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Overclocking i7 990x to 4.4Ghz - correct me if I am wrong.

post #1 of 14
Thread Starter 
Based on this article, all you have to do to overclock this monster to 4.4 GHz is to change multiplier to x33.

990x%20cpuz.jpg

I assume with stock voltage the temperature shouldn't jump that much and my h50 with 240 rad should do the job perfectly?

Please correct me if I am wrong because it's sounds way to easy comparing to overclocking i7 920

I guess 1k price point helps with overclocking smile.gif ?
what does it mean unlocked core multilayer?
trade offs?
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post #2 of 14
Quote:
Originally Posted by Born4TheSky;13138724 
Based on this article, all you have to do to overclock this monster to 4.4 GHz is to change multiplier to x33.

990x%20cpuz.jpg

I assume with stock voltage the temperature shouldn't jump that much and my h50 with 240 rad should do the job perfectly?

Please correct me if I am wrong because it's sounds way to easy comparing to overclocking i7 920

I guess 1k price point helps with overclocking smile.gif ?
what does it mean unlocked core multilayer?
trade offs?

Unlocked core multiplier means you can raise the multi as high as you want, making it easier to OC. Yes, more expensive CPU's are usually easier to overclock.
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post #3 of 14
Thread Starter 
so I can just raise multiplier and thats it, I am good to go?
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post #4 of 14
You arent going to just raise the multi to get the cpu to run at 4.4 and thats it... Plus even at stock voltages rasing the CPU MHz will cause heat...

You will need to adjust voltages, and I highly recommend setting all voltages manually, when you start changing things voltages at auto have a strange tendency to auto adjust themselves too high..

Find a bios template for your motherboard and post it here or in the Asus Rampage III thread and I am sure we can get you clocked to 4.2 or 4.4...

The 980 - 990x are the flagship 6 core cpu's and have unlocked multi's, thats why they cost more..Otherwise they arent much different then clocking any other 1366 cpu...

Raise bclk, raise multi if necessary, adjust voltages accordingly, etc.....
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post #5 of 14
sorry, nothing constructive here... But thats a nice cpu biggrin.gif

OK well something constructive.

I can have a perfectly rock stable 24 h p95 tested etc OC at x6 that will become completely unstable at x7 (which btw I do have atm smile.gif)
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post #6 of 14
Thread Starter 
Quote:
Originally Posted by 10acjed;13138787 
You arent going to just raise the multi to get the cpu to run at 4.4 and thats it... Plus even at stock voltages rasing the CPU MHz will cause heat...

You will need to adjust voltages, and I highly recommend setting all voltages manually, when you start changing things voltages at auto have a strange tendency to auto adjust themselves too high..

What's the negative side of just raising multiplier?

Why it's better to have unlocked multiplier?
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post #7 of 14
Quote:
Originally Posted by Born4TheSky;13149299 
What's the negative side of just raising multiplier?

Why it's better to have unlocked multiplier?

A. There is no negative side to raising just the multiplier, all it really does it makes overclocking easier. Having the ability to change the multiplier on the CPU allows you to bring the clocks of the CPU higher without having to mess with the FSB or bus speed, because raising the bus speed also increases the speed of your ram and along with your QPi link and such (This usually creates an unstable situation that requires fine tuning of voltages or memory timings)

So with an unlock multiplier, you just bump up the multiplier and test for stability and increase cpu voltages if needed.
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post #8 of 14
Thread Starter 
Target CPU Frequency XXXXMHz
Target DRAM Frequency XXXXMHz

LN2 Mode []***
QPI Loadline Calibration []***

Sync Mode []
AI Overclock Tuner []
OC From CPU level Up []
CPU Ratio Setting []
CPU Turbo Power Limit []

>CPU Configuration
CPU Ratio Setting []
C1E Support []
Hardware Prefetcher []
Adjacent Cache Line Prefetcher []
Intel(R) Virtualiyation Tech []
CPU TM Function []
Execute Disable Bit []
Intel(R) HT Technology []
Active Processor Cores []
A20M []
Intel(R) SpeedStep(TM) Tech []
Intel(R) C-STATE Tech []
C State package limit setting []

BCLK Frequency []
PCIE Frequency []
DRAM Frequency []
UCLK Frequency []
QPI Link Data Rate []

Memory Configuration Protect []

>DRAM Timing Control
CAS# Latency []
RAS# to CAS# Delay []
RAS# PRE Time []
RAS# ACT Time []
RAS# to RAS# Delay []
REF Cycle Time []
WRITE Recovery Time []
READ to PRE Time []
FOUR ACT WIN Time []
Back-To-BackCAS# Delay []

Timing Mode []
Round Trip Latency on CHA []
Round Trip Latency on CHB []
Round Trip Latency on CHC []

WRITE To READ Delay(DD) []
WRITE To READ Delay(DR) []
WRITE To READ Delay(SR) []
READ To WRITE Delay(DD) []
READ To WRITE Delay(DR) []
READ To WRITE Delay(SR) []
READ To READ Delay(DD) []
READ To READ Delay(DR) []
READ To READ Delay(SR) []
WRITE To WRITE Delay(DD) []
WRITE To WRITE Delay(DR) []
WRITE To WRITE Delay(SR) []

CPU Differential Amplitude []
CPU Clock Skew []
IOH Clock Skew []
Extreme Engine Digi+
Digi+ PWR Mode []
PWR Volt. Control []
Load-Line Calibration []
CPU Voltege OCP []
CPU PWM Frequency []

Extreme OV []
Extreme OC []

CPU Voltage []
CPU PLL Voltage []
QPI/DRAM Core Voltage []
DRAM Bus Voltage []

>DRAM REF Voltages
DRAM DATA REF Voltage on CHA []
DRAM CTRL REF Voltage on CHA []
DRAM DATA REF Voltage on CHB []
DRAM CTRL REF Voltage on CHB []
DRAM DATA REF Voltage on CHC []
DRAM CTRL REF Voltage on CHC []

IOH Voltage []
IOH PCIE Voltage []

ICH Voltage []
ICH PCIE Voltage []

Spread Spectrum Control
CPU Spread Spectrum []
DRAM Spread Spectrum []
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post #9 of 14
i find 200blck then whatever multi you can swing with decent voltage (low as possible) is better for performance, running 1600mhz ram at its rated speeds at 2:8
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post #10 of 14
Thanks Born4TheSky!

I needed the template.
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