GL815E Endura Motherboard Product Manual
Page 23 of 51
2.16 Indicators
The motherboard supports a single dual-color LED indicator that is used to show both power and
message waiting status. It is possible to use a single-color LED although some functionality is lost.
The table below describes how the indicator is driven when operating with both single and dual-
color devices.
LED LED state Indicates
Off The motherboard is powered down or in one of the ACPI
sleep states (including S").
On The motherboard is fully powered up (S0).
Single color
Blinking
The motherboard is fully powered up (S0) with a message
waiting (as determined by ACPI TAPI).
Off
The motherboard is powered down or in ACPI sleep
states S4 or S5 (no +5V supply available).
Green The motherboard is fully powered up (S0).
Yellow The motherboard is in sleep state S".
Blinking Green
The motherboard is fully powered up (S0) with a message
waiting (as determined by ACPI TAPI).
Dual color
(green/yellow)
Blinking Yellow
The motherboard is in sleep state S" with a message
waiting (as determined by ACPI TAPI).
2.17 BIOS
The system BIOS is held within a flash ROM device called the firmware hub (FWH). The device is a
4Mbit part that contains the following code.
• System BIOS, POST and configuration (Setup) utility
• Video BIOS
• Product configuration information including boot logo and CMOS defaults
• Processor microcode updates
• Customizations
The code is built from a number of software and data modules that can be customized and
assembled with a software tool that can be provided by RadiSys. Software to support BIOS updates
and crisis recovery is also available - see the Manuals, Drivers & BIOS section on www.radisys.com
for BIOS updates and support software.
The configuration of the motherboard is generally automatic with intervention possible via the built-
in BIOS Setup utility. The operation and feature set are described in the BIOS chapter of this
document.
2.18 Operating Systems Support
The following operating systems are validated by RadiSys with the GL8"5E motherboard. Contact
RadiSys for information on the support of other operating systems. See the Manuals, Drivers &
BIOS section on www.radisys.com for device drivers.
• Microsoft MS-DOS 6.2
• Microsoft Windows 98, NT 4.0, 2000
