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Summary of Contents for Micronics Twister LX
- Page 1 Twister LX Pentium II System Board Manual Document Number: 06-00338-01, Rev. 1B March 1998 45365 Northport Loop West, Fremont, CA. 94538-6417...
- Page 2 Copyright Notices Copyright © 1998 Micronics Computers, Inc. The information con- tained in the Twister LX PCI/ISA/AGP Pentium II system board manual has been carefully checked and is believed to be accurate. Micronics assumes no responsibility for any inaccuracies that may be contained in this document.
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Page 3: Table Of Contents
Introduction Features Software Compatibility Before You Begin Chapter 1 - Quick Installation Installing the Twister LX Chapter 2 - Configuring the Twister LX Static Electricity Environment Considerations Twister LX System Board Jumper Settings Chapter 3 - Installing the Twister LX... - Page 4 User Password IDE HDD Auto Detection HDD Low Level Format Save and Exit Setup Exit Without Saving Chapter 5 - Special Features Accelerated Graphics Port (AGP) LM79 (Hardware Management) Ultra DMA/33 IDE Universal Serial Bus (USB) Twister LX System Board Manual...
- Page 5 Technical Support Appendix B - Post Messages Appendix C - Beep and POST Codes Appendix D - Updating the System BIOS Appendix E - Warranties and Notices Limited Warranty Non-Warranty Service FCC Statement Glossary Index Twister LX System Board Manual...
- Page 6 List of Figures Figure 1.1: Power-Up Screen Figure 2.1: Twister LX System Board Figure 3.1: Installing a 168-Pin DIMM Figure 3.2: Installing a PCI Peripheral Card Figure 3.3: Installing an ISA Peripheral Card Figure 3.4: Installing an AGP Peripheral Card Figure 4.1: Power-Up Screen...
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Page 7: Introduction
Introduction Introduction Thank you for choosing the Twister LX system board. The Twister LX is an advanced single processor solution for the industry’s most demanding server and worksta- tion applications. Based on the Intel 440LX AGPset, the Twister LX supports the latest advanced processor architecture, the ®... -
Page 8: Features
Introduction Features The Twister LX includes the following features: ® Single Intel Slot 1 for: ® Intel Pentium II chip 233/266/300/333MHz Integrated Voltage Regulator Module Intel 440LX AGPset Intel PIIX 4 National PC87309 Super I/O chip Four 32-bit PCI slots... -
Page 9: Software Compatibility
Introduction Software Compatibility The Twister LX system board has been thoroughly tested for compatibility with a variety of operating systems and environments, including: Microsoft - DOS 6.22 Windows NT 3.5x Windows NT 4.0 IBM - OS/2 Warp 4.0 SCO - UNIXWare 2.1.1... -
Page 10: Before You Begin
Before You Begin This manual will familiarize you with the features, installa- tion and use of your Twister LX. There are several symbols and conventions used throughout this manual to help draw your attention to a feature or to focus on important informa-... -
Page 11: Chapter 1 - Quick Installation
Before touch a safely grounded metal object. handling the Twister LX, 3. Remove the Twister LX from its packaging. be properly grounded 4. Configure and verify the system board’s jumper set- by using a special wrist tings (refer to Jumper Settings in Chapter 2). -
Page 12: Figure 1.1: Power-Up Screen
Ad- vanced and Security menu. When finished, go to the exit screen, select “Save Changes and Exit” and you are finished with the BIOS configuration (see Chapter 4). Twister LX System Board Manual... -
Page 13: Chapter 2 - Configuring The Twister Lx
Static Electricity The Twister LX is shipped from the factory in an anti- static bag. To reduce the possibility of damage from static discharge, it is important to neutralize any static charges your body may have accumulated before han- dling the board. -
Page 14: Twister Lx System Board
Chapter 2: Configuring the Twister LX Twister LX System Board Figure 2-1: Twister LX System Board Diagram Twister LX System Board Manual... -
Page 15: Jumper Settings
Chapter 2: Configuring the Twister LX Jumper Settings This section provides the jumper settings for the Twister LX system board. Table 2-1 lists the jumper settings to select the system speed settings. , l a , l a , l a... -
Page 16: Table 2.3: Case & Peripheral Connections
Chapter 2: Configuring the Twister LX Table 2-3 lists the connector and peripheral connections. i t c i s n t o l r o t ) s t t l o r e f t r o c i v... - Page 17 Chapter 2: Configuring the Twister LX i t c ; r e r o t s i s ; r e t a t r o t u r r i s s r t n i s u e t t ;...
