My new motherboard dead after 2 weeks, the same problem as the old one.?

Question

When I was using internet normally, the monitor suddenly lost signal, I wait for like 5 min, then decided to turn off the computer manually by pressing the power button. When I turn it back on again, there isn't any monitor signal on the screen, I took it to the repair store, they did few diagnostic and said that the motherboard was dead, I buy a new motherboard and installed it myself, now after 2 weeks of using it, I'm facing the same problem again, (the monitor suddenly lost signal...).
Anyone have any idea about this?
Thanks all

Answer 1

Try first to run w/ minimum devices. That means detached FDD, ODD, HDD, integrated graphics only (if available). With this set up, you should at least be able to enter the BIOS menu. If nothing happens, check the processor heatsink and make sure that it does not touch any capacitor or other parts of the motherboard.Try also to run the PC with the motherboard unscrewed from the case and not touching anything "electrically" on the case.

Also consider testing w/ a higher rated power supply.

Answer 2

The repair shop should be checking the power supply for problems with any motherboard death, however sometimes this can be intermittent. Also, you may want to check your outlet before you go buying a new power supply as I have seen some bad outlets do this sort of damage. See if you can find a friend that has a multimeter or call an electrician. As always, make sure your computer is grounded using a three pronged wall socket and power cable. I have seen people circumvent this by breaking off the third prong or using a converter (this is a no no).

Oh, and NEVER open up your computer's case without exhibiting proper ESD procedure, because that will fry all the motherboards you can buy.
http://en.wikipedia.org/wiki/Electrostatic_discharge

Answer 3

Try using a second monitor first off.

If this doesn't work, check your video card (if you have one) and make sure that it's working correctly. Download the latest drivers for it.

If this doesn't work, try to get a replacement for your power supply, a faulty one can damage your computer parts.

Answer 4

This sounds like a Very Bad Power supply unit...IF ANY of the voltages it's putting out are wrong or off by too much it's going to fry stuff...whether it be over voltage or under voltage...both will fry!