Can't boot with XMP profile enabled

[pc_gamer405]

Hi!

 

I am trying to get this RAM:

Corsair Vengeance LPX 32GB (2x16GB) DDR4 3600MHz C18 Black Heat Spreader XMP 2.0 Desktop Gaming Memory Black: Computers: Amazon.com.au

 

to work with this motherboard:

ASRock > Z390 Phantom Gaming 6

 

The motherboard seems to detect the correct XMP profile, but when the XMP profile is enabled, the system hangs on boot and eventually reverts to booting without an XMP profile enabled.

 

Using one stick at a time works, but only with stick A.

Stick A only (1 x 16GB) with XMP enabled = boots
Stick B only (1 x 16GB) with XMP enabled = no boot

Does this mean stick B is bad?

 

The RAM is rated for 3600mhz, and without XMP enabled will boot with both sticks just fine....but only at 2667mhz according to Task Manager.

 

 

The motherboard seems to be proposing the correct XMP profile but alas, still won't boot with this setting enabled.

 

 

 

1. I've tried manually setting the DRAM frequency to 3600, and nudging the voltage up to 1.4V, however it still won't boot.
2. Motherboard has been flashed to the latest bios (4.30)
3. The RAM is in A2 and B2 slots.

 

CPU: Intel i7-9700k (stock)

RAM: Corsair Vengeance LPX 32GB (2x16GB) DDR4 3600MHz C18 Black Heat Spreader XMP 2.0 Desktop Gaming Memory Black: Computers: Amazon.com.au

Motherboard: ASRock > Z390 Phantom Gaming 6

 

Any ideas would be most appreciated!

 

Thanks 

Edited January 6, 2022 by pc_gamer405
Updated

[Tech87]

Your limiting factor is likely your 9700k, as the chip only officially supports 2666mhz memory speeds.

[pc_gamer405]

Hi, thanks for the response.

 

I tried one stick at a time, stick A with XMP enabled works, stick B with XMP enabled doesn't. Does that mean stick B is bad?

 

Please see screenshot attached.

[--SID--]

CMK32GX4M2Z3600C18 is especially timed for Ryzen (Z in the part number). I've seen issues before with Intel.

[pc_gamer405]

Hi all,

 

Thanks for the answers, this problem is solved.

 

Ended up setting all timings to auto, speed to 3200mhz and increasing voltage from 1.35 to 1.4. Seems one of the sticks was capable of 3600mhz and the other only 3200mhz.