PRIME B650M-A wifi II Crucial 4x32GB DDR-5 5600 Memory Problem

[ilginakisik]

Hi all ;

I bought a new PRIME B650M-A wifi II. I also bought 4x32GB Crucial DDR-5 5600 RAM.

Bios is up to date. ( 3014 )

I can only use 1x32 GB RAM only in B2 slot. When I add 1 more RAM no POST / no BOOT

Please help me to use my desktop with 4x32GB RAMs. 

Thanks

[Silent_Scone]

That many ranks is going to be a challenge, especially on this board. There aren't any 4x module kits in that density on the memory QVL for the B650M-A.  Best to purchase a memory kit on the memory QVL.

https://rog-forum.asus.com/t5/technologies-explained/memory-kits-overclocking-and-what-you-may-not-k...

[ilginakisik]

I mean I bought 2 kits. 2 kits consist of 2 RAMs. Exactly the same model all of them.

[Nate152]

Hello ilginakisik

Never combine memory kits, always purchase a single kit of the speed and capacity you want. Doing a search at Crucial.com, there are no 128GB (4x32GB) 5600MHz memory kits.

For a single stick configuration, use the A2 slot (2nd slot from the cpu).

For a two stick configuration, use the A2-B2 slots (2nd and 4th slots from the cpu).

[khiron]

I have a similar problem with a ROG STRIX B650E-I GAMING WIFI that will only POST with 1 stick in DIMM_A, but as soon as I put a stick in the only other slot then it refuses to POST.  It could be a similar problem.