ASUS Prime Z370-P Only two DIMM slots working

Nov 18, 2018
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I've just installed a brand new ASUS Z370-P mobo, and after getting all fans running etc. but no POST. I narrowed the problem down to the DIMM slots. I'm using 2x4GB HyperX Fury 2133Hz DDR4 RAM, so tested with each stick in each DIMM slot, and discovered that only slots B1 and B2 were working. The recommended stick layout for this mobo is into slots A2 and B2.
I have already tried re-seating the CPU, loosening the heatsink and checked for bent pins in the CPU socket.
Should I send the mobo back for a replacement or is it safe to continue with using slots B1 and B2?
 
Nov 18, 2018
2
0
10


What other defects should I look out for? And best ways to test?
Apologies, not had a mobo problem before.