Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

We are upgrading RAM on a W510. There are 4 slots, currently 2 x 2GB installed.

Question is: can we install a single 4GB chip, or does it need to be balanced with 2 new chips?

share|improve this question
up vote 1 down vote accepted

You can mix and match the memory, although keep in mind it will operate at the speed of the lowest common denominator. I would not recommend it however as you will lose the dual-channel capability. 2x2G or 2x4G is your best bang for the buck.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.