System Overview 1-11
The system board has one ISA connector (Figure 1-8, A), as shown in the following
figure. The ISA connector (ISA 1) shares a chassis connector slot with a PCI connector
(PCI 7).
ISA features:
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Bus speed up to 8.33 MHz
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16-bit memory addressing
!
8- or 16-bit data transfers
!
Plug and Play ready.
Figure 1-8. Shared ISA/PCI Connector Slot
Real-Time Clock/Calendar
The real-time clock provides system clock/calendar information stored in a non-volatile
memory (NVRAM). The real-time clock battery provides power backup for the real-
time clock.
BIOS
A BIOS and Setup Utility are located in the Flash EPROM on the system board and
include support for system setup and Legacy device configuration. A number of
security, reliability, and management features also have been incorporated to meet vital
server needs.
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