2400MHz RAM runs at 667MHz insteda of full speed

[Jan_Ruc]

I have recently built my first build (still gotta get the GPU tho...) and got 2 sticks of DDR3 1.65v RAM 4GB CL11-13-13-35 from Team Group Vulcan Red Series. I have Gigabyte 990XA-UD3 mobo, AMD FX-8350 oc to 4.5GHz, Cheap 650W psu, Samsung 840 EVO SSD on with RAPID mode on, ATI HD 5450... The thing is also when I try to set the speed any higher than 667MHz my pc will fail to start-up, I have X.M.P, but not set beacuse it will fail to boot... I tried soo many options in BIOS... Everywhere! But no luck, thanks for help, tell me if you need mor info.

 

[bolosfura]

you need to activate the xmp profile in the bios. it is located in power setting, where you can see and change voltages, core clocks and such.

oh. i see. i had a smiliar problem with hyperx RAM. i found i needed to manually stablish the RAM voltage at 1.65 V

 

[arossetti]

If your motherboard allows XMP profiles then set it to XMP 1 or the AMD Memory Profile in the BIOS. Though looking at the board specs form the Gigabyte website it supports 1.5v memory, not 1.65v so I'd check memory compatibility.

 

[reedo_43]

It is actually running at 1333 hence ddr double data rate. 667x2 But yes you still need to activate the xmp. Good luck!

 

[Dark Lord of Tech]

I think you might have to set the timings manually on that board.

 

[Tradesman1]

Good possibility the 8350 just can't handle 2400, manyif not most can't. Might try initially setting them manually to 1.6 1866, 10-11-11-30 and see how that does

 

[Jan_Ruc]

Guys, I set those timings to 11-13-13-35 voltage is set to 1,65v. Since I set the timings to that I can ste freq. and it will boot, but it will still say it's running on 667MHz...
If I try to turn on X.M.P it won't boot... Yes I know this mobo actually don't support 2400MHz RAM, but I tought of underclocking it... But it simply won't boot, I know many things bout pcs, but this is just a bootleneck... Look guys if anyone could try to help me over Skype? I'd apriciate it a lot my Skype janjan2023 please guys, and also thanks for quick response!