Since some of you are just now receiving your boards, I figured now would be a good time for a quick and easy overclocking guide. Make sure to click on any image for a larger version.

Make sure to grab latest BIOS and EVGA E-LEET 1.02.8 first!

Note: Just because these settings work in my case, they may not in all cases depending on the components, it is best to use this as a base or a guide and tweak from there.

Also, this guide will use an Intel 920 as an example, if you have an Intel 965, it will be a different experience since you will have an unlocked multiplier, you will not need to rely on adjusting the QPI frequency.

So lets talk about our goal, our goal is as follows:

• Using an Intel 920, overclock to at least 4.2GHz on air.
• Run DDR3 memory in Triple Channel at 1600MHz, 9-9-9-24.
• Run a QPI frequency of 200MHz or higher.

1. So the first thing we want to do is go into the BIOS, and press "Load Defaults", save and exit and go back into the BIOS and navigate to "Frequency/Voltage Control"



2. Next we will adjust the following options:

• CPU Clock Ratio to 20x.
• CPU Host Frequency (AKA QPI/BClock) to 200MHz.
• CPU Uncore Frequency to exactly double my memory multiplier, in this case 16x.
• This will give me exactly 4GHz (20x200), but we want 4.2GHz or more so keep reading...

3. Next we will go under "Memory Feature" and adjust my memory to it's specifications. In my case, I am running 1600MHz memory so I will make the following adjustments:

• Memory Frequency to 2:8.
• Memory timings adjusted properly per memory specifications.
• This will give me 1600MHz memory. (200x8)
• Set the tRFC Setting to 74

4. Next, and probably most importantly, we will need to adjust the voltages. Under the "Voltage Control" I made the following adjustments, and please note, you may need to tweak this further for better stability, and/or better temps.

• EVGA VDroop Control - Without VDroop
• CPU VCore - 1.47500V (note, this is just an example)
• CPU VTT - +300mV
• CPU PLL - Auto
• DIMM Voltage - 1.65V
• DIMM DQ Vref - +0mV
• QPI PLL VCore - 1.400V
• IOH VCore - 1.400V
• IOH/ICH I/O Voltage 1.650V
• ICH VCore - 1.250V
• PWM Frequency - 1067 KHz

5. Finally, on the "CPU Feature" page, we will make the following critical changes:

• Disable all of the Intel Power saving features.
• Enable "Turbo Mode Function" (this will give me a 21x multiplier in some cases!)
• Change my QPI Frequency Selection to "4.800 GT/s.

6. Oh yea, we will increase the fanspeeds:



7. Now, in Windows with EVGA E-LEET we are at 4.2GHz! But we're not done yet!



8. On the memory tab we can see our memory is running at 1600MHz (800x2) Just like we wanted.



9. So now lets push it some more, using EVGA E-LEET, we will go to the overclocking tab, and are going to try increasing the QPI Frequency to 205MHz. This puts me at 4300MHz... still ok...



10. Lets keep going! Up to 215MHz! That is over 4.5GHz on air!



11. Next I will save a validation file in EVGA E-Leet and upload it for bragging rights

http://valid.x86-secret.com/show_oc.php?id=449593



That's it! As you can see it is really not very difficult to overclock the new Core i7 Processors, hopefully this helped any questions that you may have!

for Vcore, it can be lowered - but what about all other voltages? Can they be adjusted accordingly as well? I am seeing 82*c uner load with just the vcore set manually at 1.282 (1.317 under load). The rest are set to auto.

Isnt that dangerous voltage for the CPU? I know nothing about overclocking i7 and just want to take my i7 920 to 3.8-4 ghz with safer settings, can anyone give me ballpark figures? I have (6) 2 gig Gskill DDR3 1600 and dual xfx black edition gtx 260's as well as corsair 850 watt.. Thanks

CaptainSim, could you list out your other settings? There are a zillion and to be honest dont know what is safe and what isnt...

CaptainSim

Running my 920 @ 4.2ghz with about 1.29v in bios, 1.317 under load.

Please post your config. Thank you.

Nice! Thank you!

This post alone will make me buy EVGA from now on. Not because of the performance (that is nice too) but the fact that an employee takes the time to give us tutorials like this.

See ya, Asus.

- Jason

SWEET
Thanks Jacob

Can you help me with my 790i Ultra SLI with Q9550?

I cant even get close to stable, not even past win7 boot.
I have I7 920 Do and X58 Classified with corsair 2000MHZ set manually at spec 8-8-8-25.

I even tried under clocking ram to 1800 MHZ.

I followed the guide to a "T". I made it to 3.8 but temps were 70C idle. (AIR, for now)

but the 4.2 you spec'd, I cant even get past boot without a blu screen.

On air with true 120 cooler, i got 4.0 to boot up and log in, but its not stable and crashed after like 10 seconds. So far got mine stable at 3.5 running at 45 degrees.

EVGATech_JacobF

• Enable "Turbo Mode Function" (this will give me a 21x multiplier in some cases!)

Could someone please clarify the "some cases" above?

I started this thread would appreciate some confirmations if the E758-A1 can support i7 920 at 21x "permanently".  By "permanently" I mean the board can run 21x for all 4 cores all the time, regardless of TDP.  It is as if you manually set the CPU Clock Ratio to 21x.  If so, what are the BIOS settings?

Thanks,

Also...keep temperatures in mind when OCing, heat is the real killer...

The same thing happened to me. I just unplugged the sata cable and plugged into a new port and it worked fine for me.

I have almost zero probs with this setting followed to the T.  Except very rarely i get blue screen of death outta no where.  When I say rarely I mean like twice a week maybe, any suggestions on how to tone it down to 3.8?  the blue screen says something about processor #2 not responding in a certain time interval.  Like I said the crashes are rare, but happen at really bad times.

Booted 1st time no probs sitting at 50c right now, no load lol. I will probably tone it down but here are my specs. I am going to game with it right now and see how it is lol ><

Win7 64bit
X58 Classified
g-skill 6gig trident 2000mhz ram running at 1600mhz
CorsairHX 1000w
CNPSX 10 ZALMAN heat sink
EVGA 2x285 GTX
i7 920 D0 4.2ghz x21 multi


LOL wow I need to update my sig

EDIT- okay 71c load....I am taking it down to 4.0 and see how that is.