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System Board Connectors 15
Front Panel Connector (AA)
The front panel connector provides the signals for the front cover indicator
LEDs and the front cover buttons.
USB Internal Connector (FF)
This connector allows you to connect internal devices that use the USB
interface to the USB controller on the system board.
Lithium Battery (E)
Provides the power to maintain the CMOS memory when the system is
turned off or unplugged.
Expansion Slot Connectors
ISA Slot (G)
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
3424.boo Page 15 Wednesday, September 2, 1998 9:23 AM