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G.Skill Flare Phenom II x6 optimized memory to the test - Page 2

post #11 of 18
Quote:
Originally Posted by xd_1771 View Post
Increase CPU-NB voltage?
The CPU-NB is the memory controller and with more speed/less timings has more work to do and so may need more voltage to be stable.
Yeah, I know. I've already played around with CPU-NB voltage, all the way up to 1.4 volts. Just couldn't get it stable. Anyway, I can't do anything about it now since I'm in uni and my sig rig is at home in another state.
post #12 of 18
Try increasing NB voltage from 1.1 to 1.2v.
post #13 of 18
Thread Starter 
For a quick test I simply went to BIOS and selected highest CPU/NB Freq I could without changing anything else.

With just a 225hz boost we can already see a huge improvement


With that in hand, I will try to reach a CPU-NB Freq of 2700: I read somewhere AMD recommand RAM Freq X3 for NB.

My first blunt try to directly go there by setting raising bus and lowering multiplier resulted in a forced MemOK CMOS reset Guess I gotta do it little step by little step, likely needing to raise some volt along the way

I'll keep updating as I make progress, however with what I'm seeing at 2266, I feel confident we'll have interesting result down the road
Zatsune
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Zatsune
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post #14 of 18
Quote:
Originally Posted by xd_1771 View Post
Try increasing NB voltage from 1.1 to 1.2v.
Tried that, too, but then heat started to become an issue. My case doesn't have the best airflow.
post #15 of 18
forgive me for necro'ing this.. but was 8-8-8 1800 the best it could do? i'm using 965be and it's hard clocking higher on this and also being stable at the same time
Galbus
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Galbus
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post #16 of 18
np i have the cl 9 1800 memory and i have reached maxxmem score of 11.00 GB/s..

This is at 1800
8-9-8-23-1t i beleive with a 3000 NB or a lil higher

but i have clocked them back to stock so ya nothing really different from his scores other than the board im running on is the CHIV

i think these can get to 7 but i havent gotten them stable at cl 7 at 1800..no proper cooling for the cpu (need to reach 4.5 with h50 in this warm air not to grand nor will case keep cold house is warm)
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post #17 of 18
Yes, CPU-NB Frequency should be 3X DRAM bus frequency. DDR3-1600 -> 2400MHz DDR3-1866 (DDR3-1864) -> 2800MHz (2796MHz) DDR3-2000 -> 3000MHz

As you increase CPU-NB Frequency, DRAM Frequency, and/or RAM capacity, you will need to start raising CPU-NB Voltage.

Try to avoid random changes, you should always know exactly what the change will do or at least have an idea.

Tim


Quote:
Originally Posted by rem0te View Post
For a quick test I simply went to BIOS and selected highest CPU/NB Freq I could without changing anything else.

With just a 225hz boost we can already see a huge improvement


With that in hand, I will try to reach a CPU-NB Freq of 2700: I read somewhere AMD recommand RAM Freq X3 for NB.

My first blunt try to directly go there by setting raising bus and lowering multiplier resulted in a forced MemOK CMOS reset Guess I gotta do it little step by little step, likely needing to raise some volt along the way

I'll keep updating as I make progress, however with what I'm seeing at 2266, I feel confident we'll have interesting result down the road
post #18 of 18
Quote:
Originally Posted by badatgames18 View Post
forgive me for necro'ing this.. but was 8-8-8 1800 the best it could do? i'm using 965be and it's hard clocking higher on this and also being stable at the same time
Been playing around with my set of sticks recently, too. Currently running Prime95 at 2000MHz 7-9-7-24-1T @ 1.67 DRAM voltage. I suggest you look at chew*'s writeup about these sticks. He hits some impressive speeds and timings with them. He used a set of sticks with default frequency of 2000Mhz and timings of 7-9-7, but this should reflect the performance of all of the Flare kits because as far as I know, G.Skill randomly binned these sticks.

http://www.techreaction.net/2010/09/...dr3-2000mhz/2/

At 1800MHz, he does 6-8-6-20-1T with 1.688 DRAM voltage. Don't go over 1.69 for a 24/7 overclock and you should be fine.
Edited by decimator - 10/19/11 at 6:44pm
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