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The COMPLETE GUIDE TO HIGH-PERFORMANCE COMPUTING WITH YOUR PANTERA COMPUTER User's Guide ® 1995 Micron Electronics, Inc. All rights reserved ZEOS shall not be held liable for technical or editorial omissions or errors made herein; nor for incidental or consequential damages resulting from furnishing, performance, or use of this material. This document contains proprietary information protected by copyright. No part of this document may be photocopied or reproduced by mechanical, electronic, or other means in any form without prior written permission of ZEOS. Limitation of remedies and liabilities: ZEOS' entire liability and customers' exclusive and sole remedy for damages from any cause whatsoever (including without limitation any nonperformance, misrepresentation, or breach of warranty) shall be limited to returning the products pursuant to the thirty (30) day money-back guarantee, or to repair or replace specific products or services that do not comply with the Limited Warranty offered by ZEOS. In no event will ZEOS be liable for any damages caused, in whole or in part, by customer, or for any economic loss, physical injury, lost revenues, lost profits, lost savings or other indirect, incidental, special or consequential damages incurred by any person, even if ZEOS has been advised of the possibility of such damage for claims. Some states do not allow the exclusion or limitation of incidental or consequential damages for consumer products, and some states do not allow limitations on how long an implied warranty lasts, so the above limitations or exclusions may not apply to you. Trademarks Adaptec is the trademark of Adaptec, Inc. IBM, XT, AT, and OS/2 are registered trademarks of International Business Machines Corporation. UNIX is a trademark of AT&T Laboratories. Phoenix is the trademark of Phoenix Technologies Ltd. Quadtel is the trademark of Quadtel Corp., A Phoenix Technologies Ltd. Co. Intel, 486SX, DX, DX2, DX4, and Pentium are trademarks of Intel Corporation. XENIX, MS-DOS, GW-Basic, and Microsoft are trademarks of Microsoft Corporation. Windows® is a registered trademark of Microsoft Corporation in the US and other countries. All other brand and product names are trademarks or registered trademarks of their respective companies. 700-0221-03 B2R5 ©Copyright 2 ZEOS Computer Systems OneYear Limited Warranty All new ZEOS computer systems come with a One Year Limited Warranty which provides that the products ZEOS manufactures or assembles, other than items such as software, disks and related documentation, will remain in good working condition, free from defects in material and workmanship under normal use and service, for a period of one year from the date of shipment from ZEOS. This warranty is limited to the original purchaser and is not transferable. During this one year period, ZEOS will repair or replace, at its option, any defective product or parts at no additional charge to the customer, provided that the defective product or part is returned, shipment prepaid, to ZEOS. All replaced products and parts become the property of ZEOS. Replacement parts shall be similar new or serviceable used parts. This Limited Warranty does not extend to any products which have been damaged as a result of accident, misuse, abuse (such as incorrect voltages, power surges, improper or insufficient ventilation, failure to follow ZEOS' provided operating instructions, "acts of God" or other situations beyond the control of ZEOS), or as the result of service or modification by anyone other than ZEOS. Non-ZEOS installed parts or components are not covered, nor is damage to ZEOS provided components covered as a result of their installation. This warranty does not cover work performed by others, all warranty work must be performed by ZEOS. ZEOS provides no warranties whatsoever on software. EXCEPT AS SPECIFICALLY PROVIDED IN THIS SECTION, THERE ARE NO OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 3 Contents 1. The Big Picture .......................................................................... 9 Desktop System At A Glance .................................................. 10 How to Open a Desktop Case ............................................................... 12 Inside a Desktop Computer ................................................................... 14 Tower System At A Glance ...................................................... 15 How to Open a Tower Case ................................................................... 17 Inside a Tower Computer ....................................................................... 19 Mini-Tower System At A Glance .............................................. 20 How to Open a Mini-Tower Case ........................................................... 22 Inside a Mini-Tower Computer............................................................... 24 2. The Mainboard ......................................................................... 25 Mainboard Features ................................................................. 