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P/E-P55T2P4D User’s Manual 41
IV. BIOS SOFTWARE
IV. BIOS
(Plug & Play / PCI)
PM Events
This section sets the wake-up call of the system. If activity is detected from any
enabled IRQ channels in the left-hand group, the system wakes up from suspended
mode. You can enable power management for IRQs 3 ~ 15 individually in the list at
the right of the screen. The power management feature will work on the enabled
IRQ channels.
Take note that a Microsoft serial mouse or compatible will use either COM1 (IRQ4)
or COM2 (IRQ3), and a PS/2 mouse will use IRQ12. If you know which IRQ your
mouse is using, you can enable the Wake-up Event for that IRQ here and the system
will wake up when you move the mouse or click its button.
IRQ3 to IRQ15
You can set IRQs 3 - 15 individually. Activity detected from any enabled IRQ
channel will wake up the system.
PNP and PCI Setup
This “PNP and PCI Setup” option configures the PCI bus slots. All PCI bus slots on
the system use INTA#, thus all installed PCI cards must be set to this value.
The first four fields on the screen set how IRQ is assigned for each PCI slot. The
default setting for each field is “Auto”, which uses auto-routing to determine IRQ
use. The other options are manual settings of “14” or “15” for each slot.
PCI Latency Timer
The default setting of “32 PCI Clock” enables maximum PCI performance for this
motherboard.