Table of Contents

Advertisement

Quick Links

Item Checklist
Completely check your package. If you discover damaged or missing items, contact your
retailer.
SynactiX 5EP/5EI mainboard
QDI Driver Utility CD
I/O shield(optional)
1 HD IDE cable
1 FDD cable
QDI Serial Product R.M.A. Warranty Card
User's manual
Notice
The information in this document is subject to change in order to improve reliability, design,
or function without prior notice and does not represent a commitment on the part of this
company. In no event will we be liable for direct, indirect, special, incidental, or consequen-
tial damages arising out of the use or the possibility of such damages.
All trademarks are the property of their respective owners.
If you require further information, please visit our web-site: "www.qdigrp.com".

Advertisement

Table of Contents
loading

Summary of Contents for Quantum Design SynactiX 5EP

  • Page 1 Item Checklist Completely check your package. If you discover damaged or missing items, contact your retailer. SynactiX 5EP/5EI mainboard QDI Driver Utility CD I/O shield(optional) 1 HD IDE cable 1 FDD cable QDI Serial Product R.M.A. Warranty Card User’s manual...
  • Page 2 20th Floor, Devon House, Taikoo Place, 979 King’s Road, Quarry Bay, Hong Kong declares that the product Mainboard SynactiX 5EP/5EI is in conformity with (reference to the specification under which conformity is declared in accordance with 89/336 EEC-EMC Directive) þ...
  • Page 3 Declaration of conformity Trade Name: QDI Computer ( U. S . A. ) Inc. Model Name: SynactiX 5EP/5EI Responsible Party: QDI Computer ( U. S. A.) Inc. Address: 41456 Christy Street Fremont, CA 94538 Telephone: (510) 668-4933 Facsimile: (510) 668-4966...
  • Page 4 This manual is suitable for SynactiX 5EP/5EI series of mainboards. Each mainboard is carefully designed for the PC user who wants diverse features. SynactiX 5EP: without ISA slot , onboard audio and LAN SynactiX 5EI: with ISA slot, without onboard audio and LAN -A: with onboard audio...
  • Page 5: Table Of Contents

    C O N T E N T S 1. Introduction.............1 Overview.................1 Key Features..............1 2. Installation Instructions ........4 External Connectors..........4 PS/2 Keyboard/Mouse Connector........4 USB1,2 and LAN connectors...........4 Parallel Port, Serial Port Connectors.......5 Line-in, Microphone-in, Speaker-out jack and MIDI/Joystick connector..........5 USB3,4 Connectors............5 Diagnostic LED Function..........6 ATX Power Supply Connector &...
  • Page 6 C O N T E N T S Jumper Settings............Overclocking Jumper Setting (JFS0, JFS1) .....13 Enable Front/Back Panel USB Device Wake-up Function (JFUSB/JUSB)..............14 CPU Core Voltage Setting(JVID0~4).........14 Clear CMOS(JCC).............16 Enable/Disable on-board audio (JSD)......16 Enable keyboard password power-on function(JKB)..17 BIOS Protection Jumper (JAV).........18 BIOS Description ..........19...
  • Page 7 Caution 1 Be sure to unplug the AC power supply before adding or removing expansion cards or other system peripherals, especially the SDRAM memory, otherwise your mainboard or the system memory might be seriously damaged. Caution 2 Be sure to add some Silicone Grease between the CPU and the heatsink of FAN to keep them fully contact , meanwhile to meet the heat sink requirement.
  • Page 8 T-- This page is intentionally left blank --his...
  • Page 9: Introduction

    Chapter 1 Introduction Introduction Overview SynactiX 5EP/5EI green mainboard utilizes Intel ® 815EP chipset, 815EP contains two com- ponents: the 82815EP-B step Memory Controller Hub(MCH) and the 82801BA I/O Control- ler Hub2(ICH2), providing a fully compatible, high performanced and cost-effective PC/ ATX platform.
  • Page 10 Implements Write Ping-Pong Buffer for faster write performance. Two fast IDE interfaces supporting four IDE devices including IDE hard disks and CD- ROM drives. Onboard LAN (SynactiX 5EP-L/-AL, SynactiX 5EI-L/-AL available) 10/100 Mbit/sec Ethernet support. 10/100M LAN interface built-in on board.
  • Page 11 Supports ACPI power status: S0 (full-on), S1 (power on suspend), S3 (STR), S4(STD)(Windows Me, Windows 2000) and S5 (soft-off). Expansion slots 1 AGP slot. 6 PCI slots (SynactiX 5EP series). 5 PCI slots + 1 ISA slot (SynactiX 5EI series). 1 CNR slot. Manual for SynactiX 5EP/5EI...
  • Page 12 T-- This page is intentionally left blank --his...
  • Page 13: Installation Instructions

