g.skill memory speed help

02ferreiravilar · 2 Jan 2010 at 00:06

hi. bought a G.Skill Ripjaw 4GB (2x2GB) DDR3 PC3-12800C9 1600MHz Dual Channel Kit for here and in installed it and everything is runiing ine , but i looked at cpu-z and went to check on the speed of my ram, and it says its running at 667MHz instead of 1600MHz, am i missing something or am i just not reading it properly? Do i have to set it in the bios? If it helps my motherboard is ASUS M4A79XTD EVO.

http://i45.tinypic.com/rk6fci.png

Thanks

lemzip · 2 Jan 2010 at 01:41

yep, 666 (or slightly higher) means its running at 1333.

In the bios go to advance and select the first tab. Then scroll down to the bottom of this screen, there should be a memory timings and voltage option. Change the memory clock mode from auto to manual. Another option will then be available to set the divider(memclock value i think its called),change it from 666 to 800. Then you need to change the dram timing mode from auto to manual and set up the ram as per the timings on the stick (probably 9-9-9-24??)

tcl-9
trcd-9
trp-9
tras-24

under there setting there should be a memory overvoltage option, i presume to run at 1600Mhz you require the voltage to be increased from 1.5 to 1.65. This is where you up the voltage. Failure to do this will cause the pc not to boot at the spec.

welshdragon · 2 Jan 2010 at 10:15

yes I have the same mobo and ram and mine shows the same - though my timings on cpuz show 99924?

welshdragon · 2 Jan 2010 at 10:44

Right - just had go myself. I'm using that same board with the latest bios and I went into the bios, in the advanced tab and everything should be set to auto. If you go down to the last but one option, can't remember exact name and hit enter you can change it form 1333 to 1600. save and exit and the memory runs at 1600, all done. No need to mess around with individual timings etc as it has the hgiher spec profile as an option

02ferreiravilar · 2 Jan 2010 at 13:54

welshdragon said:
Right - just had go myself. I'm using that same board with the latest bios and I went into the bios, in the advanced tab and everything should be set to auto. If you go down to the last but one option, can't remember exact name and hit enter you can change it form 1333 to 1600. save and exit and the memory runs at 1600, all done. No need to mess around with individual timings etc as it has the hgiher spec profile as an option

Thanks it worked!

its stupid tho that the supported ram and supported speed for the motherboard does not automaticly apply it maximun speed...

lemzip · 2 Jan 2010 at 14:06

you will probably find that 1333 is supported however 1600+ is classed as a overclock so it will run @ 1333 speeds automatically and usually you have to either enter the speed in manually or select the spd. Glad its all working now for you

welshdragon · 6 Jan 2010 at 22:11

On this board and memory you can overclock to 1800 but that would need manual settings. Can't see how much of a difference that would make? But I'm not yet into this overclocking malarky1