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This is the situation: this is a Dell Optiplex 755, I recently upgraded it to Windows 7 64-bit, it had Windows XP SP3 previously. on XP I never had a problem hibernating the PC, now with Windows 7 64 every time I hibernate the PC it wakes it self after 5 or so seconds.
Here are the steps I already tried:
On Windows 7 I enabled the hibernation following this steps
- In the MoBo the sleep settings are on S3
- In the Mobo I disable remote wake ups
- I have disabled the remote wake up in the NIC
- When I run the lastwake command I get unknown device or something like that
- I already disable the wake timers on Windows
- I have the latest drivers from Intel, but I just found out that in the device Manager I get a warning sign on the "Intel AMT SOL (COM3)" device saying that it failed and windows stopped the device, I reinstalled the Intel drivers but nothing changed.
The only thing that I haven't touch is Intel ME in the MoBo but I don't if that could help and what settings are correct.
Juan Zamudio
Posted 2010-12-08T19:11:45.013
Reputation: 166
Restart? Have you checked the event log for any errors that happen when it hibernates? When a crash happens, the system can have an automatic restart process. If anything is waking up the system, it would return back to windows. Sounds like a bad driver somewhere. Can you enter sleep mode without it restarting? – Doltknuckle – 2010-12-08T19:55:17.193
What i meant with restarts it's that wakes up without any user interaction, in the event log all I can see is that an unknown device waked the computer, I'll edit the question to avoid confusion – Juan Zamudio – 2010-12-08T20:00:41.990
Most documents are written for laptops, and I cannot find one on Dell.com, here are some suggestions from HP...http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02076993&cc=us&dlc=en&lc=en&jumpid=reg_R1002_USEN#N70
– Moab – 2010-12-08T23:51:49.193