Help! Nothing happens when I turn on my PC

scottyboy

scottyboy

scottyboy

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I recently did a buget pc upgrade bought from OC and replaced my mobo, mem and cpu..

GeIL 2GB (2x1GB) PC6400C4 800MHz Ultra Low Latency DDR2

Gigabyte GA_965P_S3 (Socket 775) PCI-Express DDR2 Motherboard

Intel Core 2 Duo E2160 "LGA775 Conroe" 1.80GHz (800FSB)

anyway ive just put it together , but when I turn it on nothing whatsoever happens.. the 4 pin 12v is in so is the 24pin and everything else (I think).

Its startign to ****ing **** me off and Ive just broke one of the connectors on my arctic freezer 7 because it took ages to come out.. tho I might be able to force that through the hole.

any ideas on what I can try?
 
Does the pc actually spin up? Fans etc?

If so do you get any beep codes? I dont know if your board has an onboard speaker soooo...If the case has one attach that if you can.

Might be worth trying to re-seat everything, ram and cpu. Then try the ram in different slots etc, and by themselves one at a time.

If you have a different psu handy that will always help.
 
no...nothing happens at all when i press the power button.

i will try reseasting the ram and cpu..do I need to remove and put new thermal grease on whenever i remove the cpu heatsink?
 
Ar there any LED's on the motherboard which may be illuminated, have you checked the fuse in your power lead just in case thats blown.

Can you manualy short the pins on the motherboard just in case its a faulty power switch.

Worst case is remove all your stuff out of your case and test it on your table.

Rob
 
the only thing i notice is sometimes when I turn it on, the cpu heatsink fan spins for a second. but thats all.

RJC said:
Ar there any LED's on the motherboard which may be illuminated, have you checked the fuse in your power lead just in case thats blown.

Can you manualy short the pins on the motherboard just in case its a faulty power switch.

Worst case is remove all your stuff out of your case and test it on your table.

Rob
Click to expand...

Im not sure how i do any of that.. :o

how do i check the fuse in the power lead? I will try another power lead, i think i have a spare..

I dont know how to manually short any pins.

How can I test it on a table? you mean take it out, put it on a table and then plus everything in? what difference would that make?
 
Simple enough, you're not getting the power in. As stated check the fuse, and make sure your PSU is actually doing something.. d'you have a multimeter?
 
Benjarghmin said:
Simple enough, you're not getting the power in. As stated check the fuse, and make sure your PSU is actually doing something.. d'you have a multimeter?
Click to expand...

no i dont have one of them and i dont know how to check the fuse.

I dont think it would be the psu...I have an antec sonata II case that comes with a 450w psu which ive had for a year now and never had any problems..that psu would be enough to handle this right? tho i will try a differnt power lead.
 
scottyboy said:
the only thing i notice is sometimes when I turn it on, the cpu heatsink fan spins for a second. but thats all.



Im not sure how i do any of that.. :o

how do i check the fuse in the power lead? I will try another power lead, i think i have a spare..

I dont know how to manually short any pins.

How can I test it on a table? you mean take it out, put it on a table and then plus everything in? what difference would that make?
Click to expand...

To check your fuse in your power supply lead and you don't have a multimeter, the simplest way is to remove the fuse from the plug in the PSU lead and replace with a new fuse of the same capacity e.g. 3amp, 5amp or 13 amp, then retest. If you hear a bang on the retest, you have probably got a short circuit somewhere.

To short the pins regarding the power button:
Disconnect all power to your PC.
Remove your wires from your case power switch at the motherboard end
Reconnect power to your PC.
Carefully put a screwdriver between the 2 pins on your motherboard that your power switch leads where previously connected to (assuming they were connected to the correct pins).

You will only need a momentary connection between the two pins (i.e. you don't need to keep the pins connected to have a powered up PC).

If this doesn't help, it rules out your case power switch as a problem.

If you get hold of a multimeter, then post back and we will let you know how to check with that.

HTH,
Cambofrog
 
ok heres an update...

changing the power lead made no difference. and i disconnected everything cept the 2 main mobo leads and hdd and nothing happened when i turned it on. theres also a burning smell...tho its really hard to tell where its coming from probs the psu.

then i replaced my new mobo with my old asus k8ne one and turned it on. The green light on the mobo (the gigabyte doesnt have any leds) came on but when I pressed the power...nothing happened.

something should happen right, even if theres no memory, graphics card or nothing right? should get beeps or something..

soo... does that mean its definitely the psu and i need a new one?? I dont get why it would fry, 450w is easily enough isnt it.
 
Cambofrog said:
To check your fuse in your power supply lead and you don't have a multimeter, the simplest way is to remove the fuse from the plug in the PSU lead and replace with a new fuse of the same capacity e.g. 3amp, 5amp or 13 amp, then retest. If you hear a bang on the retest, you have probably got a short circuit somewhere.

To short the pins regarding the power button:
Disconnect all power to your PC.
Remove your wires from your case power switch at the motherboard end
Reconnect power to your PC.
Carefully put a screwdriver between the 2 pins on your motherboard that your power switch leads where previously connected to (assuming they were connected to the correct pins).

You will only need a momentary connection between the two pins (i.e. you don't need to keep the pins connected to have a powered up PC).

If this doesn't help, it rules out your case power switch as a problem.

If you get hold of a multimeter, then post back and we will let you know how to check with that.

HTH,
Cambofrog
Click to expand...

I tried a new psu lead and no difference.

I tried to short the pins...but again there was no difference.
 
Cambofrog said:
I don't know if the PSU is definately the problem, but that is a good recommendation for a PSU. I am going to get the 620w version for my new build. :)

Cambofrog
Click to expand...

I dont know how I can tell if its anything else? I tried booting with absolutely nothing connected except the cpu (minus any heatsink) and the psu leads plugged in. And thats with 2 different mobos with two different cpus. nothing happened on either so it has to be a psu problem hasnt it?
 
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