Sir can i change my processor to dual core using

Dear sir,

Deffinately This Mother Board supports Dual core 2ghz-2.8Ghz And Pentium D 3GhzProcessors.You can Upgrade your PC.

P5V800MX motherboard supports the latest Pentium 4 CPU from Intel in LGA775 package. With 800/ 533MHz FSB, Hyper-Threading Technology and core-speeds up to 3.8GHz and beyond, Intel's LGA775 Pentium 4 is one of the fastest desktop processors to date. Enjoy the extraordinary CPU power from the latest dual-core CPU.

A pentium d dual core eg D 925 but not the newer dual core pr core 2 duo you might have to update your bios to 0702 in order support the processor if you get the cpu error on start up, update is done with a floppy drive

Hi, Yes. For more detailed specifications, see:http://www.asus.com/product.aspx?P_ID=DwQbLuB78OdZD3VT
Hope this answers your query.  Thanks