25 PCI Local Bus 32-Bit High Speed Expansion Slots .............................. 26 Secondary Cache Subsystem............................................................... 26 Keyboard Activated Turbo Mode ............................................................ 26 Replacement Battery Connector ........................................................... 26 On-Board Peripherals ............................................................................ 27 Serial Ports ........................................................................................... 28 Parallel Port ........................................................................................... 29 PCI SCSI/ Ethernet Port ........................................................................ 30 Mainboard Diagram ................................................................. 31 Mainboard Connectors ............................................................. 32 Mainboard Jumpers ................................................................. 33 Jumper Settings ....................................................................... 34 LED's, Reset, Keyboard Lock .................................................. 34 Jumpers Described .................................................................. 35 CLR1 ..................................................................................................... 35 CLK1 ...................................................................................................... 36 Other Mainboard Features ....................................................... 36 3. Using SETUP............................................................................ 38 Main Menu ............................................................................... 39 Main Menu Options .................................................................. 40 System Time ......................................................................................... 40 System Date .......................................................................................... 40 Daylight Savings .................................................................................... 40 4 Diskette Drive A: ................................................................................... 40 Diskette Drive B: ................................................................................... 40 IDE Adapters (Four Provided) ............................................................... 41 Video System ........................................................................................ 43 Memory Control .................................................................................... 44 Memory Shadow ................................................................................... 45 Boot Sequence ...................................................................................... 46 System Memory .................................................................................... 46 Extended Memory ................................................................................. 46 Advanced Menu ....................................................................... 47 Integrated Peripherals ........................................................................... 47 PCI Devices .......................................................................................... 49 Plug & Play O/S ..................................................................................... 49 Reset Configuration Data ...................................................................... 50 Large Disk Access Mode ...................................................................... 50 OS Support for More Than 64MB .......................................................... 50 Security Options....................................................................... 51 Supervisor Password is ........................................................................ 51 User Password is .................................................................................. 51 Password on boot .................................................................................. 52 Diskette access .................................................................................... 52 Fixed disk boot sector ........................................................................... 52 System backup reminder ...................................................................... 52 Virus check reminder ............................................................................ 52 Power Options.......................................................................... 53 APM (Automatic Power Management)................................................... 53 Power Management Mode ..................................................................... 53 Parallel Port Activity .............................................................................. 54 Serial Port Activity ................................................................................ 