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Solve : Quad core in xp?

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Hello! i dont remember from where i heard this, but someone wrote/said that xp does not support quad core PROCESSORS, that it can only use 1 core?

Is this only bull**** or is it true?

I'm pretty sure that mine recognices all four, because when i run some cpu stress tests and open everest it says that all four cores are running at 100%, i just want to be sure.

ThanxXP SP2 (doesn't matter if it's Home or Pro) supports both dual and quad core.
I have heard though that Vista handles multi core processors better since it was written with multi core processors in mind.Ok thanx for the info! Quote from: Deerpark on March 15, 2008, 07:22:12 AM

XP SP2 ...

Just curious - what about pre-SP2 ? Good question Willy...
There were performance issues with dual cores that was corrected with SP2.


http://support.microsoft.com/kb/896256Quote from: patio on March 15, 2008, 12:12:11 PM
Good question Willy...
There were performance issues with dual cores that was corrected with SP2.


http://support.microsoft.com/kb/896256

That's interesting.

I see it also says:
Quote
... Additional updates are available to optimize performance and behavior on computers that are running Windows XP SP2. Without these updates, computers that are equipped with these power management-capable, mobile, dual-core processors may experience decreased performance or unexpected behavior.

and it looks like "Download the WindowsXP-KB896256-v4-x86-ENU.exe package now." is what that refers to.


OT side note:
I see ANOTHER link there:
http://support.microsoft.com/kb/909944/
"Game performance may be poor on a Windows XP-based computer that is using a dual-core processor"
that looks like info that would often be useful to the gamer folks that frequent CH.



Thank you.
Just to clarify http://support.microsoft.com/kb/909944/ refers to a problem with 64 bit XP. 64 bit is actually a completely different codebase than 32bit so this problem is likely not to be applicable for 32 bit.

Nothing to see here, move along.Quote from: Deerpark on March 15, 2008, 12:33:07 PM
Just to clarify http://support.microsoft.com/kb/909944/ refers to a problem with 64 bit XP. ...

Only 64 bit?Sorry, my brain seemed to have had a neuron misfire.
Quote
APPLIES TO
•Microsoft Windows XP Home Edition
•Microsoft Windows XP Professional
•Microsoft Windows XP Professional x64 Edition
I have no idea how I CAME to the conclusion it was only for 64 bit...
I think I better log-off for today.

But the article is pretty OLD and the performance issue only occurs if the game programmers use a special function to calculate timing.
So I think it's pretty safe to assume most games released after 2005 aren't affected by this issue.Quote from: Deerpark on March 15, 2008, 01:04:40 PM
Sorry, my brain seemed to have had a neuron misfire.
Quote
APPLIES TO
•Microsoft Windows XP Home Edition
•Microsoft Windows XP Professional
•Microsoft Windows XP Professional x64 Edition

hahahaha
You see - I saw that too, along with the part above it that was about 64 bit.
I read.
I re-read.
I thought I was overlooking something somewhere.


Quote
I have no idea how I came to the conclusion it was only for 64 bit...

Welcome to the human race.

Quote
I think I better log-off for today.

Nah. We're having too much fun.

Quote
But the article is pretty old and the performance issue only occurs if the game programmers use a special function to calculate timing.
So I think it's pretty safe to assume most games released after 2005 aren't affected by this issue.

Ah.
Ok.
Makes sense.
Thanks for that insight.



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