Solved

2+4GB RAM in dual channel motherboard?

I'm not entirely sure about the answer to this, so would it be safe to use a 4GB and a 2GB RAM stick in a dual channel motherboard?
4 answers Last reply Best Answer
More about 4gb ram dual channel motherboard
  1. Depends on the motherboard/cpu. Some older ones will not allow you to do that but we are talking 2005 era. If its anything ddr2 or ddr3 based you should be fine.

    As for using a 2+4 arrangement. Realistically you most likely wont notice any difference from a normal paired set , but technically the sizes will throw off the calls a little bit. A more pronounced example would be the NVidia gpus with 2gigs on a 192bit bus where the ram distribution is uneven. But as previously mentioned I doubt there are any realistic scenarios that it will matter and you'll notice.
  2. It will not operate in dual channel mode. You will lose 5-7% performance over running matched sticks. However it is better to run 6GB total over a single 4GB stick that is also not in dual channel.
  3. anort3 said:
    It will not operate in dual channel mode. You will lose 5-7% performance over running matched sticks. However it is better to run 6GB total over a single 4GB stick that is also not in dual channel.

    I'm a bit confused. It WON'T operate at all with a 2+4GB dual channel configuration, or will the total performance will just be less than matching memory?
  4. Best answer
    It will work just not as dual channel memory. Dual channel adds 5-7% performance over single channel. So a single 4GB stick is already running in single channel mode so adding a second 2GB stick does not lose you anything in overall performance and helps you by adding more RAM. The best case scenario is 2 matched sticks so the motherboard can run in dual channel mode but as I said the performance loss is not huge. Just 5-7%.
Ask a new question

Read More

Motherboards Memory