    PS/2 mouse connector is for the usage of PS/2 mouse. PS/2 Mouse Connector PS/2 Keyboard Connector USB1, 2 and LAN Connectors (SynactiX 5EP-L/-AL, SynactiX 5EI-L/-AL available) Two USB ports are for connecting USB devices. The RJ-45 connector is for onboard LAN. LINK...
  • Page 14: Parallel Port, Serial Port Connectors

    UART2 Line-in jack, Microphone-in jack, Speaker-out jack and MIDI/Joystick Connector (SynactiX 5EP-A/-AL, SynactiX 5EI-A/-AL available) The Line-in jack can be connected to devices such as a cassette or minidisc player to playback or record. The Microphone-in jack can be connected to a microphone for voice input.
  • Page 15: Diagnostic Led Function

    If you change “Soft-off by PWR-BTTN” from default “Instant-off” to “De- lay 4 Secs” in the “POWER MANAGEMENT SETUP” section of the BIOS, the power switch should be pressed for more than 4 seconds before the system pow- ers down. Manual for SynactiX 5EP/5EI...
  • Page 16: Hard Disk Led Connector (Hd_Led)

    The connector can be connected to the keyboard lock switch on the case for locking the keyboard. HD_LED HDD LED(+) HDD LED(-) Orange(-) Green(-) LED+ POWER SPKDATA RESET EMPTY EMPTY EMPTY LED+ SLEEP LED- LED- LED+ LED- LED- KEYLOCK Manual for SynactiX 5EP/5EI...
  • Page 17: Infrared Header (Irda)

    Sound Connector (PC-PCI) This connector provides a bridge between the mainboard and PCI sound card to deliver sound compatibility under DOS real-mode environment. PC-PCI DMA REQUEST SERIAL INTERRUPT REQUEST 2 4 6 1 3 5 PC-PCI DMA ACKNOWLEDGE Manual for SynactiX 5EP/5EI...
  • Page 18: Wake-Up On Lan (Wol)

    “Wake-Up by LAN/Ring” as Enabled in the “Power Management Setup” section of the BIOS. Save and exit, then boot the operating system once to make sure this function takes effect. +5VSB Signal for waking up Manual for SynactiX 5EP/5EI...
  • Page 19: Audio Connector (Cd_In, Modem,Auxin)

    System Management Bus is a specific implementation of an I C bus, which is a multi- master bus, that is, multiple chips can be connected to the same bus and each one can act as a master by initiating data transfer. SMBDATA SMBCLK 5VSB Manual for SynactiX 5EP/5EI...
  • Page 20: Communication And Networking Riser Interface Connector(Cnr)

    If the connector has been closed once, the system will record the status and indicate the chassis has been opened. You can receive this information from QDI ManageEasy software. Indicate signal Manual for SynactiX 5EP/5EI...
  • Page 21: Expansion Slots & I/O Ports Description

    JFS0 (Auto, FSB setting) JFS1 (Auto, FSB setting) (Normal Status) (Enable onboard Audio)(Optional) (Enable KB Power-on) JVID0~4 (Auto, CPU core Voltage setting) (Optional) Open (Enable Flash BIOS) JFUSB/JUSB 1-2 (Enable Front/Back Panel USB Device Wake-Up Function) Manual for SynactiX 5EP/5EI...
  • Page 22: Overclocking Jumper Setting (Jfs0, Jfs1)

    (multiplier) lower in “CPU SpeedEasy Setup” in AWARD BIOS CMOS Setup. You can also adjust the CPU frequency by running StepEasy. We do not guarantee the overclocking system will be stable. Manual for SynactiX 5EP/5EI...
  • Page 23: Enable Front/Back Panel Usb Device Wake-Up Function (Jfusb/Jusb)

