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S
UPER P4SBA+/P4SBA/P4SBM User's Manual
Hardware BIOS Virus Protection
The system BIOS is protected by hardware so that no virus can infect the
BIOS area. The user can only change the BIOS content through the flash
utility provided by SUPERMICRO.
infecting the BIOS area and destroying valuable data.
Auto-Switching Voltage Regulator for the CPU Core
The 3-phase-switching voltage regulator for the CPU core can support up to
60A current and auto-sense voltage IDs ranging from 1.1V to 1.85V. This
will allow the regulator to run cooler and thus make the system more stable.
1-5 ACPI/PC99 Features
ACPI is an acronym for Advanced Configuration and Power Interface. The
ACPI specification defines a flexible and abstract hardware interface that
provides a standard way to integrate power management features through-
out a PC system, including its hardware, operating system and application
software. This enables the system to turn on and off peripherals such as
CD-ROMs, network cards, hard disk drives and printers automatically. This
also includes consumer devices connected to the PC such as VCRs, TVs,
telephones and stereos.
In addition to enabling operating system-directed power management, ACPI
provides a generic system event mechanism for Plug and Play and an oper-
ating system-independent interface for configuration control.
ages the Plug and Play BIOS data structures while providing a processor
architecture-independent implementation that is compatible with both Win-
dows 98/2000 and Windows NT 4.0. Note: To utilize ACPI, you must rein-
stall Windows 98. To reinstall Windows 98 with ACPI, enter DOS and type
"setup /p J" at the CDROM prompt (usually D:\) with the Windows 98 CD
loaded.
(Make sure you include the spaces after "setup" and "p".)
press <Enter>. You can check to see if ACPI has been properly installed by
looking for it in the Device Manager, which is located in the Control Panel in
Windows.
Microsoft OnNow
The OnNow design initiative is a comprehensive, system-wide approach to
system and device power control. OnNow is a term for a PC that is always
on but appears to be off and responds immediately to user or other re-
This feature can prevent viruses from
1-16
ACPI lever-
Then
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