54 IRQn ...................................................................................................... 54 Exit Menu Options ................................................................... 55 4. Expanding Your System .......................................................... 56 Adding an Expansion Board ..................................................... 56 How Disk Drives Work .............................................................. 58 How a Floppy Drive Works ....................................................... 59 How an IDE Hard Drive Works ................................................. 60 How a CD-ROM Drive Works ................................................... 61 5 Adding System RAM ................................................................ 62 Installing SIMMs....................................................................... 63 Adding System Cache Memory ............................................... 65 Installing a New CPU ............................................................... 67 5. Mainboard Specifications ....................................................... 69 Mainboard Environmental Specifications ................................. 69 9-Pin Serial Port (J2) Pin Assignment ...................................... 70 25-Pin Serial Port (J3) Pin Assignment .................................... 70 Parallel Port (J4) Pin Assignment............................................. 72 Handy Cheat Sheet ...................................................................... 74 Glossary ....................................................................................... 76 Index ............................................................................................. 78 6 FCC Compliance Statement for U.S. and Canadian Users Warning! Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15, Subpart B of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment on and off, the user is encouraged to try to correct the interference by one or more of the following measures. · Reorient or relocate the receiving antenna. · Increase the separation between the equipment and receiver. · Connect the equipment into an outlet on a circuit different from that to which the receiver is needed. · Consult the dealer or an experienced radio/TV technician for help. The connection of a non-shielded equipment interface cable to this equipment will invalidate the FCC Certification of this device and may cause interference levels which exceed the limits established by the FCC for this equipment. This equipment is a Class B digital apparatus which complies with the Radio Interference Regulations, C.R.C., c. 1374. Cet appareil numèrique de la classe B est conformè au Règlement sur le brouillage radioèlèctrique, C.R.C., ch. 1374. Caution: Lithium Batteries Danger of explosion if battery is incorrectly replaced. Replace lithium CMOS battery only with the same type or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions. 7 Customer Assurance Program Thirty (30) Day Money-Back Guarantee on Most Products. Any product (except for software, software disks, related documentation and consumables) purchased from ZEOS may be returned within thirty days from the date it was shipped by ZEOS for a full refund of the purchase price excluding original shipping charges. Returned products must be in as new condition, in original packing, complete with all warranty cards, manuals, cables and other materials as originally shipped; not modified or damaged. Any returned product must be shipped prepaid and insured. Any return must carry a ZEOS Return Merchandise Authorization (RMA) number, obtained from ZEOS, on the outside of each carton. Returns without RMA numbers will not be accepted. After thirty days from shipment, all sales are final and credit or refunds will not be given. 8 Chapter 1 - The Big Picture 1. The Big Picture Welcome to the ZEOS User's Guide! The User's Guide works with the Getting Started manual to help keep your system running trouble free, year after year. This User's Guide is divided into five chapters. Chapter 1, The Big Picture gives an overview of typical desktop, tower, and mini-tower systems. It also shows the major components inside the computer case. Chapter 2, The Mainboard gives detailed information about your mainboard. Chapter 3, Using SETUP explains how to use the SETUP utility program to customize the built-in features of your system's BIOS (Basic Input/Output System). Chapter 4, Expanding Your System shows how to add components and enhancements to your system. These include a video adapter card, a controller card, an internal modem, a floppy drive, an IDE hard drive, a CD-ROM drive, memory RAM SIMMs, system cache, and a new CPU. Chapter 5, Mainboard Specifications includes your mainboard specifications, environmental specifications, plus pin assignments for your serial and parallel ports. The Handy Cheat Sheet gives a short summary of some of the most needed or most forgotten commands. The Glossary gives short definitions of some common computer terms. 