Gateway ALR 9250R, User Manual

Page: 47 / 226

Chapter 2: System Features 33
USB internal connector
This connector allows you to connect internal devices that use the USB
interface to the USB controller on the system board. This connector is not
used in this configuration.
Lithium battery socket
Holds the battery that provides power to maintain the CMOS memory when
the system is turned off or unplugged.
Expansion slot connectors
The system supports seven expansion cards. One slot is shared and supports
either a PCI card or an ISA card.
ISA slot
The system board has one industry standard architecture (ISA) slot that is
full-length if you do not use the wide SCSI-B connector (and half-length if
you use the wide SCSI-B connector). The ISA slot supports slave-only
boards and is shared with PCI-B slot 4. The ISA bus also supports three
embedded devices: the Super I/O chip, system board management
controller (BMC), and flash memory for the system BIOS. ISA bus
features:
•
Bus speed up to 8.33 MHz
•
16-bit memory addressing
•
Type A transfers at 5.33 MB/sec
•
Type B transfers at 8 MB/sec
•
8- or 16-bit data transfers
•
Plug and Play ready
9250R.book Page 33 Friday, April 9, 1999 9:44 AM