My comp turns on for 5seconds and turns off or dosnt turn on at all

[anand1]

It seems as u have said that u have checked your Power Button and working fine. Go for a proper dusting with an Air blower and see if the problem persists or not.

If it is present then it smells as if the North Bridge Chip of ur MOBO might ge faulty....diagnos ur Mobo with a good technician

 

[Matthew DeCarlo]

It seems as u have said that u have checked your Power Button and working fine. Go for a proper dusting with an Air blower and see if the problem persists or not.

If it is present then it smells as if the North Bridge Chip of ur MOBO might ge faulty....diagnos ur Mobo with a good technician

If what is present? What about this is pointing to the North Bridge out of curiosity?

 

[anand1]

If what is present? What about this is pointing to the North Bridge out of curiosity?

The mobo is divided into North Bridge and South Bridge and there is an individual chip which performs a specific task of it. Like peripheral device contrl. Port controller, power management , Bus controller etc. North Bridge is one of them

 

[Matthew DeCarlo]

I am sorry but I'd have to strongly disagree with you anand1. That doesn't seem consistent with the symptoms at all. Rarely do I come across a defective motherboard. Everything Osiris has listed points directly to the PSU. Proprietary PSU's are cheap and unreliable, not to mention the fact that it's a Pentium 4 based system which implies years of use. Furthermore, I suspect a faulty NorthBridge wouldn't cause system fans to spontaneously slow down nor do I suspect it would cause dimming lights :/. On a checklist of potential issues I'd say a defective PSU far exceeds the likelihood of a defective motherboard, not to mention the fact that it's a fraction of the cost and effort to replace!

After digging around for a while I cannot find any exact information on your motherboard or PSU, Osiris. However, I would be willing to bet (after looking at the rest of your systems components and specs) that your power supply is probably somewhere around 250w, and I'd also be willing to bet that your motherboard requires a 20 pin P1 and likely a P4. With that, I feel confident in suggesting this PSU as a replacement for your stock PSU.

I could be wrong of course, I am working off of probability here since you haven't posted your Serial Number.

 

[whitelatte]

well, PSU is the main suspect here for me too. Very seldom that i heard this caused by motherboard (not like i am saying there is no possibility)