Intel 2500k o.c

Azurite

New member
Today i will overclock my new cpu for my lan rig. Im just making this thread incase i stumble upon any problems. Im not new to overclocking so i think i will manage just fine. Anyhow, i might ask for some suggestions later on. Will also post a few benches, screenshots and what settings im using. Starting to o.c in 2h or so
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Today i will overclock my new cpu for my lan rig. Im just making this thread incase i stumble upon any problems. Im not new to overclocking so i think i will manage just fine. Anyhow, i might ask for some suggestions later on. Will also post a few benches, screenshots and what settings im using. Starting to o.c in 2h or so
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Cool. Waiting for some nice results.
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This is the settings im going to use:

BCLK - 100

Turbo Ratio - By all cores

By all Cores - 45 or 46

Internal PLL overvoltage - enabled

Epu powersaving mode- Disable

Speed step - enabled. If you think this is damaging for the cpu let me know. When idling i would like to save some power and have less heat.

OC Tuner- Cancel/disable

Load Line Calibration - Extreme

Phase Control - Extreme

Duty Control - Extreme

Cpu current capability- 100%

Cpu voltage-manual-1.275-1.35. Will try and use absolutely the lowest stable vcore. Just hoping i got a good chip.

VCCSA Voltage - 1v Edit: 0.971v

VCCIO Voltage - 1.1v Edit: 1.0815v

CPU PLL Voltage- 1.9v

Auto spread sectrum- Disable

Limit cpuid maximum- Disabled

Intel virtualization tech- Disable

Enhanced speedstep tech- Enable

Cpu C1E- Disable

Cpu C3- Disable

Cpu C6- Disable


Found this recipe, and i liked it. Been comparing it with alot of other settings.

If you got any other suggestions or if you think enabling speedstep is a bad idea. Let me know. Will try this set up and see if im happy with it, and im aiming for 4,5 or 4,6ghz for a 24/7 o.c.
 
Looks great. I have a question though, is the VCCSA the voltage that controls the whole of the memory controllers all the way to the PCIE/PCI lanes? And what's the difference between the VCCSA and the VCCIO?
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Looks great. I have a question though, is the VCCSA the voltage that controls the whole of the memory controllers all the way to the PCIE/PCI lanes? And what's the difference between the VCCSA and the VCCIO?
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"VCCSA is your agent voltage. It It powers everything that is not controlled by the PLL. It controls the allocated power to your CPU" Stock is 0.925v and should not be raised higher than 0.971v

VCCIO: VCCIO (I/O Supplied voltage): The stock is 1.05v and should not be raised over 1.0815v

Im gonna lower both of these a bit. Or i could try just to leave them at stock for starters. What do you think?
 
This is the settings im going to use:

BCLK - 100

Turbo Ratio - By all cores

By all Cores - 45 or 46

Internal PLL overvoltage - enabled

Epu powersaving mode- Disable

Speed step - enabled. If you think this is damaging for the cpu let me know. When idling i would like to save some power and have less heat.

OC Tuner- Cancel/disable

Load Line Calibration - Extreme

Phase Control - Extreme

Duty Control - Extreme

Cpu current capability- 100%

Cpu voltage-manual-1.275-1.35. Will try and use absolutely the lowest stable vcore. Just hoping i got a good chip.

VCCSA Voltage - 1v

VCCIO Voltage - 1.1v

CPU PLL Voltage- 1.9v

Auto spread sectrum- Disable

Limit cpuid maximum- Disabled

Intel virtualization tech- Disable

Enhanced speedstep tech- Enable

Cpu C1E- Disable

Cpu C3- Disable

Cpu C6- Disable


Found this recipe, and i liked it. Been comparing it with alot of other settings.

If you got any other suggestions or if you think enabling speedstep is a bad idea. Let me know. Will try this set up and see if im happy with it, and im aiming for 4,5 or 4,6ghz for a 24/7 o.c.

I tried this overclock earlier, only gets me to 4.2 hmm.
 
"VCCSA is your agent voltage. It It powers everything that is not controlled by the PLL. It controls the allocated power to your CPU" Stock is 0.925v and should not be raised higher than 0.971v

VCCIO: VCCIO (I/O Supplied voltage): The stock is 1.05v and should not be raised over 1.0815v

Im gonna lower both of these a bit. Or i could try just to leave them at stock for starters. What do you think?

Oh thanks for the info. Got to read more on this as it will definitely help when OC-ing. I think you should test your stability first with stock settings for those and then after the OC is stable, you can try to see if those voltages can go any lower. Any suggested places for good explainations on all these voltages?
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Almost booted into windows at 4.5ghz 1.35vcore. I was hoping i could use less volts then this, but as long as under 1.4v im satisfied. Got so many options with this mobo im using. Gonna try again now, and just leave VCCSA, VCCIO, PLL at auto.
 
Almost booted into windows at 4.5ghz 1.35vcore. I was hoping i could use less volts then this, but as long as under 1.4v im satisfied. Got so many options with this mobo im using. Gonna try again now, and just leave VCCSA, VCCIO, PLL at auto.

Hey that's great; keep up the good work.
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Seems your chip needs more V pass 4.0GHz, but I think as long as it doesn't need to go over 1.4V then it should be fine.
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well it seems there are a number of opinions floating around when it comes to safe volts on sandy... i have read on may forums that you should not put more than 1.38v on the core and for 24/7 you should not go beyond 1.35
 
The highest safe voltage for Sandy Bridge is always being debated, apparently the revised Intel number is 1.45 on Vcore. People do push beyond that. Routinely you see guys doing 1.5 volts. That's a bit high for my comfort zone.
 
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