15 2500K - please help OC to 4.8ghz

[pc_monkey]

[solved] i5 2500K - please help OC to 4.8ghz

Hi all
I am really struggling to OC my chip to 4.8ghz.

[SOLVED]

Internal PLL overvoltage : AUTO

CPU manual voltage : 1.35
VCCIO : AUTO
CPU PLL : 1.725

Load Line Calibration : Extreme
VRM Frequency : Auto
Phase Control : Extreme
Duty Control : Extreme
CPU Current Capability : 100%

other settings are at their default.

CPU voltage and Temps under stress:

IBT and Prime95 : VCore fluctuates up to 1.376 maximum, and delta Temp up to a maximum 53 deg Celcius (temp reading - room temp).

I have only tested Prime95 for 30 minutes for each test, small FFTs, In-place large FFTs, and blend.

For IBT I have ran a custom stress level of 6000MB, and 10x run.

 

[Vespasian777]

What's BCLK/DMI/PEG Frequency on? Try it between 1005-1010. See if that helps.

 

[RichH]

I would wager good money that enabling PLL overvoltage will get you there.

 

[RichH]

My 5.0Ghz settings here: http://forums.overclockers.co.uk/showthread.php?t=18350280

 

[pc_monkey]

My 5.0Ghz settings here: http://forums.overclockers.co.uk/showthread.php?t=18350280

What was your room temp and what cpu cooler do you use

 

[pc_monkey]

managed to OC up to a stable 4.7Ghz with acceptable temps. Will post settings later.

 

[RichH]

What was your room temp and what cpu cooler do you use

That is with a 2500k and room temp around 21 degrees.

 

[RichH]

What was your room temp and what cpu cooler do you use

Sorry you asked about CPU cooler, not CPU. The cooler is a NH 14D.

 

[pc_monkey]

Sorry you asked about CPU cooler, not CPU. The cooler is a NH 14D.

cheers

I have updated the first post with my settings now.

 

[RichH]

Try enabling PPL overvoltage.

 

[pc_monkey]

Settings updated and screen shots added.