MOTHERBOARD DIVISION User Guide PH440 NLX Motherboard www.mitsubishi-motherboard.
PH440 NLX Motherboard User Guide September 1998 Document History Issue Description Date 1.0 Preliminary May 98 1.1 Update for production motherboards July 98 1.2 Style update, added installation and upgrade guides September 98 Trademarks mentioned within this document are the properties of their respective owners. Details available on request.
PH440 NLX Motherboard User Guide September 1998 SAFETY AND REGULATORY NOTICES GENERAL Battery This product contains a lithium battery. Do not use a metal or other conductive implement to remove the battery. If a short-circuit is made between its positive and negative terminals the battery may explode. Replace a discharged battery with one of the same type; another type may explode or ignite. Follow the instructions contained in the User Guide to replace the battery.
PH440 NLX Motherboard User Guide September 1998 STANDARDS Safety This product complies with the American Safety Standard UL1950.
PH440 NLX Motherboard User Guide September 1998 CONTENTS 1 Overview 8 Motherboard Features ...................................................................................................................... 9 Configuration Options ................................................................................................................... 10 Build-time ................................................................................................................................
PH440 NLX Motherboard User Guide September 1998 Keyboard and Mouse ............................................................................................................... 24 Floppy Disk Interface............................................................................................................... 24 Serial Ports ............................................................................................................................... 24 Parallel Port...................................
PH440 NLX Motherboard User Guide 6 Electrical September 1998 39 Power Requirements ...................................................................................................................... 39 PCB................................................................................................................................................
PH440 NLX Motherboard User Guide 1 September 1998 OVERVIEW PH440 NLX is a Pentium II® processor-based NLX profile motherboard. The design of PH440 NLX is based around the following components. ♦ Intel Pentium II® processor in Slot 1. ♦ Intel 440BX host bridge and system controller. ♦ Intel PIIX4e ISA bridge and peripheral and power management controller. ♦ SMSC 37C677 I/O Combo. ♦ ATI AGP 3D Rage Pro AGP or 3D Rage IIC AGP video controller with SGRAM frame buffer.
PH440 NLX Motherboard User Guide September 1998 MOTHERBOARD FEATURES Form factor NLX, 9.0" wide x 11.2" long Processor Slot 1 with the VRM8.2 regulator on motherboard. Accepts all Pentium II® (100MHz bus) processors Core logic Intel 440BX & PIIX4e Cache L2 cache included on processor module. Memory – RAM 3 DIMM sockets to accept 168 pin un-buffered PC100 SDRAM modules. Memory Flash ROM 2Mb flash ROM. Includes BIOS, Setup-in-ROM, VGA, USB, DMI, 120MB floppy etc.
PH440 NLX Motherboard User Guide September 1998 CONFIGURATION OPTIONS Build-time The following items can be configurable at build-time and cannot be modified by the user. ♦ Video controller (Rage IIc or Rage Pro). ♦ Video memory and upgrade socket. ♦ AMC connector. ♦ MIDI & joystick header. ♦ Heceta II system monitor. ♦ +5V supply to VGA connector pin 9. ♦ Dual rear USB or single rear and riser. Contact Mitsubishi Electric Motherboard Division to determine available configurations.
PH440 NLX Motherboard User Guide September 1998 BLOCK DIAGRAM CORE VOLTAGE DC-DC CONVERTOR SLOT1 CPU HOST BUS CLOCK BUFFER 82443BX NORTHBRIDGE MEMORY BUS MEMORY DIMMS X 3 492 BGA AGP BUS ATI RAGE VGA MOTHERBOARD CLOCK GENERATOR NLX RISER PCI BUS HECETA 2 ESS SOLO1 AUDIO PIIX4e IDE 324 BGA ISA BUS VGA MEMORY SGRAMX2 XBUS BUFFER VGA MEMORY UPGRADE SODIMM 144 VGA OUTPUT LINE OUT SMSC 37C67X SUPER I/O 100 PQFP BIOS ROM TSSOP40 LINE IN MIC IN USB FDC SERIAL COM2 SERIAL COM1 PARALLE
PH440 NLX Motherboard User Guide 2 September 1998 INSTALLATION GUIDE Warning Static electricity can cause permanent damage to electronic components. You should be aware of this risk, and take precautions against the discharge of static electricity.
PH440 NLX Motherboard User Guide September 1998 Processor Core/Bus Ratio – J1-J4 J1 J2 J3 Ratio Speed at 100MHz 3.5 350 X 4.0 400 X 4.
