Overclocking CPU - clock randomly changes

S

spamzillla

New Member
I've just overclocked my CPU bus (Intel E7200 2.53ghz) from 266mhz to 271mhz, ran OCCT v2 and everything is stable. However, the CPU clock on OCCT v2 and RealTemp randomly changes from like below 2.53ghz and above. When I run a stable test using OCCT, the clock speed stays the same. Should I be worried? If so please explain why(I've never done this before).

I'm currently running another stable test having OC'd the bus clock to 285mhz and have reached a cpu clock of 2.7ghz.

Cheers!
 
Intel Speedstep, it clocks down when CPU draw is not needed and ramps up when it is. It saves expending wasted energy (heat) by ticking over until it's needed.
 
750w hi-point atx 24-pin psu

TFT said:
Intel Speedstep, it clocks down when CPU draw is not needed and ramps up when it is. It saves expending wasted energy (heat) by ticking over until it's needed.
Click to expand...

Excellent, that's what I thought something like that maybe happening. I'll read up on it now, thanks!
 
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So far I've OC'd my CPU to 3.04ghz and all is running stable and cool. I'm going to try to hit 3.5+ghz in the next few days.

One question; why in System Properties does it recognise my CPU as 2.53ghz and 3.04ghz? I would post a screenie, but I've turned off my PC for the night. Is this just a bug in server 2003 64 bit or is it "usual" behaviour?
 
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If it says something like this:
Intel E7200 2.53Ghz
3.04Ghz
Thats normal, its showing its stock speed of the e7200.
 
there are different cpu technologies that intel uses to decrease power usage and/or cpu heat. they call them different things but basically it underclocks it for one reason or another.

the only technology i leave enabled in my bios is virtualization technology because it has nothing to do with underclocking the cpu.

EIST, cpu throttling, any other technologies like that are really unnecessary unless you're worried about saving every dollar possible on your electric bill.
 
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lol, that and it increases the life of your components by not having as much voltage running through it all the time.
 
Thanks for the great replies guys. I do try to check Google, but without knowing what something is called, searching is quite difficult.

It's great to see that my new PSU has lowered the CPU core temps by like 10 degrees for core 0 and 5-6 for core 1 :D (Those temps were the idle temps when OC'd at 3.04ghz!!)

Probably Sunday I'm going to see how far I can push the E7200, and from what I've read, I could be able to hit 4ghz! Not sure if I want to OC it that much though.
 
Just to reiterate what was said earlier, it is SpeedStep/C1E, etc that is causing it to downclock when there is little to no load on the system.
 
The max I can seem to OC my processor without it crashing is 3.09ghz.

FSB is at 325. If I up it to 330, it'll BSOD and the multiplier is locked at 9.5

How else can I increase the CPU clock?

Intel E7200 CPU
Gigabyte GA-P31-DS3L Intel P31 (Socket 775) PCI-Express DDR2 Motherboard
 
ramodkk said:
You could bump the voltage one notch and try to boot.
Click to expand...

This seems to be working! The stable test is currently running and idle temps have dropped from like 31 35 to 29 32.

I also lowered the memory clock. It was on auto and had moved from 800 to 960. I've moved it back down too 825 and may bump it up later.

Over all, at 330 FSB, voltage slightly increased and memory clock decreased (but over default), things are running cool and seemingly stable!

CPU clock 3.13ghz

I know I'm rambling, but feel free to suggest anything :D
 
I've overlocked my CPU to 3.42ghz, its still running cool and cpu voltage is at 1.1625v.

I am happy with this OC speed, however everything seems to lag a little, but not the mouse. Eg dragging a windows a few inches takes forever. If I up the voltage a few notches, could this lag issue be solved? Or will i have to reduce to clock speed?

**edit**

A defrag + chkdsk sorted the lag problem out.
 
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