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I think check ur smps & power cords working or not..

Posted on Jun 07, 2008

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Optiplex 330 wont turn on shut down went to power back up won't do anything no fans only light is the led on motherboard

your powersupply could of gone bad try to unplug the powersupply and plug it back into the motherboard if this doesnt stop it the part of the powersupplly that tells it to kick on is bad

Dec 12, 2010 | Dell OptiPlex 330 Desktop Desktop Computer...

1 Answer

Chrisaclementsgettying buzzing noise from motherboard and won't start

The "Buzzing" may come from the fans.
There are fans in the powersupply, on the CPU, in the front.

It could be a faulty:
- powersupply
- motherboard

Aug 18, 2010 | Dell Dimension 9100 PC Desktop

1 Answer

Compaq presario SR551OF will not power on.

First, you need to verify that the powersupply is functional. I would first test or replace the powersupply.
Once the powersupply is verified to be working. I will visit the power switch on the case to ensure that the switch is functioning. The can be eliminated by shorting out the ATX pin on the motherboard jumping the system into power-on mode.

If you are not a little techie, this one might be for the experienced.

Good Luck

Nov 24, 2009 | HP COMPAQ Presario SR5510F Athlon 64 X2...

1 Answer

My Gateway GT5252 won't power up but after unplugging the P2 connector on the motherboard it does power alright. Does anyone know what P2 powers and/or have any suggestions? thanks, PCBob

the p2 connector is for monitoring purposes i believe in regards to the powersupply fan, it isnt a requirement to plug in, in this regard but if it boots fine with out the connector then the possibility is there that you might be looking at getting a new powersupply eventually.

Nov 16, 2009 | Gateway GT5252 PC Desktop

2 Answers

I there a replacement for a gx280 SFF powersupply?

Your best bet is to take the power supply out and take it to a good electronics store that has decent computer hardware. That way, you can compare the connections available and also its mounting style to make sure it will work.

Sep 11, 2009 | Dell OptiPlex GX280 PC Desktop

1 Answer

Compaq peserio sr1000 is not booting ,powersupply,RAM

May be your desktop RAM or Motherboard is faulty. so pls checked it from computer store.

Sep 08, 2009 | PC Desktops

1 Answer

I think I have a dead motherboard on my HP pc. How can I tell for sure?

the most easyway is to check your processor,powersupply and memory to the other compatible motherboard,if they do means your motherboard or its bioschip got the problem

Oct 04, 2008 | PC Desktops

1 Answer

Brand new coolmax cug-950b power supply. everything appears to be hooked up correctly, but it wont power up the mother board

the best thing when you can't see power going through your computer is
1. check the obvious once again (the current setting in the back of the ps.. is it 115??
2. replace the powersupply for known good powersupply.. if it works, your powersupply is defective (likely) if it doesn't your motherboard (unlikely), your memory (likely) or your cpu (unlikely) maybe the one defective.

Sep 26, 2008 | PC Desktops

1 Answer


ya definetely....i will help u out in solving the problem.

first of all open the side cover of the i am first instructing you how to check the power supply in the system..

as soon as you open the side cover of the cabinet the remove all the wires coming to the motherboard from the powersupply.then there u can see a 20 pin connector coming to the motherboard from the that bunch of 20 wires shot the green colour wire and the black colour wire...and give the power to the powersupply. if its ok and the fan of the powersupply is working then the smps is ok other wise u need to get it repaired by giving it for chiplevel servicing.....

if powersupply is ok then check whether there are any burns on motherboard if so and even if not u need to give the motherboard for chiplevel servicing.....

Dec 29, 2007 | Dell Dimension 4600 PC Desktop

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