9 Chapter 1 - The Big Picture Desktop System At A Glance Brightness Power LED Contrast Hard Disk (HDD) LED Monitor Power Switch Reset Button Computer Power Switch (the "ON" button) ZEOS Pantera Keyboard Lock Turbo Button (not used) Turbo LED (not used) Drive bays with CDROM drive and 3.5" Floppy Drive Desktop Front 10 Chapter 1 - The Big Picture AC Power Cable 110-220V Switch Mouse Cable Connector (9-pin Serial COMA) Cooling Fan Video Connector (location varies with model) Parallel Printer Port Connector (LPT1) AC Power Cable Keyboard Connector Secondary Serial Port (25-pin COMB) Desktop Rear 11 Chapter 1 - The Big Picture How to Open a Desktop Case Caution: Whenever you open the case or work inside the computer there is danger of static electric shock. These shocks can permanently damage your equipment. Always ground yourself by touching the system cabinet before touching any internal component. We strongly recommend using an antistatic wrist strap attached to cabinet ground. To open a desktop case: 1. Turn off the monitor and system unit power. Unplug the AC power cables and disconnect any other cables attached to the back of the system unit. 2. Remove the plastic bezel from the back of the case by pulling it away from the case. 3. Remove the five mounting screws at the back of the case that hold the case cover to the system unit chassis. 4. Slide the case cover back and up. Be careful not to snag any cables or connectors inside the case. 5. Set the case cover aside while you work on your system. 6. When through, reattach the case cover, screws, bezel, and cables in the reverse order. 12 Chapter 1 - The Big Picture Mounting Screws Cover Chassis Plastic Bezel The illustrations above show the plastic bezel, screw locations, and how to remove a desktop PC's cover. 13 Chapter 1 - The Big Picture Inside a Desktop Computer Expansion Slots Power Supply CLR1 PWR1 J8 J10 FD1 J11 CLK1 Assembly : 010-0051-xx Mainboard VREG1 Socket 5 CPU The figure above shows some of the most common components inside the computer. The mainboard is the large circuit board at the bottom of the chassis. It is the heart of your system. All of the other components inside the case work for the mainboard. The power supply delivers electricity to the mainboard. The disk drives, keyboard connectors, and other parts of the system unit bring information to and from the mainboard. + J2 J3 J4 J5 + + + + J6 J7 J9 J12 + Hard Disk Drive + + + + + Front of Computer Floppy Drives, CD-ROM Drives, and TapeBackup Units 14 Chapter 1 - The Big Picture Tower System At A Glance Turbo LED (not used) Turbo Button (not used) Pantera Hard Disk (HDD) LED Power LED Reset Button Computer Power Switch (the "ON" button) Keyboard Lock Drive bays with CD-ROM drive and 3.5" Floppy Drive Brightness Contrast Monitor Power Switch ZEOS Tower Front 15 Chapter 1 - The Big Picture Secondary Serial Port (25-pin COMB) Keyboard Connector Cooling Fan AC Power Cable AC Power Cable Mouse Cable Connector (9-pin Serial COMA) Parallel Printer Port Connector (LPT1) Video Connector (location varies with model) Tower Rear 16 Chapter 1 - The Big Picture How to Open a Tower Case Caution: Whenever you open the case or work inside the computer there is danger of static electric shock. These shocks can permanently damage your equipment. Always ground yourself by touching the system cabinet before touching any internal component. We strongly recommend using an antistatic wrist strap attached to cabinet ground. Opening a tower case is similar to opening a desktop case. To open a tower case: 1. Turn off the monitor and system unit power. Unplug the AC power cables and disconnect any other cables attached to the back of the system unit. 2. Remove the plastic bezel from the rear of the case by pulling it away from the case. 3. Unscrew the six mounting screws at the back of the case that hold the case cover to the system unit chassis. 4. Slide the case cover back and up, taking care not to snag any cables or connectors inside. 5. Set the case cover aside while you work on your system. 6. Afterwards, reattach the case cover, screws, bezel, and cables in the reverse order. 17 Chapter 1 - The Big Picture These illustrations show the plastic bezel, screw locations, and how to remove the tower cover. Mounting Screws Cover Plastic Bezel Chassis 18 Chapter 1 - The Big Picture Inside a Tower Computer Power Supply Floppy Drives, CD-ROM Drives, and TapeBackup Units + + + + Front of Computer + J5 J12 + J2 J3 J4 J6 J7 J9 + FD1 + + Hard Disk Drive J11 Expansion Slots PWR1 CLR1 + J10 + CLK1 VREG1 J8 + Mainboard Socket 5 Tower systems have the same components as desktop systems. The figure above shows the mainboard and typical components inside a Tower case. The mainboard is the large circuit board at the bottom of the chassis. It is the heart of your system. All of the other components inside the case work for the mainboard. The power supply delivers electricity to the mainboard. The disk drives, keyboard connectors, and other parts of the system unit bring information to and from the mainboard. 