Help Please

froggie1957 · 12 Jan 2010 at 19:41

My setup
Gigabyte X58 UD5
6 Gig corsair dominator 1600 mhz
I7 920 DO stepping
Coolermaster M Silent 1000w
Ati 4870 X2
western digital black 640 gig X2

My question is : How do I reach 4.00 ghz on the I7 DO, I have been reading a load of setting from the net but they are all different and to be honest I never overclock before and do not know where to start from
Any help guys would be appreciated

Cheers all

ejr22 · 12 Jan 2010 at 20:09

You should really try and take your time with it and not jump straight in for a 4GHz overclock. The better plan would be read a bit more about it to get a better understanding of what you're doing and then to raise the settings/voltages in small increments and test for stability at each level.

Saying that, if you want to try for 4GHz here are some settings to get you on your way:

CPU Multi x20
BCLK 200
Memory Multi x8

QPI Link speed x36
Uncore Frequency x17
CPU Voltage 1.3
QPI/VTT Voltage 1.35
DRAM Voltage 1.66

XMP Memory Profile OFF

Turn OFF CPU TURBO Mode
Turn OFF C1E + C3/C6/C7 + EIST

I'm not guaranteeing that this will work but it gives you an idea of the parameters that need adjusting (although there may be more settings that you'll need to adjust).

Make sure you download some temperature monitoring software (I use RealTemp) and some stress testing software (e.g. Prime95) so that you can see if the overclock is stable.

Good luck.

EDIT: Here is a guide you can read through to get a bit more of an understanding about overclocking. Note, that this guide is using a i7 920 C0 stepping, 1333MHz RAM, Gigabyte EX58 Extreme Mobo, all on a test-bench. It is also worth mentioning that the voltages used in this guide (specifically the CPU & QPI/VTT voltages) are considered too high by most people - you should ideally be looking at putting no more than 1.3v to the CPU and 1.355 to the QPI/VTT, but obviously the lower you can get away with the better.

froggie1957 · 13 Jan 2010 at 00:47

Big thank you

Thank you very much for the reply , for sure will follow your recommendation and will take my time,

cheers mate

Akempster · 13 Jan 2010 at 10:37

how to overclock

As with all overclocking the place to start is the CPU. I suggest you raise the multiplier to 21X which is the maximum, raise the clock (bclk) up each time then test using prime95. A good 15mins to 30mins running this will show any major problems, once you have the overall clock you want run the test for 8 hours (do it overnight). If you get any problemsyou will need to lower the clock untill it is stable.

to get to the CPU settings on start up:

[Del] - enter bios
go to advanced settings
here you can change the multiplier and the bckl.

if you want to raise the clock further then you will need to increase the voltage of the CPU which is further down. I would reccomend that you increase it by a maximum of 5%, any further and you will noticably reduce the lifespan of the computer.

For better performance you can also overclock the grahics card, RAM and QPI. For overclocking ATI graphics cards you can load up the control center (CCC - catalyst control center). Then go to the overclocking tab. you need to select that you wish to overclock and the click on the lock icon to "unlock" the overclocking feature. If you click auto tune it will overclock the card for you and it does this really well. If you look at the "guide to overclocking" and "tools for overclocking" you will find many useful tips and programs to get you on your way to oveclocking the i7.

like ejr22 said, this isn't guaranteed to work and it can also reduce the lifespan of components and void manufacturer waranties. make sure you are happy aboutreducing the lifespan of the components and loosing aany warranties before you start overclocking!

hope this helps

froggie1957 · 13 Jan 2010 at 20:24

4000MHZ+

ejr22 thx a lot for your help as I tried your posted setting and they are very close to what i am getting know

Easy tune show CPU at 4000.99MHZ , BCLK at 200.o4MHZ, QPI Link at 4006.00MHZ, Multiplier at 20

Real Temp 3.00 show temperature (celsius)

40/35/39/36

Minimum
39/35/39/35

I lapped the I7920 and the Noctua cooler ,

Later I will squize a bit more but enough for know

Thanh again for your help , well appreciatd

cheers all