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How to I get my 2500k...

Disable speedstep in the bios I believe.

There really is no need to though as it just wastes power running at full speed all the time. It will speed up when needed and slow down again so IMO it's best just to leave it as it is.
 
Leave it on, it does no harm. IIRC you can't disable SpeedStep without also disabling overclocking ability in the unlocked Sandy Bridge chips anyway.
 
bigmac121 said:
Running at full speed all the time?
I did this to my q8200 but cannot remember!!

Cheers
Click to expand...

dude its like a car, it only revs the engine up when power is needed, otherwise it sits on idle revs, leave it on, otherwise like a car you are wasting energy/petrol.

there is no reason what so ever you would want your cars engine at full rev's constantly so why would you do that to your pc?
 
What is it with people who try to put off people wanting to do what they want to do! Give the guy a solution not a lecture :D

full speed - it depends on your bios. If turning off speedstep does not work look for

CPU Ratio 'allows use to adjust the maximum non turbo CPU Ratio'

This is probably set at 16 by default so set it to the same as your turbo / O/C ratio. Note that you may then need to set the min volts, but also disable any Additional Turbo Voltage.

BTW, I always wonder if turbo mode is a marketeers inception.

The boffins produce a chip with throttling, to protect the chip if it runs too long and too hot; the chip throttles down to save juice.

'Throttling dynamically adjusts speed if your CPU is hot enough'

Markeeters take the idea and spin it around:

'Turbo dynamically adjusts speed if your CPU is cool enough'.

Exactly the same but one shows the technology to be negative for the customer, the other positive for the customer.
 
Frank_Rizzo said:
Pointless for some, yes, but for others there is a requirement to run a rig at it's full speed 24/7.
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but if the rig is rquired to be run at full speed (the apps require it) then the cpu will regardless of whether speedstep is on, as my understanding is it will run at the speed the apps require, therefore saving power and electricity.
 
There is latency. Takes time to spin up and to poll load requirements.

Car analogy is a rolling start compared to starting on the grid. Starting on the grid produce a slower lap time than the second lap.
 
PC 24/7 but the required app may be on demand: when you want it to run you want it immediately, and not wait for the speed to ramp up.

The app may only run for milliseconds, rest for seconds and then activate again. It is the rest time which lowers the speed such that the next start will be slow speed and need to ramp up. Leaving it on max speed 24/7 will prevent this startup lag.
 
Frank_Rizzo said:
PC 24/7 but the required app may be on demand: when you want it to run you want it immediately, and not wait for the speed to ramp up.

The app may only run for milliseconds, rest for seconds and then activate again. It is the rest time which lowers the speed such that the next start will be slow speed and need to ramp up. Leaving it on max speed 24/7 will prevent this startup lag.
Click to expand...

but generate un-needed power consumption and temps surely?
 
Frank_Rizzo said:
PC 24/7 but the required app may be on demand: when you want it to run you want it immediately, and not wait for the speed to ramp up.

The app may only run for milliseconds, rest for seconds and then activate again. It is the rest time which lowers the speed such that the next start will be slow speed and need to ramp up. Leaving it on max speed 24/7 will prevent this startup lag.
Click to expand...

do you know how fast a 2500K is? even at 1.6GHz, it will handle most applications with ease and power up to 3.3GHz when needed.

the time it takes to switch from 1.6GHz to 3.3GHz is negligible.

Like your rolling start analogy, the cpu is always rolling at a minimum of 1.6GHz, which is powerful enough to do a lot of things. It never runs at 0 GHz. Therefore your analogy and disabling speedstep is pointless. By disabling speedstep it will be rolling at 3.3GHz instead of 1.6GHz. granted thats double the speed, it takes less than the blink of an eye for it to go from 1.6GHz to 3.3GHz negating any reasoning behind leaving it on 3.3GHz 24/7

Now if it took 10 seconds for the cpu to jump from 1.6GHz to 3.3GHz then you may have a point, but it does it almost instantly.
 
I am curious then....

if the CPU runs at 1.6 when not under load, if you fired up CPUZ what speed would be reported ? Would it show as being 3.3ghz or would it just show a snapshot of what it is currently running at.

If you are benchmarking you would want the speed to be fixed at its max rather than starting low and ramping on demand ? e.g I am going to run superpi test, chip is currently tooting along at 1.6, superpi fires up, system goes 'need more power to the engines Scotty !!!!!!', CPU puts pedal to the metal and increases speed to meet demand. Does it fire straight up to 3.3 or what ever speed you clocked or does it just carry on ramping up at a certain rate until process finishes or until it hits max speed and continues process to completion ?

Man I am confused !!!!!
 
wildman said:
I am curious then....

if the CPU runs at 1.6 when not under load, if you fired up CPUZ what speed would be reported ? Would it show as being 3.3ghz or would it just show a snapshot of what it is currently running at.

If you are benchmarking you would want the speed to be fixed at its max rather than starting low and ramping on demand ? e.g I am going to run superpi test, chip is currently tooting along at 1.6, superpi fires up, system goes 'need more power to the engines Scotty !!!!!!', CPU puts pedal to the metal and increases speed to meet demand. Does it fire straight up to 3.3 or what ever speed you clocked or does it just carry on ramping up at a certain rate until process finishes or until it hits max speed and continues process to completion ?

Man I am confused !!!!!
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it will show as 1.6GHz in cpu-z until its under load.
as for benching, it normally gets the cpu up to full speed when loading the bench test settings i believe so the results would not be affected. if you are doing something that is stressing the cpu then it will run at 100% for the duration.
 
wildman said:
I am curious then....

if the CPU runs at 1.6 when not under load, if you fired up CPUZ what speed would be reported ? Would it show as being 3.3ghz or would it just show a snapshot of what it is currently running at.

If you are benchmarking you would want the speed to be fixed at its max rather than starting low and ramping on demand ? e.g I am going to run superpi test, chip is currently tooting along at 1.6, superpi fires up, system goes 'need more power to the engines Scotty !!!!!!', CPU puts pedal to the metal and increases speed to meet demand. Does it fire straight up to 3.3 or what ever speed you clocked or does it just carry on ramping up at a certain rate until process finishes or until it hits max speed and continues process to completion ?

Man I am confused !!!!!
Click to expand...

would show as 1.6GHz if your idle or using little resources, if your running something intensive in the background it will show as 3.3GHz.

there is no reason to turn speedstep off, unless you are overclocking. even then it is suggested you leave it on some boards.

its basically saving you energy when you dont need to use the cpu. it takes less than the blink of an eye to go from 1.6 to 3.3, so it would not affect any applications or benchmarks. it switches instantly.
 
Psycho Sonny said:
would show as 1.6GHz if your idle or using little resources, if your running something intensive in the background it will show as 3.3GHz.

there is no reason to turn speedstep off, unless you are overclocking. even then it is suggested you leave it on some boards.

its basically saving you energy when you dont need to use the cpu. it takes less than the blink of an eye to go from 1.6 to 3.3, so it would not affect any applications or benchmarks. it switches instantly.
Click to expand...

Ok I think I understand so it effectively 2 settings 1.6ghz when idle and max speed 3.3 with no values in between, e.g I am playing crysis which is a system beast and it needs all 3.3ghz, then I decide I am bored of playing crysis for taoday and I want to play solitaire, because the applciaiton is running ti would still increase to 3.3 even though this application is not as resource intensive as crysis ?
 
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