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Copyright
This publication, including all photographs, illustrations and software, is protected
under international copyright laws, with all rights reserved. Neither this manual, nor
any of the material contained herein, may be reproduced without written consent of
the author.
Version 1.0
Disclaimer
The information in this document is subject to change without notice. The manufac-
turer makes no representations or warranties with respect to the contents hereof and
specifically disclaims any implied warranties of merchantability or fitness for any
particular purpose. The manufacturer reserves the right to revise this publication and
to make changes from time to time in the content hereof without obligation of the
manufacturer to notify any person of such revision or changes.
Trademark Recognition
Microsoft, MS-DOS and Windows are registered trademarks of Microsoft Corp.
AMD, Phenom, Athlon, Sempron and Duron are registered trademarks of AMD
Corporation.
Other product names used in this manual are the properties of their respective
owners and are acknowledged.
Federal Communications Commission (FCC)
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installa-
tion. This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful inter-
ference 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 off and on, 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 the receiver.
•
Connect the equipment onto an outlet on a circuit different from that to
which the receiver is connected.
•
Consult the dealer or an experienced radio/TV technician for help.
Shielded interconnect cables and a shielded AC power cable must be employed with
this equipment to ensure compliance with the pertinent RF emission limits govern-
ing this device. Changes or modifications not expressly approved by the system's
manufacturer could void the user's authority to operate the equipment.
Preface
Preface
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Summary of Contents for ECS A785GM-M5
- Page 1 Preface Copyright This publication, including all photographs, illustrations and software, is protected under international copyright laws, with all rights reserved. Neither this manual, nor any of the material contained herein, may be reproduced without written consent of the author. Version 1.0 Disclaimer The information in this document is subject to change without notice.
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Page 2: Declaration Of Conformity
Declaration of Conformity This device complies with part 15 of the FCC rules. Operation is subject to the following conditions: • This device may not cause harmful interference, and • This device must accept any interference received, including interfer- ence that may cause undesired operation. Canadian Department of Communications This class B digital apparatus meets all requirements of the Canadian Interference- causing Equipment Regulations. -
Page 3: Table Of Contents
T T T T T ABLE OF CONTENTS ABLE OF CONTENTS ABLE OF CONTENTS ABLE OF CONTENTS ABLE OF CONTENTS Preface Chapter 1 Introducing the Motherboard Introduction....................1 Features....................2 Motherboard Components..............5 Chapter 2 7 7 7 7 7 Installing the Motherboard Safety Precautions.................7 Choosing a Computer Case..............7 Installing the Motherboard in a Case..........7... - Page 4 Integrated Peripherals..............35 Power Management Setup.............37 PCI/PnP Setup................38 PC Health Status................39 Frequency/Voltage Control............43 Load Default Settings..............44 Supervisor Password..............44 User Password................45 Save & Exit Setup ................45 Exit Without Saving................45 Updating the BIOS.................46 47 47 47 47 47 Chapter 4 Using the Motherboard Software About the Software DVD-ROM/CD-ROM........47 Auto-installing under Windows XP/Vista/7........47 Running Setup................48...
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Page 5: Introducing The Motherboard
Chapter 1 Introducing the Motherboard Introduction Thank you for choosing the A785GM-M5 motherboard. This motherboard is a high performance, enhanced function motherboard that supports socket for Phenom II/Phenom processor (socket AM2+)/Athlon 64 X2 Dual-Core/ Athlon 64/Sempron processors for high-end business or personal desktop mar- kets. -
Page 6: Features
Feature Processor This motherboard uses a socket AM2+/AM2 that carries the following features: • Accommodates AMD Phenom II/Phenom processor (socket AM2+)/ AMD Athlon 64X2 Dual-Core/Athlon 64/Sempron™ processors • Supports HyperTransport (HT) 3.0 interface speeds HyperTransport Technology is a point-to-point link between two devices, it enables integrated circuits to exchange information at much higher speeds than currently available interconnect technologies. - Page 7 Onboard LAN (optional) The onboard LAN controller provides either of the following features: • PCI Express base 1.1 compliant • Integrated PHY for 10/100/1000 Mbps • IEEE 802.3x compliant flow control support • IEEE 802.3ab Auto-Negotiation support • IEEE 802.3ab PHY compliance and compatibility •...
