I've been thinking about upgrading my RAM.

[Windshields]

Since I've just begun upgrading my x51 R2 with a brand spanking new MSI GTX 960, I've been thinking about upgrading the RAM.

I think I heard somewhere that the x51 only supports up to 1300mhz of RAM, is it still possible to use more than that?

These are my two ram upgrade options.

http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=7525997&CatId=11457

http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=8938988&CatId=11457

 

[Zyfo]

I believe the highest upgrade for the x51 r2 is 16gb at 1600mhz.
Read more about it here:
http://eu.alienwarearena.com/forums/thread/74423/hardware-software/the-hardware-software-faq-for-your-alienware-computer

 

[Windshields]

Alright, thank you.