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RAM Compatibility


The Equalizer
I have been building PCs for a couple decades now..

But RAM compatibility has always been like voodoo to me..

I have a PC that I am trying to upgrade the memory..


The upper stick set(4) works fine in the PC...

The bottom stick set(4) do not boot at all...

Is this a RAM Compatibility issue or do I have bad sticks in the lower set...
Try mixing two from each set and see if that works. I doubt it will but if it does boot then check to see how much ram is showing. Personally, I think the sets are not compatible. Are the Kingston ones 8g?
Spec for the weird named ones;

Technical Specifications for HMT31GR7BFR4C-H9​

Manufacturer Part #HMT31GR7BFR4C-H9
Memory TypeDDR3 SDRAM
Data Transfer Rate1333Mhz
Pins240 Pin
Bus TypePC-10600
Error CorrectionRegistered ECC
Cycle Time1.5ns
Memory Clock166Mhz
RankRank 2
This is the Kingston ram;

Kingston 99U5403-036.A00LF 4GB

Description: PC3-12800, 1.5V

I would say that it is totally incompatible with each other and perhaps even with the motherboard.


The Equalizer
Mixing the mem didn't work.. Not really surprising..

The Motherboard is an ASUS Q87M-E..


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