Chapter 1: 7401-2xxx and 3xxx Product Overview 1-23
BIOS Upgrades
Flash memory makes distributing BIOS upgrades easy. A new version
of the BIOS can be installed from the hard disk, network or through a
serial port.
The disk-based Flash upgrade utilities , P h las h. ex e and WinPhlash,exe,
ensure the upgrade BIOS extension matches the target system to
prevent accidentally installing a BIOS for a differe n t typ e of syst em.
Setup Utility
The ROM-based Setup utility allows the sys tem configuration to be
modified without opening the system for most basic changes. The
Setup utility is accessible only during the Power-On Se lf Te s t (POST)
by pressing the <F2> key after the POST memory test has begun and
before boot begins. A prompt may be ena ble d tha t in fo rms u se rs t o
press the <F2> key to access Setup.
Note: An external alphanumeric keyboard is recommended for
running the BIOS CMOS Setup Utility. Otherwise, a Touch Screen can
be used.
Plug and Play
The Processor BIOS also has a setup option to support the Windows
runtime plug and play utilities. When this op tion is selected, only
devices critical to boot are assi gn e d r es ou rces by the BIOS. Device
Node information is available for all devices to en su re com patibilit y
with Windows 95. System configuration in form ation is stored in ESCD
format. The ESCD data will be cleared upon loss of the CMOS voltag e.
Advanced Power Management
The 7401 Release 2.0 – 2.4 Processor BIOS has support for both 1.1 and
1.2 Advanced Power Management (APM). The version of APM drivers
loaded in the operating system determin es t o which sp e cificat io n t h e
BIOS adheres. In either case, the energy saving Standby mode can be
initiated by a time-out period set by the user.