RAM operating at lower speed than advertised

Mr_jimmster

Reputable
Jan 19, 2015
17
0
4,510
My G.Skill 16GB of RAM is rated at 1866 but is only running at 1333. My ASUS Sabertooth Mark II is detecting that they are rated at 1866 but their status shows only 1333. They are set in dual channel and I have tried both hardware configurations for dual channel and no change. The Motherboard is rated up to 1866.

i7-4790K 4.0GHz, Noctua NH-U14S EVGA GTX 970 1190MHz, ASUS Sabertooth Mark II
 

Mr_jimmster

Reputable
Jan 19, 2015
17
0
4,510


It looks like that XMP is selected on the main page of the BIOS but still only showing 1333 on each stick
 

Mr_jimmster

Reputable
Jan 19, 2015
17
0
4,510


In the UEFI on the mobo. The status of the RAM showed only 1333 but after changing the XMP to profile 1 the problem was solved. The RAM still shows only 1333 in the UEFI screen status section but on CPU-Z it shows everything is running at 1866 as advertised. More misleading than anything. I had no way of checking this as I hadn't installed Windows when I asked the question. Thank you all very much