19 Assembly : 010-0051-xx CPU Chapter 1 - The Big Picture Mini-Tower System At A Glance Drive bays with CD-ROM drive and 3.5" Floppy Drive Reset Button RESET Brightness QUAD SPEED disc COMPACT VOL Contrast POWER Pantera Monitor Power Switch Power LED Hard Disk (HDD) LED Computer Power Switch (the "ON" button) ZEOS Mini-Tower Front 20 Chapter 1 - The Big Picture Secondary Serial Port (25-pin COMB) + Cooling Fan Voltage Selector AC Power + + + + + 115 + + + + + AC Power Mouse Cable Connector (9-pin Serial COMA) + + Parallel Printer Port Connector (LPT1) + + + + Keyboard Connector Video Connector (location varies with model) Mini-Tower Rear 21 Chapter 1 - The Big Picture How to Open a Mini-Tower Case Caution: Whenever you open the case or work inside the computer there is danger of static electric shock. These shocks can permanently damage your equipment. Always ground yourself by touching the system cabinet before touching any internal component. We strongly recommend using an antistatic wrist strap attached to cabinet ground. Opening a mini-tower case is similar to opening a tower case. To open a mini-tower case: 1. Turn off the monitor and system unit power. Unplug the AC power cables and disconnect any other cables attached to the back of the system unit. 2. Remove the four mounting screws at the back of the case that hold the case cover to the system unit chassis. 3. Slide the case cover back and up, taking care not to snag any cables or connectors inside. 4. Set the case cover aside while you work on your system. 5. Afterwards, reattach the case cover, screws, and cables in reverse order. To remove the mainboard tray: 1. Remove the case cover (see above). 2. Remove all cables and connectors binding the mounting plate to interior components. 3. Remove the tray's four retaining screws (see opposite). 4. Carefully slide the tray out, checking for stray connectors. 22 Chapter 1 - The Big Picture + + + + + + 115 + + + + + Case Cover Mounting Screws + + + + Mainboard Tray Retaining Screws Case Cover The mainboard tray slides out, letting you reach expansion cards, the CPU, memory modules, etc. + + + + + + + + 115 + + + + + + + These illustrations show the screw locations, how to remove the mini-tower cover, and the location of the mainboard tray. + Chassis 23 + + + Chapter 1 - The Big Picture Inside a Mini-Tower Computer Power Supply Floppy Drives, CD-ROM Drives, and Tape Backup Units Hard Disk Drive Bays + + + + J12 + J5 1 J4 J2 J3 + + + + + + J6 J7 J9 + FD1 + J15 KBDLOCK + PWR1 CLR1 J10 J11 + J14 SPEAKER J13 + + Mainboard The mini-tower's mainboard tray slides in and out for easy maintenance. + Note: Be sure to detach all cables and connectors before you pull out the tray! J12 + J5 1 J4 J2 + + + J3 J6 J7 J9 + + FD1 + J15 KBDLOCK + PWR1 CLR1 J10 J11 + J14 SPEAKER J13 + + + + + J8 CLK1 PDF 24 VREG1 + Socket 5 RESET + + Assembly : 010-0051-xx Assembly : 010-0051-xx Expansion Slots + + J8 + CLK1 VREG1 + CPU Socket 5 RESET + Front of Computer + + + + + Chapter 2 - The Mainboard 2. The Mainboard The mainboard is the largest circuit board in the computer. It contains the CPU (Central Processing Unit), the Level 2 cache, expansion slots, ports and connectors for other components, and the system's main memory, or RAM (Random Access Memory). Mainboard Features Standard Features: · Intel Pentium (P54C) 75, 90, 100, 120, 133, 150MHz · Optional 512K Level 2 synchronous burst cache, write-back, direct-mapped · 200-Watt power supply (300-Watt optional) · 384MB RAM capacity (EDO, D-RAM) · RAM Configurations:2, 4, 6, 8, 10,12, 16, 32, 64, 128, 192, 384MB, etc. (See RAM Configurations, Chapter 4) · On-board PCI IDE drive controller supports 4 devices · On-board floppy drive controller · Three 32-bit PCI local bus expansion slots · Five 16-bit ISA expansion slots · EPP/ECP parallel port, software configurable · Two RS232, 16550 high-speed serial ports · Flash BIOS, relocatable to system RAM to boost performance · Clock/calendar with on-board battery backup · EPA Energy Star power management Factory Installed Options: · AMD SCSI controller on PCI bus · AMD network controller on PCI bus · AMD combined SCSI/network controller on PCI bus 25 Chapter 2- The Mainboard PCI Local Bus 32-Bit High Speed Expansion Slots The three PCI local bus, high speed expansion slots move information at up to 132 MB/s. This offers a high performance, 32-bit interface to support local bus peripherals such as video cards, LAN adapters and hard disk drives. Secondary Cache Subsystem The secondary (Level 2) cache subsystem enhances the performance of the CPU. The on-board cache controller allows cache memory to provide an ultra high-speed, 7-nanosecond buffer between the CPU and conventional (60 or 70ns) RAM. Your system can accommodate 0K or 512K of Level 2 cache. The single cache slot (labelled Cache Socket) is located next to the CPU. Keyboard Activated Turbo Mode Pantera systems do not use the Turbo button and Turbo LED (if present on your system case). Instead, pressing the + keys on the numeric keypad places the system in de-Turbo mode and