n00b ram speed question

[b33rd0g]

ive got Corsair Vengeance LPX Black 2666M 2x8
is this supposed to run at 2666 mhz? bios sets it to 2133 mhz when i choose 'auto'
should i choose 'manual 2666 mhz' ?

just wanna be sure and not risk things going up in smoke

thank you

 

[AlienALX]

Firstly we need the exact model number. Secondly your motherboard should have XMP profiles. If it's AMD look for a AXMP or something like that.

 

[b33rd0g]

no this is a 6700 non-k system
not very familiar with xmp profiles
the model number according to dmidecode --type memory (linux command) is
CMK16GX4M2A2666C16

 

[RobM]

thats 2666 ram
All ram will run at 2133 unless you set the XMP profile in bios
Check you BIOS for the setting

 

[AlienALX]

Yup simple XMP on that one

 

[b33rd0g]

isnt xmp some form of overclocking? does that mean the cpu will be overclocked as well? this system is housed in a tiny node202 case and not really suitable for overclocking

thanks for your help!

ps sorry im so clueless about these things in the intel world. things were so much easier back in the athlon and FX days - and hopefully in my ryzen future as well

 

[AlienALX]

isnt xmp some form of overclocking? does that mean the cpu will be overclocked as well? this system is housed in a tiny node202 case and not really suitable for overclocking

thanks for your help!

No, it's more of an auto detect memory setting it gets from the RAM itself.

 

[b33rd0g]

thanks
did the xmp thing and answered 'no' when it asked something about overclocking the cpu. it now says 2666 mhz a couple of places but it also still says 2133 mhz in one place
oh well, seems to have gone well i guess

 

[AlienALX]

open CPUZ. Go to memory at the top (the tab) and look at your DRAM frequency. For 2666 it should say 1333. This is because it is DDR, so double data rate.

Is mine. I am running 8gb 2133 on this rig.

 

[b33rd0g]

thanks
as im on linux and not in the mood to boot the gaming only os i dont have cpu-z, but i found something else that reports:
*-bank:0
description: DIMM DDR4 Synchronous 2667 MHz (0,4 ns)
product: CMK16GX4M2A2666C16
vendor: Corsair
physical id: 0
serial: 00000000
slot: DIMM_A1
size: 8GiB
width: 64 bits
clock: 2667MHz (0.4ns)
*-bank:1
description: DIMM DDR4 Synchronous 2667 MHz (0,4 ns)
product: CMK16GX4M2A2666C16
vendor: Corsair
physical id: 1
serial: 00000000
slot: DIMM_B1
size: 8GiB
width: 64 bits
clock: 2667MHz (0.4ns)


so i guess all is well
thanks for your help

 

[AlienALX]

Yup looks good mate