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16

SB-6862

System Interrupts

The processor has two controllers, supplying 16 IRQs.

Below are assignments in decreasing priority.

LEVEL

FUNCTION

Microprocessor NMI

Parity or I/O Channel Check

Interrupt Controllers
Ctlr 1 Ctlr 2
IRQ0
IRQ1
IRQ2
*Interrupts IRQ8 - IRQ15 redirected to IRQ2*

IRQ8

Real-Time clock interrupt

IRQ9

Software re-directed to INT + AH (IRQ2)

IRQ10

Reserved

IRQ11

Reserved

IRQ12

Reserved

IRQ13

Coprocessor

IRQ14

Fixed disk controller

IRQ15

Reserved

IRQ3

Serial port 2

IRQ4

Serial port 1

IRQ5

Parallel port2

IRQ6

Diskette controller

IRQ7

Parallel port 1

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Содержание SB-6862

Страница 1: ...i SB 6862 Technical Reference SB 6862 Dual Pentium Pro Single Board Computer with Natoma Chipset 1641 McGaw Avenue Irvine California 92614...

Страница 2: ...ii SB 6862...

Страница 3: ...pgradeable to 1 GB using x 64 or x 72 dual inline memory modules DIMM Processor facilitated error correcting memory ECC using x 72 DIMM Processor based cache 256 KB or 512 KB on board On board E IDE c...

Страница 4: ...re is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radioor television reception which can be determined by turning th...

Страница 5: ...or modifications not expressly approved by the grantee of this device could void the user s authority to operate the equipment Note If you have purchased the miniature tower system please note the fo...

Страница 6: ...ED BY THE MANUFACTURER DISCARD USED BATTERIES ACCORDING TO THE MANUFACTURER S INSTRUCTIONS ATTENTION IL Y A DANGER D EXPLOSION S IL Y A REMPLACEMENT INCORRECT DE LA BATTERRIE REMPLACER UNIQUEMENT AVEC...

Страница 7: ...e of this material All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means mechanical photocopying recording or otherw...

Страница 8: ...viii SB 6862...

Страница 9: ...al Bus Connectors J3 J4 6 Fan Connectors JP18 JP45 7 Jumpers 8 Processor Bus Clock Speed JP4 JP3 8 Processor Bus Frequency JP26 JP27 9 Processor Speed Ratio JP32 JP31 JP30 JP29 10 System Memory 11 Ins...

Страница 10: ...x SB 6862...

Страница 11: ...n and brief description of the board Connectors description of connector locations and functions on the board Jumpers detailed description of the jumpers used to the board System Memory detailed descr...

Страница 12: ...us Superscalar Architecture Capability for executing two instructions in parallel Pipelined Floating Point Unit Separate 8 KB Code and 8 KB Data Caches total 16 L1 cache 256 KB or 512 KB internal L2 c...

Страница 13: ...1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 FLASH U57 U58 U59 U60 JP45 J P 2 6 JP27 JP32 JP31 JP30 JP29 JP46 JP47 JP15 JP43 JP16 J P 4 2 J3 J4 JP1 JP2 JP7 JP6 J97 JP24 J 6 7 J68 J12 J11 J8 FLOPPY IDE...

Страница 14: ...e regulator module installed on the board ensures that the correct voltage is provided to the particular processor installed When up grading to the faster grade of Pentium processor make sure to have...

Страница 15: ...PCI IDE drive controller Pin 1 is marked When connecting your hard drive orient the cable s pin one with pin 1 of J11 Pin Assignment Pin Assignment 1 Clock 4 Ground 2 Data 5 5 Vdc 3 Not used Connecto...

Страница 16: ...Parallel Port DB1 DB1 provides the connection for the board s parallel port Serial Port 1 Connector J98 J98 provides the connection for serial port 1 COM 1 Serial Port 2 Connector J97 J97 provides the...

Страница 17: ...Fan Connectors JP18 JP45 These fans provide cooling for the powerful Pentium Pro processors JP45 connects to the primary processor s fan JP18 connects to the dual processor fan Pin Assignment 1 12 vol...

Страница 18: ...JP3 Pentium Pro processors are designed with one of two bus clock speeds The bus clock speed is always a fraction of the processor s internal speed Bus Clock JP4 JP3 Speed 60 MHz IN OUT 66 MHz OUT IN...

Страница 19: ...to run at a speed faster than the processor bus These jumpers match the installed processor s speed with single board computer s defined processor speed When upgrading processors you may need to adju...