    CPU performance. But, we strongly recommend you not to adjust it unless you know the CPU well. “Auto”: pin1 and pin2 of JVID0, JVID1, JVID2 and JVID3 closed; “0”: pin2 and pin3 closed; “1”: pin1, pin2 and pin3 opened. 1 2 3 JVID4 JVID0 JVID1 JVID2 JVID3 Manual for SynactiX 5EP/5EI...
  • Page 24 1.625 1.65 1.675 1.70 1.725 1.75 1.775 1.80 1.825 Warning: To set CPU core voltage higher than its default core voltage is not suggested. If you do, we will not be responsible for any damages caused. Manual for SynactiX 5EP/5EI...
  • Page 25: Clear Cmos(Jcc)

    (Unplug the AC power supply) Enable/Disable onboard audio (JSD) (SynactiX 5EP-A/-AL, SynactiX 5EI-A/-AL available) If you want to use the on-board audio, set JSD with pin2 & pin3 closed (default). Other- wise, set JSD with pin1 & pin2 closed for disabling this function.
  • Page 26: Enable Keyboard Password Power-On Function(Jkb)

    ONLY, don’t set it to Password, or you’ll be unable to power up your system by the keyboard or the power button. 3. If you encounter the above problems, clear CMOS and set the jumper and BIOS option again. Manual for SynactiX 5EP/5EI...
  • Page 27: Bios Protection Jumper (Jav)

    CMOS once before boot up, otherwise the previous CPU’s higher bus ratio saved in CMOS will still take effect, and the new CPU may not work at that high speed. Manual for SynactiX 5EP/5EI...
  • Page 28 T-- This page is intentionally left blank --his...
  • Page 29: Bios Description

    If you require more detailed information concerning AWDFLASH Utility, for example, the different usage of parameters, please type A:\>AWDFLASH /? Note:BIOS version will update constantly.We will not be responsible for any BIOS description differ from your mainboard BIOS shown. Manual for SynactiX 5EP/5EI...
  • Page 30: Award Bios Description

    The basic CMOS settings included in “Standard CMOS Features” are Date, Time, Hard Disk Drive Types, Floppy Disk Drive Types, and VGA etc. Use the arrow keys to highlight the item, then use the <PgUp> or <PgDn> keys to select the value desired in each item. Manual for SynactiX 5EP/5EI...
  • Page 31 ‘Manual’, the related information should be entered regarding the following items. Enter the information directly from the keyboard and press < Enter>: CYLS number of cylinders HEAD number of heads PRECOMP write pre-compensation LANDZ landing zone SECTOR number of sectors MODE HDD access mode Manual for SynactiX 5EP/5EI...
  • Page 32 To support LBA or LARGE mode of HDDs, there must be some softwares involved which are located in Award HDD Service Routine(INT13h).It may fail to access a HDD with LBA (LARGE) mode selected if you are running under an Operating System which replaces the whole INT 13h. Manual for SynactiX 5EP/5EI...
  • Page 33 The POST of the BIOS will determine the amount of base (or conventional) memory installed in the system. Extended Memory The BIOS determines how much extended memory is presented during the POST. Total Memory Total memory of the system equals the sum of the above memory. Manual for SynactiX 5EP/5EI...
  • Page 34: Cpu Speedeasy Setup

    Adjust host clock maually: 66~99MHz/ Slight Adjust 100~132MHz/133~166MHz as the default of CPU host clock is 66MHz/100MHz/133MHz Warning: Be sure your selection is right. CPU over speed will be dangerous! We will not be responsible for any damages caused. Manual for SynactiX 5EP/5EI...
  • Page 35: Advanced Bios Features Setup

    Enable external L2 cache. This allows better Cache performance Disabled Disable external cache Enabled CPU L2 Cache Enable CPU L2 Cache ECC (Error Checking and ECC Checking Correction) function Disabled Disable CPU L2 Cache ECC function Manual for SynactiX 5EP/5EI...
  • Page 36 Typematic Delay 250-1000 The delay before keystrokes begin to repeat (Msec) Security Option Setup Select whether the password is required every System time the system boot or only when you enter setup Manual for SynactiX 5EP/5EI...
  • Page 37 This option is for protecting the system BIOS, Protect Disabled when enabled, writing to BIOS area is to be discarded Show Bootup Enabled The logo will be shown automatically when Logo Disabled system boots up, otherwise, no logo appears on the screen Manual for SynactiX 5EP/5EI...
  • Page 38: Advanced Chipset Features Setup

