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Hows my OCing? Can't seem to get to 4ghz

post #1 of 12
Thread Starter 
So I can't seem to get to 4ghz for some reason. Right now I'm at 3.95ghz. Do I need to up my ram voltage? or just vcore?

Heres my settings so far
Here is my settings,

Quote:
Memory Configure

DRAM SPD.............[Standard]
DRAM Frequency......................................... ....[2:8]
timings are 9-9-9-24 manually set

Memory Low Gap .................[AUTO]
Memory Remap Feature.........[Enabled]
Memory Hole.......................[Disabled]
DRAM Margin Ranks..............[Disabled]

CPU Configuration

Hardware Prefetcher......................[Enabled]
Adjacent Cache Line Prefetch..........[Enabled]
MPS and ACPI MADT ordering..........[modern ordering]
Max CPUID Value Limit..................[Disabled]
Intel Virtualization Tech................[Disabled]
Execute-Disable Bit Capabili..........[Enabled]
Active Processore Cores................[ALL]
A20M.........................................[Disabled]

C1E Support...............................[Disabled]
Intel SpeedStep Tech..................[Disabled]
Intel C-STATE tech ....................[Disabled]

Frequency/Voltage Control

Dummy O.C.........................[Disabled]
CPU Multiplier Setting ..........[21]
CPU Skew Control.................[0ps]
Clockgen Switch Mode...........[Disable]
CPU Frequency Setting..........[188]
PCIE Frequency Setting.........[100]
QPI Frequency Selection........[Auto]
MCH Strap...........................[DRAM Ratio]

Extreme Cooling..................[Disable]
EVGA VDroop Control...........[With VDroop]
Bootup CPU VCore...............[1.3750V]
Eventual CPU VCore.............[1.37500V]
DIMM Voltage.....................[1.50]
Bootup CPU VTT..................[1.350]
Eventual CPU VTT................[1.350]
PCH...................................[1.050V]
CPU PLL.............................[1.800V]

DIMM 1DIMM 1/2 DQ Vref..............[+.0mV]
DIMM 1DIMM 3/4 DQ Vref..............[+.0mV]
DIMM 1DIMM 1/2 CA Vref..............[+.0mV]
DIMM 1DIMM 3/4 CA Vref..............[+.0mV]

CPU PWM Frequency....................[477 KHz]
VTT PWM Frequency....................[240 KHz]
DDR PWM Frequency...................[240KHz]
CPU Signal 1..............................[auto]
Here's my cpuz the only thing is that sometimes the voltages jump to 1.352 when prime95

   
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post #2 of 12
Try lowering CPU PLL down to 1.6. Your VTT is a bit high, did you need it at 1.35 to be stable? It probably just wants more VCore in the end, if temps are ok try 1.4.
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post #3 of 12
Thread Starter 
idk what it needs to be stable, i had copied the template from someone who had similar chip and mobo, is it safe to lower the PLL and VTT?
   
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post #4 of 12
Are you failing with errors? Or a BSOD? If it's errors after a bit, try another notch up on the vcore.

Also, very important, try and keep your RAM from oc'ing, until you get the cpu stable.

As a note, systems with the exact same hardware will not always oc the same. It's trial and error. You have to find your sweet spots.
 
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post #5 of 12
Thread Starter 
my ram voltage on auto goes to i think 1.55 but i manually set it to 1.5v so just keep pushing vcore? should i lower my PLL and VTT like djk11 suggested?
   
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post #6 of 12
Bump up your vcore and lower the other voltages djk11 suggested. Make sure and write everything down, don't lose track of what you're trying.

As long as your temps are good, bump it up.

Edit: set all of your RAM timings and voltage manually. And keep them at stock speeds or very close to it while you work on the cpu. That's what I meant by not oc'ing the RAM yet, keep it as close to stock speeds as possible for now. You don't want to have to trouble shoot more than one thing at a time.

#1 cpu
#2 RAM

Good luck.
Edited by crashdummy35 - 7/18/11 at 10:44pm
 
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post #7 of 12
Thread Starter 
so lower my PLL to 1.6, what should I lower my VTT to?
   
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post #8 of 12
Trying to lower the VTT now you'll just end up trying to trouble shoot your instability from two ends. Get it stable first then lower it as far as you can keep it stable at.

Some people do have better luck with a lower PLL but that is mostly extreme overclocking arena where you start seeing not being able to get a 230 baseclock until dropping down the PLL. It won't hurt to try it though as long as the Bus speed in CPUZ stays pretty stable under load.
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post #9 of 12
Quote:
Originally Posted by ~sizzzle~ View Post
Trying to lower the VTT now you'll just end up trying to trouble shoot your instability from two ends. Get it stable first then lower it as far as you can keep it stable at.

Some people do have better luck with a lower PLL but that is mostly extreme overclocking arena where you start seeing not being able to get a 230 baseclock until dropping down the PLL. It won't hurt to try it though as long as the Bus speed in CPUZ stays pretty stable under load.
Some mb does the other way about CPU PLL Voltage.
AsRock board, I needed CPU PLL to be higher to be stable. (1.709 = No good, 1.832 = Stable @ 4.8)
But the OP isn't using asrock so I guess it won't matter but just to let you know lowering that is not always the option for everyone.
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post #10 of 12
If I inferred it is always an option for everyone to lower the PLL my apologies. It is an option to try on the P55 EVGA boards though unlike some some others that won't go below 1.8v. As for rather it will help or hinder yrmv. We have nearly the same board and if he read the guide I wrote ( and not just tried to copy my template ) it was my suggestion to start at 1.8v. That seems to work very well for most of the 760's. Most people seem to want to automatically raise it and it is just my suggestion not to unless there is a reason for it. (needing to stabilize the bus speed)
Edited by ~sizzzle~ - 7/19/11 at 7:10am
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