Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations bkrike on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

ATX PC will not shut off by itself

Status
Not open for further replies.

tinkertech

Technical User
Oct 29, 2002
285
US
I got a system with a P3, 1GHz and an ATX p/s. I is running Win2K. When I am in windows and I instruct the PC to shut off all I get is a "it is now safe to turn off the computer". Why doesn't it shut off by itself like my other ATX powered PCs? One thing to keep in mind, when I installed Win2K from scratch, the ATX p/s was rigged to power on and off like a regular AT p/s. Could this be the cause of my problem?

For every problem there is a solution, for every solution there is a tech behind it.
 
This probably indicates that Windows doesn't have the proper driver to interface correctly with the motherboard's on-board power controls.

Try going to the motherboard manufacturer's website and see if you can find updated "ACPI" or other drivers.

Then, boot into Windows, and under Device Manager, look under the Systems category and remove items with references to APM and ACPI, and then reboot. Windows will hopefully detect these and install the correct software for them.

If ACPI was working before but has for no apparent reason stopped working (meaning you were able to have the machine power itself off and didn't see the "It is now safe..." message until recently), you might try clicking Start => Run and then type "sfc /scannow" to verify system files (you'll need the Windows 2000 CD on hand to make this work).
 
Make sure ACPI is turned on in bios .
And that the driver under computer in device manager
states that it's ACPI uniprocessor PC .
(If it is standard this will happen.)

SYAR
 
This is a well known problem with Windows 2000 and has to do with the initial installation of Windows 2000.


You must have ACPI or APM turned on in the bios prior to installing Windows 2000. If ACPI or APM is not seen during the install, Windows does not install the drivers to support it. I am currently researching to find a work-around, however Microsoft's site suggests to redo the install process with the ACPI/APM enabled in the bios first.

Good Luck,

Chad
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top