Precision 7875 Tower PXE Boot Issues with Certain NIC Settings

Summary: Information about using certain Network Interface Card (NIC) settings to Preboot Execution Environment (PXE) boot on the Precision 7875 Tower.

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Symptoms

The Precision 7875 Tower cannot boot to a PXE server and continue to boot to the Operating System (OS). This happens when you set the BIOS settings to the following:

  • Wake-on-LAN (WOL) is set to "LAN with PXE Boot"
  • Deep Sleep is set to "Disabled" with the Realtek 1G NIC card to wake from S5 sleep (shut down)

Cause

The Precision 7875 Tower cannot find the PCIe endpoint LAN device Power Management Event (PME) status. This causes the computer to be unable to boot to PXE when WOL is set.

Resolution

PXE Boot Settings

To resolve this behavior, manually change the following settings in the BIOS:

  • Set "Deep Sleep" to "Enable S4/S5" (Default)
  • Set "Boot Sequence" to "Onboard Realtek 1G LOM" or "NIC X710 DA2" card for PXE boot.

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Affected Products

Precision 7875 Tower
Article Properties
Article Number: 000348764
Article Type: Solution
Last Modified: 15 Sept 2025
Version:  2
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