Intel 5800/120Ld manual Real-Time Clock/Calendar, Bios

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:

!Bus speed up to 8.33 MHz

!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.

System Overview 1-11