I have 2x4 GB sticks of ram in slots A1 and A2, but CPU-Z picks it up as 8GB single channel. Is this correct?

Cookiesaredeliciousyay · Aug 13, 2015

I've been trying to figure out why my Battlefield 4 performance is so bad with my GTX 970 and i7, and i heard that running dual channel ram as opposed to single channel can help performance.

clutchc · Aug 13, 2015

There's only about a 10% hit at most when running system memory in single channel mode. Does your board have 2 or 4 DIMM slots? If 4, be sure the memory sticks are in the correct pair of slots. If they aren't, the system will revert to single channel mode.

Please list your system components. Just i7 could mean anything from the slowest of the 1st gen to the fastest of the latest gen.

Cookiesaredeliciousyay · Aug 13, 2015

clutchc :

Hi, thanks for responding! My system components are: i7 4790 (non-k) with stock cooling, 2x4 GB of Corsair vengeance ram, ROsewill Capstone 550w PSU, Asus Strix GTX 970, ASUS H97-PLUS Mobo, 120 gb samsung evo ssd, and 2tb hitachi deskstar hdd and a asus dvd drive. Im think the ram is in the right slots, because the bios picks it up as 8gb. The Mobo has 4 DIMM slots

Tradesman1 · Aug 13, 2015

Try in slots 1-3 or 2-4, and what DRAM is it, the actual model # and what is it running at (can find the freq and timings using the free app CPU-Z in it's mamory tab, have a feeling it's running at mobo defaults and maybe with sloppy timings

Cookiesaredeliciousyay · Aug 13, 2015

Tradesman1 :

I tried 1-3 and the comp wouldnt boot. havent tried 2-4 yet though i will in a sec. I'll get back to you about the model numbers.CPU-Z says the DRAM frequency is at 665.1mhz

Ok i tried slots 2-4 and now its dual channel

ty. The model number is cmz8gxm2a1600c9

Tradesman1 · Aug 13, 2015

Ok your running at default of 1333, go into BIOS and enable XMP for DRAM settings and select profile 1, that should kick you to 1600 and proper 9-9-9 timings

Cookiesaredeliciousyay · Aug 14, 2015

Tradesman1 :

Ok, done. Thanks. The dram frequency in cpu-z is listed as 799 mhz. SHouldnt it be 1600?

Tradesman1 · Aug 14, 2015

The freq is 799 (this is DDR (DOUBLE data rate) so take true freq 799 say 800 x 2 = effective data rate (1600) so you are fine

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I have 2x4 GB sticks of ram in slots A1 and A2, but CPU-Z picks it up as 8GB single channel. Is this correct?

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