Precision 7875 Tower Cannot Boot to PXE Server When Waking from Hibernate

Summary: Learn about Pre-Boot Execution Environment (PXE Boot) on a Precision 7875 Tower.

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Symptoms

Precision 7875 Tower may not be able to boot to PXE server and may continue to boot to the operating system. This occurs when Wake on LAN/WLAN in BIOS setting is set to LAN with PXE Boot, and Deep Sleep Control is set to Disabled.

Affected Platform:

  • Precision 7875 Tower

Cause

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

Resolution

Manually change the following settings in BIOS:

  • Go to Power menu and enable Enabled in S4 and S5 option (Default) in Deep Sleep Control.
  • Go to Boot Configuration menu and select I226 NIC card for PXE boot in Boot Sequence.

Affected Products

Precision 7875 Tower
Article Properties
Article Number: 000348493
Article Type: Solution
Last Modified: 15 Sept 2025
Version:  2
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