Adjust Power Options to prevent DRIVER_POWER_STATE_FAILURE (9f) BSOD

I recently updated the NIC driver on my work computer in an attempt to fix a BSOD problem.

Unfortunately it did not help. The computer would still regularly hang and eventually crash when shutting down to sleep mode with:

The computer has rebooted from a bugcheck. The bugcheck was: 0x0000009f (0x0000000000000003, 0xfffffa800d1eba10, 0xfffff80004d3a3d8, 0xfffffa802eba1c60).
A driver has failed to complete a power IRP within a specific time.


Decided to investigate the settings under: Control Panel -> Power Options


Noticed multiple settings called Link State Power Management and decided to disable them.

PCI Express -> Link State Power Management: Off

Low Power Active Mode profile -> Link State Power Management: No Power Saving

Idle mode optimization profile -> Link State Power Management: No Power Saving

(Expecting that the first setting under PCI Express was the important one, but disabled the others just in case)


It seems that none of the standard power plans disable these settings, not even High performance.

If you switch between multiple power plans, you will have to modify them all.


After modifying the power options I have shut down the computer to sleep mode successfully 15 times without a single hang.

Disabling PCIe Link State Power Management seems to have fixed the DRIVER_POWER_STATE_FAILURE (9f) BSOD problems.