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AlphaPC 164UX/BX Motherboard
Windows NT
User’s Manual
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Notice The information in this publication has been carefully checked and is believed to be entirely accurate at the time of publication. Samsung assumes no responsibility, however, for possible errors or omissions, or for any consequences resulting from the use of the information contained herein. Samsung reserves the right to make changes in its products or product specifications with the intent to improve function or design at any time and without notice and is not required to update this
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Contents 1 About This Manual 1.1 Difference between AlphaPC 164UX and 164BX . . . . . . . . . . . . . . . . . . . . . . . . . 1–1 1.2 Manual Conventions and Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1 2 Features of the AlphaPC 164UX Motherboard 2.1 Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4 2.2 Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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4.9 Input Power Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–8 4.10 Narrow SCSI Bus Connector (UX only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–8 4.11 Fast and Wide SCSI Bus Connector (UX only). . . . . . . . . . . . . . . . . . . . . . . . . . . 4–9 4.12 10/100 Mbit Ethernet Connector Pinouts (UX only) . . . . . . . . . . . . . . . . . . . . . . . 4–9 4.13 Speaker Connector Pinouts . . . . . . . . . . . . . . . . . . .
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7.4.1 Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–6 7.4.2 Before Installing Windows NT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–7 7.4.3 Windows NT Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–9 8 Troubleshooting 8.1 Hardware Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–1 8.1.1 Troubles
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Figures 2–1 AlphaPC 164UX Jumper/Connector Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2 2–2 Board measurement and Hole Position Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 2–6 2–3 Board Vertical Clearance Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7 2–4 ATX Back Panel Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8 3–1 AlphaPC 164UX Configuration Jumpers. . . . . . . . . .
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Tables 2–1 AlphaPC 164UX Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1 2–2 AlphaPC 164UX Jumper/Connector List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3 2–3 Power Supply DC Current Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4 2–4 AlphaPC 164UX Motherboard Environmental Requirements . . . . . . . . . . . . . . . . 2–4 4–1 PCI Bus Connector Pinouts . . . . . . . . . . . . . . . . . . . .
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1 About This Manual This manual describes the AlphaPC 164UX/BX motherboard, a module for TM computing systems based on the Alpha 21164 microprocessor and the companion Digital Semiconductor 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 164UX/BX motherboard with memory modules and peripheral cards. 1.1 Difference between AlphaPC 164UX and 164BX • AlphaPC 164UX motherboard
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Manual Conventions and Terminology Extents: Extents are specified by a single number or a pair of numbers in square brackets ([ ]) separated by a colon (:), and are inclusive. For example, bits [7:3] specify an extent including bits 7, 6, 5, 4, and 3. Multiple bit fields are shown as extents. Register Figures: Register figures have bit and field position numbering starting at the right (low-order) and increasing to the left (high-order). Signal Names: All signal names are printed in boldfa
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2 Features of the AlphaPC164UX Motherboard Table 2–1 provides an overview of the AlphaPC 164UX motherboard’s features. Table 2–1 AlphaPC 164UX Features Feature Description Microprocessor Alpha 21164 microprocessor (64-bit RISC) Core logic chip Digital Semiconductor 21174 core logic chip, comprising a single control chip that provides an interface to system memory and the PCI bus Main memory 32MB to 3GB memory array –- Three banks of 128-bit memory; 168-pin unbuffered SDRAM DIMMs with ECC Ca
