Tom's Hardware > Forum > Motherboards & Memory > Memory > [Solved] Does both pairs of ddr2 memory have to be the same brand in 4 slots???

[Solved] Does both pairs of ddr2 memory have to be the same brand in 4 slots???

Forum Motherboards & Memory : Memory - [Solved] Does both pairs of ddr2 memory have to be the same brand in 4 slots???

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Best answer from mongox.

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have pair of DDR2 memory already installed but want to install another pair of DDR2 memory of the same specs but of a different brand because of clearance issues with my current memory size and my cpu fan. 2 slots are of 1 color and 2 slots are of another color. my asrock a780gxe/128m motherboard manual says "this motherboard also allows you to install four ddr2 dimms for dual channel configuration, and please install identical ddr2 dimms in all four slots"

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I think you'll be fine. Manually set the DRAM voltage to 2.2V and test it. If it shows as 1066 and running as dual channel, you're in good shape. If it shows as 800, try voltage to 2.3. If that doesn't do it, manually set it to 1066 speed.

You may later want to play around with the latency timings to see if you can get all 4 running a little faster, but it's up to you.

They may be different as, but try to match the speed.

Reply to math1337

I currently have the "OCZ Reaper HPC 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066", and want to add the "OCZ Platinum 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500)". THe specs look identical only difference I see is the reaper's voltage is 2.1-2.2v and the platinum is just 2.2v wich I can just set them to match in the bios?? Heres a link to newegg with a side by side spec comparison........

http://www.newegg.com/Product/Prod [...] 6820227289

Reply to marcg611

The four DIMM's should be identical for best performance. Otherwise, you may need to relax the memory timing and/or boost the memory voltage a little. In fact, with 4 identical modules, you may need to boost the voltage .1 or .2 volts anyway.

Message quoted 1 times

Reply to jsc

jsc wrote :

so will the ocz platinum work good with the ocz reaper?? same specs, brand, everything but the way the heatsinks are designed.

Reply to marcg611

Best answer

You may later want to play around with the latency timings to see if you can get all 4 running a little faster, but it's up to you.

Message edited by mongox on 10-09-2009 at 02:44:05 AM

------------------------------ Gigabyte MA785GM-US2H, AMD Phenom II x2 550 BE (4 cores@3.6GHz), G.Skill 2x2GB DDR2 1066 (820@CL4), Scythe Katana3, Hec 585W, Samsung 2232BW+, WD Caviar Black 1TB SATA, Sea 500GB USB, 12 IDE HDs w/Masscool IDE-SATA Convertors, Ugly Old Case, Win XP 32bit
Reply to mongox

thanks for the info!!!!

Reply to marcg611

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[Solved] Does both pairs of ddr2 memory have to be the same brand in 4 slots???

Forum Motherboards & Memory : Memory - [Solved] Does both pairs of ddr2 memory have to be the same brand in 4 slots???