Computer Wont Boot

LukeTW · 30 Mar 2010 at 13:37

Hi guys, cleaned my Antec 300 case this morning, did a little cable tidying and put it all back together. Plugged everything back in and double checked everything was in.

Put the power lead in and pressed the boot button, it started but then turned off straight away.. If i press the power button again nothing happens :confused:

I have to turn the power supply of via the switch, wait a few minutes then turn it back on, but when i press the power button it does the same thing.

Its like the power supply is'nt giving enough power?

Its a Cosair 520w and is about 2-3 years old

I'm out of idea's guys, anyone shed some light? Ta.

Spokwiththeears · 30 Mar 2010 at 13:51

Have you put the memory in the right sockets? I had a similar problem when I built an i5 system a few weeks ago, the PC would power on then off and repeat. I assumed the two blue sockets nearest to the CPU were the right ones until I read the manual.

LukeTW · 30 Mar 2010 at 14:02

Spokwiththeears said:
Have you put the memory in the right sockets? I had a similar problem when I built an i5 system a few weeks ago, the PC would power on then off and repeat. I assumed the two blue sockets nearest to the CPU were the right ones until I read the manual.

I never took the memory out, only a few fans :confused:

Spokwiththeears · 30 Mar 2010 at 14:05

LukeTW said:
I never took the memory out, only a few fans

Sorry, I'm only trying to help and you didn't actually state that. I can't go off information I don't have.

LukeTW · 30 Mar 2010 at 14:09

Spokwiththeears said:
Sorry, I'm only trying to help and you didn't actually state that. I can't go off information I don't have.

Aye i know, sorry i didnt mean to sound "snappy" at all :cool:

True_Scotsman · 30 Mar 2010 at 14:12

What did you do when cleaning it? Maybe something is underneath the motherboard (screw or something?).

ricky · 30 Mar 2010 at 14:12

Try reseating your ram and gfx card

LukeTW · 30 Mar 2010 at 14:14

Well i have just stripped it and put it all back in... Pushed the button and it turned on

must have missed a cable or something, however thanks for all your replys guys.

Hopefully it will keep working :cool:

Hagar · 30 Mar 2010 at 14:25

Its's easy to nudge cards when doing this stuff or even the processor heatsink, I've done it. Even lying the case on its side can move a component or unmake a connection.

Do you have any system shutdown events set in BIOS i.e. overheating, fan speed?

Are all the fans starting to spin up when the power button is pressed.

All you can really do without a rebuild is to go through and recheck all cards are seated, all power connections are made, reset switches are open (you could disconnect the reset and see if that changes the effect). Check to see if you have power at a spare molex plug even momentarily.

How did you clean it, could fluid have got onto a board or socket accidentally?

TOO LATE, glad youre back up.