Overclocking an i7 920 D0 - 4.7GHz

Machine arrived at around 4.20pm today, was pacing around the house waiting for it to arrive in the afternoon as I took that off from work. The CPU fan was not plugged in right, a bit loose, but my lovely girlfriend (see the post above) plugged that in for me, and now its up and running perfectly.

It is one amazing machine, so tall with loads of fans to keep it cool, for such a powerful system I am very surprised how quiet it is, and thats with the fans on medium! Im just updating and transferring all data from an external HDD, which will take about an hour, so not been able to test any games yet.

Its one beast of a system though, really fast on stock which I think its on at the moment, but will change that later on tonight :D
 
rjkoneill said:
Here are the overclocks...
tried to get the voltages down as much as possible

3.6 stable


3.8 stable


4ghz stable


4.2GHz



let me know if you have any questions :cool:
Click to expand...

Hi rjkoneill

Would you be able to tell me exactly which voltages you used for your 4ghz overclock please? I'm trying to get mine 4ghz stable and can't bring my volts anywhere near yours. I have a feeling I'm going wrong somewhere.
 
I was hoping that rjkoneill can help me here.

Im trying to pick the profile Overclock settings, and I decided to pick the 3.8 OC level in the BIOS, but upon start-up it says the CPU as 2.67 @ 3.56. Is this just an error upon start-up, or am I picking something wrong somewhere?
 
danceMB said:
I was hoping that rjkoneill can help me here.

Im trying to pick the profile Overclock settings, and I decided to pick the 3.8 OC level in the BIOS, but upon start-up it says the CPU as 2.67 @ 3.56. Is this just an error upon start-up, or am I picking something wrong somewhere?
Click to expand...

If Turbo-mode is also enabled that should take you to 3.8Ghz when the cpu is loaded :)
 
I went through the options and "Turbo Mode" is enabled, but for some reason it doesnt let me select any of the 4 overclocking profiles, as it seems to already be overclocked to 3.58, but how do I select the other 3 profiles if I want to? I need an idiots step-by-step guide to make sure im not doing anything wrong
 
Just as an update, it looks like mine is now sitting pretty at 4.2 :D

Haven't tested for Prime stability, but it's been stable enough for 6+ hour game sessions without issue.

Consider me chuffed :D
 
Do you have the same system as me? If you do then I might need the settings off of you as to how you got there, but I wouldnt personally go past 4.0 as at 4.2 the guy who overclocked my machine said I would need to put the system fans on high, and I dont want to have then going past medium which it is on now
 
rjkoneill, I hope you can provide me with the manual settings that you used for both the 3.8 OC and the 4.0 OC as well, Yewin said that you do not have access to the Pre-Sales Customer Service forum so cannot reply to me directly there, but hopefully you can here, as id really like those 2 performance boosts for my system
 
i dont have access to that forum - sorry

the settings for the overclocks are saved in the overclock profiles in your bios

if you go into your bios and go across to TOOLS

you should see an option that says load from profile

load each profile that you want

then get into windows - using cpuz and prime - you should see the speed hop up to the overclocked speed

i left speedstep on all of the overclocks so that your system wouldnt be at 100% all the time
 
danceMB said:
I went through the options and "Turbo Mode" is enabled, but for some reason it doesnt let me select any of the 4 overclocking profiles, as it seems to already be overclocked to 3.58, but how do I select the other 3 profiles if I want to? I need an idiots step-by-step guide to make sure im not doing anything wrong
Click to expand...

take a read through your motherboard manual - it should show you how to select overclocking options on your rampage extreme 2
 
ripped said:
did you have to update The BIOS to get the D0 chip to work in yor board?
Click to expand...

no - every x58 board will work with a D0 chip

but you do need to update the bios to the manufacturers latest D0 compatible Bios to get the chip to run properly

wasc said:
Hi rjkoneill

Would you be able to tell me exactly which voltages you used for your 4ghz overclock please? I'm trying to get mine 4ghz stable and can't bring my volts anywhere near yours. I have a feeling I'm going wrong somewhere.
Click to expand...

most x58 boards and D0 chips i have seen will do 4GHz/4.2GHz at 1.3v

or at least a couple of notches up from that

i cant give you the exact settings unfortunatly as every setup is different

you have to experiment for yourself
 
I did do the "Load CMOS Profile" under tools, then selected profile 3 for example, then F10 to save and exit, but whichever profile I selected the speed did not go above 3.58, for reasons which I cannot understand. I thought that I might be selecting something wrong, but it appears that is not the case. Is there any reason why the CPU will not budge past the 3.58 OC speeds?

Would turning off speedstep help at all? Everytime I reboot the speed says 2.67 @ 3.56
 
that is bizarre

i saved each one after testing for stability

anyway

the voltages for 4ghz should be set in the profile still

i would personally try upping the BCLK to the following values [and stress testing using prime]

BCLK = 180 for 3.8GHz using turbo mode
BCLK = 190 for 4GHZ using turbo mode

assuming turbo mode is disabled [will say at top of the extreme tweaker]
then add 10 to each of the BCLK values

BCLK = 190 for 3.8GHz not using turbo mode
BCLK = 200 for 4GHZ not using turbo mode

the voltages should need no adjustments tbh

iirc you had a very good chip that did 4ghz on the same volts as we usually use for 3.6

you should have all the stress testing programes in C:\program files 86\ocuktesting
 
great stuff !!

With an overclock like that I could access my blue pill and lady boy e-mails whilst updating my bank information in double quick time :) :D

Great write up has lead me to read more into it on wiki and the like great stuff.
 
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