RAM upgrade recomendation for Elitedesk 800 G9 SFF

[Ari46]

Hi Guys,

need advise for my memory upgrade planning for my elitedesk 800 G9, my consideration are below:

1. There are 4 memory slot available, and I heard that DDR5 have better speed (performance) with dual channel of 2 memory module than 4 memory module. so does it mean that 2x32GB better than 4x16GB?

2. the maximum capacity, on the specification sheet mention that max capacity RAM for this device was 32GB each slot memory, while the local HP support officer mention that the max (tested by HP) was 16Gb, which one is correct?

3. the speed mention that 4800MHz, is correct?

4. the space available for the memory on the casing was limited, caused some memory with heatsink possibly will be bigger than the available space, please advise the recommended memory module(brand and model)

thank you   

[NonSequitur777 · Accepted solution]

@Ari46,

Welcome to our HP community forum!

Your HP Elite 800 G9 SFF is indeed compatible with up to 4x32GB of DDR5 PC5-38400, 4800 MHz, Non-ECC, UDIMM, 288-pins RAM sticks, which, in practice, down throttles to 4400 MHz, even though the specs claim: "Transfer rates up to 4800 MT/s"), I didn't see this 4800 MHz RAM speed pan out in any of the UserBenchmark Users here.

I am not sure if I buy into the notion that only using two (matching) RAM sticks is better than using all four slots, however, if I were to choose between either 2x32GB vs. 4x16GB, I would choose 2x32GB RAM.

Based on real-life User information, on the high end, I would choose either 2x32GB of the Samsung M323R4GA3PB0-CWMOL or the 2x32GB of Crucial Pro CP32G56C46U5 RAM kits.

Kind Regards,

NonSequitur777

[Ari46]

@NonSequitur777,

thank you for your advise,

[NonSequitur777]

@Ari46,

You are welcome.

Kind Regards,

NonSequitur777