my RAM seems slow or underclocked

[Michael REMY]

hi !

i just installed the three-channel modules CMP12GX3M3A1600C9 in my computer to replace my old one (model tr3x6G1600C8D which have a problem)

But, the clock of the RAM is slower than my previous one whereas it is a better and high-end model.

Here what i get with Aida and cpuz (clock at 533MHz) :

http://michael.remy.free.fr/forum/CMP12GX3M3A1600C9.jpg

And with my old ones, speed was at 667MHz!
http://michael.remy.free.fr/forum/tr3x6G1600C8D_everest.jpg

what is the problem ?

i have a asus p6t motherboard with i7-675 cpu, all firmware are updated, and windows too.

what did i do wrong ?

thanks for help

 

[KingFatty]

You can choose what speed to run the memory.

The old memory was running at 1333.

Now the new memory is running at a slower speed, 1066.

Why don't you run your memory at 1600, the intended speed? That would be even faster than either of your earlier settings.

To enter BIOS, you will reboot your computer and press something like "delete" during the boot up process. Then there is a menu to configure various settings, such as memory speed. Just turn it up!

 

[Unit'Igor]

I think you need to put it on X.M.P. in Bios.

 

[john3850]

My old 930 at 200x21=has a Windows Experience Index of 7.9 with 1600 at cas 7-7-7 or cas 9-9-9.
So many people claimed that 1600 mem wasnt needed at the time and got the cheaper stuff.

 

[Blastman]

i have a asus p6t motherboard with i7-675 cpu, all firmware are updated, and windows too.

I'm assuming you meant i7-975.

The default memory speed on a i7-975 is DDR3-1066, so when you install new memory modules your MB will always default to that speed (533Mhz x 2 in CPU-Z). You will have to go into the BIOS and manually adjust the multiplier for higher speeds.