Question Additional Ram causing boot issues

[ahmadhijazi0]

Hi All!
I am running into boot issues and computer failing to wake up from sleep after adding 2x 8GB Vengeance LPX DDR4-2400 (CMK8GX4M1A2400C16) to my current system (specs below). Current ram sticks are in slots 2 & 4. I see 48GB of ram when the computer boots up (after several forced shut down and restart). What am I missing?

CPU: i5-6500
MOBO: ASRock Z170A-X1
Ram: 2x 16GB G.Skill DDR4-2132 (F4-2133C15-16GVR) for a total of 32GB
GPU: RX570 4GB

 

[rgd1101]

Mixing ram kit. not the same speed. try OC

 

[ahmadhijazi0]

Is OCing from 2133 to 2400 doable? How?

 

[ahmadhijazi0]

Actually, I lowered the speed in BIOS from 2400 to 2133 and system seems stable. Thanks!