PH440 NLX Motherboard User Guide 3 September 1998 UPGRADING THE MOTHERBOARD Caution Care must be taken in the purchase of upgrade parts to ensure both compatibility with the system and the compliance with appropriate approvals and certification, e.g. CE marking within Europe. Using non-approved parts may invalidate your warranty and system approvals.
PH440 NLX Motherboard User Guide September 1998 Fitting a DIMM Do not use excessive force. If the module will not fit easily, remove it and start again. The DIMM is inserted vertically and held in place by the clips at each end. Removing a DIMM Do not use excessive force. If the module will not come free easily, check that the holding clips are clear of the module ends. Press the tabs on both of the socket’s end clips at the same time. This releases the DIMM and lifts it partly out of the socket.
PH440 NLX Motherboard User Guide September 1998 5. Insert the SODIMM into the socket as shown in the illustration. 6. Replace any expansion cards you removed earlier and refit the system unit cover. You can now reconfigure your operating system to use the expanded capabilities of the video controller. THE PROCESSOR ASSEMBLY To remove the existing processor 1. Turn off the computer and unplug all power cords. Take suitable anti-static precautions and remove the system cover. 2.
PH440 NLX Motherboard User Guide September 1998 B 2 1 A 2 1 To fit a new processor 1. Take the processor out of its anti-static packaging. Hold the processor by its edges, or its heatsink and avoid touching the edge connector. ◊ The upgrade processor and the socket are keyed to ensure that the processor is installed in the correct orientation. It will only fit into the socket one way. 2.
PH440 NLX Motherboard User Guide September 1998 REPLACING THE BATTERY FOR THE CONFIGURATION CMOS The computer keeps a record of its current hardware configuration in a CMOS memory chip, which is sustained by a small battery. This battery has a life of up to 5 years. If you find that you have to reconfigure the computer every time you turn it on, or the date and time seem to be dramatically incorrect, the battery is probably failing and needs to be replaced.
PH440 NLX Motherboard User Guide 4 September 1998 ELECTRONICS PROCESSOR The PH440 NLX motherboard accepts the following Pentium II® processors operating at a bus speed of 100MHz. Processor Speed (MHz) Core/bus ratio Bus speed MHz 350 3.5 100 400 4.0 100 450 4.5 100 The processor core voltages are generated by switched-mode regulators on the motherboard to the Intel VRM8.2 specification.
PH440 NLX Motherboard User Guide September 1998 Concurrency The major busses (processor, memory, PCI and AGP) all operate independently to achieve a high degree of concurrency. Most CPU-DRAM and AGP-DRAM transfers can occur concurrently with PCI transfers and so consume no PCI bus bandwidth. LEVEL 2 CACHE The second level cache is contained within the processor module. There is no provision for a third level cache.
PH440 NLX Motherboard User Guide September 1998 VIDEO VGA Controller The VGA controller is an ATI Rage Pro or ATI Rage IIC device packaged in a 256 ball BGA. Video memory is via 2 SGRAM devices mounted on the motherboard (to give 2MB or 4MB) and an SODIMM connector that accepts SGRAM modules (2MB or 4MB extra). The VGA controller can be disabled via a motherboard jumper. It also provides an I2C bus to access other video features. The VGA controller has the following features.
PH440 NLX Motherboard User Guide September 1998 3 2D Display modes and maximum frame rates 256 colours 65536 colours 16.7M colours 2MB 2MB 4MB 2MB 4MB 640 x 480 200 200 200 200 200 800 x 600 200 200 200 160 160 1024 x 768 150 150 150 120 1152 x 864 120 120 120 85 1280 x 1024 100 100 85 1600 x 1200 76 76 Frame Buffer MB Screen Resolution Colour Depth Bits/pixel Display Buffer4 MB Z Buffer Texture Memory5 MB 2 512 x 384 16 0.38 x 2 0.38 0.
PH440 NLX Motherboard User Guide September 1998 AUDIO The audio subsystem is based around an ESS Solo1 CODEC. The audio subsystem can be completely depopulated to leave the standard PC beep function.
PH440 NLX Motherboard User Guide September 1998 STANDARD I/O The SMSC 37C677 Super IO controller provides standard I/O. This comprises the four functions described below. It is packaged in a 100-pin PQFP and is PC98 and ACPI compliant. Keyboard and Mouse The keyboard and mouse controller uses the Phoenix Multikey version 1.40 firmware. PS/2 style keyboard and mouse ports are provided on the rear panel. The ports are interchangeable.