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Page 8: Bios Firmware
BIOS Firmware The motherboard uses AMI BIOS that enables users to configure many system features including the following: • Power management • Wake-up alarms • CPU parameters • CPU and memory timing The firmware can also be used to set parameters for different processor clock speeds. -
Page 9: Motherboard Components
Motherboard Components Introducing the Motherboard... - Page 10 Table of Motherboard Components LABEL CO MPO NENTS Socket for AMD Phenom II/Phenom processor (socket AM2+)/AMD 1. CPU Socket Athlon 64 X2 Dual-Core/Athlon 64/Sempron processors 2. CPU_FAN CPU cooling fan connector 3. DDR2_1~2 240-pin DDR2 SDRAM slots 4. AT X_POWER Standard 24-pin AT X power connector 5.
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Page 11: Installing The Motherboard
Chapter 2 Installing the Motherboard Safety Precautions • Follow these safety precautions when installing the motherboard • Wear a grounding strap attached to a grounded device to avoid dam- age from static electricity • Discharge static electricity by touching the metal case of a safely grounded object before working on the motherboard •... -
Page 12: Checking Jumper Settings
Do not over-tighten the screws as this can stress the motherboard. Checking Jumper Settings This section explains how to set jumpers for correct configuration of the motherboard. Setting Jumpers Use the motherboard jumpers to set system configuration options. Jumpers with more than one pin are numbered. -
Page 13: Checking Jumper Settings
Checking Jumper Settings The following illustration shows the location of the motherboard jumpers. Pin 1 is labeled. Jumper Settings Jumper Type Description Setting (default) 1-2: NORMAL 2-3: CLEAR CLR_CMOS 3-pin CLEAR CMOS Before clearing the CMOS, make sure to CLR_CMOS turn the system off. -
Page 14: Installing Hardware
Installing Hardware Installing the Processor Caution: When installing a CPU heatsink and cooling fan make sure that you DO NOT scratch the motherboard or any of the surface- mount resistors with the clip of the cooling fan. If the clip of the cooling fan scrapes across the motherboard, you may cause serious damage to the motherboard or its components. -
Page 15: Cpu Installation Procedure
CPU Installation Procedure The following illustration shows CPU installation components. Unhook the locking lever of the CPU socket. Pull the locking lever away from the socket and raising it to the upright position. Match the pin1 corner marked as the beveled edge on the CPU with the pin1 corner on the socket. -
Page 16: Installing Memory Modules
Installing Memory Modules This motherboard accommodates two memory modules. It can support two 240-pin DDR2 1066 (AM2+)/800/667/533/400. The total memory capacity is 16 GB*. DDR2 SDRAM memory module table Memory module Memory Bus DDR2 200 MHz DDR2 266 MHz DDR2 333 MHz DDR2 400 MHz... - Page 17 Table A: Unbuffered DIMM Support for Socket AM2+/AM2 CPU DRAM Speed DIMM1 DIMM2 Timing Mode DDR2-400 DDR2-400 DDR2-533 SRx16 SRx16 DDR2-533 SRx16 SRx8 SRx8 SRx16 DDR2-533 SRx8 SRx8 DDR2-533 DRx8 DRx8 DRx8 SRx16 DDR2-533 SRx16 DRx8 DRx8 SRx8 DDR2-533 SRx8 DRx8 DDR2-667 SRx16...
- Page 18 Table B: DDR2 (memory module) QVL (Qualified Vendor List) The following DDR2 1066 (AM2+)/800/667/533/400 memory modules have been tested and qualified for use with this motherboard. Type Size Vendor Module Name Samsung PC2-4200U-4444-10-B1 512 MB DDR2 533 A-data Vitesta 1 GB Micron MT4HTF6464AY-667E1 512 MB...
- Page 19 Type Size Vendor Module Name A-DATA Red A-DATA M2OMI6H3J4720L1C5Z 78.A1GAO.9K4 Apacer 78.A1GC0.9L4 CORSAIR CM2X2048-6400C5 Geil Geil Platinum Edition Hynix HYMP125U64CP8-S6 AB KingMax KLDE88F-B8KU5 NHES KVR800D2N5/2G Kingston 2 GB KVR800D2N6/2G-SP DDR2 800 Micron MT16HTF25664AY-800E1 Nanya NT2GT64U8HD0BY-AD AL8E8F73C-8E1 M378T5663QZ3-CF7 Samsung M378T5663EH3-CF7 Silicon SP002GBLRU800S01 Power Unifosa...
