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Does memory speed affect overclocking?

post #1 of 18
Thread Starter 
I read a day or two ago that memory speed affects overclocking, is this true? I was planning to get an i7-2600k to overclock @ 5Ghz at the lowest possible voltage with 8GB(2 x 4GB) 1600Mhz Corsair Vengence RAM. The 1866Mhz of the same RAM is $30 more, and I'd be willing to spend that much if it does play a significant role; Both have a CL of 9.

Thank you C:
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post #2 of 18
you may have to loosen timings as you clock higher, but no the speed doesn't effect how high you can OC
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post #3 of 18
Thread Starter 
Okay, 1600Mhz it is.

Thank you
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post #4 of 18
if you mean the higher the default clock, the less stable? No. if a clock is suppose to be ran at 1066, that does not mean if you go up a little higher it will automatically become unstable. Generally it depends on the RAM itself. Some RAM just OCs better than certain ones. I've seen some rediculous OCs and then some that have a heart attack when trying to up 50mhz.
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post #5 of 18
Thread Starter 
Quote:
Originally Posted by jonespwns View Post
if you mean the higher the default clock, the less stable? No. if a clock is suppose to be ran at 1066, that does not mean if you go up a little higher it will automatically become unstable. Generally it depends on the RAM itself. Some RAM just OCs better than certain ones. I've seen some rediculous OCs and then some that have a heart attack when trying to up 50mhz.
Oh no, I'm sorry

I meant does it affect CPU overclocking in any way, not the memory overclocking.
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post #6 of 18
Quote:
Originally Posted by Scytus View Post
Oh no, I'm sorry

I meant does it affect CPU overclocking in any way, not the memory overclocking.
On MY MOBO I can choose something called "linked" and "unlinked" when overclocking. If I choose LINKED the ram and CPU go up. and unlinked means you can choose what your FSB clock is, and your memory clock to what ever you want with out worrying about the CPU also going up.. So basically it depends on what your motherboard will let you do. Generally unlinked is where you want it to be if you are overclocking.
Edited by jonespwns - 4/8/11 at 12:15am
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post #7 of 18
Thread Starter 
Oh i see..
Wow so many aspects to consider when OCing..memory timings, speeds, pll oc, vcore, is there a OC guide that covers the enitre spectrum of adjustments to get the most out of an OC?
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post #8 of 18
Yessir there really is a lot of stuff to be thought about. But once you learn a little bit about the stuff it isnt as bad as it sounds. here is a link to the intel over clocking guide here on OCN. http://www.overclock.net/intel-cpus/...ing-guide.html
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post #9 of 18
I does a little,meaning better overclocking RAM makes it easier to overclock your CPU.Remember the IMC is on the CPU die,so it can effect your overclock.
http://www.newegg.com/Product/Produc...scrollHelpful1
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post #10 of 18
Quote:
Originally Posted by jonespwns View Post
Yessir there really is a lot of stuff to be thought about. But once you learn a little bit about the stuff it isnt as bad as it sounds. here is a link to the intel over clocking guide here on OCN. http://www.overclock.net/intel-cpus/...ing-guide.html
I'm also getting ready to OC for the first time, and have read that guide. While very informative, I've heard from other sources that methods for OCing Sandy Bridge CPUs is different (i.e. OCing through the multiplier, ignoring the BLCK.)

Also, that guide mentions a lot about the CPU: RAM ratio and its importance in system performance. So, while RAM speed doesn't affect your CPU's OC, it does affect the system's overall performance? Are CPU: RAM ratios still relevant?

I've also heard that since Sandy Bridge has a locked BLCK at 100 that it's best to get RAM with a frequency in even hundreds.

I've heard it's of paramount importance to get "undervolted" memory to have more headroom for overclocking. I've heard all of this and am wondering, all things considered, what are good attributes to look for in RAM when OCing?

In short, I'm really confused about the relationship between RAM and the CPU in regards to overclocking
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