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Help getting 1055T to 4Ghz (cuts out when starting prime95) - Page 2

post #11 of 19
Thread Starter 
Thanks for your comments guys!

So a quick recap.. althought there is a lot of debating...

CPU Voltage around 1.4v - 1.5v
NB Voltage around 1.2v - 1.25v

up the RAM voltage from 1.5v to 1.6v (even if only set around 1333Mhz?)

Up the NB freq to around 3000MHz.

And...

Quote:
OP do you have LLC, CnQ or anything like that still enabled in your bios?
I have disabled all of these settings.

I will try this as I have just finished building the system.

Thanks guys, and please keep the helpful comments coming!

Regards,

Kirk.
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post #12 of 19
Thread Starter 
Quote:
Originally Posted by killeraxemannic View Post
I think your NB freq is too high. try dropping it down a tad. Vcore is cpu voltage yes. 1.55v is the MAX for that chip and 1.5v should get you to 4 ghz no problem.
Idealy I would like 4.2GHz but will settle for a stable clock over 4GHz to start. 1.5v hits the red on my warning for the motherboard I use. 1.475 is the very end of the Yellow warning. (If that makes sensce.) LOL

Thanks for your help, what do you think, 1.5v Still?

Regards,

Kirk.
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post #13 of 19
Quote:
Originally Posted by kirkwatson View Post
Thanks for your comments guys!

So a quick recap.. althought there is a lot of debating...

CPU Voltage around 1.4v - 1.5v
NB Voltage around 1.2v - 1.25v

up the RAM voltage from 1.5v to 1.6v (even if only set around 1333Mhz?)

Up the NB freq to around 3000MHz.

And...



I have disabled all of these settings.

I will try this as I have just finished building the system.

Thanks guys, and please keep the helpful comments coming!

Regards,

Kirk.
I would not run your NB freq at 3000 untill you get the system stable. keep it at around 2400 to 2600 to start.
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post #14 of 19
Quote:
Originally Posted by Bull View Post
I would not run your NB freq at 3000 untill you get the system stable. keep it at around 2400 to 2600 to start.
This is how I look for an example:



[IMG][/IMG]
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post #15 of 19
Quote:
Originally Posted by Bull View Post
I would not run your NB freq at 3000 untill you get the system stable. keep it at around 2400 to 2600 to start.
yeah...from what i read, optimal nb is 2600 n above..anyway the increment is on the cpu-nb volt, not the nb..
 
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post #16 of 19
What are ram timings ???????? 9/9/9/24 ??? Or are they tighter ?
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post #17 of 19
Thread Starter 
Quote:
This is how I look for an example:
If i tryed using similar settings, would there be a better chance of a more stable clock, then I can finely tune these settings, for less voltage and stable clock?

Also..

my Ram timings are indicated in the following link:

http://www.overclockers.co.uk/showpr...odid=MY-288-CS

(Yes the timings are 9-9-9-24.)

Should I step up the voltage to 1.6v as stock settings the motherboard set's the memory to 1333MHz ?


Thanks for the feed-back guys!

Regards,

Kirk
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post #18 of 19
Quote:
Originally Posted by kirkwatson View Post
If i tryed using similar settings, would there be a better chance of a more stable clock, then I can finely tune these settings, for less voltage and stable clock?
Quick reminder, every computer is different. I know that's not great advice on a forum for overclocking, but it is true. John Doe may run his XXX Computer on YYY mobo at ZZZ GHz while Jane Doe may get totally dissimilar results with the exact same settings.

People are giving you general guidelines not absolute guaranteed values. Best practice is to get the numbers that are the maximum safe values, make sure you stay under those, and spend a lot of time rebooting over and over and over as you tweak. Lots of people forget this and wonder why their OC isn't working right.

Quick example, in another thread some fellow was asking how to hit 4GHz on his phenom x4, someone suggested he run his FSB at 250MHz since he had the same CPU, same mobo, same most everything, gave him all the same settings. The OP blue screened on anything past 230.

So push your settings (within recommended guidelines here) and just keep tinkering, don't get hung up on the numbers people are throwing out.

EDIT: The link you provided says your RAM runs @ 1.65V, and your screenshot shows your DRAM Volts at 1.5V? Under stress your RAM is not goin to be happy undervolted.
Edited by ocpokey - 2/11/11 at 8:14am
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post #19 of 19
Quote:
Originally Posted by kirkwatson View Post
If i tryed using similar settings, would there be a better chance of a more stable clock, then I can finely tune these settings, for less voltage and stable clock?

Also..

my Ram timings are indicated in the following link:

http://www.overclockers.co.uk/showpr...odid=MY-288-CS

(Yes the timings are 9-9-9-24.)

Should I step up the voltage to 1.6v as stock settings the motherboard set's the memory to 1333MHz ?


Thanks for the feed-back guys!

Regards,

Kirk
You can safely up your dram voltage to 1.65. That will make sure that your memory is stable at stock, and gives you some room to work with if you decide to tighten timings later. Up your CPU-NB voltage to at least 1.3v if you're shooting for 3000 MHz. And definitely get stable at 4.0 GHz before you shoot for 4.2. My 1055T isn't stable at 4.2, even at 1.55v, and I'm using custom water cooling.
    
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