Chapter 2 - Hardware Design; Overview - EPOX EP-5BTXA-E User Manual

2-1 Overview

The EP-5BTXA-E
is designed with Intel 82430TX PCIset chipset which is
developed by INTEL Corporation to fully support Pentium Processor PCI/ISA
system. The Intel 82430TX PCIset chipset can increase integration and improve
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 PnP Super I/O controller provides the standard PC I/O functions: a floppy
interface, two 16 Byte FIFO serial ports and an EPP/ECP capable parallel port. The EP-
5BTXA-E layout is shown in the onet page for user's reference. Care must be taken
when inserting memory modules, inserting CPU or even plugging PCI card into the
associated slots to avoid damaging any circuits or sockets on board. A cooling fan is
strongly recommended when installing P54C/P54CTB/P55C (MMX)/K5/K6/6x86
(6x86L) processor due to possible overheat.
The EP-5BTXA-E
supports a minimum of 8MB of System Memory and a maxi-
mum of 256MB with 512KB synchronous SRAM Onboard to increase system
performance.
The EP-5BTXA-E
supports synchronous DRAM.
provides two 168-pin DIMM sites for memory expansion. Each socket supports 8MB,
16MB, 32MB, 64MB and 128MB DIMM single-sided or double-sided memory
modules. The memory timing requires 83MHz(12ns), 100MHz(10ns) for SDRAM. This
mainboard has two 168-pin DIMM sites to support 3.3V (power level) Unbuffered
Synchronous DRAMs(SDRAM). Memory parity generation and checking are not
supported.
The EP-5BTXA-E
supports two Onboard PCI IDE connectors that can support
PIO Mode/Ultra DMA 33 device and detect IDE harddisk type by BIOS utility
automatically.
The EP-5BTXA-E
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 EP-5BTXA-E
has been designed with AT form-factor power connector. The
mainboard layout and system block diagram are shown in Figure 1-1 and Figure 2-1.
Hardware Design
Chapter 2
Hardware design
R
The EP-5BTXA-E
2-1