issues one long beep. Pressing the + keys places the system in Turbo mode and issues two short beeps. Replacement Battery Connector Pantera mainboards include a connector for a replacement CMOS battery. Located near the parallel port header, this BATT_1 connector lets you add a new CMOS battery after the original runs out of energy. This battery maintains the customized BIOS settings in CMOS (Complimentary Metal-Oxide Semiconductor) memory. Your computer uses these hardware settings each time you turn it on. 26 Chapter 2 - The Mainboard On-Board Peripherals Your mainboard has all of the standard peripheral interfaces and many extras built in. This eliminates the need for many peripheral expansion cards and greatly enhances system reliability. Integrated on-board peripherals include: · Two serial ports, each with its own 16550 UART data buffer · Enhanced (EPP), Extended Capabilities (ECP), or bidirectional parallel port (assigned through SETUP) · Floppy drive controller (handles floppy drives up to 2.88Mb) · Two PCI local bus IDE hard drive controller ports, each capable of controlling two hard drives Factory installed options: · SCSI port (supports both SCSI-1 and -2 devices) · Ethernet port 27 Chapter 2 - The Mainboard Serial Ports Your mainboard has two RS-232C asynchronous serial ports, which are usually referred to as COM1 or (9-pin) and COM2 (25-pin) ports. The serial ports are used to attach mice, serial printers, modems, or other serial peripheral devices. Each serial port has its own 16550 UART data buffer, offering high-speed data transfer rates. You can install up to two additional serial ports (COM3 and COM4) simultaneously in your system. However, because MS-DOS does not manage more than two COM ports simultaneously very well, you shouldn't attempt to use more than two COM ports at the same time. Specifically, don't try to use COM1 and COM3 at the same time, or COM2 and COM4 at the same time. 28 Chapter 2 - The Mainboard Parallel Port Your computer's 25-pin parallel port is often called the printer port because it is usually used for printers. However, new devices that use this communication line, such as SCSI and network adapters, are rapidly entering the market. Your parallel port now fully supports the new IEEE 1284 parallel port specification. IEEE 1284 specifies how to speedup data transfers between a PC and peripheral devices, as well as ways to enhance the port's capabilities. IEEE 1284 is divided into three levels, or "modes," each offering different features: Bidirectional, Enhanced Parallel Port (EPP), and Extended Capabilities Port (ECP). Your Pantera can use all these modes. Pantera also incorporates "ChiProtect" circuitry which protects your computer from damage caused during printer poweron. Following are some features of your Pantera's parallel port modes. Bidirectional parallel port mode: Two-way communication between your PC and your printer, controlled by the PC. Allows parallel port to receive as well as send data. Enhanced Parallel Port (EPP) mode: Up to 300KB/sec. Two-way communication between a PC and parallel devices. Support includes onscreen status-reporting printers. Enables daisy chaining of up to seven devices from the parallel port using passthrough connectors on the peripheral devices. Extended Capabilities Port (ECP) mode: Up to 2MB/sec. two-way communication between a PC and parallel devices, as well as Direct Memory Access (DMA) and a memory buffer to smooth multitasking. Can compress data. May allow LAN-like networking between two PCs with parallel ports joined by high-speed cables. 29 Chapter 2 - The Mainboard PCI SCSI/ Ethernet Port The optional on-board SCSI (host adapter allows you to connect and control up to seven peripheral devices such as SCSI-compatible disk drives, tape backup units, communications devices, and CD-ROM drives. The SCSI port is a parallel, multitasking interface which supports both SCSI-1 and SCSI-2 devices. The SCSI port is configured from the system SETUP program. For SCSI system setup parameters, refer to the SCSI Control Menu in Using SETUP. The SCSI host adapter socket can also accept an Ethernet LAN controller chip allowing you to make direct Ethernet LAN connections for high speed local area network communications. Note: The on-board SCSI and LAN options are factory installed options only. on-board SCSI and LAN option can only be upgraded at the time of purchase. The 30 Chapter 2 - The Mainboard Mainboard Diagram 16 bit ISA Expansion Slots BIOS Chip 32-bit PCI Expansion Slots 16 bit ISA Expansion Slots Main Power P8, P9 9-pin Serial Keyboard 25-pin Port COMA Connector Serial Port J2 J1 COMB J4 Parallel Port J5 System Battery BIOS -+ slot 6 slot 7 slot 8 B1 Standard Power Connector P8 P9 J2 IR COM DB25 CLR1 Replacement Battery Header Batt_1 DB9 slot 1 slot 2 Parallel slot 3 slot 4 slot 5 J3 J4 J5 BATT_1 PWR1 Secondary Power P10 Floppy Floppy Header J6 Secondary IDE Hard Drive Header J7 Primary IDE Hard Drive Header J9 3v Power Conn. P10 Legacy ISA Header J8 RJ-45 J6 J7 3rd & 4th IDE HDD's or IDE CDROM J8 1st & 2nd IDE HDD's J10