Hi Jacob on my sons computer I just want to clock my memory alone not with the CPU this is the memory I have.CORSAIR XMS3 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMX4GX3M2A1600C9. The mother board is a EVGA P55 SLI 132-LF-E655-KR I would love to get the info on how to do this thanks for your time .

Thanks for the fast response. Yes 1600mhz Well then my question is can you give me a step by step on how to do this? My cpu is Intel Core i5-650 Clarkdale 3.2GHz.Thanks for your help.

Thanks! I just got my exact same setup yesterday and im hoping to get the same performance.
 
But i got two questions, what cooler are you using and what temperatures are you at? Also do you ever hear the annoying crackling sound when you play games? I get it with all of my games. The computer shuts down without a blue screen like the CPU overheated or something. I tried runing stock as well but no luck. Any ideas?

From everything I've read, the i7 Lynnfield actually has a divider up to 12 so he shouldn't have to overclock.

Alright, I feel rather dumb right now. I cant change my CPU Frequency Setting in bios. Its locked at Auto...
 
I know I have to missing some setting..  Just cant find it...
 
 

boredgunner

Just click on it and enter the desired speed.  Then press enter.  It's a bit different than other boards I've used too.  

 
Yeah, figured it was something simple like that...  Thanks..
 
 
I am trying to get a feel for this board. One thing I am noticing is that the voltage seems to fluctuate, I have EVGA VDroop set to "without vdroop" but I notice in cpu-z and HWMonitor that my idle voltage dips really low. Is this normal?
 
Here is a base I am going to try, CPU @ 4.0 - Ram @ 1600
 
 

CPU Multi - 20
CPU Skew COntrol - 0
Clockgen Switch Mode - Enable
CPU Freq - 200
PCIE Freq - 100
QPI Frequency - Auto
MCH Strap - Auto
Extreme Cooling - Disable
EVGA VDRoop Control - Without
Boot Up CPU Vcore - 1.35
Eventual CPU Vcore - 1.35
DIMM Voltage - 1.65
Boot Up CPU VTT - 1.35
Eventual CPU VTT - 1.35
PCH - Auto (1.050V)
CPU PLL - 1.80V (Auto)

 
Not sure if I am missing anything...
 
 

That seems to have gone away...  Strange...
My voltage in bios is 1.31, windows idle is 1.305 load its 1.32..
 
What are your VTT & PLL voltages?
 
Here is where I am at right now...  20 pass LinX stable, will do a prolonged Prime test tonight..
 
Temps are not an issue, so any help getting to 4.0 and beyond is appreciated..
 
CPU Multi - 19 (3.80)
CPU Skew COntrol - 0
Clockgen Switch Mode - Enable (cant disable after cpu freq 200)
CPU Freq - 200
PCIE Freq - 100
QPI Frequency - Auto (Options for 4.27 & 4.80)
MCH Strap - Auto (Ram running at 1600 now)
Extreme Cooling - Disable
EVGA VDRoop Control - Without
Boot Up CPU Vcore - 1.3125
Eventual CPU Vcore - 1.3125
DIMM Voltage - 1.65
Boot Up CPU VTT - 1.30
Eventual CPU VTT - 1.30
PCH - Auto (1.050V) (what is this?)
CPU PLL - 1.80V (Auto) ?? Should I raise this for higher OC? what is it in reference to)

DIMM 1/2 DQ VRef - 0mV
DIMM 3/4 DQ VRef - 0mV

CPU PWM Frequency - 477KHz
VTT PWM Frequency - 240KHz
DDR PWM Frequency - 240KHz

CPU Signal 1 - Auto
 

Pain2U

What is the best settings to achieve a 3.8 ghz  with an I5 760 on a P55 LE board?   With 8gb of ripjawz 2000mhz ram. Nvidia GTX 465 video card with 1 gb.

 
That's not how overclocking works.  Different settings are required for everyone, except those who have the same CPU batch which is rare.  You'll have to find out yourself by following an overclocking guide.  I hope you have a good aftermarket CPU cooler as well.  The stock cooler can't handle overclocks.  3.8 GHz is an oddball achievement for an i5 760.  181 MHz QPI x 21?  Might as well aim for 200 x 21 for 4.2 GHz, which I did.

I guess what I'm asking is, is there a guide for the I5 760 that I can follow and if anyone has overclocked this particular cpu what settings did they use to make it stable?  I have never overclocked any of my previous cpu's and I don't want to do something wrong to cause it to go bad.  looking for help basically.  Thanks for any that I get.

What about the 4.2 ghz someone mentioned.  Will the cpu be stable enough to not hurt it?

Each cpu is different. There is an entire thread dedicated to the i5-760 at overclock.net, all different boards and ram..
 
Some people are able to hit 4.0 + on low volts. I see guys doing it on 1.29v core 1.28v VTT... 
 
Personally I have tried as high as 1.34v core (bios) & 1.32v VTT (bios) which translate to 1.364v core & 1.34v VTT windows load.
Still not stable at 4.0...
 
I have dropped down and trying to get stable at 3.8 now..
 
Some cpu's just dont clock as well as others..

you guys should not have to mess with pll for your clocks but might gain a little more stability by upping pch a notch or two.. my ftw/i5 750 does not like bios a72 as much as a51 for higher clocks.. if you go 191x21 on i5 750 you might find you can get stable with lower volts then say using 200 bclk.. just like said,, every one is different.. mine likes 1.38 cpu with anything over 200 bclk but will run 191x21 with both cpu/vtt under 1.30.. for 21x210 i have to run 1.46 cpu 1.375 vtt.. everything mentioned above without vdroop..

 
Got my eVGA p55 micro to go 4.2GHz with the new bios finally. Thanks for all the guides and best support ever.

JacobF
Late Setember I purchased  from Tiger Direct a computer mostly assembled where I had to install the EVGA GtX 470, 2 hard drives and 2 DVD drives.  The discreption of the computer from the invoice is    Intel Core i7 4ghz Overclocked Barebone PC-EVGA p55 FTW SLI Motherboard Intel Core i7-875 Processor, 4GB DDR3 Ram, cooler Master HAF 922 Chassis, Thermaltake 850w PSU ,Asetek Liquid cooling.     Worked well for 7 weeks then about 5 days ago It started heating up (106oC). After several phone calls I ended up at Intel and their advice was to flash the BIOS. Imediately took care of the heating problem.  My guess is that the overclocking setting was in the original bios from Tiger Direct supplied by EVGA.  When I flashed the bios the Overclocking went away. I have beeen trying your Guide with no sucess. I thought that my system was very close to what is discribed in your Guide.  The main difference being the liquid cooling and in the BIOS  I could not change the multiplier Setting from 22 to 21 Everything else seemed to match your guide.  There Is one more addition I added that I forgot . another memory set. The orignial Corsair XMS3 and my new Kingston Hyper X   All 1 Gig total of 4
When I got the system running for a short time the CPU-Z Core Speed was in excess of 4600.   Without  doing anything the core speed was 2929.6 MHz    Any help will be great The Bios I flashed was e657.a72    Gene    I will gladly send whatever screenshots I can get!

Does this guide refer to the P55 LE as well?
My bios looks the same, but some of the options aren't listed.......