Always a good idea to start with a clean bios flash.

when you first start clocking, can you go right to the 40x multiplier? hell if i got my chip to 4.4ghz id be happy. pretty happy with it now though

A quick question.
 
You mentioned that if its getting 75c+ temps its too hot. You do mean underload while running p95 right? Were you able to keep it below those temps with 1.49 vcore?
 
I can barely keep below those temps underload with the cpu on a waterblock.
 
 

800 reading is correct, you are using DDR memory = Double Data Rate, 800X2=1600.
 
Set your memory timings manually for both channels.

system ...
p67 ftw
corsair vengeance 1866 16gb
corsair ax1200 power
i2600k
dual evga 580 video cards
dual water loops, 1 for video cards , 1 for memory and cpu 
 
So far i am stable at 4.6 ghz .
video water loop under stress testing with evga oc scanner with 1920 only hits max of 34 on one card and 32 on the other.

This seems to be a sweet spot can get it somewhat stable at 4.8
 
(haven't tested too much as voltage needs a huge jump to over 1.3x and temps were too high for my liking around 72, also can get it to boot at 5.0 but havent bothered to try to get it stable as temps would again be too high for daily driving.)
 (i had to bump up the bclk to 10020 otherwise efleet shows 99.8  any idea? 
Issues: 
 
1. bclk not keeping in bios after reboot.
2. efleet not showing any clock speeds in overclock tab and incorrect video clock speeds (I believe the incorrect video speed is the secondary card which is current not in sli going into a p8 or p12 reduced power state, however picking one  card or the other does not show the correct speeds of the active card ever).
Currently prime 95 testing so far stable at 4.6 10020 bclk at 1.250 volts with idle temp at about 35 and max at about 62.
Still working downwards on voltages to see how low i can go
 
c1,c3 e are off turbo on , and without vdroop on
 
3. Another issue i have is that i cannot seem to change the name of the profiles in the bios, again is this a known issue. 
 
Thanks for all your help with the guide and any questions you can answer.
 
 
 

I see others at 4.5GHz getting about 119Gflops on linx or IBT but i'm only able to achieve 98Gflops after much tweaking. I have tried multiple boards, different ram. for what ever reason i can not get my ram stable at 2133 so i have it running at 1867 @ 8-9-9-24 Any ideas? i'm at 4.5GHz at 1.335v

Nice work

It's a nice guide, helped me get easily to 4.5GHz (multi 45) with almost standard "Turbo" vcore, now using 1310mV and seems I am able to pass 3 rounds of LinX 0.6.4 (w/ AVX).
 
however I am running a permanent OC with all power saving features disabled in BIOS (optional in Jacob's guide). for some reason my Windows doesn't want to boot up when I enable them back on, the result is STOP error 101 on loading the welcome screen. all works fine and passes stress testing when I disable them.

Lvcoyote

Thats probably why he suggested disabling them.  The stop 101 error almost always indicates too low vCore. You have two things to try here, either lower the overclock and see if the problem goes away or try raising the vCore and see if the problem stops. Do you have CPU PLL Voltage Override enabled and vDroop disabled?

 
I actually had to do neither, simply disabling the power saving features saved the day. my guess is that downclocked (power saved) CPU was not stable with automatically lowered voltage (god knows what it was at), while at full power it's still stable.
 
yes, I enabled the PLL override. running without the vdroop . will try 20 rounds of LinX overnight at same settings to see if vcore is OK or still too low.

I have a i5 2550k @4.4 1.3v and super stable air cooled
I have my ram set to 2133 but I'm still only getting 1600 ie 800x2
G.skill F3-17000CL9Q-16GBZH

I have it on manual, I will double check the timings and voltage. Thanks

I got it, was the voltage and the timings how I missed that I will never know. thanks again

Hey guys I followed this easy OC guide and I've done OC on many MB, but when I OC, save and EXIT.
Go to Eleet and my Cove Voltage is showing 0.872!?
HOW THE F...?
I set my Multiplier to 29 since I run stock cooler for now
and Vcore to 1.280
Any help please

Thank you nick, its all Disabled though.
I think there was a problem with E-leet not showing it correctly
Got Cpu-z and its all good now :D

has the P67 sli been tested wit the IB class yet? i know it'll support it can support it, but has anyone tried it yet? has there been a memory update list if so? high memory on SB was 2133 and now IB is 2600? with all the 680 card users has anyone confirmed the usage of PCI-e 3.0?
 
airdeano