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AlphaPC 164LX Motherboard
Tru64 UNIX
User’s Manual
Order Number: EC–R2ZPC–TE
Revision/Update Information: This is a revised document. It
supersedes the AlphaPC 164LX
Motherboard DIGITAL UNIX User’s
Manual, EC–R2ZPB–TE.
Compaq Computer Corporation
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March 1999 The information in this publication is subject to change without notice. COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR CONSEQUENTIAL DAM- AGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL. THIS INFORMATION IS PROVIDED “AS IS” AND COMPAQ COMPUTER CORPORATION DISCLAIMS ANY WARRANTIES, EXPRESS, IMPLIED, OR STATUTORY AND EXPRESSLY DISCLAIMS THE IMPLIED WAR- RANTIES OF MERCHAN
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Contents 1 About This Manual 1.1 Manual Conventions and Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2 Features 2.1 Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2.2 Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2.3 Physical Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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4.11 Enclosure Fan Power Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 4.12 Speaker Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 4.13 Microprocessor Fan Power Connector Pinouts. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 4.14 Power LED Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 4.15 EIDE Drive LED Connector Pinouts . . . . . . . .
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8 Troubleshooting 8.1 Hardware Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 8.2 Beep Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2 8.3 Post Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2 8.4 Fail-Safe Booter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Figures 2–1 AlphaPC 164LX Jumper/Connector/Component Location . . . . . . . . . . . . . . . . . . 2-2 2–2 ATX Hole Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 2–3 ATX I/O Shield Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 3–1 AlphaPC 164LX Configuration Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 5–1 Fan/Heat-Sink Assembly . . . . . . . . . . . . .
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Tables 2–1 AlphaPC 164LX Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2–2 AlphaPC 164LX Jumper/Connector/Component List . . . . . . . . . . . . . . . . . . . . . . 2-3 2–3 Power Supply DC Current Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2–4 AlphaPC 164LX Motherboard Environmental Requirements . . . . . . . . . . . . . . . . 2-5 4–1 PCI Bus Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . .
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1 About This Manual This manual describes the AlphaPC 164LX motherboard, a module for computing systems based on the Alpha 21164 microprocessor and the companion 21174 core logic chip. It describes the motherboard’s features and how to set its configuration jumpers. This manual helps users to install and populate the AlphaPC 164LX motherboard with memory modules and peripheral cards. 1.1 Manual Conventions and Terminology The following conventions are used in this manual. Caution: Cautions
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Manual Conventions and Terminology Italic Type: Italic type emphasizes important information and indicates complete titles of documents. Terms: The following terms are used in this manual: This term... Refers to... Alpha SRM console The Alpha SRM Console firmware DIGITAL UNIX installation guide The DIGITAL UNIX Installation Guide Tru64 UNIX The Tru64 UNIX (formerly DIGITAL UNIX) operating system 1–2 About This Manual
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2 Features Table 2–1 provides an overview of the AlphaPC 164LX motherboard’s features. Table 2–1 AlphaPC 164LX Features Feature Description Microprocessor Alpha 21164 microprocessor (64-bit RISC) Core logic chip 21174 core logic chip, comprising a single control chip that pro- vides an interface to system memory and the PCI bus Synchronous DRAM (SDRAM) 32MB to 1GB memory array –- Two banks of 128-bit memory; memory 168-pin unbuffered SDRAM DIMMs Caching: L1 Icache 8KB, direct-mapped instr