- Page 18 Chapter 2: Configuring the Twister LX Twister LX System Board Manual...
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Page 19: Chapter 3 - Installing The Twister Lx
Micronics’ Technical Support Department. System Memory Support The flexibility of the Twister LX is augmented by its support for EDO and SDRAM memory. The Twister LX supports ECC (with 72-bit DIMMs) via the chipset. -
Page 20: Installing The Twister Lx
Installing the Twister Installation of the Twister LX system board depends on the type of case you use. The Twister LX is designed for the Baby AT form factor and may be installed into most cases. Install the system board into the chassis using the tools and equipment required and make all necessary case connec- tions. -
Page 21: System Memory
Chapter 3: Installing the Twister LX System Memory System memory is necessary to operate the Twister LX system board. The Twister LX has three 3.3V unbuffered 64/72-bit, 168-pin DIMM sockets for a maximum of 768MB of EDO memory and 384MB of SDRAM memory. -
Page 22: Memory Configurations
Chapter 3: Installing the Twister LX Memory Configurations DIMM memory configuration is auto-banking and there- fore does not need to be installed in any particular order. The following tables list the most common memory configurations. Table 3-1: Memory Configurations Twister LX System Board Manual... -
Page 23: Table 3.1A: Memory Configurations
Chapter 3: Installing the Twister LX Table 3-1a: Memory Configurations Twister LX System Board Manual... -
Page 24: Cpu Installation
Chapter 3: Installing the Twister LX CPU Installation The Twister LX is designed to support single Pentium II processors. The Pentium II processor comes installed in a Single Edge Contact (SEC) cartridge that connects into "Slot 1" on the system board. -
Page 25: Installing A Cpu
Chapter 3: Installing the Twister LX 2. Place the Retention Base over the Slot 1 connector and insert it down into the Support Bridges with studs. Note the “Keyed” location of both Slot 1 and the Retention Base. Keyed Retention Base 3. - Page 26 Chapter 3: Installing the Twister LX 4. The Heatsink components consist of a top bar, base and two pins. Gently insert the Heatsink base into the holes next to the Slot 1 socket. Push down until the base snaps into place.
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Page 27: Cpu Installation Overview
Chapter 3: Installing the Twister LX CPU Installation Overview CPU Installation Overview 1. Mount the Retention Mechanism for the CPU. 2. Mount the (optional) heatsink support base onto the system board. 3. Slide the CPU into the Retention Mecha- nism. -
Page 28: Cpu Installation (Box Version)
Chapter 3: Installing the Twister LX CPU Installation (Boxed version) A boxed version of the CPU is offered through Intel. This packaging uses an active cooling fan. The mounting hardware is described below. For detailed instructions, please refer to the documentation that is supplied with your CPU. -
Page 29: Installing Dimms
Chapter 3: Installing the Twister LX Installing DIMMs To install the DIMMs, locate the memory banks on the system board and perform the following steps: 1. Hold the DIMM so that the notched edge is aligned with the notch on the DIMM socket (Figure 3-1). -
Page 30: Installing A Pci Peripheral Card
Chapter 3: Installing the Twister LX Installing a PCI Peripheral Card Micronics PCI slots accommodate all PCI peripherals that meet the PCI 2.1 specifications. Follow the steps below to install a PCI card: 1. Turn the computer system off and remove its cover. -
Page 31: Installing An Isa Peripheral Card
Chapter 3: Installing the Twister LX Installing an ISA Peripheral Card Micronics ISA slots accommodate all standard ISA peripherals. Follow the steps below to install an ISA card: 1. Turn the computer system off and remove its cover. 2. Choose an unused ISA slot and remove the slot cover. -
Page 32: Installing An Agp Peripheral Card
Chapter 3: Installing the Twister LX Installing an AGP Peripheral Card Micronics AGP slot can accommodate all AGP periph- erals that meet the Intel AGP bus specifications. Follow the steps below to install an AGP card: 1. Turn the computer system off and remove its cover. -
Page 33: Chapter 4 - The Bios Setup Utility
Initial Boot Up Power up the Twister LX. If the system does not properly boot, check all your cables and peripherals for bad connections. You may also get beep codes or error messages. -
Page 34: Figure 4.1: Power-Up Screen
When “Press DEL to enter Setup” appears at the bottom of the screen, press the <DEL> key to start the Setup program. The main CMOS Setup utility screen (Figure 4-2) appears. Note that the Setup program can only be activated during the boot sequence. Twister LX System Board Manual... -
Page 35: Running The Setup Program
Chapter 4: The BIOS Setup Utility Running the Setup Program The Twister LX system board has six primary CMOS configuration screens: main setup menu, Standard CMOS Setup, BIOS Features Setup, Chipset Features Setup, PNP/PCI Configuration and Integrated Peripherals screen. In addition, there are four screens containing options that... -
Page 36: Standard Cmos Setup
The BIOS supports up to four IDE drives. You can specify the physical and electronic properties of the disk drives installed. Relevant specifications include the type, num- ber of cylinders (CYLS), heads (HEAD), write pre- compensation time (PRECOMP), read/write head land- Twister LX System Board Manual... - Page 37 A small section in the lower right corner of the screen displays important information about your system that includes the base, extended and other memory sizes. They are updated automatically by the Setup program according to the status detected by the BIOS self-test. Twister LX System Board Manual...
