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Chapter 2
Board Installation
word or set the CMOS incorrectly, follow the instructions below.
1. Power off the system
2. Set jumper JP9 to pins 2 and 3 (see previous page for
location of JP9).
3. Wait for 2 seconds, then return jumper JP9 to pins 1 and 2.
4. Power on the system again.
By following this procedure, you will erase your password and reset the
CMOS to the BIOS defaults.
Soft Power Connector
The Soft Power Connector is part of jumper block J15. The Thunderbolt uses
the chipset for power management, including turning on and off the system. If
the Power Button Function option in the BIOS Power Management Menu is
set to On/Off (which is the default), pressing the power button once after the
BIOS has booted up will turn the system on and off. If the Power Button
Function option is set to Suspend, pressing the power button once will wake
the system or send it to Suspend mode. In this case, you cannot turn the
system off unless you shut down through the Windows operating system or
you hold the power button down for four seconds.
Hardware Reset Switch Connector Installation
The Reset switch on your case's display panel provides you with the Hard-
ware Reset function, which is the same as power on/off. The system will do a
cold start after the Reset button is pushed.
CMOS RTC
The Real Time Clock (RTC) circuit, which provides the date and time for the
system is integrated into the 440BX/GX or Via Apollo Pro Plus AGPset. If the
external battery for the RTC is low, it will prevent your system from POSTing,
and you will not get a display. Normally the life span of an external battery is 2
years. If yours is running low, you will need to replace it with a new 3V lithium
battery (Sony CR2032).
Flash EEPROM
The Thunderbolt uses flash memory to store BIOS firmware. It can be updated
as new versions of the BIOS become available. You can upgrade your BIOS
easily using the flash utility (see page 84).
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Table of Contents
Troubleshooting
