XMP not available after mem upgrade on my Predator PO7-650

pjotterplotter

Hi,

I upgraded my Predator PO7-650 memory from the default stock memory
2x16GB (ADATA UDIMM DDR5 1Rx8 PC5-4800B-UA0-1010-XT)
to:
2x32GB (G.Skill Trident Z5 (Intel XMP) 64 GB (2 x 32 GB) SDRAM DDR5 6400 CL32-39-39-102 1.40V F5-6400J3239G32GX2-TZ5RK)

I placed these sticks in the same slots as the original where, and left the originals out.

But now when i enable XMP, it reboot a few times and then comes up with a message that there was a problem and the XMP will be reset to normal, without XMP the system boots and runs normally.

The bios is in default settings, I upgraded the bios to R01-A3 and also installed firmware V003, but without any help. I attached the screenshots cpuid show me after the upgrade:

spd.png

mem.png

mb.png

cpu.png

[Edited the thread to add model number to the title]

Puraw

https://community.acer.com/en/discussion/705748/xmp-not-available-after-mem-upgrade

You have to install two exactly the same pairs of 6600MHz 16GB UDIMMs for a total of 64GB RAM.

https://community.acer.com/en/discussion/701236/acer-predator-po7-650-memory-upgrade-can-t-turn-on-xmp-in-bios-updated-bios-firmware

billsey

6400 might be too fast for the motherboard. We have had users here who have run successfully at 5600 IIRC, you might give that a try by sending the 6400 back.