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Figure 2–1 AlphaPC 164UX Jumper/Connector Location J24 J33 J10 J22 Blk Yellow Red wire wire wire J21 J16 J7 GND +12 FOK J6 J15 J5 J28 J2 J30 J36 J23 J29 J37 J31 J17 J34 U55 J12 J25 J35 J13 Pwr Pwr LED Switch IDE LED Reset Switch SCSI LED J18 U8 U7 U6 U5 U4 U3 2–2 Features of the AlphaPC164UX Motherboard
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Table 2–2 AlphaPC 164UX Jumper/Connector List Item No. Description Item No. Description J2 Full length 64 bit PCI slot U3 DIMM socket 0 J5 Half length 32 bit PCI slot U4 DIMM socket 1 J6 Full length 32 bit PCI slot U5 DIMM socket 2 J7 Full length 32 bit PCI slot U6 DIMM socket 3 J10 Full length ISA slot U7 DIMM socket 4 J12 Serial Port connector U8 DIMM socket 5 J13 Parallel port connector U55 Microprocessor socket(21164 Alpha) J15 Ultra Fast and Wide SCSI Connector J16 Narrow SCSI connector J1
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Power Requirements 2.1 Power Requirements The AlphaPC 164UX motherboard requires a minimum of a 300 watt power supply. The power supply must be ATX-compliant. Table 2–3 Power Supply DC Current Requirements Voltage Current +3.3Vdc,±5% 14 A +5 Vdc,±5% 25 A -5 Vdc,±5% 0.5 A +12 Vdc,±5% 10 A -12 Vdc,±5% 0.5 A Caution: Fan sensor required. The 21164 microprocessor cooling fan must have a built-in sensor that will drive a signal if the airflow stops. The sensor is connected to the motherboard con
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Physical Parameters 2.3 Physical Parameters This section has two parts: the first illustrates the distances between the board mounting holes and the edges of the board; the second shows the vertical clearances required by the board components at all points within the border of the AlphaPC 164UX. All holes and board measurements are compliant with the ATX 2.01 specification. The AlphaPC 164UX exceeds the ATX height indications in two places. The first is at the location of the 21164 (the 2.5
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12.00" 5.550" 3.750" Physical Parameters Figure 2–2 Board measurement and Hole Position Diagram .400" 9.600" .250" .650" .250" 3.1" Board Measurements and Hole Locations 1.300" 2.3.2 Vertical Clearance Figure 2–3 shows the Board Vertical Clearance for the AlphaPC 164UX 2–6 Features of the AlphaPC164UX Motherboard
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Physical Parameters Figure 2–3 Board Vertical Clearance Diagram 0.5" 1.0" 2.5" 1.5" 1.5" 1.0" 0.5" Vertical Clearance Requirements Features of the AlphaPC164UX Motherboard 2–7
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Physical Parameters 2.3.3 ATX Cutout Information In the event that an OEM or system integrator would like to use a chassis that supports a n standard ATX back-panel cutout, we have included the mechanical drawing used to create standard cutout. Figure 2–4 ATX Back Panel Dimension Standard 9 pin DSUB connector cutouts with these center points 4.924 Standard 25 pin 3.454 DSUB connector 2.436 cutout with this center point 1.774 1.60 .640 1.134 .990 .856 0.54 .247 .256 .240 Radius = .490 on both .0
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3 AlphaPC 164UX Jumper Configuration The AlphaPC 164UX has one set of jumpers located at J28. These jumpers set the hardware configuration and boot options. Figure 2–1 shows the jumper location on the AlphaPC 164UX motherboard. Figure 3–1 shows the jumper functions for each group. AlphaPC 164UX Jumper Configuration 3–1
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CPU Speed Selection (Option 1,2,3, &4) Figure 3–1 AlphaPC 164UX Configuration Jumpers J28 System Configuration Jumpers Option 1 Option1 Option2 Option3 Option4 Frequency Option 2 300 MHz In In In In 333 MHz Out In In In Option 3 366 MHz In Out In In 400 MHz Out Out In In Option 4 433 MHz In In Out In 466 MHz Out In Out In Option 5 500 MHz In Out Out In 533 MHz Out Out Out In Option 6 566 MHz In In In Out 600 MHz Out In In Out 633 MHz In Out In Out Option 7 666 MHz Out Out In Out 700 MHz In In
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Bcache Size Jumpers (Option 14,15) 3.2 Bcache Size Jumpers (Option 14,15) The Bcache size jumpers are located at J28–27/28 (Option14) and J28–29/30 (Option15), as shown in Figure 3–1. The AlphaPC 164UX-2/-4 is configured with 2MB/4MB of Bcache during production ; the other jumpers shown in Figure 3–1 (0,1) are for other implementations. Note: The standard motherboard is manufactured with 128K X 18 or 256K X 18 data SSRAMs. 3.3 Boot Option Jumper (Option 11) The boot option jumper is locat
