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2x4GB vs 4x2GB? - Page 2

post #11 of 21
Quote:
Originally Posted by Tuxi;12518327 
You have four slots on your AMD motherboard, there're two kinds of slots, you can install your memory in single channel or dual channel. Its like one channel supports two slots, so if you put your memory to those slots, you will have two memorysticks in single channel and visa versa. There's no quad channel yet. So if you install four sticks, you will be installing two to one channel and two to the other channel. I dont know if this explanation went mechanically right but I think the idea is right still biggrin.gif

Correct in my mind smile.gif
post #12 of 21
Def go with 2x4Gb as the IMC (integrated memory controller) is on the CPU. and running 4 sticks can hamper your OC.

It is much easier to OC with 2 sticks.
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post #13 of 21
Quote:
Originally Posted by Mitche01 View Post
Def go with 2x4Gb as the IMC (integrated memory controller) is on the CPU. and running 4 sticks can hamper your OC.

It is much easier to OC with 2 sticks.
+1

This is exactly why I went with 2x4GB kit
post #14 of 21
C3 revision processor + 4 DIMMs = reliable operation at least up to ~1725Mhz
E0 revision processor + 4 DIMMs = you're good no matter what
C2 revision processor + 4 DIMMs = prepare to get screwed over
2x2GB kits usually overclock better RAM-wise.
AMD does not support triple channel.
post #15 of 21
Quote:
Originally Posted by xd_1771 View Post
C2 revision processor + 4 DIMMs = prepare to get screwed over
I would like to get a explanation for this I have my own conclusions but I would like to hear yours.
post #16 of 21
The older C2 rev memory controllers were only officially rated for DDR3-1066 with 4 DIMMs
Overclockers have been able to max out at 1450Mhz in 4 DIMM operation with C2 rev processors. Any higher, it's just not capable.
post #17 of 21
Quote:
Originally Posted by xd_1771 View Post
The older C2 rev memory controllers were only officially rated for DDR3-1066 with 4 DIMMs
Overclockers have been able to max out at 1450Mhz in 4 DIMM operation with C2 rev processors. Any higher, it's just not capable.
Is it the amount of DIMMs or the amount of memory? I noticed I cannot get my FSB over 222 with 2x4GB kit but I could get it to 263 with my old 2x2GB kit, even if the memory wouldnt get overclocked. This is kind of weird..
post #18 of 21
Quote:
Originally Posted by xd_1771 View Post
The older C2 rev memory controllers were only officially rated for DDR3-1066 with 4 DIMMs
Overclockers have been able to max out at 1450Mhz in 4 DIMM operation with C2 rev processors. Any higher, it's just not capable.
I couldn't even get two sticks of 1600mhz memory stable on a C2 720 no matter how much CPU-NB volts I threw at it.
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post #19 of 21
Amount of DIMMs can affect memory stability IMC-wise, so on a C2 revision with 4 DIMMs no matter what size, your RAM speed is going to be hampered. Apparently 1600Mhz with 2 DIMMs C2 can have trouble with too - I know I did on my old 965. Extra DRAM voltage helps though. Amount of memory (i.e. 2GB DIMM or 4GB DIMM) may affect memory overclockability; a 2x4GB kit often does not overclock as well as a 2x2GB kit.
post #20 of 21
Quote:
Originally Posted by Dopamin3 View Post
I couldn't even get two sticks of 1600mhz memory stable on a C2 720 no matter how much CPU-NB volts I threw at it.
The 2x2GB Mushkin 1333mhz CL9 kit I have overclocked to 1600mhz with stock volts on my 720BE :S
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