Settings for Kingston HyperX Beast DDR3-2400

CaraesNaur

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Aug 13, 2015
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Last year I built a new system and have since realized that the RAM is running glacially slow.


  • ■ CPU: AMD FX-8350
    ■ Motherboard: Gigabyte GA-990FXA-UD3v4.0 (BIOS rev F2)
    ■ RAM: 2x8GB Kingston HyperX Beast KHX2400C11D3 (DDR3-2400)

The sticks are in the slots labelled DDR_1 and DDR_3 (the ones with the gray clips).

I'm running Linux Mint 17. Both dmidecode and lshw tell me the RAM is running at 667Mhz (dmidecode says Speed in 667Mhz and the Configured Clock Speed is 1066Mhz).

Enabling XMP doesn't change the speed, nor does choosing either of the XMP profiles.

I have the spec sheet for the RAM and have gone through multiple timings tutorials, but I'm still just confused. I should be able to get it to run at 2000Mhz (the max the motherboard supports), but it's been over a decade since the last system I built.
 


The mobo tops out at 2000, so that's my target. Like I said, enabling XMP and choosing either profile the RAM provides still leaves it running at 667. The profiles the RAM offers are:


  • ■ JEDEC: 1600, CL11-11-11 @ 1.5v
    ■ XMP1: 2400, CL11-13-14 @ 1.65v
    ■ XMP2: 2133, CL11-13-13 @ 1.6v



I'm not overclocking the CPU, so the clock multipler should be the default 20. Could this be forcing the RAM into a default safe config at 667? I should set it to 10?

I've read a few guides on RAM setup, but I'm just more confused now.
 
I've just gone through the BIOS and manually set the memory clock multiplier to 10.67 (the highest it will go) and the timings to 11-11-13-32. Still, dmidecode and lshw show the same values (667/1033). But all the BIOS screens show the RAM running at 2133.