Inquiry Regarding PASSMARK SLEEP V2.3 S4 Wake-up Mechanism

[CloudLiao]

Dear Sir,

We are currently facing an issue with the PASSMARK SLEEP V2.3 tool where, in certain instances, the system fails to wake up from S4 sleep mode randomly. However, the system can still be awakened manually using the power button (PWRBTN). The issue occurs under the following environment:

1. Platform: ADL-PS
2. Operating System: Windows 11 (23H2) / Windows 10 (22H2)
3. Driver versions:
   • Chipset: 10.1.19886.8592
   • Graphics: 31.0.101.4502
   • Intel CSME: 2328.5.16.0

Could you kindly provide us with some information regarding the wake-up mechanism used by PASSMARK Sleep? Specifically, is the wake-up triggered via PCIe Wake, USB Wake, or some other interface?

We appreciate your assistance with this issue and look forward to your response.

Thank you for your support!

Best regards,

Cloud Liao

[David (PassMark)]

The Windows API function SetSuspendState is used.
https://learn.microsoft.com/en-us/wi...etsuspendstate

For details about wake up events see this page
https://learn.microsoft.com/en-us/wi...wake-up-events
As per the documentation a scheduled timer is used. You can't program an arbitrary USB device (or PCIe device) to generate a wake signal on a timer.