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Page 38: Bios Features Setup
CPU Internal Cache This selection enables the internal CPU. The default setting is Enabled. External Cache The External Cache selection enables or disables the external (L2) cache and the onboard secondary cache. The default setting is Enabled. Twister LX System Board Manual... - Page 39 NumLock key when the system boots. When toggled On, the numeric keypad generates numbers instead of con- trolling cursor operations. The default setting is On. Boot Up System Speed Select the system boot up speed. The default setting is High. Twister LX System Board Manual...
- Page 40 VGA card and are processed by the MPEG card. Enable this option only if you have MPEG connections through the VGA feature connector; this means you can adjust PCI/VGA palettes. The default setting is Disabled. Twister LX System Board Manual...
- Page 41 Video BIOS Shadow Enabling this selection allows you to shadow the BIOS on the video card for faster video performance. Some video cards do not support video BIOS shadowing. Disable this option if problems occur. Twister LX System Board Manual...
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Page 42: Chipset Features Setup
This selection configures the DRAM read/write timing CMOS and for maximum performance. The options are 60ns (de- run the Setup fault) and 50ns. NOTE: Before changing this selection, program verify the speed of the DRAM currently installed. again. Twister LX System Board Manual... - Page 43 This field applies only if EDO DRAM is in- stalled in the system. DRAM Data Integrity Mode Select Parity or ECC (error-correcting code), according to the type of installed DRAM. Twister LX System Board Manual...
- Page 44 (in bus clock cycles) for 16-bit and 8-bit I/O. Memory Hole at 15M-16M You can reserve this area of system memory for the ISA adapter ROM. When this area is reserved, it cannot be cached. Twister LX System Board Manual...
- Page 45 DRAM is installed in the system. SDRAM CAS Latency Time When synchronous DRAM is installed, the number of clock cycles of CAS latency depends on the DRAM timing. Do not reset this field from the default value specified. Twister LX System Board Manual...
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Page 46: Power Management Setup
1 minute in each mode. User Define Set each mode individually. Select time-out periods in the PM Timers section. Min Saving Minimum power savings. Inactivity period is 1 hour in each mode (except the hard drive). Twister LX System Board Manual... - Page 47 Select an IRQ setting to be used by the modem if Resume by Ring is enabled. Doze Mode After the selected period of system inactivity (1 minute to 1 hour), the CPU clock runs at slower speed while all other devices still operate at full speed. Twister LX System Board Manual...
- Page 48 Standby Mode. Resume By Ring When this feature is turned on, the system will wake up when an incoming call is detected on your modem. You must set up the Mode Use IRQ selection. Twister LX System Board Manual...
- Page 49 Suspend Mode. Reload Global Timer Events You can disable monitoring of common interrupt re- quests so they do not awaken the system from, or reset activity timers for Standby mode. Twister LX System Board Manual...
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Page 50: Pnp/Pci Configuration Setup
The default setting is No. Resources Controlled By The Twister LX’s Plug and Play BIOS can automatically configure all the boot and Plug and Play-compatible Twister LX System Board Manual... - Page 51 AT bus specification, requiring a specific DMA channel or older ISA cards that use jumpers to adjust resources. PCI/ISA PnP Devices compliant with the Plug and Play standard, whether designed for PCI or ISA bus architecture. Twister LX System Board Manual...
