i7 OC Please?

Sneakk

Junior Member
Apr 17, 2011
3
0
0
Hey,
im new to the forum and was wondering if anyone can help me OC my i7 ? its my 1st time OC aswell so i sorry for everything :D

Thanks.
 
Nov 26, 2005
15,197
403
126
Hi and Welcome to the forums :)

Why don't you tell us a little bit about your rig you are trying to overclock.

Help us help you.
 

aigomorla

CPU, Cases&Cooling Mod PC Gaming Mod Elite Member
Super Moderator
Sep 28, 2005
21,131
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http://forums.anandtech.com/showthread.php?t=230509

Start reading and learning.

no one will hand walk you, because u need to learn what your doing, and what each value u change does.

This way, if your cpu degrades, and trust me, they do degrade... and u lose oc after years of fun, if you dont know what to do, then you will be in big trouble.

Also if your playing with your system and your system fails to hold OC, you will need to learn how to reset cmos.

Overclocking should only be done when u have grasp'd concepts of voltage + heat.

Without knowing both of those... your only asking for trouble.
 

Sneakk

Junior Member
Apr 17, 2011
3
0
0
I Have,

i7 920 (2.67GHZ)
6GB OCZ RAM
X58A-GD65 Motherboard,
Artic 7 Freezer CPU Cooler,
5770 1GB In Crossfire,
700W OCZ PSU,
And 1.5TB HDD'S

Thanks :)
 

LiuKangBakinPie

Diamond Member
Jan 31, 2011
3,903
0
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clear your cmos first

these are the important things you must know

CPU frequency = bclock x CPU clock ratio
This is a biggest change from the old LGA 775 where FSB and multiplier determined the CPU speed. The base clock is similar to the FSB but also has some key differences. The bclock is the basis for all the other frequencies

QPI frequency = bclock x QPI clock ratio
QPI is the Intel communication path between the CPU and the X58 chipset on the motherboard. So all devices not controlled on the CPU die itself have to communicate with the CPU via the QPI.

Uncore frequency = bclock x uncore clock ratio
Uncore is everything on the die that is not “core”, primarily, the memory controller and the L3 cache. ->VTT voltage.

Memory frequency = bclock x System Memory Multiplier (SPD)
Memory is shown in the BIOS as a multiplier of 6, 8, 10, etc

CPU Vcore – Directly related to the CPU frequency
QPI/VTT voltage – This is the uncore voltage.
DRAM voltage – This is directly related to your RAM modules and increases will allow increase in MEM speeds
default VTT is 1.15V and the DRAM voltage has to stay within 0.5V of the VTT

now all you do is Maximize Bclock & uncore Frequency. start by entering the BIOS and select “load optimized defaults”, then save and exit. After the reboot, go back into the BIOS and turn off the start-up slash screen, so that you can view your system’s post behavior. Also, feel free to disable any “integrated peripherals” that will not be used (i.e. NICs, extra PATA/SATA controllers, legacy devices, etc). All other overclocking settings you can leave on auto. disable all power saving features. These include, but are not limited to; EIST, C1E, and all other C-states.

you need to isolate the bclock, because all other major devices derive their frequencies from the bclock. In order to isolate the bclock, the first thing you need to do is manually force a low multiplier for the CPU.

isolate the bclock from the memory by dropping the multiplier normally 8 to its lowest

Lock in your desired uncore clock ratio. the the uncore clock ratio must be set to double the System Memory Multiplier (SPD). remeber set the uncore clock ratio based on your desired System Memory Multiplier (SPD) (not the temporary memory multiplier your using right now.

then IOH Core voltage-----> if you are running a single PCIe card (gpu), give the IOH Core 1.1V
QPI/VTT voltage--------> 1.2V
safe it reboot back into bios
bclock-------> from 133MHz to 150MHz.
save and exit and allow the system to reboot into windows

start up RealTemp. start up CPU-Z. run 3 loops with IntelBurnTest
If the test ran without error, raise the bclock by 10MHz, reboot into your OS and run the test again.
If the test failed, raise the QPI/VTT voltage by 0.025V, reboot into your OS and run the test again.
Continue to repeat this till you reach the same bclock speed you wanted or reach your maximum safe QPI/VTT voltage (1.3v) or Raising the QPI/VTT voltage is ineffective in stabilizing the system
 
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Sneakk

Junior Member
Apr 17, 2011
3
0
0
i did all that, got it from 2.6Ghz to 2.7Ghz tryed 2.8 and nah wont go no more, computer turns on but nothing come on screen :/ HELP ?
 

alcoholbob

Diamond Member
May 24, 2005
6,390
470
126
I would lower the RAM ratio, something to like 2:8 or 2:6 if you plan to overclock. CPUs are easy to overclock; all you really need to do is increase the core voltage. I could never get my overclock up without reducing the ratio for the ram. Guess I had crappy sticks.

Also some motherboards have a "dummy OC" feature if you are really lazy, but usually the voltages get over-jacked and all you get is a mild OC.