You can use both of these memory modules together, the only difference is the speed and the faster memory will slow down to match.
You can populate any memory first but with my ocd i usually populate fastest (12800r) first
Thank You for your reply
so if i use the memory slots like this it will work :
A1 (White) : Type A module
A2 (White) : Type A module
A3 (White) : Type B module
A4 (Black) : Type B module
if you original 2 memory modules were in slots 1 and 2 then yes 3 and 4 would be where you put the 2 additional modules
if the original modules were in slots 2 and 3 then you would put the additional memory in slots 4 and 5
This is due to the memory mode being used, the first is optimizer mode and the second mode is advanced ecc or mirror mode configuration
the original two modules are from Type A , it already installed on the first and the second white slots , we bought the second two modules , so i populate the first one on the third white slot , and the second one on the first black slot
when i started the server , the front panel light indicates that something is wrong on the memory slots and the server didn't boot .
What is the error you are getting on the LCD and also have you tested the memory you have purchased in the original slots on it's own to make sure it is working correctly
We have some RAM modules. Could we use it to upgrade Server DELL R320?
Samsung 4GB Memory 1600Mhz, Dual Ranked, Low Volt UDIMM
Transcend 4GB Quad Rank DDR3 1066 REG DIMM CL7
Crucial 4GB 240-pin DIMM 512MX72 DDR3 PC3-10600 ECC