PH440 NLX Motherboard User Guide September 1998 MOTHERBOARD POWER Processor Power A voltage regulator conforming to the Intel VRM8.2 standard supplies power for the processor core. The motherboard automatically selects the correct processor voltage. Battery An IEC-type CR2032 3V lithium coin cell and holder are fitted to the board. Note that when the motherboard is powered off but the AC remains connected (the standby rail is active) the battery is not used.
PH440 NLX Motherboard User Guide September 1998 SYSTEM MANAGEMENT There are three main elements to the system management hardware. ♦ A Heceta II system monitor ♦ The PIIX4e power management devices 9 and 10 ♦ Processor thermal diode ADCs Heceta II System Monitor The Heceta II provides the system monitor functions as described below and is accessed via the PIIX4e SMbus interface. It provides the following functions. ♦ Fan monitoring.
PH440 NLX Motherboard User Guide September 1998 BUS RESOURCE UTILISATION ISA DMA Channels DMA Data Width Usual Assignment Audio 0 8-bit ISA card option 1 8-bit ISA card default 8-bit 2 8-bit Floppy disk controller 3 8-bit ECP parallel port 4 - DMAC daisy chain 5 16-bit ISA card 6 16-bit ISA card 7 16-bit ISA card option Shaded areas indicate DMA channels not normally available on the ISA bus ISA Interrupts IRQ Usual Assignment Fixed? PCI IRQ0 System timer YES IRQ1 K
PH440 NLX Motherboard User Guide INTC# Audio & Slots INTD# Video & slots September 1998 PCI Device Selection (motherboard devices) Function number Address line Function 0 Device number (decimal) 0 0 11 Host bridge 0 1 0 12 PCI to PCI bridge 0 6 0 17 PCI Audio CODEC 0 7 0 18 South bridge 0 7 1 18 IDE controller 0 7 2 18 USB controller 0 7 3 18 Power management & SMbus controllers 1 06 0 16 AGP video controller Bus number PCI Arbitration PIIX4e request level B
PH440 NLX Motherboard User Guide 5 September 1998 BIOS SETUP & POST BIOS (pronounced “bye-oss”) stands for ‘basic input/output system’. The BIOS mediates between the computer’s hardware – the processor, memory, and so on – and its software – the operating system and your programs. The BIOS program is kept in permanent, read-only memory or ROM (although if necessary it can be upgraded by an authorised maintainer). BIOS Setup is a helpful utility that forms part of the BIOS program.
PH440 NLX Motherboard User Guide September 1998 Press To Enter Make a selection from the menu bar or enter a sub-menu. Home or End Move the cursor to the top or bottom of the current menu. Page up or Page down Move the cursor to the next or previous page of the current menu. F9 Restore the default settings for the fields on the current menu. F10 Save the changes you’ve made and exit from BIOS Setup. Caution The default BIOS settings may not be appropriate for your particular system.
PH440 NLX Motherboard User Guide September 1998 POWER-ON SELF-TEST Recoverable POST errors Whenever a recoverable (non-terminal) error occurs during POST, the BIOS displays an error message describing the problem (the most usual are described below). After some messages, you may be prompted to Press to resume, to enter Setup or just Press to enter Setup.
PH440 NLX Motherboard User Guide September 1998 Keyboard error [nn] or Keyboard controller error There is a problem with the keyboard or (less likely) the standard I/O controller on the motherboard. If POST discovers a stuck key it displays its scan code. Operating system not found An operating system cannot be located either on a system diskette or on a hard disk. Start BIOS Setup and check that the diskette and/or hard disk drives are specified correctly.
PH440 NLX Motherboard User Guide September 1998 The BIOS also issues Port 80h codes that can be displayed using a suitable diagnostic card. The codes can be used to determine the failure.
