Intel® i82845 System Board Technical Reference

Features

This FC-PGA 478 system board uses the Intel® i82845 chipset. The system board supports:

SDRAM 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. Internal front speaker connector

5. Communication Network Riser (CNR) expansion slot (reserved)

6. Front panel audio connector

7. Intrusion detection switch connector

8. BIOS configuration jumper block

9. PCI expansion slots

10. AGP expansion slot

11. Telephony (modem) audio connector

12. CD In audio connector

13. Aux In audio connector

Section 2

1. Primary IDE cable connector

2. Secondary IDE cable connector

3. Memory expansion slots

4. Processor heat sink fan connector

5. µBGA 478 Zero Insertion Force (ZIF) socket

6. Auxillary power connector

7. Rear case fan connector

8. Diskette cable connector

9. Power supply cable connector

10. Personal System/2® (PS/2) mouse port

11. PS/2 keyboard port

12. USB ports

13. COM 1 (serial) port

14. LPT (printer) port

15. LAN (network) jack

16. USB ports

17. Audio line out (speakers) jack

18. Microphone line in jack

19. 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 SDRAM DIMMs with gold-plated contacts. Three Dual Inline Memory Module (DIMM) slots. Support for up to 2048 MB SDRAM.
Audio subsystem	Analog Devices codec 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
Communication Network Riser (CNR) expansion slot	1 (reserved)
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 g 2 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.