AsRock Taichi x399 only seeing 64GB of RAM

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   Hi guys,
As the title says, I have an x399 taichi that is 'suddently' seeing only 64GB or ram out of 96GB (6 sticks of 16 GB) after a reboot.
It was seeing the full 96GB just a few days ago : no update to the bios was made, no change whatsoever.

Searched through the forum, but no luck so far.
Switched the stick,re-seated the CPU, etc.

Actual Ram slot config :
D2 : Has RAM
D1 : Has RAM
C2 : Has RAM
C1:  Empty

A1 : Empty
A2 : Has RAM
B1 : Has RAM
B2 : Has Ram

Now, the BIOS seems 'blind' to 2 particular SLOT :
D1 and D2, where says nothing is inserted in those.

Ram model :
Corsair Vengeance RGB Pro 2x16 GB

Default BIOS setting seems to run without XPI @ 2133 MHz.
(Everything is on AUTO mode)

BIOS Version : P3.90
AMD Ryzen TR 1920X

Any idea would be greatly appreciated :)
Thanks guys !

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pepsidrinker Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 08 Sep 2020 Location: Canada Status: Offline Points: 3	Post Options Post Reply Quote pepsidrinker Report Post Thanks(0) Quote Reply Topic: AsRock Taichi x399 only seeing 64GB of RAM Posted: 08 Sep 2020 at 6:24am
	Hi guys, As the title says, I have an x399 taichi that is 'suddently' seeing only 64GB or ram out of 96GB (6 sticks of 16 GB) after a reboot. It was seeing the full 96GB just a few days ago : no update to the bios was made, no change whatsoever. Searched through the forum, but no luck so far. Switched the stick,re-seated the CPU, etc. Actual Ram slot config : D2 : Has RAM D1 : Has RAM C2 : Has RAM C1: Empty A1 : Empty A2 : Has RAM B1 : Has RAM B2 : Has Ram Now, the BIOS seems 'blind' to 2 particular SLOT : D1 and D2, where says nothing is inserted in those. Ram model : Corsair Vengeance RGB Pro 2x16 GB Default BIOS setting seems to run without XPI @ 2133 MHz. (Everything is on AUTO mode) BIOS Version : P3.90 AMD Ryzen TR 1920X Any idea would be greatly appreciated :) Thanks guys !
	pepsidrinker