1866MHz memory only shows up at 1333MHz

State_2012

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Jan 30, 2012
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So I installed some Corsair Vengeance Pro 1866MHz ram which was 2x8GB sticks making it a 16GB kit but at first it would only boot at 1333MHz and xmp would cause it to not boot. Now I switched it to memory slot A1 and B1 since it is an AM3+ CPU, FX-9370, then turned on xmp and that all was good. Then I run Fire Strike because I just got an R9 390 and it shows up as "8,192 MB Corsair DDR3 @ 667 MHz" for each kit. So what's with it still showing up as 1333MHz instead of 1866MHz?

Motherboard is the Gigabyte UD3 its either rev 4.0 or 4.1
CPU is an AMD FX-9370, stock 4.4GHz turbo turned off and cool and quite off liquid cooled
Ram is Corsair Vengeance Pro Series 2x8GB 1866MHz, installed in slot A1 and slot B1 on mobo
 

State_2012

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Jan 30, 2012
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Thanks for clearing that up. Yeah it shows DRAM frequency at ~937.5 which comes out to 1875 which is what it should be thanks. Also just curious if you have any tips to uping my Fire Strike score if not I understand since this wasn't the original question.
http://www.3dmark.com/fs/6910058
 

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