If a computer doesn't turn on then...

[Zero1]

Well, just finished building my computer and I remembered one of the PSU connections to the motherboard (24pin connectors) had a piece of metal missing in there. Can that be a likely source of a compute not turning on?

P5Q-E board has one of those power switches on and it is glowing red which I assume that is suppose to be the colour it glows. Does that indicate that it isn't the board or the PSU?

EDIT: I am trying to run a P4 for a temporary basic until I get the money for my desired choice of processing power. If the manual just says Pentium Dual core and all versions of Celeron, then could that be my problem?

[Kwirky]

As long as your P4 can run an 800MHz FSB, it should be fine. Not sure about the red LED, every other motherboard I've come across uses a green LED to signal that it is getting good power (not sure if this model is different though). What colour wire goes to the PSU pin that is missing metal?

[Amourek]

The LED means the board is receiving power, that's all it means. The missing pin on the power connector is not an issue - it's for the -5V rail that is no longer used in PCs.

[arsalanmustafa1989]

this might be a stupid suggestion but double check all connections are firm, and that you connected the 4pin processor power and finally make sure you plugged in your power button into the correct pins (i have made the mistake before). if it still doesnt work try your components seperately in a working computer to isolate the source of the problem.

goodluck!

[aznangel]

this might be a stupid suggestion but double check all connections are firm, and that you connected the 4pin processor power and finally make sure you plugged in your power button into the correct pins (i have made the mistake before). if it still doesnt work try your components seperately in a working computer to isolate the source of the problem.

goodluck!

yes please double check the pins for your power button, i sometimes flip them by accident

but yes, if you see a led go on on your board then it means it is getting power...


but i have a red and green led on my board...double check to see if ALL leds on the board are lit

[Zero1]

Those are the only 2 leds that are able to project light.

Just finished checking everything and they are all seated properly.

I am beginning to think that it is the Pentium 4. Can it be a possibility since ASUS SAYS that Pentium 4 isn't on the CPU list for support?

[Zero1]

bump.

[Zero1]

Ok, still need help. I just changed the P4 to my brother's Core 2 Duo and the computer still didn't turn on.

I am not beginning to think the PSU is behind this. It gives power to the board but is it possible that it only has enough juice to give light to the power and reset button on the board?

[rchong]

Have you tried laying the motherboard on cardboard?

[jeremyv]

Your P4 might not be compatible with your motherboard.

[CameraBill]

check the orientation of all of the connectors.

check to make sure the jumpers are all there (especially the cmos reset)

[loybond]

CameraBill is right, that's the first thing I'd check. Are you using those Asus Q-connectors or whatever they're called? Check that your power wire is not backward. There's a little downward arrow often times to show the + side of the connector.

Did you plug in the auxiliary power connector? You plug in the 24 pin one, but there's another 4/6 pin one that goes beside the CPU. Post a nice clear pic, maybe we can see what's up. If your video card is newish, it might need its own 6-pin PCI-E power connector, but if you missed this, it'll probably make a shrieking sound.

[kenyu28]

I think it could be your front panel connections. The powerbutton is not wired properly? put a screwdriver near that area to turn on your PC.

If they are quality/working parts, I doubt the parts are your problem (you should at least get the bios screen, then a shutdown)

I think it is the wiring, check it for sure. Unless the powersupply is not working, which is rare unless it burnt out. POST your FINDINGS