Precision 7920 Rack Does Not Enter S4 When Using Zoom Cards in NVMe RAID Mode

Summary: Learn about why the Precision 7920 Rack computer does not enter S4 when using Zoom cards in NVMe RAID mode (vROC).

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Symptoms

Precision 7920 Rack may not enter a S4 sleep state unless either the Virtualization Technology option in the BIOS setup is disabled, or Hyper-V in the operating system is enabled. The issue occurs when it is with Zoom 2 drive or 4 drive configurations using NVMe RAID Virtual RAID on CPU (vROC).

Affected Platform:

  • Precision 7920 Rack

Cause

No cause information is available.

Resolution

This is working within the design specification.

If the computer must enter a S4 sleep state, disable Virtualization Technology in the BIOS, or enable Hyper-V in the operating system.

Affected Products

Precision 7920 Rack
Article Properties
Article Number: 000148191
Article Type: Solution
Last Modified: 06 Aug 2025
Version:  5
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