Im using the P55 SLI board. Is the OC'ing process essentially the same? For some reason, I am unable to make any changes to the CPU frequency and Multiplier settings. Is there something I need to do to fix this problem? Im new to overclocking, so any help on overclocking with my P55 SLI board would be much appreciated!

  **EDITED

First of all - hello everyone!
Just days ago I became a proud owner of a P55 Classified 200.
Before I had a Gigabyte P55A-UD3R and started to OC on that board and I'm still a noob at this, so I came here to ask for help.

On the Gigabyte I reached about 3,7 GHz stable on my i7 860 with max temp. of 80C(176F) but with room temp. of about 30C(86F) !
Now on the EVGA I'm on 3,487GHz reaching the same temperatures with 23C(73,4F) ambient, so a significant decrease of room temp than before!!!

When I try increasing the BLCK to reach 3,8GHz  I can't even boot into W7.
My cooler is the Zalman CNPS10X Quiet, running at max RPMS' with it's adapter which is about 1300/1400RPM.
RAM : 4GB G.Skill F3-16000CL9-2GBRH  2000MHz

My case is a Coolermaster 690 II Advanced with a 140mm front intake fan,  a 120mm on the back and another 140mm on top, both of them pushing air outside the case, I also think I did a pretty good cabling job so air circulation should be adequate.

I thought that I could hit 4GHz on air since I moved to a monster mobo like this and with the ambient temps going down significantly, but it's like even worse than before. Any help?

Here are some screenies
 




    
    

@xanubis
yeah that's what I keep telling myself, I mean it's obvious that I'm doing something wrong but dunno what...

When I raise the blck by a little to get around 3,7/3,8GHz (also I lower the frequency divider to 2:10 from 2:12 because I would go way over my 2000MHz then)  I get this BSOD on W7 boot



anyone knows what it is related to?
    

could you post your new settings? That would help me out!
 
Thanks

Jacob
 
Can you please explain your steps here with more detail. See my questions below.

3. Next we will go under "Memory Configure" 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 1067MHz (AKA 2:8).
  * Memory timings adjusted properly per memory specifications.
  * This will give me 1600MHz memory. (200x8)

 
First, since you said you have DDR3 1600 memory, I assume you you're saying the effective memory clock is 1600MHz? Therefore, given the memory multiplier for DDR3 memory: 8, the real memory clock setting is limited to run reliably at 200MHz, right?
 
What does the Memory DRAM Frequency in the BIOS app represent: real, effective or something in between as far as memory clock rate?
 
In your example, is Front-side Bus, FSB, Basic Clock, BCLK, and Bus Speed considered to be one and the same in concept? If not, please explain. 
 
The ratio you sited above, 2:8, is it the DRAM:FSB ratio (commonly called the Memory Divider Ratio, the inverse of the usually displayed FSB:DRAM ratio), the FSB:DRAM ratio or something else? Where did you get it? And how did you use it to get to 1067MHz? Is 1067MHz a real, effective or somewhere in between memory clock rate?
 
When you say, "This will give me 1600MHz memory. (200X8)," where did you get 200 and 8? I assumed they were, respectively, your new Bus Speed and DDR3 memory multiplier to yield an effective memory clock of 1600MHz.
 
Please, no replies from those who do not absolutely understand this stuff. It's confusing enough without the guess work.
 
Many thanks in advance
BoiseBaked

1.3 VTT is ok - no problem.. maybe 1.25V also works - Intel allows it to 1.4V.

But.. PWM VTT must be higher for oc. 
Also PWM PCI..   


MCH Strap MUST be setted to the RAM value

QPI .. try the lowest MHz.
"Auto" is never good for oc.

Not good, I'm not satisfied, with the NH-D14 I thought I could reach 4GHz, maybe some settings are still wrong?


 


    

don't use XMP profiles... .
they are useless.. 
set the timings / clock to the specs of your ram and everthing is fine     

Friends, let me help to settle over me, with these new bios, I tried with the A72 and A70 and with neither could I boot the pc with over, just goes into windows pc with the stock, I noticed a few new options in bios I do not know how to set up, I would like help on how to configure this new bios, now I'm using the A70.

CPU SKEW CONTROL?????
CPU MULTIPLIER SETTING?????
 

 

Thanks for the link dozer3000, I didn't know what it was either.  I wouldn't bother adjusting it really.  As for CPU multiplier, it's just the multiplier applied to the base clock.  20 is the max on your CPU.

You shouldn't just go and use anyone's BIOS template especially if it's a different CPU.  Voltage requirements vary per batch.  You should use a starting point for voltages.  1.30 VCore and 1.30 VTT are great starting points.  If those temperatures are in Celsius, then your cooler and thermal paste must be mounted horribly.  Remove the cooler, remove all of the old thermal paste with high percentage alcohol or ArctiClean.  Make the CPU and cooler look brand new.  Then apply a size of TIM onto the center of the CPU the size of a rice grain, and then mount the cooler.  Make sure the cooler is getting good contact with the CPU.
 
The software you're using could have a messed up sensor as well.  What are you using to monitor temperatures?  I prefer RealTemp and the P55 FTW also has its own CPU temperature display which is good.

The H50 and H70 are only on par with air coolers.  A typical 120mm water cooling radiator like the H50 is good for dissipating around 200W of heat, which is what most ~4 GHz i7 quad cores will be giving off depending on voltages.  The H70 is a bit thicker and is a few degrees ahead of most air coolers, but not by much.
 
For 4 GHz you'll definitely want more than just the standard, piece of crap fan included with the Corsair H50.  Since it has a fin density of 20 FPI you'll want something with good pressure such as push/pull Scythe GentleTyphoon AP-15 if you don't want to go deaf.  Intake or exhaust... it won't make much of a difference.  A few degrees.  
 
Regarding thermal paste, I'm sure you know it's just used to fill the air gap between the CPU and heat sink since air can't transfer heat well.  So you want the thermal paste to form a thin layer over the CPU.  The best application method for flat surfaces is to apply a small drop of paste on the center of the CPU (about the size of the rice grain) and then mount the heat sink directly on top of that.  Spreading it yourself is not recommended since you'll create air pockets which will kill heat transfer.

I put a small dab in the middle and have dropped 13c running prime95. at 100% on stock bios settings.. :) 
 
at idle is about the same using core temp. but 13c less at 100% load.
 
Guess i am the newb :) 

the solution is here and there .. just one below
 
http://forums.evga.com/tm.aspx?m=583824