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Need help overclock i7-920 on Intel DX58SO

post #1 of 12
Thread Starter 
Hi, I would like to have some tips and tricks on overclocking an intel CPU and especially on i7. I have overclocked in the past but only AMD.
Is there anything different that i need to know?

Basically, my friend bought his i7-920 along with the dx58so 2 years ago when it just came out and he's not much of a computer guy like i am and since he has a crappy case and i just changed my antec1200 for a 800D i decided to give him my case and at the same time install a CM Hyper212+ heatsink and overclock a bit his cpu ... hopefully around 3.4-3.6ghz with the cpu heatsink and that mobo. i read that the mobo isnt a very good mobo but well ... he bought it 2 years ago so cant do much.

so any advice ? I will have his computer by monday or tuesday so i dont know exactly the specs but im guessing :

crappy case super dusty
i7 920
intel dx58so mobo
3x2gb 1333mhz 9-9-9-24
ati hd4870
650w antec earth psu
2x seagate 500gb in raid0 (i think on of the drive has some problem but i have no idea how to check... its taking like 10mins to boot the system because of an error in the raid but he didnt know how to fix it ... im gonna have to figure out so feel free to help me





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post #2 of 12
intel uses locked bios's so overclocking them is pretty much impossible.

Checking for errors in raid is pretty much the same, almost impossible, your best choice would be a complete reconfigure of the raid array
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post #3 of 12
Thread Starter 
hmmm so i cant overclock at all ?

and how do i check individually each drive to know which is working and which is defective ?
post #4 of 12
Quote:
Originally Posted by Jomboh View Post
hmmm so i cant overclock at all ?

and how do i check individually each drive to know which is working and which is defective ?
You can definitely overclock on it, in fact, it's actually a decent overclocking motherboard considering that it is the first i7 Mobo. Anyone who says you can't overclock on it doesn't know what they're talking about...

Here's what I would recommend for the settings:

1. Set the BCLK from 133 to 180

2. Change the CPU voltage to 1.35v

3. Change the Memory Voltage from to 1.7v

4. Change the VTT (or QPI/DRAM) to 1.25v

5. Change the Memory multiplier to 8x

6. Manually set the memory timings to 9-10-9-24 (leave the rest of the memory configuration settings as they are)

This way you would have your i7 920 running at 3.6Ghz and your RAM running at 1440mhz

If everything is successful, then you can start to lower the CPU voltage from 1.35v in small increments until the computer is no longer stable.

Good luck!
    
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post #5 of 12
the mobo is pretty decent for OC'ing but not the best. if you dont have a d0 920, will be hard to oc much. ive managed to squeeze 4.4ghz on my 920 with turbo on (on air). 200 bclk, my 2000mhz ram is underclocked to 1600 until i get a new mobo. vcore is 1.35 iirc in the bios which comes out to 1.3 in windows under load. the IOH and QPI voltage is 1.275.

if you dont have a d0 revision chip you will need alot of voltage. also the mobo wont be stable on any bclk higher then 200, but you wont really need to go past that for a decent oc.

also if you only have 1333 ram, and want 4ghz with your 920, change your memory multiplier from 8/16 to 6/12 so it underclocks to become stable. make sure your memory voltage is 1.66 and no higher. you should be able to run your ram around 1200mhz and get close to 4ghz if you have a good chip.

edit: also id recommend updating the bios before playing around with OC. i read some things about unstable OCing with older bios versions. upgrade to latest and greatest then tweak from there
Edited by audirs - 12/11/10 at 6:44pm
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post #6 of 12
Quote:
Originally Posted by Kal777 View Post
intel uses locked bios's so overclocking them is pretty much impossible.

Checking for errors in raid is pretty much the same, almost impossible, your best choice would be a complete reconfigure of the raid array
This isn't true at all!
Go into your bios and mess around with the bclock default is 133, you may need to up the cpu core, and possibly the QPI core (listed under memory at the very bottom)

It's a slow process but you should have no problem getting the chip to 3.6 or 3.8! I have this same settup.. just turn off all the energy saving features and if you want to have HT on make sure it's on when you overclock because that will affect stability as well.

There are a lot of guides on the i7 and they all generally apply to the same thing, some motherboards just have more options the Intel board is actually pretty good overall! it doesn't have the best steppings but it does the job!
post #7 of 12
Thread Starter 
I will check that out when my friend brings his computer over for the case swap.

How long do you thing its gonna take to get a stable 3.4-3.6Ghz OC ? I usually go with 8hrs Prime but i dunno how lucky I will be with his CPU lol I got really lucky with mine when I got it to 4.4Ghz (recently downclocked to 4.2Ghz when swapping to an 800D)

Anyways I'll bump this post when I'll need you guys

thanks to akrEAGLE for the little guide too i appreciate will i need to bump RAM voltage to 1.7v or something ? his ram sticks are kinda bad ... I wouldnt go for anything lower than 1600Mhz >.> but well he bought it 2years ago and he didnt knwo what he was buying i guess
post #8 of 12
Quote:
Originally Posted by Jomboh View Post
will i need to bump RAM voltage to 1.7v or something ? his ram sticks are kinda bad ... I wouldnt go for anything lower than 1600Mhz >.> but well he bought it 2years ago and he didnt knwo what he was buying i guess
Check the manufacturer's spec but it's usually 1.65v for the RAM voltage (I wouldn't go higher than that on that board).

Also when I had my 920D0 with the DX58SO, I was able to get it up to 4GHz with only 1.25v vcore. Of course, each chip is different so YMMV. Mine was the "A" batch, btw.
Edited by reaper~ - 12/11/10 at 8:13pm
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post #9 of 12
I used to have this board..hmm clocks well but i think you can sink prettily around 4ghz-4.2ghz on this mobo..regarding mems..depends on the specs it has for timing and frequency..
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post #10 of 12
Quote:
Originally Posted by Jomboh View Post
I will check that out when my friend brings his computer over for the case swap.

How long do you thing its gonna take to get a stable 3.4-3.6Ghz OC ? I usually go with 8hrs Prime but i dunno how lucky I will be with his CPU lol I got really lucky with mine when I got it to 4.4Ghz (recently downclocked to 4.2Ghz when swapping to an 800D)

Anyways I'll bump this post when I'll need you guys

thanks to akrEAGLE for the little guide too i appreciate will i need to bump RAM voltage to 1.7v or something ? his ram sticks are kinda bad ... I wouldnt go for anything lower than 1600Mhz >.> but well he bought it 2years ago and he didnt knwo what he was buying i guess
Thanks . Since you would have your CPU at 3.6Ghz (180bclk), that means that you can run the RAM at either 1080mhz with a 6x multiplier or at 1440mhz with an 8x multiplier (you can only use even multipliers). Since the RAM is rated at 1333mhz at 1.65v and I'm assuming you wouldn't want to go with the 1080mhz option, you would have to bump the voltage on the memory to 1.7v to get it stable at 1440mhz.

Quote:
Originally Posted by reaper~ View Post
Check the manufacturer's spec but it's usually 1.65v for the RAM voltage (I wouldn't go higher than that on that board).

Also when I had my 920D0 with the DX58SO, I was able to get it up to 4GHz with only 1.25v vcore. Of course, each chip is different so YMMV. Mine was the "A" batch, btw.
The reason Intel states 1.65v is the most you should do is really because you need to keep it within 0.5v of the VTT (QPI/DRAM). The VTT stock voltage is 1.15, so that's where intel comes up with that number. As long as you raise the VTT to 1.2v-1.3v as I stated in my first post, it will be completely fine. That way you will also have decently fast overclocked RAM
    
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