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Will Asus G55 work with 1866mhz ram or 2133mhz ram?

ROG_Steve
Level 7
Hello does anybody know if I can upgrade my current 12gb 1600mhz ram into 16gb 1866mhz or possibly 2133mhz ram? I've heard storys about people buying corsair vengence 1866mhz ram only to have it revert back down to 1600mhz or somewhere around the 1700mhz range. I know the i7 is compatible with the ram speeds but im not sure if the motherboard used in the Asus G55VW will utilize the full 1866mhz or 2133mhz of ram.

P.S before you ask yes there is 2133mhz ram sticks for laptops. The Kingston HyperX KHX21S12P1K2 is supposedly it runs at 2133mhz or so NCIX says. Anyway it would be a big help if i know that my G55VW laptop can go beyond 1600mhz just to max out it's capeablilty. Im planning on using this thing for long term use.
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36 REPLIES 36

ROG_Steve
Level 7

Pitcher1
Level 9
hi, due to spec G55 support 1600Mhz, if put 1866Mhz or 2133Mhz RAM to laptop, i guess it would be run 1600Mhz.

Hmm i hope thats not the case I would like my expensive gamming laptop go beyond normal laptop specs. I do hope someone tells me otherwise someone that knows if the motherboard in a G55VW will utilize the full speed of the ram.

fostert
Level 12
In the case of the Kingston HyperX PNP sticks, it is well documented on these forums that the older G74 series indeed runs it at 1600 or 1866 (depending on whatever speeds you put in...), but only two sticks at a time. I.e. putting in 2x4GB=8GB of 1866 sticks caused the IMC to overclock to 1866 MHz. However, putting in 4x4GB=16GB sticks caused the G74 to *downclock* to1333MHz, despite the rated speed of the sticks being much higher. Apparently the G73 did not have this problem: 4 sticks of 1866 would indeed overclock the IMC to 1866 properly.

These are just observations from users, and ASUS has never answered (many, many) questions as to why the G74 does this (we have guessed it is an overheat protection of some sort, since 4 higher frequency sticks may draw too many watts from the IMC). As to whether that means the G55 will behave this way with two or even four very high speed 2133 MHz sticks: it may work, it may not. Just be aware that ASUS builds in protections/behaviours into the BIOS that are undocumented, and they are not going to be forthcoming in helping you find out why PNP RAM doesn't work the way it should.
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G74SX-CST1-CBIL, i7 2630QM 2GHz
32GB DDR3 RAM @1333MHz
GTX560M 3GB DDR5 (192 bit)
17.3" LED 1920x1080
Sentelic TP, BIOS 203
Debian Linux Wheezy (Testing) Kernel 3.2, NVIDIA 295.40

Well im fine if it works with 1866mhz but do you think they will end up making 8gig 1866mhz sticks before my accidental warrenty expires in july? I just hope someone replys on this thread that upgraded their G55VW with high speed ram.

tauproxy
Level 9

ROG_Steve
Level 7
I figured that 😕 i guess i'll have to wait until 8gig 1866mhz ram sticks come out for laptops unless someone prooves me otherwize that 4 sticks of 1866mhz or 2133mhz ram will work on a G55

kerryjosber
Level 7
good , i hope thats not the case I would like my expensive gamming laptop go beyond normal laptop specs

ROG_Steve
Level 7
Ok if i can't use 1866mhz ram Is it better if I use four 4gig 1600mhz ram running at CL9? or two 8gig 1600mhz sticks running at CL10? My laptop is running at CL11 atm so either way it's an improvement.