overclocking core i7 920

terminator2k2 · 17 Dec 2010 at 13:46

hi there im gonna have a play with overclocking....

the processor is a core i7 920 revision co/c1 according to cpuz

my mainboard is a gigabyte ex58 ds4

aim is @ 4ghz using a corasir h70 cpu cooler

ive tried the following after reading a thread on here:

ratio was already 20 so left it

blck to 200

vcore to 1.275v

this alone set the cpu to 7.9ghz lol.....so i exited without saving......

i couldnt find

pll or uncore

i take it qpi 1.275 is the vcore of the qpi

terminator2k2 · 17 Dec 2010 at 13:55

is the pll the qpi pll?

terminator2k2 · 17 Dec 2010 at 14:12

thanks for the reply....

my max ratio is 20

cant set it any higher than that.....

i just used :

ratio 20
bclk 200
vcore 1.275v (this is lower than auto)
vcore pll 1.8v
qpi 2.8v
uncore 3200

system wouldnt boot......

is the qpi clock ok when it goes up to around 7.9?

so shall i start with just adjusting the bclk to 200?

terminator2k2 · 17 Dec 2010 at 14:16

it was 1.28v sorry hehe...missed the 1 out

go to go out now so ill try the above when i get back...

the only thing that bothers me is the qpi clock thing goes from 4.8 to 7.9 i think....is this normal?

terminator2k2 · 17 Dec 2010 at 17:46

hi there, all ive altered so far is the bclk

i set it to 180 x 20 which is 3.6ghz

all of the other settings ive left on auto.....

in cpuz i get:

core speed: 3780
multiplier : x21
bus speed: 180
qpi link: 3240

temps are max 73 degrees
average around 69-71 after 10 mins runnning prime

does this seem ok so far.?

cheers chris

terminator2k2 · 17 Dec 2010 at 18:17

thanks for the reply....

ill see how it goes.......but yea when i see folks overclocking the i7 they all say multi x21, when i go into bios it says input a number between 1 and 20...

ive even put 21 in and it doesnt accept it.......