computer turns of after overclocking

[jorsmie123]

So i overclocked my intel core i5 760 to 3.5 ghz and now when i turn my pc on it loads the os (windows 7 ultimate 64 bit) it says starting windows and then it turns off. anyone have a sollution?

pc specs:
cpu: i5 760
gpu: hd 6950
ram: kingston (2x4) 8gb
mobo: msi p55-gd65
cpu cooler: corsair h80i
psu: corsair 450 watt
os: windows 7 ultimate 64 bit

 

[Dom_79]

Try increasing your voltage in very small increments (like .01) until it is stable enough to run windows. Then stress test with your preferred stress testing program and increase (if needed) by the same small increments until stable.

 

[jorsmie123]

Try increasing your voltage in very small increments (like .01) until it is stable enough to run windows. Then stress test with your preferred stress testing program and increase (if needed) by the same small increments until stable.

hey, the current voltage is 1.401 and i can only change it to 1.413 should i do this. Sorry but i'm a noob at overclocking and i don't want to ruin my pc.

 

[Dom_79]

WHOA! 1.4 is very high. I'd recommend keeping voltage at or below 1.3 if you can. What are your temps at 1.401? Your PC might be shutting down due to thermal throttling/protection.

What have you modified in bios to get 3.5?

 

[jorsmie123]

WHOA! 1.4 is very high. I'd recommend keeping voltage at or below 1.3 if you can. What are your temps at 1.401? Your PC might be shutting down due to thermal throttling/protection.

What have you modified in bios to get 3.5?

Temperatures on 1.4 were around 45°C I now changed the voltage to auto and the temperatures are now between 25°C and 30°C the pc doesn't shut off automatically. So it seems to be fixed but I read a lot about that changing to auto voltage may give your cpu too much juice and fry it. Is this true because it seems to be working fine for me?

I changed MHz from 133 to 160 and now it is running at 3.5GHz.
Also at load I get a maximum of 50°C this seems very high with a h80i.

 

[Dom_79]

Contrary to popular belief, all in one coolers such as the H series from corsair (I use the H100i myself) do not provide better cooling than quality air coolers. 50C is quite alright at load but what are you using to put load on the CPU?

Also considering the temps you mentioned are so low with the amount of voltage you are running I must ask what you are using to monitor temps?

The auto-voltage CAN provide significantly more voltage than you may want. This would be something else you would want to monitor while under load during stress testing. Considering the age of the CPU, a voltage of 1.4+ could really shorten the lifespan. If you had planned on keeping that CPU and motherboard for more than another year I would suggest returning to a lower clock and voltage.