WinXP System Properties CPU error?

[Chris May]

I recently overclocked a Pentium D 945 from 3.4GHz to 3.6GHz by increasing CPU
external frequency from 200 to 212 MHz. Although the CPU speed now shows as
3.6GHz on the post screen and according to Sisoft Sandra after XP has started,
the general tab of System Properties shows the CPU designation correctly but now
indicates 2.52GHz as the operating speed as follows:

Computer:
Intel(R)
Pentium(R) D CPU 3.40GHz
2.52GHz, 1.00 GB of RAM

Another Pentium D 945 overclocked the same amount in another computer correctly
shows 3.6GHz as the operating speed.

Any ideas what's wrong? Is System Properties in error on the computer showing
2.52GHz?

The motherboard is an Asus P5P800-VM.

ChrisM

 

[Shenan Stanley]

I recently overclocked a Pentium D 945 from 3.4GHz to 3.6GHz by
increasing CPU external frequency from 200 to 212 MHz. Although
the CPU speed now shows as
3.6GHz on the post screen and according to Sisoft Sandra after XP
has started, the general tab of System Properties shows the CPU
designation correctly but now indicates 2.52GHz as the operating
speed as follows:

Computer:
Intel(R)
Pentium(R) D CPU 3.40GHz
2.52GHz, 1.00 GB of RAM

Another Pentium D 945 overclocked the same amount in another
computer correctly shows 3.6GHz as the operating speed.

Any ideas what's wrong? Is System Properties in error on the
computer showing
2.52GHz?

The motherboard is an Asus P5P800-VM.

What does it run like?
Running like a 3.4GHz? 3.6GHz? 2.52GHz?

Doesn't really matter what any tool tells you in the end - just matters what
the actual performance is to you or those who utilize it.

IMHO:
Overclocking - at today's faster processor speeds - is like playing russian
roulette just because you are bored (ie: you have nothing better to blow
your money/time on... it's something to do... a hobby?)

 

[Chris May]

| I recently overclocked a Pentium D 945 from 3.4GHz to 3.6GHz by increasing CPU
| external frequency from 200 to 212 MHz. Although the CPU speed now shows as
| 3.6GHz on the post screen and according to Sisoft Sandra after XP has started,
| the general tab of System Properties shows the CPU designation correctly but now
| indicates 2.52GHz as the operating speed as follows:
|
| Computer:
| Intel(R)
| Pentium(R) D CPU 3.40GHz
| 2.52GHz, 1.00 GB of RAM
|
| Another Pentium D 945 overclocked the same amount in another computer correctly
| shows 3.6GHz as the operating speed.

Oops! Ignore. I found the "problem." Intel SpeedStep is turned on in the
computer showing the lower operating speed, but not in the computer that
doesn't. When I turned off SpeedStep and checked, readings were correct.

It's just the system doing exactly what it's supposed to do.

ChrisM

 

[over]

| I recently overclocked a Pentium D 945 from 3.4GHz to 3.6GHz by
| increasing CPU external frequency from 200 to 212 MHz. Although the
| CPU speed now shows as 3.6GHz on the post screen and according to
| Sisoft Sandra after XP has started, the general tab of System
| Properties shows the CPU designation correctly but now indicates
| 2.52GHz as the operating speed as follows:
|
| Computer:
| Intel(R)
| Pentium(R) D CPU 3.40GHz
| 2.52GHz, 1.00 GB of RAM
|
| Another Pentium D 945 overclocked the same amount in another
| computer correctly shows 3.6GHz as the operating speed.

Oops! Ignore. I found the "problem." Intel SpeedStep is turned on
in the computer showing the lower operating speed, but not in the
computer that doesn't. When I turned off SpeedStep and checked,
readings were correct.

It's just the system doing exactly what it's supposed to do.

ChrisM

And I'd guess that your system idle process average CPU usage has
rocketed from 97% to at least 98% too!