Any Computer Issue

Saturday, January 26, 2008

Newly assembled PC not powering on.

Bought the following components on 23rd Jan 2008 from Lamington Road:

Intel DG33FB motherboard (Rs 4500)
2 GB transcend 800 mhz ddr2 ram (Rs 1700)
Intel core 2 duo 1333 mhz 2.33 ghz e6550 (Rs 7000)
logitech keyboard (Rs200)
Frontech optical mouse (Rs 150)
Iball cabinet Super engine x (Rs 1450)

The newly assembled PC wont power on. It seemed that the power supply was bad as nothing moved when the multimeter was connected. However the flea power on the motherboard was on.

While testing the power supply, you have to short two cables to check if the fan starts rotating. This is how you check a power supply without connecting it to the motherboard. One should not power on the SMPS without connecting any load to it. Connecting CD DVD as load wont help because the motors do not rotate continuously.

Suspicion pointed towards the way the front panel connectors were connected. The mistake was with the power switch connector. It was connected to the power led connector pins. This meant that when the power switch was pressed, the pins 6 and 8 weren't shorted and the circuit was never complete. Changed the position of the front panel power switch to the right pins on the motherboard. Issue resolved.