I am currently OC'ing my ci7 920, with gigabyte x58 ud4p & corsair dominator ddr3-1600. I have reach 4.0GHz (200x20). It does boot to OS, but crash after few seconds with IntelTestBurn. Liquid cooled, max temp under load 90degC. (still 1 more fan can be installed on the rad)
Right now I'm running 190x20 only. Hoping to go at least 200x20.
These are my settings:
CPU Ratio Setting: 20.0
BCLK Freq: 200
PCIE Freq: 102
DRAM Freq: DDR3-1600MHz
UCLK Freq: 3600MHz
API Link Data Rate: Auto
CPU Voltage: 1.30v
CPU PLL Voltage: 1.80v
QPI/DRAM Core Voltage: 1.34v
IOH Voltage: 1.11
ICH Voltage: Auto
DRAM Voltage: 1.66v
I have increase the Vcore to 1.40v(200x20), still crash.
While doing test on how high my bclock can go (stabil), I am able to reach 210MHz with QPI/VTT 1.34v.
Highest memory stabil clock 1680MHz with DRAM voltage 1.66v.
Have I reach the limit?
what else can I do?
to get you in the ballpark
21x195 will net you 4.095ghz
cpu volt 1.30-.33v
PLEASE watch your temps, like i stated before you are already saying that your hitting 90*c you may not have a good overclcoking 920.
once you set that in the bios change your ram speed back close to 1600mhz Could you please state what the timmings are on your ram, I tried to look up your ram but can only guess what the timmings are. from what i could deduct they are 8-8-8-24 @1600mhz to get over your 1680mhz problem you might have to open them up to 9-9-9-24.
this thread is also a nice read
Edited by olokul, 21 January 2013 - 05:02 PM.
All four rigs under water
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i5 2600K @ 4.2Ghz -Asus Maximus IV Gene-Z -Mushkin Redline ddr3 8Gb -MSI Twin Frozr II GTX 580 in SLI -Silverstone 1200W
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I dont fail. I just succeed at finding out what doesn't work.