    Besides conventional memory, video BIOS area Cacheable is also cacheable Disabled Video BIOS area is not cacheable Memory hole at Enabled Memory hole at 15-16M is reserved for 15M-16M expanded ISA card Disabled Do not set this memory hole Manual for SynactiX 5EP/5EI...
  • Page 39 Close empty DIMM or PCI clock to reduce EMI DIMM/PCI Clk Disabled Do not close empty DIMM or PCI clock Spread Spectrum +/-0.38% Enable Clock Spread Spectrum to reduce EMI +/-0.25% -0.5% Disabled Disable Clock Spread Spectrum to reduce EMI Manual for SynactiX 5EP/5EI...
  • Page 40: Power Management Setup

    V-SYNC & H - SYNC signals from VGA card to monitor DPMS This function is enabled only for VGA cards supporting DPMS Note: When the green monitor does not detect the V/H-SYNC signals, the electron gun will be turned off Manual for SynactiX 5EP/5EI...
  • Page 41 Enabled The system could be waked up by USB (Key S3 by USB board/Mouse)devices from the Suspend to RAM status Disabled The system cannot be waked up by USB (Keyboard/Mouse)devices from the Suspend To RAM status Manual for SynactiX 5EP/5EI...
  • Page 42 Enabled Reload global timer, when there’s a FDD/COM/ Port LPT event Disabled Do not reload global timer PCI PIRQ[A - D]# Enabled Reload global timer, when there’s a PCI event. Disabled Do not reload global timer Manual for SynactiX 5EP/5EI...
  • Page 43: Pnp/Pci Configuration Setup

    BIOS automatically assigns them PCI/VGA Palette Disabled Default setting Snoop Enabled Non-standard VGA cards such as graphics accelerators or MPEG video cards may not show colors properly. Enabling this item can solve this problem Manual for SynactiX 5EP/5EI...
  • Page 44: Integrated Peripherals

    Disable onchip USB controller USB Keyboard Enabled Support USB Keyboard under legacy OS Support Disabled Do not support USB Keyboard under legacy OS Init Display First PCI Slot Initialize the PCI VGA first Initialize the AGP first Manual for SynactiX 5EP/5EI...
  • Page 45 Define the onboard serial port address and Serial Port 1/2 2F8/IRQ3, required interrupt number 3E8/IRQ4, 2E8/IRQ3, Auto Onboard serial port address and IRQ are automatically assigned Disabled Onboard serial port is disabled UART Mode Select Normal, IrDA Set UART mode ASKIR Manual for SynactiX 5EP/5EI...
  • Page 46 This option is used to configure Game Port 201,209 Address Address Midi Port Address Disabled This option is used to configure Midi Port 300,330,290 Address Midi Port IRQ This option is used to configure Midi Port Manual for SynactiX 5EP/5EI...
  • Page 47: Pc Health Status

    F, 80 C/176 F, 85 C/185 F, 90 C/194 C/151 C/205 C/158 C/167 C/176 C/185 C/194 C/205 Disabled No alarm beep Current System The temperature inside the chassis Temp. Current CPU The temperature of CPU Temperature Manual for SynactiX 5EP/5EI...
  • Page 48 F, 70 C/158 F, 75 C/167 F, 80 C/176 F, 85 C/176 F 185 F, 90 C/194 F, 95 C/205 C/185 C/194 C/205 Disabled The system remains on regardless of how much the CPU temperature is Manual for SynactiX 5EP/5EI...
  • Page 49: Password Setting

    If you have made all the changes to CMOS values and the system can not boot with the CMOS values selected in setup, clear CMOS after power-down, then power on again. System will boot with BIOS default settings. Manual for SynactiX 5EP/5EI...
  • Page 50: Appendix Aqdi Driver Utility Cd

    You could read all the contents contained in this CD, including Utility and Documents. The files included in Utility are: Awdflash.exe Cblogo.exe Lf.exe The files included in Documents are: Adobe Acrobat Reader V3.0 - Ar32e301.exe RecoveryEasy-FR.doc, SX1FR.doc, SX1E FR.doc, SX1EP FR.doc,SX2EP FR.doc, SX2E FR.doc, SX5EP/5EI FR.doc, Handbuch-manageEasy,etc. Manual for SynactiX 5EP/5EI...
  • Page 51: Appendix B Boot Logo

