Dell XPS 420 processor upgrade

[ark981]

I have Dell XPS 420 64 bit which is currently running on Intel Core 2 Duo E8400. I want to Upgrade my processor to Quad core. I need information if it is possible to upgrade it from Core 2 Duo to Quad core? Currently my Ram is 8GB. Complete specs are as below.

Mainboard : Dell 0TP406
Chipset : Intel X38
Processor : Intel Core 2 Duo E8400 3.00GHz
Memory : 8GB
Video Card : Evga GTX460
Hard Disk : Seagate ST3500620AS (500GB)
Operating System : Windows 7 Ultimate 64 bit
Service Pack 1 (64-bit)
DirectX : Version 11.00
Windows Performance Index : 5.8 to 7.5

 

[Calvin7]

* Intel Core 2 Quad Q6700, Q6600, Q8200, Q8300, Q9400, Q9450.
http://www.findlaptopdriver.com/dell-0tp406-specs/

 

[ark981]

* Intel Core 2 Quad Q6700, Q6600, Q8200, Q8300, Q9400, Q9450.
http://www.findlaptopdriver.com/dell-0tp406-specs/

Thanks for quick reply. I have checked this info through couple of different softwares.
Im looking for to buy one of these. Plz suggest me out of these these 3 which one should I buy?

http://www.ebay.co.uk/itm/Intel-Xeon-X3220-Core-2-Quad-Processor-Better-than-Q6600-2-4ghz-105w-775-/251342012524?pt=UK_Computing_CPUs_Processors&hash=item3a8526c06c

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=251338632677&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en

http://www.ebay.co.uk/itm/Intel-Core-2-Quad-Q8300-2-5-GHz-AT80580PJ0604MN-583005-001-SLGUR-Processor-/271251197039?pt=UK_Computing_CPUs_Processors&hash=item3f27d4cc6f

 

[Calvin7]

Intel Core 2 Quad Q8300

 

[cin19]

* Intel Core 2 Quad Q6700, Q6600, Q8200, Q8300, Q9400, Q9450.
http://www.findlaptopdriver.com/dell-0tp406-specs/

Thanks for quick reply. I have checked this info through couple of different softwares.
Im looking for to buy one of these. Plz suggest me out of these these 3 which one should I buy?

http://www.ebay.co.uk/itm/Intel-Xeon-X3220-Core-2-Quad-Processor-Better-than-Q6600-2-4ghz-105w-775-/251342012524?pt=UK_Computing_CPUs_Processors&hash=item3a8526c06c

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=251338632677&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en

http://www.ebay.co.uk/itm/Intel-Core-2-Quad-Q8300-2-5-GHz-AT80580PJ0604MN-583005-001-SLGUR-Processor-/271251197039?pt=UK_Computing_CPUs_Processors&hash=item3f27d4cc6f

Get the Q9xxx, and Q6600 first if you can find, the last one you buy that is Q8200 or Q8300. Look at the " Best Gaming CPUs For The Money"
http://www.tomshardware.com/reviews/gaming-cpu-review-overclock,3106-5.html