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Hi everybody,

my problem is that my Intel SSD does not get recognized by my Asus Mainboard.

BIOS>Advanced>Intel(R) Virtual RAID on CPU>All Intel VMD Controllers says "No disks connected to the system"

Anyhow, BIOS>Advanced>Intel(R) Virtual RAID on CPU>Upgrade key says "Premium"

Does anyone has an idea what the reason could be?

Hardware

I've reduced the components. So for debugging purposes I've attached only a single CPU, RAM DIMM and SSD.

Mainboard: WS C621E SAGE BMC (it's already the 2nd one as I've returned the first one because the Asus support thought it was broken)

CPU: Intel® Xeon® Silver 4114 Processor

RAM: Samsung DDR4 32 GB DIMM (is listed on the compatibility list of the mainboard and works)

U.2 Cables: Delock Cable SFF-8643 male > U.2 SFF-8639 female + SATA power connector 50 cm

SSD: Intel® SSD DC P4510 Series

Intel VROC Hardware key: VROCPREMMOD

Interaction

I access BIOS using the BMC remote control. So the only things plugged to the mainboard are

  • USB Keyboard
  • Ethernet cable
  • Power supply unit

Versions

I've update BIOS to the latest Version 3601 (2019/02/01) I've update BMC firmware to the latest Version Version 1.12.3 (2018/10/12) After that I've performed a CMOS RTC RAM reset.

BIOS

I've enforced the Compatibility Support Module to always use UEFI. I've also enabled the (undocumented) X4 U.2 port VROC (in the menu Advanced->CPU Storage Configuration)

BIOS Settings Image

What Asus and Intel support says:

  • Asus: Return the mainboard again (I've done this)
  • Intel: Check NVMe drivers (I've done this)
  • Intel: Maybe the mainboard has a "SATA/PCI Switch" - set it to SATA (ASUS: such a switch does not exist)

Update

I don't think that it's a hardware issue as I have tried:

  • Mainboards: 3
  • SSDs: 4
  • CPUs: 2
  • Cables: 4
  • RAM: 4

What else could it be?

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  • You have two options here as I see it: 1) The drive is faulty, does the drive work in another machine? If not replace the drive. 2) The mobo is faulty, return it to Asus.
    – Burgi
    Commented Mar 5, 2019 at 9:04
  • Thanks for your suggestion. I've 2 SSDs - both won't get recognized - coincidance? I've replaced the board already, so two mainboards seem to have the same issue - also coincidance? Which way would you go 1) or 2) ?
    – funktionslust
    Commented Mar 5, 2019 at 9:53
  • Try the drives in a totally different computer, also try swapping out the SATA cable (just to be safe). If the drives work on the other machine you know that the fault lies with the mobo and you should consider buying a different motherboard.
    – Burgi
    Commented Mar 5, 2019 at 15:27
  • Thank you, I'll try to replace all the parts step by step and will keep the question updated.
    – funktionslust
    Commented Mar 7, 2019 at 13:48
  • @Burgi Hi, I've replaced RAM, mainboard and the SSDs - still no luck. Maybe both cables are broken..
    – funktionslust
    Commented Mar 24, 2019 at 15:49

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