10900K + Trident Z Royal 4266 XMP not working

[HollywoodTonight]

I have just upgraded my PC specs to:

10900k

MSI MEG Z490 ACE - Bios updated to latest

4 x 8GB Trident Z Royal 4266

Corsair HX1200i

I activated XMP and if I leave it on Auto ( 4266 MHz ) my pc reboots with the message overclocking failed.

However, the rams work at a max of 4133 Mhz or lower.

If I leave only two of them on slots 2 and 4 ( they work on 4266 ).

Anyone has any clue why?

Thank you,

Alex

[n_scott_pearson]

Just because your memory supports those speeds doesn't mean that the motherboard or the processor can sustain those speeds.

...S