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Figure 2–1 shows the AlphaPC 164LX motherboard and its components and Table 2–2 describes these components. Figure 2–1 AlphaPC 164LX Jumper/Connector/Component Location J27 J28 J30 J31 U62 J25 J29 U61 J24 J26 * U58 U59 U60 * J23 J18 B1 * * * * * * J17 U53 U50 U49 U48 J16 * U43 J15 U42 J19 U41 U40 * * J20 J21 U37 J13 U31 U32 U33 J22 J5 U20 U21 U22 J6 J7 J4 U8 U9 U10 * * J3 J1 J8 J9 J10 J11 J2 Top: Mouse Top: COM1 J5 J4 Denotes Pin #1 Bottom: Keyboard Bottom: COM2 * FM-05933.AI4 2–2 Features
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Table 2–2 AlphaPC 164LX Jumper/Connector/Component List Item No. Description Item No. Description B1 RTC battery (CR2032) J25 Hard-drive LED connector J1 Soft power connector J26 PCI slot 0 (64-bit) J2 Fan power, enclosure (+12V) J27 System configuration jumpers J3 Power (+3V, +5V, -5V, +12V, -12V) J28 Flash ROM update enable/disable jumper J4 COM1/COM2 (DB9) connectors J29 SROM test port connector J5 Keyboard/mouse connectors J30 ISA slot 1 J6 EIDE drive 2/3 connector J31 ISA slot 0 J7 EIDE dr
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Power Requirements 2.1 Power Requirements The AlphaPC 164LX motherboard has a total power dissipation of 100 W, excluding any plug-in PCI and ISA devices. Table 2–3 lists the power requirement for each dc supply voltage. The power supply must be ATX-compliant. Table 2–3 Power Supply DC Current Requirements 1 Voltage/Tolerance Current +3.3 V dc, ±5% 5.0 A +5 V dc, ±5% 14.0 A –5 V dc, ±5% 0 A +12 V dc, ±5% 1.0 A –12 V dc, ±5% 100.0 mA 1 Values indicated are for an AlphaPC 164LX motherboard with
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Physical Parameters The AlphaPC 164LX motherboard is specified to run within the environment listed in Table 2–4. Table 2–4 AlphaPC 164LX Motherboard Environmental Requirements Parameter Specification Operating temperature 10°C to 40°C (50°F to 104°F) Storage temperature –55°C to 125°C (–67°F to 257°F) Relative humidity 10% to 90% with maximum wet bulb temperature 28°C (82°F) and minimum dew point 2°C (36°F) Rate of (dry bulb) temperature 11°C/hour ±2°C/hour (20°F/hour ±4°F/hour) change 2.3 Ph
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Physical Parameters 2.3.1 ATX Hole Specification Figure 2–2 shows the ATX Hole Specification for the AlphaPC 164LX. Measurements are shown in inches. Figure 2–2 ATX Hole Specification .800 TYP Between Connectors 4.900 .650 .500 1.612 .400 1.300 .600 PCI Connector .625 (4 Places) 8.950 6.100 9.600 ISA Connector (2 Places) 11.100 12.000 This ATX hole is not supported This ATX hole is not supported on AlphaPC 164LX board, and no on AlphaPC 164LX board, clearance is provided on side 2. however clea
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Physical Parameters 2.3.2 ATX I/O Shield Requirements Figure 2–3 shows the ATX I/O shield dimensions for the AlphaPC 164LX. Measure- ments are shown in millimeters. Figure 2–3 ATX I/O Shield Dimensions R 1.00 21.36 16.05 5.00 TYP 9.25 3.58 2.45 4.35 11.15 15.47 14.96 17.95 22.95 23.96 29.10 33.10 R 1.00 7.19 TYP FM-05986.AI4 Features 2–7 68.4 64.91 64.9 60.26 51.27 42.28 40.48 34.13 25.14 24.7 16.15 16.7 14.35 8.00 0.99 9.98 11.78 18.13 19.93 28.92 35.5 37.91 43.5 44.26 46.06 55.05 64.04 70.39 7
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3 AlphaPC 164LX Jumper Configuration The AlphaPC 164LX motherboard has two groups of jumpers located at J27 and J28, as shown in Figure 2–1. These jumpers set the hardware configuration and boot options. Figure 3–1 shows these jumper configurations. 3.1 CPU Speed Selection The clock synthesizer at location U47 makes it possible to change the frequency of the microprocessor’s system clock output without having to change the clock crystal. Simply set the system clock divisor jumpers to adjus
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Bcache Size Jumpers (CF1 and CF2) Figure 3–1 AlphaPC 164LX Configuration Jumpers J27 System Configuration Jumpers 1 IRQ3 Frequency Ratio IRQ3 IRQ2 IRQ1 IRQ0 Comments 3 IRQ2 466 MHz 7 In Out Out Out Default 5 533 MHz 8 Out In In In IRQ1 600 MHz 9 Out In In Out 7 IRQ0 All other combinations are reserved. 9 CF0 Reserved (Default Out) 11 CF1 Bcache Size CF1 CF2 Comments 13 2MB Out Out Default CF2 All other combinations are reserved. 15 CF3 Reserved (Default Out) 17 Reserved (Default Out) CF4 19
