I want to overlock my cpu dual core 2 7 ghz

[redblock6]

Hello, hi dears i overclocked my cpu dual core 2.7ghz to 3.5ghz
but after that whenever i start windows 7 or windows xp the blue screen appears after that automaticlly restart while another time i did it again the same thing happens every time i set my cpu ratio to 13.5x please please help me whats the problem please help................

 

[saint19]

Hi redblock6 and welcome to Tom's hardware forum.

That blue screen (BSoD) means that ur OC isn't stable. Try reducing the multiplier and testing the rig with prime95 Linx or OCCT

 

[Ubrales]

Increase the voltage, but keep it within the manufacturer's limits.

 

[redblock6]

Thanks for the answers.........guys......

My bios version is 02.61
And my motherboard is msi g3tm-p21

when i enter to the bios system there is written cpu ratio at 13.5x
but i cant change it....

but some other said me that turn off the intel eist imean speedstep
but there is no speedstep or intel eist option how can i change it please.......please......help me out

 

[saint19]

Well u can't change it since the Intel multiplier is locked.

In that case u need start to OC with the FBS, start to rise the FBS in little steps but be careful with the RAM speed since this also change when u change the FBS frequency.

 

[redblock6]

But how can i unlock it please.............

 

[saint19]

U can't unlock the multiplier.

 

[redblock6]

So thats mean i cant overclock to 3.2,3.1 or to 3.5 ghz

 

[saint19]

Yeah u can OC the CPU but not with the multiplier since is locked, u need star to OC with the FBS.

 

[redblock6]

u need star to OC with the FBS.

I cant understan bro........

 

[saint19]

Ur BIOS should have something that say FBS right?

 

[redblock6]

yes bro i got it but when i change my 'FSB' to 230
i mean my cpu ratio is 13.5 and its locked

i mean 13.5x230=3105 and i exit and saved it after restarted

when windows 7 loadings finish suddenly its shown me blue screen and

automatically restart...................

 

[saint19]

That means that the OC isn't stable, a 230 FBS is a little high in the 1st try.

When u change FBS ur RAM speed also change so u need 1st slow down the RAM speed and after that rise the FBS in little steps.

 

[redblock6]

In "BIOS SYSTEM" how to slow down the ram...........please

 

[saint19]

Look for something that say "DRAM frequency" or "DRAM ratio". What mobo do u have?

 

[redblock6]

My motherboard is G31TM-P21

 

[saint19]

Look for the option in the BIOS in advance settings.

 

[redblock6]

Yes i found it

There is written.........

FSB/DRAM RATIO AND ITS SET TO AUTO.WHEN I PRESS ENTER ITS SHOW ME SOME OTHER NUMBER LIKE THIS........AUTO
1:1.25
1:1.50
1:1.67
1:1.2.00
1:1.00
1:1.20

 

[saint19]

Nice, so ur RAM is currently running at what speed? 800MHz?

 

[redblock6]

Yes bro my ram limit is 800mhz and its set on 800mhz.............

 

[saint19]

Ok, slow down to 667 and start to rise the FBS.

 

[redblock6]

Thanks alot bro for helping me thanks alot................now blue screen is not appear again i raised my speed to 3.2mhz

God bless you................

 

[saint19]

Test the rig with prime95, LinX or OCCT for check the stability of the rig that u can boot in Windows doesn't mean that the rig is stable.

 

[redblock6]

linX show me that your prosseser speed is 3.00mhz.....thanx for your Help!!!!!its worked!!!!!

 

[saint19]

Nice, keep rising up to get more