a werid OS problem-win xp pro shows two pentium processors when only one p4 is present

[santy]

hi guys,

i recently bought a PC
Pentium4 531 HT-EM64T enabled 3.0GHz
Intel D915GAV MB.
512 MB Transcend RAM
Seagate SATA 80GB
Antec S1650 case-350 Smart power SMPS

My problem is that windows XP pro shows two processors to be present.
Is P4 531 really a 64bit processor or is it a 32 bit processor with EM64T enabled.

Does WIn XP see a 64 bit processor as 2 32-bit processors .
Is the prsent power requirement sufficient
santy

 

[Hacp]

Cause you have HT enabled. HT creates one "virtual" processor and one real processor. Perfectly ok and normal.

 

[stevty2889]

Yeah it's hyperthreading..

 

[Twsmit]

Whats happening is that you have hyperthreading on and its showing your main CPU and the virtual hyperthreaded CPU. Perfectly normal.

As for 64-bit, that only works in a 64-bit aware OS like XP Pro 64-bit edition. Under a 64 bit Os your CPU would still have hyperthreading and two CPU's in windows performance monitor. All that would change would be your ability address more ram and run native 64bit apps etc....

 

[santy]

thanks a lot guys
santy

 

[Googer]

Go in to the bios and disable hyperthreading you will then only see one processor in the taskmanager. And no it is not an operating system error.

Windows sees any 64 bit processor as just one cpu and no more. A 64 bit CPU is not two 32 bit processors. All 64 bit means is that the processor can access larger amounts of memory (4gb ram is the most 32 bit can handle) and will process a larger chunk of data at one time.

 

[Hacp]

Geek I answered the question in the first post!

 

[Googer]

Originally posted by: Hacp
Geek I answered the question in the first post!

I know that, but I answerd the second half of his question and how to get rid of the "problem" he was having in the first half(bios).