Can I use two 4GB RAM sticks and two 8GB sticks at the same time?

I am looking to upgrade my ram a bit and have the money to upgrade it with 16 gigs but not enough to replace the two 4's. Will this work as long as they are the same Voltage, Cas Latency, MHz and same model/brand?
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  1. If you want 16gb then all you need is 2 more 4gb sticks.

    To answer your question though, yes. I have 12gb (2x4 and 2x2).

    The only thing to make sure is that your mobo will support 8gb sticks.
  2. Thanks, I guess I am looking to make 24gb of ram then, I have an Asus Maximus VI Formula board which I am pretty sure will support the 8gb sitcks.
  3. The 2x8GB is a good idea as there's no guarantee that all the sticks will play together, get the 16GB stable then try adding the old sticks, if you have any problems give me a shout
  4. philbro said:
    I am looking to upgrade my ram a bit and have the money to upgrade it with 16 gigs but not enough to replace the two 4's. Will this work as long as they are the same Voltage, Cas Latency, MHz and same model/brand?


    I am in the middle of a build right now with a n ASUS motherboard, it currently has two 4gb DDR3 1600 sticks with 4 DIMMS. Waiting on two 8gb DDR3 1600 sticks to arrive in the mail. You can download the manual on your motherboard from the ASUS website. On my motherboard each DIMM can support up to an 8 Gb card. I believe in the manual (not sure where I have it now) but I remember something about the larger (8gb) sticks should be in the first A1 and A2 slots. and the smaller (4Gb) sticks in the B1 and B2 slots. 8 gb in slot 1 and 3, and then
    4 gb in slots 2 and 4.. On my motherboard the DIMM slots are dark blue and light blue. Basically you want the colors to match for each 8 gb (dark blue DIMM) and then the colors should match for each 4gb stick (light blue).
  5. pjberg1500lc said:
    I believe in the manual (not sure where I have it now) but I remember something about the larger (8gb) sticks should be in the first A1 and A2 slots. and the smaller (4Gb) sticks in the B1 and B2 slots. 8 gb in slot 1 and 3, and then
    4 gb in slots 2 and 4..


    In his case is more likely to have the two 8gb'sticks in A1+B1 (red) and 4gb sticks in A2+B2(black),This is right.
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