ASUS P5G41T-M LX3 not supporting 4gb ram per slot, what??

uberinferno

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May 21, 2017
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Is there a specific ram compatibility list? I tried samsung 1600 4gb memory, 2 sticks, i replaced with my old 2x2 sticks, and didnt work. However i tried mixing, matching, the 4gb sticks just dont work. They work fine on my sandy bridge pc.
 
Solution
G41 chipset actually does support one 4GB stick of DDR3-1066. It must have 16 chips on it because the chipset only supports 2Gbit DDR3 chips.

Sandy and Ivy Bridge support 4Gbit chips so can accept 8GB sticks with 16 chips. If your 4GB stick has only 8 chips on it then those are also 4Gbit chips.

Haswell and later can support up to 16GB sticks. If your 4GB stick had only 4 chips on it then it wouldn't work in Sandy Bridge either.
G41 chipset actually does support one 4GB stick of DDR3-1066. It must have 16 chips on it because the chipset only supports 2Gbit DDR3 chips.

Sandy and Ivy Bridge support 4Gbit chips so can accept 8GB sticks with 16 chips. If your 4GB stick has only 8 chips on it then those are also 4Gbit chips.

Haswell and later can support up to 16GB sticks. If your 4GB stick had only 4 chips on it then it wouldn't work in Sandy Bridge either.
 
Solution
Yep, that ad says 16 chips right in it so one of the sticks should work. Unfortunately G41 only officially supports 8GB when using DDR2.

2Gbit refers to capacity, and 2Gbit = 256MB. If you want 4GB and must use only 256MB chips to get it, then you will need 16 chips.

Beware when using relative terms like "low density." Today, that usually refers to memory for Sandy/Ivy but I guess you could consider the really obsolete stuff as "very" low density.