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Z170 Pro Gaming RAM with different speeds not working

CluelessVM
Level 7

Hi,

I have recently bought 2x16gb 3200 ram modules for my server (CMK32GX4M2E3200C16) to go alongside 2x8gb 2666 of ram I already have (CMK8GX4M1A2666C16).

Ive tried following the manual for the recommended slots to put the ram but it just wont pass POST.

Ive enabled XMP and set the profile to my lowest ram I put in first, then turned the system off and put the new ram in, still not working.

Strangely ive found that the way I have my original ram setup, it only works in A1/B1 slots, trying any of the A2/B2 slots wont work at all.

Is there something I may be missing or is it possible two of my dimm slots may be dead?

Thanks 🙂

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CluelessVM
Level 7

I should also note the new ram does work on its own, but only in A1/B1 slots as stated.