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2500K - Stuck at 4.6 -Help me Soar - Page 2

post #11 of 24
Quote:
Originally Posted by CtrlAltElite View Post
But make sure your ram is rated for 1.5v. If your ram is rated for 1.65v, dont put it at 1.5
I hate to stress this out - this only applies if you want to take your chip to 5ghz or higher. At least this is according to Intel.
post #12 of 24
For 5ghz, I would start with 1.52vcore
Blck - 100
CPU ratio - 50
PLL - enable
Mem timing - leave it on auto for now
LLC - Ultra
Phase - extreme
CPU - 100%
Vcore - 1.52, if you can boot and run everything, then start lowering it until get the lowest stable vcore.
Disable spread spectrum and leave all other setting on auto.
Hope that helps.
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post #13 of 24
Thread Starter 
Quote:
Originally Posted by _s3v3n_ View Post
I hate to stress this out - this only applies if you want to take your chip to 5ghz or higher. At least this is according to Intel.
I am not quite sure I understand, should I try to drop the DRAM down to 1.55 or 1.6 or leave it be since it is rated at 1.65?

What is the danger of under-volting the memory besides instability?
post #14 of 24
deleted, sorry double post.
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post #15 of 24
Quote:
Originally Posted by bce22 View Post
Thanks for the recommendations. One quick question what exactly does the CPU Setting of 100%, 110%, etc do? I don't really understand this setting.

On my pro board I Ultra high is the second highest Vdroop control setting. The only higher is Extreme. I have mine set to Ultra High. Is it your recommendation to use the highest Extreme setting? Isn't the an issue with using this high of an LLC were that under load the voltage actually raises? I thought that I read in the past on this board that you do not want the vcore to raise above the set amount under load.

I also have Phase set to extreme already. If I remember correctly this setting changes the reading from temp to volts.

My crucual ballistix RAM is rated at 1.65 volts. All I have done for RAM is set the speed, timings and voltage to the recommended levels. I haven't tried overclocking my memory at all since on my last build I killed 2 sticks of RAM with very very mild over-volts and tighter timings.

Should I have be touching the VCC, VCCIO and other volts to stabilize a higher overclock. I am not quite certain how these other volts can help.

Thanks again!
This is a very helpful thread for VRM basics that address a lot of your questions http://www.overclock.net/intel-mothe...rrent-vrm.html
There are great explanations of the feature on your specific motherboard.

No need to touch the VCC and VCCIO for 5GHZ overclock, the Auto settings are actually preferred unless you really know what your doing but even then the the auto setting still does an excellent job.
post #16 of 24
Quote:
Originally Posted by hirolla888 View Post
To get 5GHz this is what you do:

BCLK: 100
Turbo: 50
PLL: enabled
Mem: 1600 (timings 8-8-8-24)
LLC: Ultra
VRM: AUTO
Phase: Extreme
CPU: 130%
Vcore: SOMEWHERE BETWEEN 1.42-1.46 judging by your 4.6 @ 1.385v (your going to have to test)
DRAM: 1.65
Other Volts: AUTO
Spread Spec: AUTO
ASUS recommends VRM frequency to be manually set to 350 for 48+ multiplier. I haven't had the chance to play with it yet, so I don't know what sort of difference it makes ..
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post #17 of 24
Quote:
Originally Posted by AJsez View Post
For 5ghz, I would start with 1.52vcore
Blck - 100
CPU ratio - 50
PLL - enable
Mem timing - leave it on auto for now
LLC - Ultra
Phase - extreme
CPU - 100%
Vcore - 1.52, if you can boot and run everything, then start lowering it until get the lowest stable vcore.
Disable spread spectrum and leave all other setting on auto.
Hope that helps.
I'm going to respectfully disagree, THAT IS WAY TOO HIGH OF A VCORE FOR 5Ghz. The more logical approach (based on his current overclock) would be to start at 1.48v mark and lower from there.
post #18 of 24
Quote:
Originally Posted by bce22 View Post
I am not quite sure I understand, should I try to drop the DRAM down to 1.55 or 1.6 or leave it be since it is rated at 1.65?

What is the danger of under-volting the memory besides instability?
The danger resides in IMC - there is a possibility of frying it due from too much memory voltage.

I can't really suggest of anything like undervolting your current memory since I have never used a 1.65v rated RAM on a Sandy Bridge rig.

I got 2600k (sig rig) and gave the Burrage B2 board with 2500k to my wife - both are using 1.5v rated RAM so I never had to deal with this issue.
Edited by _s3v3n_ - 5/17/11 at 8:44am
post #19 of 24
Quote:
Originally Posted by JCG View Post
ASUS recommends VRM frequency to be manually set to 350 for 48+ multiplier. I haven't had the chance to play with it yet, so I don't know what sort of difference it makes ..
Well that's something I wasn't aware of , is this info on their website? or in the mobo manual?
post #20 of 24
Quote:
Originally Posted by hirolla888 View Post
I'm going to respectfully disagree, THAT IS WAY TOO HIGH OF A VCORE FOR 5Ghz. The more logical approach (based on his current overclock) would be to start at 1.48v mark and lower from there.
Did you noticed that I said to start form 1.52 then to lowered until he can acheive a minimum stable vcore
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