Windows 7 - 8-core PC but only 4 processors being used

hi all

I have 8 processors and they all show up in the Device Manager. Under Windows XP all 8 of these were utilised, but I recently went over to Windows 7 and it only uses 4.

How can I resolve this problem?

thks a lot

ed

Im showing that the Intel Xeon X5365 is only a 4 thread processor.

Maybe I have two of them?

Not sure about the tech details - 8 of them show up under "processors" in Device Manager, and under Windows XP when I ran task manager, under "performances" you could see all 8 working. Now it's only 4.

Ya need more that win 7 home premium mate

Multi-core processor and multiprocessor limits

The maximum quantity of cores in 1 physical processor of a PC that Windows 7 supports is: 32 for 32-bit, 256 for 64-bit. The maximum quantity of physical processors of a PC that Windows supports is: 2 for Professional, Enterprise, and Ultimate; 1 for Starter, Home Basic, and Home Premium.


http://en.wikipedia.org/wiki/Windows_7
at the very bottom

i read somewhere here it is related to Windows 7 'parking' the cores. i will try to find the thread.

EDIT: Easy way to improve CPU usage

Its related to a software limitation to the os much like early versions of Xp being able to utilize 4+ gb or ram and no be x64. And Windows 7 Starter not being able to use more than 2Gb or ram.

How very annoying - the guy who upgraded for me obviously didn't know that and recommended Home Premium!

Thanks for the info.

Not a problem.
Sorry about that

I use Windows 7 Home Prem, I have a 4 core i7 processor and I see 8 processors running in nearly ALL my processor monitors. Each core has two processors. That is the way I understood it would work BEFORE I bought the system. Is Wiki wrong, this time?

you have one physical processor.... he has 2 look up the specs for his machine. it linked directly to the MS website.