Question about ASUS P5W DH Deluxe Motherboard

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Probem with Asus P5W DH waking back up

I have a new Quad Core system with a ASUS P5W DH with 8 GB of
RAM and running Windows Vista-64 Business. It has two
video cards ASUS GeForce 8600 and GeForce 8500. When we shut
the system down it starts back up after about 2
minutes. Sometimes we can get it to stay off after
shutting it down several times. It has a ASUS
and I have updated the BIOS to version
2406 dated 11/16/07.

I have gone through the BIOS and set the following
ACPI 2.0 support - No
ACPI APIC Support - Enabled

APM Configuration
Restore on AC Power Loss - Power off
Power on by RTC Alarm - Disabled
Power on by External Modem - Disabled
Power on by PCIE Devices - Disabled
Power on by PCI Devices - Disabled
Power on by PS/2 Keyboard - Cntl-Esc
Power on by PS/2 Mouse - Disabled

I have the following devices plugged into the PS/2
HP Laserjet printer
Color printer
APC UPS Power supply
Microsoft Mouse
Sony USB storage device
Sony 3.5inch 1.44 Floppy USB

Internally it has the following:
Creative X-Fi Platinum Fatal1ty Champion Series
Two Plextor PX-800A 18x DVD+/-RW
Belkin Firewire b + USB2 PCI-Express Card
ATech 28-in-1 USB 2.0 Internal/External Card Reader (black)

I do not see any wake-up timers set so it seems that
either I am getting a signal from a USB device or I am
having a problem with the motherboard.

I would appreciate any assistance on this system that someone can give me.

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Re: Probem with Asus P5W DH waking back up

Do you have a modem plugged into phone line - is a signal on phone line causing it (unplug phone line cable to try that).
Could be faulty power switch on front of computer where the contacts are only a hairs breadth apart and the slightest movement/vibration causes it to contact (try this by disconnecting those two wires from the motherboard

I'd try disconnectng any communication cables from the computer first. That would be LAN and Modem cables. If it still restarts, disconnect the keyboard and power down the PC. If it still restarts, then power down again before it is fully off, remove the mouse. If it still does it get a priest to do an exorcism

Posted on Dec 15, 2007

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