Intel® i82845 II System Board Technical Reference

Features

    This µPGA 478B system board uses the Intel® i82845 chipset. The system board supports:

DDR DIMM system memory
Intel Pentium® 4 processor
(with 100 MHz 400 MT/s front side bus)
Ultra ATA 66/100 drives
Advanced Configuration and Power Management Interface (ACPI)
4x Universal AGP connector
Integrated audio with Analog Devices codec
Integrated Intel 82562ET 10/100 Mbit/sec LAN

System board layout

    The following illustration shows the system board divided into two sections:

Section 1

    1. Front panel harness connector
    2. Front panel USB connector
    3. Battery
    4. BIOS configuration jumper block
    5. SCSI LED
    6. PCI expansion slots
    7. AGP expansion slot
    8. Front panel audio connector

Section 2

    1. Diskette cable connector
    2. Primary IDE cable connector
    3. Secondary IDE cable connector
    4. CPU fan connector
    5. Auxiliary power connector
    6. CD In audio connector
    7. Power supply cable connector
    8. Memory expansion slots
    9. µPGA 478B Zero Insertion Force (ZIF) socket
    10. Rear case fan connector
    11. Personal System/2® (PS/2) mouse port
    12. PS/2 keyboard port
    13. USB ports
    14. COM 1 (serial) port
    15. LPT (printer) port
    16. LAN (network) jack
    17. USB ports
    18. Audio line out (speakers) jack
    19. Microphone line in jack
    20. Audio line in jack

BIOS configuration jumper settings

    The BIOS configuration jumper lets you clear passwords or recover your BIOS if it becomes corrupted. For information about the location of this jumper, see Section 1.

Setting Jumper placement When used

Normal

For normal operation. The BIOS uses current configuration information and passwords.

(1-2 position)

Configure

For clearing passwords. The BIOS Setup utility runs automatically and the Maintenance menu is displayed.

(2-3 position)

Recovery

For recovering the BIOS configuration. A BIOS recovery diskette is required.

(no jumper)

Specifications

    The following specifications are for the standard configuration. Your system may contain optional equipment. All specifications are subject to change without notice or obligation.

Supported processors

Intel Pentium® 4 processor

Chipset

Intel i82845 MCH and ICH2 chipset

Memory

3.3 V, 168-pin, 4-clock 133 MHz DDR DIMMs with gold-plated contacts.

Two Dual Inline Memory Module (DIMM) slots.

Support for up to 1536 MB DDR memory.

Audio subsystem

Analog Devices codec (analog only)

16-bit stereo, full-duplex operation at asynchronous hardware record/playback samples rates

Frequency response: 20 Hz to 20 kHz (± 0.1 dB)

LAN subsystem

Integrated Intel Kinnereth 10/100 Mbit/sec Ethernet LAN

BIOS

Intel/AMI BIOS. Flash BIOS for easy updates from diskette.

Hard drive interface

Supports up to four IDE devices using two on-board PCI IDE connectors. Automatic drive type selection for easy setup.

Diskette drive interface

A diskette drive controller is integrated on the system board. Support is available for a single diskette drive.

Input/Output connectors

One parallel port and one serial port. LPT and COM settings are configurable from the system setup program. No jumper changes required.

Universal Serial Bus (USB)

4 rear ports

Support for 2 front ports

Mouse

PS/2 mouse connector

Keyboard

PS/2 keyboard connector

Battery

2032-style

PCI expansion slots

3

AGP expansion slots

1

Environment

Operating temperature: 10°C to 35°C (50°F to 95°F)

Humidity: 20% to 80%

Altitude: -60.96 m to 3048 m

Shock: half-sine 2 ms

Vibration: 10 Hz to 40 Hz, 0.015 g2 Hz (flat)
2 Hz to 200 Hz, 0.25 g sinusoidal

CPU clearance: >10.16 mm after installation, top and sides

    Many products for Gateway and its subsidiaries are custom engineered by our suppliers to Gateway specifications and may vary from similarly marketed products.