cpu upgrade compatibility

I have windows xp sp2
Pentium 4 519 (P) 3.06 GHz

Motherboard Name Asus PTGD1-LA

Front Side Bus Properties
Bus Type Intel NetBurst
Bus Width 64-bit
Real Clock 133 MHz (QDR)
Effective Clock 533 MHz
Bandwidth 4266 MB/s

Chipset Bus Properties
Bus Type Intel Direct Media Interface

Motherboard Physical Info
CPU Sockets/Slots 1 Socket 775
Expansion Slots 3 PCI
RAM Slots 4 DDR DIMM
Integrated Devices Audio, Video, LAN, IEEE-1394
Form Factor Micro ATX
Motherboard Size 240 mm x 240 mm
Motherboard Chipset i915G

I was told I could upgrade to pentium d 805 but Im not sure about the
EM64T option and my system.
What is the fastest cpu I can upgrade to?

 

http://support.asus.com/cpusupport/cpusupport.aspx?SLanguage=en-us&model=P5GD1
I think you mis-typed your model number (pressed 'T' instead of '5', no?)... there was no listing for the P5GD1-LA, so the link above is for the P5GD1 standard; there's also a '-Pro' model and a '-VM' model.

hd2k

:major Welcome to MajorGeeks :major

 

PTGD1 is correct according to everest home edition and the link below.
My motherboard may be out of date.

http://h10025.www1.hp.com/ewfrf/wc/...057&lc=en&cc=us&dlc=en&product=470216&lang=en