P4: Hyper Threading not active?

  • Thread starter Thread starter Bekin Rata
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Bekin Rata

Hi folks,

I installed a new PC this week with following configuration:

- Asus deluxe p800 motherboard
- pentium4 3.0 GHZ, 800FSB, hyper threading
- ati radeon 9800 pro
- 1 gig ram
- 160 gig harddrive

I have completed the 3dmark 2003 with an overall score of 5750. Not to bad,
but still I expected to see more...

I remember from other pc's with p4 hyper threading, that in the "details" of
the 3dmark, where you get an overview of the system, 3dmark always
recognized 2 CPU's, instead of one, due to the hyper threading technology.
My 3dmark only sees one CPU and also tells me my p4 has an external clock of
200MHZ. Is the external clock the same as FSB? In that case, it is 600Mhz
short!

Any suggestions on what I should do? Hyper threading is definitly enabled
in the BIOS.

tnx!
Bekin
 
The clock is 200 MHz, but quad pumped. i.e. 4
memory clocks per one cycle of the buss, thereby
800 equivalent.

in message
Hi folks,

I installed a new PC this week with following configuration:

- Asus deluxe p800 motherboard
- pentium4 3.0 GHZ, 800FSB, hyper threading
- ati radeon 9800 pro
- 1 gig ram
- 160 gig harddrive

I have completed the 3dmark 2003 with an overall score of 5750. Not to bad,
but still I expected to see more...

I remember from other pc's with p4 hyper
Click to expand...
threading, that in the "details" of
 
haaa, that sure explains a lot :-)
Thanx. But how about that hyper threading?
Can I test in some way if it is really used by the system?

Bekin
 
Just to mention the obvious: you didn't specify OS. I believe XP is
the minimum required version of Windows to use hyperthreading.

KC
 
Just to mention the obvious: you didn't specify OS. I believe XP is
the minimum required version of Windows to use hyperthreading.
Click to expand...

Nope. We have a Windows 2K PC that shows hyperthreading
in the CPU usage history on the Windows Task Manager (CTRL-
ALT-DEL).

Lynn
 
If you read the report CAREFULLY, it says that the processor's EXTERNAL
CLOCK (also known as the system's FSB speed) is 200 MHz. That is correct.
The P4's INTERNAL clock speed is 800 MHz.
 
And if you read my post CAREFULLY you will see that my system should have a
FSB of 800Mhz. The internal clock is the CPU speed, wich is 3.0 Ghz.

You yourself say that the internal clock is the same as the systems FSB.
Mine is, again, 800 Mhz, not 200!
So I'm guessing that it is NOT correct?
The 3dmark table:

Intel Pentium® 4 3.0 GHz
Manufacturer Intel
Family Pentium® 4
Internal Clock 3.0 GHz
Internal Clock Maximum 3.6 GHz
External Clock 200.0 MHz
Socket Designation CPU 1
Capabilities MMX, CMov, RDTSC, SSE, SSE2
Version Intel(R) Pentium(R) 4 CPU 3.00GHz
Caches
Level 1 16 KB
Level 2 1 MB
Level 3 0 B



Now, would this be correct for an Hyper threading p4 CPU with a FSB of 800
Mhz?

tnx,
Bekin
 
You need to reread the post by DaveW. He did NOT say the FSB
equals the internal clock. Give it up, your machine is fine.
 
And if you read my post CAREFULLY you will see that my system should have a
FSB of 800Mhz. The internal clock is the CPU speed, wich is 3.0 Ghz.

You yourself say that the internal clock is the same as the systems FSB.
Mine is, again, 800 Mhz, not 200!
So I'm guessing that it is NOT correct?
Click to expand...

200MHz is the FSB CLOCK RATE. 800MHz is a quad-pumped DATA RATE.

Clock rate X 4 = data rate
both are describing the same bus, the same CPU.
 
Bekin Rata's log on stardate 21 svi 2004
I remember from other pc's with p4 hyper threading, that in the
"details" of the 3dmark, where you get an overview of the system,
3dmark always recognized 2 CPU's, instead of one, due to the hyper
threading technology. My 3dmark only sees one CPU and also tells me
my p4 has an external clock of 200MHZ. Is the external clock the
same as FSB? In that case, it is 600Mhz short!
Click to expand...

3D Marks "details" are all but detailed. Run Aida or some simmilar
program.
Any suggestions on what I should do? Hyper threading is definitly
enabled in the BIOS.
Click to expand...

Well, if you realy whant to finde out wether jou have HT activated, why
not run some tests. Photoshop/Lightwave is always good at those things...
 
Yes, right, I'm sorry.
This sentence: [You yourself say that the internal clock is the same as the
systems FSB.]

Should be: [You yourself say that the external clock is the same as the
systems FSB.]

My point remains the same: external clock = FSB according to dave, wich
3dmark tells me runs at 200.
It should be 800...

But that doesn't really matter since you already made clear in your first
post why this is the case
 
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