PH440 NLX Motherboard User Guide September 1998 Code POST Routine Description 36h Warm start shut down 37h Reinitialise the chipset (MB only) 38h Shadow system BIOS ROM 39h Reinitialise the cache (MB only) 3Ah Autosize cache 3Ch Advanced configuration of chipset registers 3Dh Load alternate registers with CMOS values 42h Initialise interrupt vectors 44h Initialise BIOS interrupts 45h POST device initialisation 46h Check ROM copyright notice 48h Check video configuration against CM
PH440 NLX Motherboard User Guide September 1998 Code POST Routine Description 70h Display error messages 72h Check for configuration errors 74h Test real- time clock 76h Check for keyboard errors 77h SMBus init devices 78h Initialise system monitor and check for intrusion 79h PCI audio init 7Ah Test for key lock on 7Ch Set up hardware interrupt vectors 7Eh Initialise coprocessor if present 80h Disable onboard Super I/ O ports and IRQs 81h Late POST device initialisation 82h Dete
PH440 NLX Motherboard User Guide September 1998 Code POST Routine Description A0h Set time of day A2h Check key lock A4h Initialise typematic rate A8h Erase F2 prompt AAh Scan for F2 key stroke ACh Enter SETUP AEh Clear IN POST flag B0h Check for errors B1h ROMPilot unload B2h POST done - prepare to boot operating system B4h One short beep before boot B5h Terminate QuietBoot B6h Check password (optional) B7h ACPI initialisation B8h Clear global descriptor table B9h Clean u
PH440 NLX Motherboard User Guide Code POST Routine Description E6h Checksum BIOS ROM E7h Go to BIOS E8h Initialise Multi Processor E9h Set Huge Segment EAh Initialilze OEM special code EBh Initialise PIC and DMA ECh Initialise Memory type EDh Initialise Memory size EEh Shadow Boot Block EFh System memory test F0h Initialise interrupt vectors F1h Initialise Run Time Clock F2h Initialise video F3h Initialise beeper F4h Initialise boot F5h Clear Huge segment F6h Boot to Mini
PH440 NLX Motherboard User Guide September 1998 The following codes are produced during the BIOS recovery sequence.
PH440 NLX Motherboard User Guide 6 September 1998 ELECTRICAL POWER REQUIREMENTS The motherboard power requirements are heavily dependent on system configuration and the software being used. The table below can be used as a guide to the likely power supply requirements. They are measured using a 400MHz Intel Pentium II® Processor, 3 memory modules and 8MB video memory running stress test software designed to yield worst case results. They should not, however, be regarded as maximum values.
PH440 NLX Motherboard User Guide 7 September 1998 CONNECTOR ASSIGNMENTS Keyboard and Mouse (PS/2 Mini-DIN) (Installation guide references F and G) 6 5 4 3 2 1 Pin Signal Direction Description 1 CLK I/O Data clock 2 VCC O +5V Power 3 GND - Signal ground 4 NC - No connect 5 DATA I/O Serial data 6 NC - No connect Serial Port 1 and Serial Port 2 (9 way D-type) (Installation guide references E and H) 1 5 9 6 10101 Pin Signal Direction Description 1 DCD I Data Carri
PH440 NLX Motherboard User Guide September 1998 Parallel Port (25 way D-type) (Installation guide reference J) 13 1 25 14 Pin Standard mode ECP mode 1 STB# STB# 2 DATA0 DATA0 I/O 3 DATA1 DATA1 I/O 4 DATA2 DATA2 I/O 5 DATA3 DATA3 I/O 6 DATA4 DATA4 I/O 7 DATA5 DATA5 I/O 8 DATA6 DATA6 I/O 9 DATA7 DATA7 I/O 10 ACK# ACK# I 11 BUSY BUSY I 12 PE PE I 13 SLCT SLCT I 14 AFD# AFD# O 15 ERR# ERR# I 16 INIT# INIT# O 17 SLIN# SLIN# O 18 GND GN
PH440 NLX Motherboard User Guide September 1998 VGA (15 way high density D-type) (Installation guide reference I) 1 5 6 10 15 11 Pin Signal Pin Signal 1 Red 9 +5V Power (fused) 2 Green 10 GND 3 Blue 11 No Connect 4 No Connect 12 Monitor ID 1 5 GND 13 HSYNC 6 Red Return 14 VSYNC 7 Green Return 15 Monitor ID 3 8 Blue Return USB Ports 0 and 1 (USB port 1 on the rear panel is an option) (Installation guide reference D) 1 4 Port 1 Port 0 1 4 Pin Signal Direction D
PH440 NLX Motherboard User Guide September 1998 Microphone Input (3.
PH440 NLX Motherboard User Guide September 1998 VESA/AMCC Support (40 way dual row header) (Installation guide reference 5) Pin Signal Pin Signal 1 Digital GND 2 PIXEL DATA0 3 Digital GND 4 PIXEL DATA1 5 Digital GND 6 PIXEL DATA2 7 EVIDEO 8 PIXEL DATA3 9 ESYNC 10 PIXEL DATA4 11 EDCLK 12 PIXEL DATA5 13 SAD4 14 PIXEL DATA6 15 Digital GND 16 PIXEL DATA7 17 Digital GND 18 DCLK 19 Digital GND 20 SAD0 21 VFSENSE# 22 SAD1 2 23 I C CLOCK 24 SAD2 25 Key 26 D
PH440 NLX Motherboard User Guide September 1998 NLX Riser Connector (Gold fingers) PCI Segment (Installation guide reference 9) Pin Signal Terminator Pin Signal A1 A2 -12V B1 PC_SPKR_RT NC B2 +12V A3 A4 +12V B3 PC_SPKR_LFT NC B4 +12V A5 3.3V A6 INTD# B5 PCI_CLK0 B6 GND A7 3.3V A8 INTA# RISER B7 PCI_CLK1 B8 SER_IRQ A9 INTB# A10 PCI_CLK2 RISER B9 PCI_INT2# MB (series) B10 3.3V A11 +3.