Страница 20: ...10 SB 6862 The following table matches processor speed processor clock and the board s processor bus speed Processor Clock Ratio Processor Type Speed Bus Speed 180 MHz 3x 60 MHz 200 MHz 3x 66 MHz...

Страница 21: ...pletely before installing or removing DIMMs The DIMM is held by plastic press clips on both sides of the slot Installing DIMM 1 Hold the DIMM so that the gold tab is pointing toward the slot The DIMM...

Страница 22: ...M x 64 72 48 MB 4M x 64 72 1M x 64 72 1M x 64 72 48 MB 2M x 64 72 2M x 64 72 2M x 64 72 48 MB 2M x 64 72 4M x 64 72 48 MB 4M x 64 72 1M x 64 72 1M x 64 72 48 MB 4M x 64 72 2M x 64 72 56 MB 1M x 64 72...

Страница 23: ...2 1M x 64 72 1M x 64 72 1M x 64 72 160 MB 16M x 64 72 2M x 64 72 2M x 64 72 160 MB 16M x 64 72 4M x 64 72 160 MB 4M x 64 72 8M x 64 72 8M x 64 72 176 MB 16M x 64 72 2M x 64 72 2M x 64 72 2M x 64 72 19...

Страница 24: ...M x 64 72 16M x 64 72 16M x 64 72 16M x 64 72 400 MB 2M x 64 72 16M x 64 72 16M x 64 72 16M x 64 72 416 MB 4M x 64 72 16M x 64 72 16M x 64 72 16M x 64 72 448 MB 32M x 64 72 8M x 64 72 8M x 64 72 8M x...

Страница 25: ...stem memory 0A0000 to 0BFFFF 128 KB video display ROM reserved for graphics 0C0000 to 0DFFFF 128 KB I O expansion ROM reserved for ROM on I O 0E0000 to 0EFFFF 64 KB reserved on motherboard duplicate c...

Страница 26: ...Check Interrupt Controllers Ctlr 1 Ctlr 2 IRQ0 IRQ1 IRQ2 Interrupts IRQ8 IRQ15 redirected to IRQ2 IRQ8 Real Time clock interrupt IRQ9 Software re directed to INT AH IRQ2 IRQ10 Reserved IRQ11 Reserved...

Страница 27: ...docmentation for IRQ information Direct Memory Access The system supports seven DMA channels The first DMA controller holds channels 0 through 3 These channels support 8 bit data transfers between 8 b...

Страница 28: ...r rst math coprocessor 0F8 0FF Math coprocessor 1F0 1F8 Fixed disk 200 207 Joystick 278 27F Secondary parallel port 2F8 2FF Secondary serial port 300 31F Prototype card 378 37F Primary parallel port 3...

Страница 29: ...his document is an overview of the BIOS To start the program press the Delete key while the system is booting The Utilities menu screen will display Figure 10 The Main Menu AMI HIFLEX SETUP UTILITY VE...

Страница 30: ...ry master IDE PCI hard drive Define the parameters of your hard disk and modes The default setting is Auto to auto detect drive type AMI BIOS SETUP STANDARD CMOS SETUP c 1996 American Megatrends Inc A...

Страница 31: ...d Note You may also manually enter the hard disk parameters Two helpful tables appear at the end of this section One describes drive parameters and the other is a list of various hard drive parameters...

Страница 32: ...1996 American Megatrends Inc All Rights Reserved Quick Boot Enabled Available Options 1st Boot Device IDE 0 Disabled 2nd Boot Device FLOPPY Enabled 3rd Boot Device CDROM Try Other Boot Devices Yes In...

Страница 33: ...ADVANCED CHIPSET SETUP c 1996 American Megatrends Inc All Rights Reserved USB Function Disabled Available Options USB KB Mouse Legacy Support Disabled Disabled USB Passive Release Enable Disabled Ena...

Страница 34: ...ure 12 The Advanced Setup Menu AMI BIOS SETUP POWER MANAGEMENT SETUP c 1996 American Megatrends Inc All Rights Reserved Standard Power Management Enabled Available Options Advanced Power Mngmt APM Dis...

Страница 35: ...SETUP c 1996 American Megatrends Inc All Rights Reserved Plug and Play O S No Available Options PCI Latency Timer PCI Clocks 64 Disabled PCI VGA Palette Snoop Disabled Enabled PCI IDE Bus Master Disab...

Страница 36: ...the arrow keys to toggle between options Press Enter to make a selection Figure 16 The Periperals Setup Menu AMI BIOS SETUP PERIPHERALS SETUP c 1996 American Megatrends Inc All Rights Reserved OnBoar...

Страница 37: ...27 SB 6862...

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