Could you tell us the specs of the laptop?

You could type in the service tag of the laptop onto Dell's support site to find out which revision you have. The service tag can be found in the BIOS or on the bottom of the laptop (on a black sticker).

Thanks for the reply. Here's some info

Service Tag: | Express Service Code: 

The Dell site only says:  Alienware M17x (Mid 2009)

Alienware M17x A0723
System Serial Number: 
Chassis Serial Number: 

Windows 7 Ultimate (x64) Service Pack 1 (build 7601) Board: Alienware A07
Serial Number: . . .
Bus Clock: 133 megahertz
BIOS: Alienware A07 03/04/2011

8gb Ram

Hello Barletta,

The revision for your Alienware M17x system is revision 1. It’s known as the Alienware M17x R1 Quicksilver. Please let us know if this is what you needed. 

You're very welcome. I'm glad we could help. 

Regards,