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G75rog · ‎09-25-2018

This only applies to Apex owners since no other MB has a CPU Dimm card.

With Win10 1703 I had 8 NVME drives working on the MB, 2 in Dimm 1 (960 Pro and 970 Pro), 2 in Dimm 2 (970 Evos), 4 in the Hyper X16 card (960 Pros). Life was good.

With the update to Win10 1803 the CPU Dimm card quit working. 3 versions of Bios , 2 Dimm cards, different drives all to no avail.

The only working solution was reverting to Win10 1703.

Finally with 1803 in place I found in CPU Storage that setting CPU Dimm to Disabled or Hyperx16 data THEN setting PCIE 4x8 to X4 (In on board devices) got the CPU Dimm to work again and recognize both drives.

The big question is how did a Win10 update so thoroughly screw up the Asus Bios operation?

jpmboy · ‎09-25-2018

win 10 1803 KB4346084 has been breaking a few things... including any ability to overclock on some boards.

tistou77 · ‎09-26-2018

KB4346084 does not update microcode for LGA2066, there should be no impact
This is the KB4090007 : https://support.microsoft.com/en-us/help/4090007/intel-microcode-updates

Sorry for my english 😄

Case: Lian Li A77F
MB: Rampage VI Extreme Encore
CPU: i9 10980XE
RAM: G.Skill Trident Z RGB Royal 4x8Gb @4000 C16
GPU: EVGA RTX 2080ti XC Ultra
PSU: Seasonic Prime Ultra Titanium 1000W
OS: Intel Optane 905P PCIe
DATA: Samsung 980 Pro
SOUND: Asus Xonar Phoebus

G75rog · ‎09-27-2018

So, if Intel's microcode updates have managed to skew the Bios operations is Asus going to correct the Bios ?

erixx11 · ‎10-19-2018

Insider Fast here. No update has messed with Apex Dimms here. (The OS is on an Intel PCI-E SSD, the Dimm is for a Games partition in my case)

G75rog · ‎10-19-2018

The CPU Dimm next to the I/O ports was the problem child. It didn't affect the PCH Dimm next to the Post display.

I'm on 1809 now and still using the wonky settings.

Apex CPU Dimm inoperative