Hi,
so I have a Dell T7500 with 96GB ram - 12x 8GB PC3 10600R (1333MHz).
I'd like to upgrade it to 192, but it gets a little confusing.
Pushing it requires 12x 16GB PC3 10600R (1333MHz) - they are quad rank.
OK, but there is a note in the manual:
"If more than one Quad rank DIMM is installed within a channel (DIMM1 & DIMM4, DIMM2 & DIMM5, DIMM3 & DIMM6) then the maximum DDR3 speed is reduced to 800 MHz. Spreading Quad Rank memory modules accross multiple channels is recommended."
What speed are they referring to?
Are we dropping from 1333MHz down to 800MHz? If so, that upgrade sucks, we get twice the ram but half the speed :/
Maybe it's the single rank speed being capped at 800MHz. If so, the 1333MHz memory runs at 667MHz anyway so no biggie. Wait, does the quad rank memory run at 333MHz???
They suggest a solution, spreading the Quad modules to different channels, and there is a configuration in the table with 128GB - 4 of the 6 channels get a single 16GB module, everything else is populated with 8GB - yay
Except after that the table jumps straight to 192GB configuration. What about 144GB???
6x16GB +6x8GB - the quads are spread to all the channels, we get 144GB at full speed.
But why did they not mention this? Is 144GB not supported for some reason???
Also what is the whole deal with 192GB needing Red Hat?
Does windows not support it??
so I have a Dell T7500 with 96GB ram - 12x 8GB PC3 10600R (1333MHz).
I'd like to upgrade it to 192, but it gets a little confusing.
Pushing it requires 12x 16GB PC3 10600R (1333MHz) - they are quad rank.
OK, but there is a note in the manual:
"If more than one Quad rank DIMM is installed within a channel (DIMM1 & DIMM4, DIMM2 & DIMM5, DIMM3 & DIMM6) then the maximum DDR3 speed is reduced to 800 MHz. Spreading Quad Rank memory modules accross multiple channels is recommended."
What speed are they referring to?
Are we dropping from 1333MHz down to 800MHz? If so, that upgrade sucks, we get twice the ram but half the speed :/
Maybe it's the single rank speed being capped at 800MHz. If so, the 1333MHz memory runs at 667MHz anyway so no biggie. Wait, does the quad rank memory run at 333MHz???
They suggest a solution, spreading the Quad modules to different channels, and there is a configuration in the table with 128GB - 4 of the 6 channels get a single 16GB module, everything else is populated with 8GB - yay
Except after that the table jumps straight to 192GB configuration. What about 144GB???
6x16GB +6x8GB - the quads are spread to all the channels, we get 144GB at full speed.
But why did they not mention this? Is 144GB not supported for some reason???
Also what is the whole deal with 192GB needing Red Hat?
Does windows not support it??