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Thread ID: 79434	2007-05-20 02:27:00	Windows shutdown doesn't turn off PSU	xmojo1 (4630)	Press F1

Post ID	Timestamp	Content	User
551301	2007-05-20 02:27:00	I've just had a problem occur recently with 2 home computers. Prior to installing some Windows updates the power supply unit would switch itself off; now, although the hard drives and other components turn off, the power supply units stay turned on - I can hear the fans still running. This behaviour occurred after installing Windows Updates during shutdown. Both computers are running WinXP with SP2 and their PSUs definitely used to switch off at shutdown, but not anymore.	xmojo1 (4630)
551302	2007-05-20 05:07:00	It's supposed to. If you want psu off , pull the plug	JJJJJ (528)
551303	2007-05-20 06:55:00	Would that explain then, when at night, I can still see the red light inside the Mouse? PJ	Poppa John (284)
551304	2007-05-20 06:56:00	Check ACPI power settings in the bios. Also some PSU fans will run for a minute or 2 after shutdown by design to remove heat. But as you mention this never use to happen it sounds like an issue with windows power management.	apsattv (7406)
551305	2007-05-20 08:24:00	Would that explain then, when at night, I can still see the red light inside the Mouse? PJ This mouse does the same thing. I dont thnk its a setting in the BIOS. Or any settings in Windows. Its most probably the brand/make of the mouse. As the previous MS mouse was fine (it went off) when I shut down.	Speedy Gonzales (78)
551306	2007-05-21 02:34:00	as someone suggested check windows power management settings - you could be going into standby or hibernation instead of shutting down. As for the mouse with the red light - even when your PC is "off " there is 5v available to some devices to enable the system to be started from them. Some BIOS's allow this to be switched on or off for USB ports in case you want to be able to start your system from a USB device such as mouse or Keyboard. Some mice possibly support a low power or standby mode which is triggered by windows shutdown. The only way to truly power off your computer is to use the switch on the PSU or turn it off at the wall.	dugimodo (138)
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