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how can i overclock my ram???

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  • Memory
  • Overclocking
Last response: in Overclocking
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April 18, 2013 8:17:19 PM

ok , i have a nice stable overclock on my cpu , im running i5 3570k on a gigabyte ga-z77x-ud5h but for some reason i can not get my memory to overclock , its corsair vengeance i got two 4 gb kits 1866 , part # cmz8gx3m2a1866c9... i can not get this memory to overclock for squat , has anybody had any luck overclocking these ?? or does anybody know of any timings anything?? not that i need to overclock these , but corsair says they are very overclockable , and i just havent had any luck at all

my system
i5 3570k @4.6ghz cooled by H80i
gigabyte ga-z77x-ud5h
16gb 4x4gb corsair vengeance 1866
180gb corsair force ssd
2tb seagate barracuda hdd
msi-r6950-twin frozr II OC
corsair CX750m psu
nzxt phantom 410

More about : overclock ram

a c 151 } Memory
a c 106 K Overclocking
April 18, 2013 9:07:16 PM

Complete waste of time. You gain nothing and only add heat to the CPU as you have to overclock the IMC to overclock the RAM. You see gains of 0 in gaming and gains in the 1% range with tasks like video encoding going over DDR3 1600. The IMC just does not need faster RAM.
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a b K Overclocking
April 18, 2013 10:11:46 PM

You will have to raise VCCIO voltage and dimm voltage to get anything out of them IMO it's best to tune cut timings where possible, copy all your xmp secondary timings down and set those manually, first thing to change is Command rate you want to go for command rate 1 or if its already 1 command rate 0. Focus on your first four timings, this is all trial and error lower each one by one untill you find your optimal settings you'll want to run a benchmark after each time you change anything to see how it affected your memory bandwith. Small changes in ram frequency can be made by raising BCLK, raising System agent voltage helps with this.
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a c 151 } Memory
a c 106 K Overclocking
April 18, 2013 10:23:38 PM

hdeezie80 said:
You will have to raise VCCIO voltage and dimm voltage to get anything out of them IMO it's best to tune cut timings where possible, copy all your xmp secondary timings down and set those manually, first thing to change is Command rate you want to go for command rate 1 or if its already 1 command rate 0. Focus on your first four timings, this is all trial and error lower each one by one untill you find your optimal settings you'll want to run a benchmark after each time you change anything to see how it affected your memory bandwith. Small changes in ram frequency can be made by raising BCLK, raising System agent voltage helps with this.


Z77 is not Z79. Raising BCLK is dangerous on LGA 1155.
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a b K Overclocking
April 18, 2013 11:37:48 PM

@ anort3 Yeah i've overclocked a few Z77 rigs I got one sitting in the other room lol, no you don't want to overclock solely on BCLK up to 105 is pretty harmless though if you just want to see higher memory frequencies. Otherwise to hit 2000 MHz you will have to crank the VCCIO up quite a bit.
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April 19, 2013 12:29:31 PM

ive tried everything , its just this ram will not overclock , 1866 is all u get
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