Urgent: Which company RAM for RAM upgradation??

[cool_kals9]

Hey, i want to ask, if i have to upgrade d ram, of which company i should buy d RAM?? Which company is better.??
Kindly share ur views asap.

 

[ico]

Corsair. Kingston. Gskill. Adata.

 

[Anish]

Any reputed company as said above would do. Be sure to buy the correct frequency and also the correct version.