PH440 NLX Motherboard User Guide September 1998 NLX Riser Connector (Gold fingers) PCI Segment (Installation guide reference 9) Pin Signal Terminator Pin Signal Terminator A43 PCI_AD0 RISER (series) B43 PCI_AD11 RISER (series) A44 PCI_AD6 RISER (series) B44 PCI_AD12 RISER (series) A45 3.3V B45 PCI_AD9 RISER (series) A46 PCI_AD5 RISER (series) B46 3.
PH440 NLX Motherboard User Guide September 1998 NLX Riser Connector (Gold fingers) ISA Segment (Installation guide reference 9) Pin Signal Terminator Pin Signal ISA_RSTDRV MB Series B52 +5V ISA_IOCHK# MB 4k7 +5V B53 ISA_IRQ9 A52 A53 A54 ISA_SD6 MB 10k +5V B54 ISA_DRQ2 MB 5K6 GND A55 ISA_SD7 MB 10k +5V B55 ISA_SD3 MB 10k +5V A56 ISA_SD4 MB 10k +5V B56 ISA_OWS# MB 1k +5V A57 +5V B57 ISA_SD1 MB 10k +5V A58 ISA_SD2 MB 10k +5V B58 ISA_AEN A59 ISA_SD5 MB 10k +5V B59
PH440 NLX Motherboard User Guide September 1998 NLX Riser Connector (Gold fingers) ISA Segment (Installation guide reference 9) Pin Signal Terminator Pin Signal A94 ISA_SD9 MB 10k +5V B94 ISA_DACK6# A95 ISA_DRQ5 MB 5k6 GND B95 ISA_SD10 A96 ISA_DRQ6 MB 5k6 GND A97 +5V A98 ISA_SD12 A99 ISA_DACK7# A100 ISA_SD14 A101 ISA_MASTER# MB 10k +5V B96 +5V B97 ISA_SD11 Terminator MB 10k +5V MB 10k +5V B98 ISA_DRQ7 MB 5k6 GND B99 ISA_SD13 MB 10k +5V MB 10k +5V B100 ISA_SD15
PH440 NLX Motherboard User Guide September 1998 NLX Riser Connector (Gold fingers) IDE and Floppy Disk Interfaces (Installation guide reference 9) Pin Signal Terminator Pin Signal A102 PIDE_D8 MB series 33R B102 GND A103 PIDE_RESET# MB series 33R B103 PIDE_D7 MB series 33R A104 PIDE_D9 MB series 33R B104 PIDE_D6 MB series 33R A105 +5V B105 PIDE_D5 MB series 33R A106 PIDE_D4 MB series 33R B106 PIDE_D11 MB series 33R A107 PIDE_D10 MB series 33R B107 PIDE_D12 MB series 3
PH440 NLX Motherboard User Guide September 1998 NLX Riser Connector (Gold fingers) IDE and Floppy Disk Interfaces (Installation guide reference 9) Pin Signal A145 A146 Terminator Pin Signal GND B145 FD_WDATA# FD_WGATE# B146 FD_TRK0# A147 FD_STEP# B147 NC (MSEN0) A148 FD_WPRT# B148 FD_RDATA# A149 FD_HDSEL# B149 FD_DCHG# MITSUBISHI ELECTRIC MOTHERBOARD DIVISION Terminator PAGE 50 OF 51
PH440 NLX Motherboard User Guide September 1998 NLX Riser Connector (Gold fingers) Miscellaneous (Installation guide reference 9) Pin Signal Terminator Pin Signal A150 SMBUS_DATA MB 2K7 +3V3 B150 GND A151 SMBUS_CLK MB 2K7 +3V3 B151 NC (IRSL0) A152 FANTACH1 MB 10K +12V B152 NC (IRSL1) A153 FANTACH2 MB 10K +12V B153 NC (IRSL2) A154 FANTACH3 B154 IO_IRTX A155 IO_FANCTL B155 IO_IRRX A156 +5V B156 NC (FPSLEEP) A157 NLX_USBP1- B157 FPRST# A158 NLX_USBP1+ B158 GND A15
