Hardware Design 2-1
Chapter 2
Hardware design
2-1 Motherboard Layout
The PP6-NF
is designed with Intel 82440FX PCIset chipset which is developed
by INTEL Corporation to fully support Pentium Pro Processor PCI/ISA system.
The Intel 82440FX PCIset chipset provides increased integration and improved
performance designs. The chipset provides an integrated IDE controller with two
high performance IDE interfaces for up to four IDE devices (hard devices, CD-
ROM device, etc). The SMC 37C669 Super I/O controller provides the standard PC
I/O function: floppy interface, two 16 Byte FIFO serial ports and EPP/ECP capable
parallel port. The
PP6-NF
layout is shown in nexts page ( Figure 1-1 ) for user's
reference.
Care must be taken
when inserting memory modules, inserting Pentium
Pro processor CPU or even plugging PCI card into associated slots to avoid
damaging any circuits or sockets on board. A right fan and heatsink fan is strongly
recommended when installing Pentium Pro processor due to possible overheat.
The PP6-NF
supports minimum of 8MB of System Memory and maximum of
768MB while L2 Cache and cache controller included in Pentium Pro Processor
CPU.
The PP6-NF
supports standard Fast Page, EDO (Extended Data Out or Hyper
Page Mode) or Burst EDO DRAM.
The PP6-NF
provides six 72-pins SIMM
sites for memory expansion. The socket support 1M x 32(4MB), 2M x 32(8MB),
4M x 32(16MB), 8M x 32(32MB) 16MB x 32(64MB), and 32MB x 32(128MB)
single-sided or double-sided memory modules. The memory timing requires 70 nS
Fast page devices or 60 nS EDO DRAM. Memory parity generation and checking
or ECC(Error Checking and Correction) are supported(DRAM Modules may be
parity (x 72)or non-parity(x 64)or ECC(x 72). The BIOS will automaticlly detect
which DRAM has installed in SIMM sites.
The PP6-NF
supports
Onboard two PCI IDE
connectors, and detects IDE
harddisk type by BIOS utility automatically.
The PP6-NF
supports Award Plug & Play BIOS for the ISA and PCI cards. The
BIOS can be located in Flash EPROM. The advantage of having Flash EPROM is
much easier to replace BIOS code if necessary.
The PP6-NF's
motherboard layout and system block diagram are shown in
Figure 1-1, 1-2.
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