    “Show Bootup Logo” option as Disabled in the “BIOS FEATURES SETUP” section of the BIOS. * We reserve the right of modifying the default full-logo of QDI without further notification. Manual for SynactiX 5EP/5EI...
  • Page 52: Stepeasy

    2. Browse CD and run the setup.exe in the relative directory. Instruction Because there exist some risks for the CPU or the motherboard when you change the CPU frequency, please read the following and refer to the figure above carefully before tuning the CPU frequency. Manual for SynactiX 5EP/5EI...
  • Page 53 2. The performence of StepEasy is related to the CPU, SDRAM, peripheral equipments and the software running. 3. There exist some risks to change the CPU frequency for the CPU or motherboard. StepEasy can decrease the risks to minimum. But Legend QDI will not be responsible for any damages caused. Manual for SynactiX 5EP/5EI...
  • Page 54: Booteasy

    (3) PC fail to boot-up continually over three times. 2. Don’t power off or reset system while BootEasy initializing. 3. set “QDI BootEasy Feature” as “Disabled” before you replace system equipment. set “QDI BootEasy Feature” as “Enabled” after you accomplished replacing. Manual for SynactiX 5EP/5EI...
  • Page 55 (3)Il PC fallisce l’avvio piu’ di tre volte Non spegnere o resetta il PC durante l’avvio di BOOT EASY Disabilita il “QDI BootEasy Feature” prima di sostituire le periferiche ad esso collegate ( HDD, CD-ROM, ecc.) solo dopo riabilita il “QDI BootEasy Feature”. Manual for SynactiX 5EP/5EI...
  • Page 56 2. No apague su ordenador mientras se inicia BootEasy. 3. Desactive “QDI BootEasy Feature” seleccionándolo como “Disabled” antes de cambiar algún componente de su PC. Puede restaurar la opción “QDI BootEasy Feature” como “Enabled” al terminar la instalación de nuevos componentes. Manual for SynactiX 5EP/5EI...
  • Page 57 Falls Fehler im Flash ROM den Bootvorgang behindern, versucht das System drei Mal den Rechner hochzufahren, bei Misserfolg schaltet es auf die althergebrachte Art zu booten um, das heißt, es dauert wieder ebenso lang wie früher. Anschließend kann die BootEasy – Technik wieder aktiviert werden. Manual for SynactiX 5EP/5EI...
  • Page 58: Speedeasy Quick Setup

    Switch on power to the system and press the <Del> key to enter BIOS Setup. 4. Enter “CPU SpeedEasy Setup” menu to set up the CPU speed. 5. Save and exit BIOS Setup, your system will now boot successfully. Manual for SynactiX 5EP/5EI...
  • Page 59 The processor speed can be manually selected on the “CPU SpeedEasy SETUP” menu screen. Warning: Do not set CPU frequency higher than its working frequency. If you do, we will not be responsible for any damages caused. Manual for SynactiX 5EP/5EI...
  • Page 60: Bios-Protecteasy

    The list below shows the most important tasks Norton AntiVirus helps you perform:Scan for viruses on your computer;Remove viruses from your computer;Update your virus protection with LiveUpdate;Quarantine an infected file. you can go to the Symantec Web site to view an online tutorial: http://www.symantec.com/techsupp/tutorial/nav2001 Manual for SynactiX 5EP/5EI...
  • Page 61: Qdi Manageeasy

    QDI ManageEasy also helps you to use remote access and control computers in your local area network. With QDI ManageEasy, you can improve your management level. Manual for SynactiX 5EP/5EI...
  • Page 62: Recovereasy

