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Programmed I/O operations usually require a substantial amount of processor
bandwidth. However, in multitasking operating systems, the bandwidth freed by bus
mastering IDE can be devoted to other tasks while disk transfers are occurring.
LS-120 Support
LS-120 MB Diskette technology enables you to store 120MB of data on a single, 3.5”
removable diskette. LS-120 technology is backward (both read and write)
compatible with 1.44MB and 720KB DOS-formatted diskette and is supported by the
Windows NT operating system.
The board allows connection of an LS-120 compatible drive and a
standard 3½” floppy drive. The LS-120 drive can be configured as a boot device
before a floppy drive, if selected in the BIOS setup utility.
NOTE
:
If you connect an LS-120 drive to an IDE connector and configure it as the “A” drive and
configure a standard 3.5” floppy as “B” drive, the standard floppy must be connected to the
floppy drive cable’s “A” connector (the connector at the end of the cable).
The BIOS setup utility can be configured to boot firstly from either the LS120 or
standard 3½ “ floppy drive.
Expansion Slots
The server board has one full length ISA bus connector.
The server board has four full length standard PCI (PCI-33/32 bit) connectors.
Labeled 1 to 4 in
Figure 1
on page 2.
The server board also has two full length PCI-66 universal connectors (5 volt/3.3 volt
cards designed for the 3.3v connector -cards with only one notch- will not fit).
Labeled 5 and 6 in
Figure 1
on page 2.
NOTE:
If you install a PCI-33 card into one of the PCI-66 slots, the bus speed for both slots
will be lowered to 33 MHz.
The components on some full length cards installed in slot 6 may interfere with the
DIMM connector latches.
System BIOS
The system BIOS, from Phoenix Technology, provides ISA and PCI compatibility.
The BIOS is contained in a flash memory device on the system board. The BIOS
provides the power-on self-test (POST), the system Set-up program, a PCI and IDE
auto-configuration utility, and BIOS recovery code.