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Page 52: Load Bios Defaults
BIOS defaults. To select LOAD SETUP DEFAULTS, high- light this option on the main menu screen and press <Enter>. Press <Y> or <N> when the program prompts you with the Load Setup Defaults question. Twister LX System Board Manual... -
Page 53: Integrated Peripherals
IDE Primary/Secondary Master/Slave PIO The four IDE PIO (Programmed Input/Output) fields allow you to set a PIO mode (0-4) for each of the four IDE Twister LX System Board Manual... - Page 54 The default setting is 8MHz. Onboard FDC Controller Select Enabled (default) to use the floppy disk controller installed on the system board. If you install an add-in controller or the system has no floppy drive, select Disabled. Twister LX System Board Manual...
- Page 55 Select SPP (default) unless your hardware and software require one of the other modes offered in this field. ECP Mode Use DMA Select a DMA channel for the port. The default setting is channel 3. Twister LX System Board Manual...
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Page 56: Supervisor Password
Supervisor Password. The User Password allows power-on access to the system, but will not allow you to modify the CMOS settings. NOTE: The User Password can only be set after setting the Supervisor password. Twister LX System Board Manual... -
Page 57: Ide Hdd Auto Detection
Normal mode for your hard disk drive if you will be using UNIX. If the system’s hard disk drive has a capacity of over 528MB and supports LBA functions, you may enable either the LBA mode or the Large Mode. Twister LX System Board Manual... -
Page 58: Hdd Low Level Format
Chapter 4: The BIOS Setup Utility HDD Low Level Format Micronics recommends that only trained technicians use this utility. This selection allows you to perform a low level format of your hard disk drive. To select the HDD LOW LEVEL FORMAT option, highlight this option on the main menu screen and press <Enter>. -
Page 59: Save And Exit Setup
From the main menu screen highlight the EXIT WITHOUT SAVING option and press <Enter>. Press <Y> and the system will exit the setup program, then reboot without saving any of the changes made. Twister LX System Board Manual... - Page 60 Chapter 4: The BIOS Setup Utility Twister LX System Board Manual...
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Page 61: Chapter 5 - Special Features
Chapter 5: Special Features Chapter Special Features The Twister LX achieves high reliability and high perfor- mance with numerous features. Accelerated Graphics Port (AGP) With the introduction of the Pentium II and the 440LX AGPset, graphics took the next step onto the AGP freeway. -
Page 62: Ultra Dma/33 Ide
IRQ set- tings, DMA chan- nels and I/O addresses. With USB, you can attach and detach peripherals without opening the computer or even shutting it down. Twister LX System Board Manual... -
Page 63: Appendix A: Technical Information
Auto detection of memory size Auto detection and display of EDO and SDRAM memory. Auto detection of IDE hard disk types Soft Power Down (for ATX power supply) Instant On and Quick Boot Multi-boot II DMI 2.0/SMI/ACPI Twister LX System Board Manual... - Page 64 Supports 360K - 2.88MB formats Auto detection of add-in floppy controllers PCI IDE Ports: Ultra DMA/33 IDE Two 40-pin IDE connectors (Primary and Secondary IDE). Multiple sector transfer support Auto detection of add-in IDE board Supports all ATAPI devices Twister LX System Board Manual...
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Page 65: Environmental Specifications
Appendix A: Technical Information Environmental Specifications The environment in which the Twister LX is located is critical. Micronics recommends the following environmental specifica- tions: Temperature Range Operating: 50 to 104 degrees Fahrenheit (10 to 40 degrees Celsius). Non -Operating: 50 to 140 degrees Fahrenheit (10 to 60 degrees Celsius). -
Page 66: Battery Disposal
Appendix A: Technical Information Battery Disposal WARNING: Please do not open battery, dispose of in fire, recharge, put in backwards or mix with used or other battery types. The battery may explode or leak and cause personal injury. Twister LX System Board Manual... -
Page 67: Support And Information Services
The model name, 09 part number and serial number of your Micronics product, which is silk screened on the face of the Twister LX system board. Your computer information such as CPU type, operat- ing system, amount of installed memory and other peripherals installed in your computer. -
Page 68: Table A.1: Support And Information Services
6 3 - ) x a d i h o r p s t c 2 1 ( 2 1 ( ) 6 5 ) x a ) x a Table A-1: Support and Information Services Twister LX System Board Manual... -
Page 69: Appendix B - Post Messages
A key is jammed or was Make sure the keys are ERROR nn held down during boot. not jammed or dirty. KEYBOARD Keyswitch on the front of Unlock the keyswitch. LOCKED the case is locked. Twister LX System Board Manual... - Page 70 CHECKSUM BAD - corrupted or modified reconfigure the system. RUN SETUP incorrectly. SYSTEM RAM System RAM failed. Replace defective RAM. FAILED AT OFFSET: nnnn SYSTEM TIMER Timer test failed. Requires repair of system ERROR board. Twister LX System Board Manual...
