Tom's Hardware > Forum > CPU & Components > CPUs > Intel P4 640 (3.2ghz) & CPU-Z shows 2800 MHZ?

Intel P4 640 (3.2ghz) & CPU-Z shows 2800 MHZ?

Forum CPU & Components : CPUs - Intel P4 640 (3.2ghz) & CPU-Z shows 2800 MHZ?

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goahead   04-03-2006 at 06:43:10 PM

Hello

I am not very familiar with this..I have build my sistem a few months ago, but just today I checked my CPU+RAM with the cpu-z-133 and..well, I was kinda worried, cause I see my CPU is running at 2800MHZ ? And I have 3.2ghz ?
My CPU is a Intel Pentim 4 460 (3,2ghz) I use stock cooling for this.


My question - is this normal ? Should I worry about this ? Could it be a heat problem ? I am not sure, I do not think it's a heat-problem - my system idles at 37C, and 57 at full load. Now I have 41C, and CPU-Z says "Core Speed 2810.i MHZ" Is this normal ?

I would appreciate if I could get some good answers about this...

Thanks in advance.
Rob.

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levicki   04-03-2006 at 06:48:30 PM
- 0 +

You should not be worried, it is normal. It is the result of C1E and EIST kicking in when CPU is idle, something similar to AMD's Cool'n'Quiet.
If you want to disable that feature be sure to disable both C1E and EIST in BIOS.

Reply to levicki
Scorched   04-03-2006 at 06:56:40 PM
- 0 +

Quote :

Hello

I am not very familiar with this..I have build my sistem a few months ago, but just today I checked my CPU+RAM with the cpu-z-133 and..well, I was kinda worried, cause I see my CPU is running at 2800MHZ ? And I have 3.2ghz ?
My CPU is a Intel Pentim 4 460 (3,2ghz) I use stock cooling for this.


My question - is this normal ? Should I worry about this ? Could it be a heat problem ? I am not sure, I do not think it's a heat-problem - my system idles at 37C, and 57 at full load. Now I have 41C, and CPU-Z says "Core Speed 2810.i MHZ" Is this normal ?
Rob.



You will not lose MHZ from overheating.

First thing I would do is verify your CPU speed in your OS by right clicking my computer and then properties.
Second I would verify your actual processor I don't think Pentium 4 460 is a valid cpu. is that a typo?

There is a pentium 4 640 perhaps this is your processor.

FSBXMultiplier=cpuspeed 800X4=3.2GHz
your system would need a 700FSB to attain 2.810GHz. or 175.625 Quad pumped.

Reply to Scorched
goahead   04-03-2006 at 07:00:47 PM
- 0 +

First of all, thank you for your fast reply, levicki.

So, that means I do not need to worry ay all. I just checked - and noticed that when I put the CPU on "a stress", with CPU-Z open, I can see that the core speed is getting higher...

Well, I am not sure how to disable that, but I'd better leave this setting enabled in the bios, it's beter this way I think.

Thanks again.

Rob.

Reply to goahead
goahead   04-03-2006 at 07:05:13 PM
- 0 +

Yes Scorched , it is the 640 generation..
sorry, was my mistake.

"My computer" says 3.2 GHZ.

So, I think it is normal...I guess...

Thank you for your answer.

Rob.

Reply to goahead
Scorched   04-03-2006 at 07:43:22 PM
- 0 +

if you still have concerns about the cpu speed try running:

http://www.goldenram.com/marketing/UpgradeDetect.htm

and click view system detail.

or try other benchmarking progs like everest home edition to get another opinion.

Reply to Scorched
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