Overclocking HELP !!! PC wont boot after oc whent wrong :S

I have just oc my i5 750 to 3.7GHz, i was running prime95 to check stablity and was getting temp of about 75oC. i left it for about 3 min when i came back it had crashed when i tryed to boot it up again it would ent even post. i have done some reading and so then tryed to reset the cmos. but this didnt help and it still will not boot.

mobo:gigabyte ga-p55m-ud2
cpu: core i5 750
Ram:Corsair Memory XMS3 4GB DDR3 1600 MHz CAS 9 XMP Dual Channel (2 sticks of 2gb)
power supply : antec erthwatts 650w

i have tested the power supply and it worked when useing a mobo with a 4pin cpu power
The hardrives and dvd drive, grapics card work

Please could u give me some advise and drection as i have a small budget for replacments :S

any help would be really great

eNcoRe

 

What did you do to reset cmos ??

 

i have tyed taking out the power cable then using a jumper on the jumper pins whating for about 30secs removing the jumper then tring to boot up the pc, i also then tryed it with the battary doing the same thing

 

Gigabytes are usually very robust.

If the CMOS reset dont work I would look at the board or CPU fried. Was the thermal protection for the CPU active when you overclocked it???

I know when my P55-UD3 can't handle the overclock it re-boots with basic settings.

 

This is going to sound stupid, but you are turning your computer on with the jumper on the pins to reset your bios, right? From your description it sounds like you have put the jumper on and then just waited 30 seconds, before switching it back and then powering up.

 

might think i got that rong ill re try it thanks

 

Have you made sure the battery was out of the mobo when you reset the bios too? If not give it a try.

 

I would change the jumper remove battery and hold the power switch in for 30sec and then put all back and try to reboot.

 

right i have just tryed to reset the cmos again, i had no luck and it didnt work. also when i turn the power on i dont even get the cpu fan even try to spin or the ram phase light come on wich are on the mobo

i would be great if u could give me some advise on what i should replace ore what i should do before u get to that point

 

I find that just removing the battery for 20secs does the trick!

 

encore, does literally nothing happen at all? Are any lights lit up when the PC is turned off?

And...do you remember the voltages that you had set when it was last running?

 

If the PSU is ok then it sounds like the mobo's fried if there's nothing happening at all. It might be work checking all the connections, give the a wiggle just to make sure that they are seated properly.

 

um yer well sothing dose happen when i worked out that i hadent pluged in the swich.

but it was doing sothing after i did that it was in ca cotunes loop to turing its self off and on again before it got to the post screen.

so i have ad a look at the mobo and cpu, there seems to be no bering or coolour change on the cpu hower there seems that a chip or transister had burnt out. this would also exsplane why i could hear a fant hissing sound at one point.
here are some pics bellow



i was wandering if i would be able to return the board to scan and if you lot could give me any advise on doing this

o i have had the bord since about july

im sorry for any bad spelling hope u can help

 

When you say transistor/ capacitor do you mean one of them has popped?

And as for your spelling use opera it's got a brilliant spell checker on it. I'm dyslexic and it works a treat for me.

 

thanks for the advise about the dyslexic anywhys as u can see in the pic on my last post its is deformed

as shown in the pic below (so i need some advise on how and if i can return it to scan )

 

Can you give us some info on what voltages you were using when this happened? That at least will give us some clue as to what caused this to happen.

 

I would say the mobo is buggered if its with in the warranty contact Scan and talk to them about a RMA.

 

dose any one have an i dear if they will still RMA it as i have had it for about 5 months

 

Yep, they'll still RMA it.