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Putting together new computer, stopped working bizzare

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by vaderzz

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Hey there

I recently just bought some new parts to piece together a new computer, and something bizzare happened.

I plugged everything in... which is an OCZ 1010 PSU, a P5N32-Plus Motherboard, 2 8800 GT video cards.. and 2 HDD's... I powered it all up and the fans came on but the HDD's didnt.. and nothing came on the screen.

So I took out one of the video cards... and after that the PSU wouldnt even come on.. and hasnt since.

:| I dont know whats wrong.. the I know for sure the PSU is still fine cause I'v tried my old one and it doesnt work on the board either. however there is this little LED light that comes on when the PSU switch is on "On".

And goes off when its on "off"... any suggestion? none of the fans are coming on for my PSU, CPU or video cards... and nothing happens when I hit the power button. I'm thinking it has something to do with the cord from the power button to the board?

Any help would be appreciated :)

7 replies

by seanferd

PSU set to proper voltage (115/230) for your application?

Got all the RAM slots filled? Try it with only one pair. I've read about this board being really picky with what brand of RAM is used (esp. w/ 4 slots filled) and that it heats up like an oven. If it gets hot really fast, it may be shutting itself down.

You're saying here, though, that the PSU won't even come on (fan? LEDs? power?), but that it lights up a board LED, and then you go on to say it is fine.

If a different PSU won't run the board at all either, it may just be the board. Or something just ain't grounded.

If you disconnect everything except the board, will it run? If it does, just try one GPU with no drives, no sound, nothing but the mobo and the GPU. Only 2 sticks RAM. Hook up the monitor and see if you can get it to POST. No? Now try the old PSU. Nothing? Now try your new PSU on a different machine. If it works just fine, it's probably time to send the board back.

Other than that, let's see what anyone else might have to say. Check out some hardware/gamimg forums while you're at it.

by robo_dev

Well, if you have the mobo out of the case on the bench, with only the PS plugged in, (no memory, drives, or anything but the processor)...and you short the 'power-on' pins on the mobo with a screwdriver, it should start to boot and give you bios beeps.

if this does not work with either PSU, then your mobo has failed (assuming that both PSUs are good).

Double check the PSU connections on the mobo and the PSU...in case a pin got pushed back or bent.

by mg_roberts

if its not the PSU its either CPU or RAM, considering the unlikeliness of a CPU actually dieing i would say try 1 stick of RAM at a time, (if you are using 2) then try new RAM.

can you hear the HDD's spin up? or can you feel them spinning if you put your hand on them? if no, then it might be a dead motherboard. but if all the fans come and the HDD spins up, then its definitely RAM.

by tintoman

I can't really say I agree with much that has been said about this problem, furthermore it is beyond belief to me that anyone has suggested you should "short" the power switch pins with a screwdriver!!!
If you must test it in that way at least use a jumper or properly insulated wire.
This is not likely to be caused by RAM if it was you would get some very audible beeps but the fans would still run, the same applies with a faulty or incorrectly seated processor, the scren will be blank but the CPU and case fans will still run.
And that only really leaves the motherboard itself doesn't it?

by mg_roberts

whats wrong with using a screw driver? you can use your tongue if you want. there's no amps running through so its not going to hurt you or short anything. and its a momentary switch, so you can't use a jumper anyway.

as for beep codes, you'll only hear beep codes if the speaker is plugged in, and if he's using a screwdriver to turn over the momentary switch, then chances are there is no speaker plugged in, therefore, no beeps.

by david.wallis

dont know why shorting with a screwdriver was suggested (yes i do it myself!) but you have already prove dthe switch not to be faulty because the fans did spin up to begin with!

make sure the CPU and RAM are both compatible with this board. SOme boards only work with some manufacturers and models.. look in the manual there should be a RAM section with partnumbers that work.

apart from tht take it all out of the case and try it on the desk :)

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