CPU Multiplier question

[Jamie1994]

Hey, I overclocked my E5200 to 3Ghz on stock volts and I'm noticing on CPUZ and other info programs that when my CPU is not under load the multiplier is halfed, I heard something about intel putting this feature on their CPU to reduce power consumption, and I was wondering if there is a way to turn it off.

Think its called Intel Speedsafe or something

I have a GA-EP43-DS3L (F9a BIOS)

Quick side note i OC'ed my CPU to 3ghz and my RAM to 800mhz (from 667) at 1.9 volts (it was 1.8) does this sound safe? I'm a complete noob at OCing. Temps are 45-49 Idle, 50-55 Load on a crappy Intel Stock fan

Thanks In Advance

 

[Keyser Soze]

It's speedstep i think.

Turn off EIST.

Once you are happy with your overclock you can turn it back on. It will save you some leccy.

edit.
CPU Enhanced Halt (C1E) (Note)
Enables or disables Intel® CPU Enhanced Halt (C1E) function, a CPU power-saving function in
system halt state. When enabled, the CPU core frequency and voltage will be reduced during
system halt state to decrease power consumption. (Default: Enabled)

CPU Thermal Monitor 2 (TM2) (Note)
Enables or disables Intel® CPU Thermal Monitor (TM2) function, a CPU overheating protection
function. When enabled, the CPU core frequency and voltage will be reduced when the CPU is
overheated. (Default: Enabled)

CPU EIST Function (Note)
Enables or disables Enhanced Intel SpeedStep Technology (EIST). Depending on CPU loading,
Intel® EIST technology can dynamically and effectively lower the CPU voltage and core frequency
to decrease average power consumption and heat production. (Default: Enabled)

 

[Jamie1994]

Thank you very much

 

[Audigex]

The CPU shouldn't have any problem at all at 3gHz - they're hitting 3.6 without too much trouble. The RAM will likely be okay, depending on quality.

There's little point turning speed step off unless your CPU becomes unstable when idling, it saves you money and should increase the lifespan of your CPU.

 

[Jamie1994]

Been running prime95 for about 30 minutes now, temps round about 60-62

Is this thing stable for as long as prime95 doesnt crash, or am I waiting for something to tell me its stable

(Also what does TJ stand for, as in Real Temp's "Distance to TJ Max".)

 

[Audigex]

For a 100% stable system you should have several sessions of stress testing each for several hours (or max time, if less)

It's all about perspective. For most people, their PC won't ever have to run 100% load for 12 hours straight, ever; so they're happy with a PC that might crash after 8 hours or more. It's just not realistically likely to be a problem.

Others aren't happy until they've completely blitzed it for a week straight and the thing still won't die.

 

[StephenLawUK]

TJmax is the temperature where you CPU will degrade cause of heat but it isnt a good idea to push your chip anywhere near that.