Chapter 1 Introduction

SAGP-845EV is a PSB form factor board to work with a high performance processor. It is equipped with advanced multi-mode I/O, and designed for system manufacturers, integrators, or VARs who want to provide reliable and quality performance at a reasonable price.

In addition, SAGP-845EV’s onboard Intel 845G MGCH chip features built-in AGP4X capability which provides 3D graphics of up to 2048x1536x16-bit-color resolution. The onboard VGA shares 8MB system DDR-SDRAM.

An advanced high performance super AT I/O chip – ITE IT8712 is used in the SAGP-845EV board. Both on-chip UARTs are compatible with the NS16C550. The parallel port and IDE interface are compatible with IBM PC/AT architecture.

SAGP-845EV’s built-in ICH4 has 10/100 Fast Ethernet LAN capability. It’s fully integrated 10BASE-T/100BASE-TX LAN solution with high performance networking functions and low power features.

SAGP-845EV uses the advanced Intel 845G Chipsets that is a 100% software- compatible chipset with PCI 2.2 standard.

This PIAGP CPU card must be installed on IEI PCIAGP/PXAGP series backplanes. If onboard ISA interface is required, please be sure to install PISA-KIT01 daughter board on the specific socket on the backplane before ISA cards are installed to make sure the system works properly.

1.1 Specifications

 

 

CPU (PGA 478)

Intel Pentium 4/4-M Processor, supports 400/533

MHz FSB

 

Bus interface

PCIAGP golden finger, but only AGP/PCI signal is

provided

 

Bus speed

PCI: 33MHz

DMA channels

7

Interrupt levels

15

Chipset

INTEL 845G/GE/82801DB (ICH4)

Real-time clock

INTEL 82801DB (ICH4)

System memory

Two 184-pin DIMM sockets support DDR

200/266/333(845GE) SDRAM up to 1GB.

 

 

Up to four PCI Enhanced IDE hard drives

ATA/100

Can handle data transfer up to 100Mbps

Backward-compatible with existing ATA-2 IDE

IDE interface

specifications so there is no need to do any

 

 

changes to users’ current peripherals

 

Supports up to two floppy disk drives, 5.25” (360KB

Floppy disk drive interface

and 1.2MB) and/or 3.5” (720KB, 1.44MB, and

 

2.88MB)

 

COM1 (RS-232) & COM2 (RS-232) with 16C550

 

UART (or compatible) with 16-byte FIFO buffer

Serial ports

Data transfer up to 115.2Kbps

 

Each port can be individually configured to be

 

COM1, COM2 or disabled

 

 

 

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IBM SAGP-845EV user manual Introduction, Specifications