Windows XP or XPx64 using more than 2 CPU's???

Sasqui · May 9, 2007

So... according to MS, this is the lowdown on #CPUs supported by OS:

Operating system Number of processors Physical RAM
Microsoft Windows Server 2003, Standard Edition 4 4 gigabytes (GB)
Microsoft Windows Server 2003, Standard x64 Edition 4 32 GB
Microsoft Windows Server 2003, Enterprise Edition 8 64 GB
Microsoft Windows Server 2003, Enterprise x64 Edition 8 1 terabyte
Microsoft Windows Server 2003, Datacenter Edition 32 128 GB
Microsoft Windows Server 2003, Datacenter x64 Edition 64 1 terabyte
Microsoft Windows XP Professional 2 4 GB
Microsoft Windows XP Professional x64 Edition 2 128 GB

Question regarding XP and XPx64... are there any other flavors or upgrades of XP that will use more than 2 physical processors? Yes, I know going to Server 2003 is one answer.

I assume this means having a quad core and XP will do you not a shit bit of good...?

Grings · May 9, 2007

i think microsoft differentiate between cores and physical cpu's, so you could use 2 quad cores with xp

Wile E · May 9, 2007

Yeah Grings is right. Microsoft basically goes by the number of cpu sockets. XP Pro will support systems with 2 cpu sockets filled, the number of cores doesn't matter. If they existed, you could run 2 1,000 core cpus on XP Pro.

Sasqui · May 10, 2007

It looks that way. I got this from a Microsoft “fact sheet”:

" Multiprocessing and multicore support. The platform is designed to support up to two single-core or multicore x64 processors for maximum performance and scalability with no additional licensing cost to customers. "

Now… the way I read that, if you have two quad core processors, it will indeed use all eight physical cores. There isn’t much more detail that I could find other than that statement. If anyone has any concrete links, please do share.

Deleted member 3 · May 10, 2007

Support isn't a problem, it is licensing. And Microsoft indeed counts on a per socket basis. The discussion started way back with HTT.

System Name	Senile
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Case	Rosewill
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Power Supply	Corsair HX750
Mouse	Logitech G5
Keyboard	Corsair Strafe RGB & G610 Orion Red
Software	Win 10

Processor	R7 5800x3D
Motherboard	MSI x570 Tomahawk
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System Name	The ClusterF**k
Processor	980X @ 4Ghz
Motherboard	Gigabyte GA-EX58-UD5 BIOS F12
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Memory	3x2GB Mushkin Redlines 1600Mhz 6-8-6-24 1T
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System Name	Senile
Processor	I7-4790K@4.8 GHz 24/7
Motherboard	MSI Z97-G45 Gaming
Cooling	Be Quiet Pure Rock Air
Memory	16GB 4x4 G.Skill CAS9 2133 Sniper
Video Card(s)	GIGABYTE Vega 64
Storage	Samsung EVO 500GB / 8 Different WDs / QNAP TS-253 8GB NAS with 2x10Tb WD Blue
Display(s)	34" LG 34CB88-P 21:9 Curved UltraWide QHD (34401440) FREE_SYNC*
Case	Rosewill
Audio Device(s)	Onboard + HD HDMI
Power Supply	Corsair HX750
Mouse	Logitech G5
Keyboard	Corsair Strafe RGB & G610 Orion Red
Software	Win 10

Windows XP or XPx64 using more than 2 CPU's???

Sasqui

Grings

Wile E

Power User

Sasqui

Deleted member 3