    In this way, the original extension parti- tions will be changed to normal ones, and probably the sequence of the parti- tions will be changed also, but the contents contained in each partition will remain the same. Manual for SynactiX 5EP/5EI...
  • Page 63 : After choosing this function, only the final partition can be deleted in order to keep the continuous disk space. If the warning message is confirmed, the partition will be deleted. By pressing “N” or “ESC” key, the system quits. Manual for SynactiX 5EP/5EI...
  • Page 64 ESC : Exits from the Partition User Interface. If users made some mistakes, for example, wrongly delete a partition, do not press the “ESC” key, press the reset button on your system at once, in this way users can save their system. Manual for SynactiX 5EP/5EI...
  • Page 65 The time when the latest backup was done will be displayed in the status line. After confirming the warning message, the system performs the content recovery. By pressing “N” or “ESC” key, the system quits. Manual for SynactiX 5EP/5EI...
  • Page 66 : After choosing this function, the latest backup of the CMOS settings will be recovered. The system needs reboot in order to validate the new CMOS settings. Note : If users have never backuped the CMOS settings, a wrong message will be shown after choosing this function. Manual for SynactiX 5EP/5EI...
  • Page 67 RecoveryEasy build-in BIOS means all functions of RecoveryEasy including creating partition, backuping and restoring partition are built in BIOS. Users just need to down load the latest BIOS from our Website (http://www.qdigrp.com) when wanting to upgrade (It’s free!). Manual for SynactiX 5EP/5EI...
  • Page 68 What if partitions be wrongly deleted in RecoveryEasy? If users delete a partition in RecoveryEasy by mistake, they can save it by pressing the Reset button on their system at once. Do not press the “ESC” Manual for SynactiX 5EP/5EI...
  • Page 69 Recovery User Interface. Remember to create a mirror partition and backup before virus attacks the system. Manual for SynactiX 5EP/5EI...
  • Page 70 Francais Installation de la carte mère SynactiX 5EP/5EI Assurez-vous que votre ensemble est complet: carte mère, câbles IDE et Floppy, notice d’utilisation et CD-ROM d’installation. Vérifiez que l’alimentation est débranchée et reliez-vous à la terre par une courroie à votre poignet. A défaut, maintenez le contact de vos deux mains avec un objet lui-même relié...
  • Page 71 Ø Intelligently Recognition Reconnaissance automatique du matériel et installation des pilotes nécessaires Express Install Il est recommandé d’installer les programmes avec les options communes. A. Intel INF B. Pilote réseau C. Pilote audio Manual for SynactiX 5EP/5EI...
  • Page 72 En cliquant sur le bouton «Load», la fréquence sauvegardée est alors obtenue. En cliquant sur le bouton «Min», l’utilitaire sera minimisé en icône dans la barre des tâches. Si vous cliquez sur l’icône QSE dans la barre des tâches, l’utilitaire Manual for SynactiX 5EP/5EI...
  • Page 73 Le menu SpeedEasy Insérez le processeur correctement. Connectez les autres éléments du système (voir Installation). III. Au démarrage du système, pressez la touche <Suppr> pour entrer dans le Bios IV . Entrez dans le menu «CPU SpeedEasy setup» Manual for SynactiX 5EP/5EI...
  • Page 74 CPU dans ce menu soit en mode “SpeedEasy” soit en mode “Jumper Emulation” (voir manuel). ATTENTION: Ne pas sélectionner une fréquence de fonctionnement du CPU supérieure à celle indiquée par le constructeur. Nous déclinons toute responsabilité pour tout dégât qui en résulterait. Manual for SynactiX 5EP/5EI...
  • Page 75 SynactiX 1E CPU: Socket 370 PIII/Celeron/Cyrix III FSB: 66/100/133 Chipset: Intel 815E Form Factor: MicroATX/1 AGP/3 PCI/1CNR AGP: 4X AGP Graphics: Integrate Intel 3D Graphics /Extend 4M Display Cache by AIMM card Memory: 3 DIMM/512MB/PC 133 IDE: ATA33/66/100 USB: 4 USB Audio: Onboard AC’97 Audio LAN: Onboard Intel 100/10Mb Ethernet (Optional)
  • Page 76 SynactiX 2E CPU: Socket 370 PIII/Celeron/Cyrix III FSB: 66/100/133 Chipset: Intel 815E Form Factor: ATX/1 AGP/6 PCI/1 CNR AGP: 4X AGP Graphics: Integrate Intel 3D Graphics /Extend 4M Display Cache by AIMM card Memory: 3 DIMM/512MB/PC 133 IDE: ATA33/66/100 USB: 4 USB Audio: Onboard AC’97 Audio LAN: Onboard Intel 100/10Mb Ethernet (Optional)
  • Page 77 Board Layout of SynactiX 5EP/5EI V2.0 This layout is just for your reference...

This manual is also suitable for:

Synactix 5ei

Table of Contents