No, there probably is no onboard video - thats a serial port with (9) male connector pins showing. Video ports have 15 pins in 3 rows..
Is the video card being overclocked ? If so, reduce or eliminate all overclocking.
Is the CPU or RAM being overclocked ? If so, reduce or eliminate all overclocking.
I just reread your last post ! Power supplies that turn themselves off in 5 seconds is almost always due to the heatsink not properly contacting the CPU die or heatspreader. You may have dislodged it when cleaning the dust out.
First, get some heatsink compound, preferably Arctic Siver 5
. It's expensive, but is only a small fraction of the cost of a new power supply. Remove the heatsink & fan (HSF). Clean the old heatsink compound off both the underside of the heatsink and the CPU top, preferably with rubbing alcohol and a soft cloth or tissue. Place a SMALL dab of heatsink compound on top the CPU die or heat spreader. Replace the HSF. This may be easier (or not) by removing the fan first and then replacing it after the heatsink block is reattached to the motherboard. BE CAREFUL if you need a screwdriver to reattach the heatsink. A slip could cause the tool to dig into the motherboard and turn it into an expensive doorstop.
Reattach any cables you may have had to remove to get to the HSF. Turn on the power. It should not shutdown, but, if it does then take off the HSH and try to be more careful putting it back on.
When to computer stays powered up proceed to the next section to check out the machine.
Try to find another video card to use long enough so can check everything else out:
To conclusively test the RAM download Memtest86
. It comes in an ISO file format that can be burned to a CD using Nero, Roxio Easy CD Creator or the free CDBurnerXP Pro
. This will make a bootable CD, so make sure the BIOS is set up to try to boot from the optical drive before it tries to boot from the hard drive.
Reading CPU and motherboard temperatures can usually be done with the free version of Everest Home
. When it is running look in Computer > Sensor. The CPU temp should never exceed 55C. A really tough CPU test is Prime95
. Monitor the Everest temperatures closely when running Prime95.
Also in the Sensor section take a look at the power supply outputs. At all times the readings should be withing +/-5% of the nominal voltages:
+3.3: 3.135V to 3.465v
+5: 4.75V to 5.25V
+12: 11.4V to 12.6V
You did say you swapped out the power supply so this really shouldn't be the problem.
Perhaps there are errors in the file system. From a command prompt type 'chkdsk c: /f /r
'. It will ask you if you want to schedule a scan at the next restart - answer with a y
and then restart the machine.
Your hard disk can be checked with Hitachi's Drive Fitness Test
. It comes downloadable in an ISO image file, too. It will check the drive mechanics rather than the file system and won't cause any data loss.
Edited by pascor22234, 21 April 2006 - 03:18 PM.