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Page 71: Appendix C - Beep And Post Codes
POST card. This peripheral card is inserted into one of the ISA slots and has an LED (or LCD) read out showing the contents of port 80h. The following tables list all beep codes and POST rou- tines. Twister LX System Board Manual... - Page 72 Load alternate registers with CMOS values. Set initial CPU speed. Initialize interrupt vectors. Initialize BIOS interrupts. 2-1-2-3 Check ROM copyright notice. Initialize manager for PCI Option ROMs. Check video configuration against CMOS. Initialize PCI bus and devices. Twister LX System Board Manual...
- Page 73 Initialize Extended BIOS Data Area. Initialize floppy controller. Initialize hard-disk controller. Initialize localbus hard-disk controller. Jump to UserPatch2. Build MPTABLE for multi-processor boards. Disable A20 address line. Clear huge ES segment register. Search for option ROMs. Shadow option ROMs. Twister LX System Board Manual...
- Page 74 BIOS ROM is OK. Do a complete RAM test. Do OEM initialization. Initialize interrupt controller. Read in the bootstrap code. Initialize all vectors. Boot the Flash program. Initialize the boot device. Boot code was read OK. Twister LX System Board Manual...
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Page 75: Appendix D - Updating The System Bios
Appendix D: Updating the System BIOS Appendix Updating the System BIOS The Micronics system boards are designed so that the BIOS can be reprogrammed using a BIOS file. You can easily FLASH a BIOS by following the steps below: 1. After downloading the appropriate BIOS file from our BBS or Website, extract it to a bootable MS- DOS 6.X diskette. - Page 76 Appendix D: Updating the System BIOS Twister LX System Board Manual...
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Page 77: Appendix E: Warranties And Notices
Returned product should be shipped prepaid or hand carried to Micronics. The purchaser assumes risk of loss or damage in transit, and unless otherwise agreed to in writing by Micronics, will pay inbound shipping charges. -
Page 78: Non-Warranty Service
Micronics will not be liable for any lost profits or any indirect, special incidental or consequential damages in connection with the product, even if Micronics has been advised of the possibility of such damages. -
Page 79: Fcc Statement
Consult your dealer or an experienced radio/TV technician for help. To meet FCC requirements, shielded cables are required. NOTE: Changes or modifications not expressly approved by Micronics could void your authority to operate the equipment. Twister LX System Board Manual... -
Page 80: Glossary
Buffered DIMMs - The 168-pin buff- See boot and warm boot. ered DIMM modules use buffer logic chips on their control lines to reduce loading on the system board. This buff- ering action increases the maximum Twister LX System Board Manual... - Page 81 Capabilities Port. A standard set by dard Architecture. A well-established Hewlett Packard and Microsoft Corpo- bus standard that originated with the ration to expand the capabilities of the IBM AT. See PCI and VESA Local Bus. parallel port. Twister LX System Board Manual...
- Page 82 Memory. A type of memory that retains (8 bits) of data. The most commonly its data without requiring power. Once used forms of parity are even parity, odd written, it cannot be modified. See parity and checksums. EPROM and Flash ROM. Twister LX System Board Manual...
- Page 83 This struc- ture spreads the cache access across two or three cycles while maintaining a Twister LX System Board Manual...
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Page 84: Index
POST Messages - 63 BIOS Configuration - 37 Setup - 37 Bulletin Board System (BBS) - 62 Configuring the Twister LX- 11 Box Version - 30 Installation - 20 Overview 29, 30 Retention Mechanism - 26 Diagram (Twister LX) - 12... - Page 85 AGP Peripheral Card - 33 ISA Peripheral Card - 32 PCI Peripheral Card - 31 Quick Installation - 9 Jumper Settings - 13 Twister LX System Board Diagram - 12 Memory Configurations - 22 Installing - 25 Removing - 25...
- Page 86 Utility Programs Advanced Screen - 44 BIOS Setup - 37 Boot Screen - 52 Exit Screen - 53 IDE Device Submenu - 42 Main Screen - 39 Security Screen - 47 World Wide Web - 62 Twister LX System Board Manual...
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