I have to turn off the UPS and turn it on again. Then if I press the on button it starts.
What could be the problem?

OS windows 7. Config: Intel Core 2 Quad 8400 @ 2.66 GHz./ 2 GB RAM./ Nvidia gforce 9400 / Power supply: Model XS-300FB/ UPS: APC 600VA
 
Last edited:
OP
A

Aanand

Journeyman
Power supply: XS-300FB
Size PS2 Single

Input Voltage 230 V

Connectors Mother Board Connector 20+4 Pins - 1
Core Voltage Connector 4 Pins - 1
SATA Power Connector - 2
4 Pin Power Connector - 3
FDD Power Connector . - 1


Voltage
Ampere Rating
Voltage Amperage
+3.3 V - 11.0A
+5 V - 13.0A
+12 V - 9.0A
-5 V - 0.5A
+5 VSB - 1.5A

Prime Source - XS-300FB - Entry Level Power Supply for PC
 
MegaMind

MegaMind

Human Spambot
Before this prob, was ur pc workin fine????
Ur PSU definitely needs a change...
Can u enter the bios?
If yes, enter bios and check the procy temp.....
 
OP
A

Aanand

Journeyman
I have this prob since I bought the PC. As the problem occurred occasionally - once in a week or so i didn't care for it. Now also it occurs like that only. Previously I thought that it was due to power problem at our place.

Process Thermal Margin: 37 C
Motherboard temperature 43 C
MCH temperature 45 C
ICH temperature 82 C
 
MegaMind

MegaMind

Human Spambot
PSU may be the culprit....
now try removing the GPU and connect the monitor to mobo and switch on....
 
OP
A

Aanand

Journeyman
Hi, I also came to the conclusion that the PSU is the culprit.
I have replaced the 300 W Prime Source SMPS with I-ball Sprinter -500 W. Hope My system will work fine.
 
coderunknown

coderunknown

Retired Forum Mod
whats the cost of the new PSU? theres better option available but maybe you went for shopkeepers words. all the best. just hope this last for a couple of years.
 
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