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Page 20: Expansion Slots
Expansion Slots Installing Add-on Cards The slots on this motherboard are designed to hold expansion cards and connect them to the system bus. Expansion slots are a means of adding or enhancing the motherboard’s features and capabilities. With these efficient facilities, you can in- crease the motherboard’s capabilities by adding hardware that performs tasks that are not part of the basic system. - Page 21 Follow these instructions to install an add-on card: Remove a blanking plate from the system case corresponding to the slot you are going to use. Install the edge connector of the add-on card into the expansion slot. Ensure that the edge connector is correctly seated in the slot. Secure the metal bracket of the card to the system case with a screw.
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Page 22: Connecting Optional Devices
Connecting Optional Devices Refer to the following for information on connecting the motherboard’s optional devices: F_AUDIO: Front Panel Audio header This header allows the user to install auxiliary front-oriented microphone and line- out ports for easier access. Signal Name Signal Name Signal Name Function PORT 1L... - Page 23 SATA1~6: Serial ATA connectors These connectors are used to support the new Serial ATA devices for the highest data transfer rates (3.0 Gb/s), simpler disk drive cabling and easier PC assembly. It elimi- nates limitations of the current Parallel ATA interface. But maintains register com- patibility and software compatibility with Parallel ATA.
- Page 24 LPT: Onboard parallel port header This is a header that can be used to connect to the printer, scanner or other devices. Signal Name Signal Name Function Signal Name Function STB# Strobe Data 0 Data 1 Data 2 Data 3 Data 4 Data 6 Data 5...
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Page 25: Installing A Hard Disk Drive/Cd-Rom/Sata Hard Drive
Installing a Hard Disk Drive/CD-ROM/SATA Hard Drive This section describes how to install IDE devices such as a hard disk drive and a CD- ROM drive. About IDE Devices Your motherboard has one IDE interface. An IDE ribbon cable supporting two IDE devices is bundled with the motherboard. - Page 26 Refer to the illustration below for proper installation: Attach either cable end to the connector on the motherboard. Attach the other cable end to the SATA hard drive. Attach the SATA power cable to the SATA hard drive and connect the other end to the power supply.
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Page 27: Connecting I/O Devices
Connecting I/O Devices The backplane of the motherboard has the following I/O ports: PS2 Mouse Use the upper PS/2 port to connect a PS/2 pointing device. PS2 Keyboard Use the lower PS/2 port to connect a PS/2 keyboard. Serial Port Use the COM port to connect serial devices such as mouse (COM) or fax/modems. -
Page 28: Connecting Case Components
Connecting Case Components After you have installed the motherboard into a case, you can begin connecting the motherboard components. Refer to the following: Connect the CPU cooling fan cable to CPU_FAN. Connect the standard power supply connector to ATX_POWER. Connect the case speaker cable to SPK. Connect the case switches and indicator LEDs to the F_PANEL. -
Page 29: Atx 12V Power Connector
CPU_FAN: FAN Power Connector Signal Name Function System Ground Power +12V +12V Sense Sensor CPU FAN control Users please note that the fan connector supports the CPU cooling fan of 1.1A~2.2A (26.4W max.) at +12V. SYS_FAN: FAN Power Connector Signal Name Function System Ground Power +12V... -
Page 30: Front Panel Header
SPK: Internal speaker Signal Name Signal Front Panel Header The front panel header (F_PANEL) provides a standard set of switch and LED headers commonly found on ATX or Micro ATX cases. Refer to the table below for informa- tion: Signal Function Signal Function... -
Page 31: Using Bios
Chapter 3 Using BIOS About the Setup Utility The computer uses the latest “American Megatrends Inc. ” BIOS with support for Windows Plug and Play. The CMOS chip on the motherboard contains the ROM setup instructions for configuring the motherboard BIOS. The BIOS (Basic Input and Output System) Setup Utility displays the system’s configuration status and provides you with options to set system parameters. -
Page 32: Resetting The Default Cmos Values
Press the delete key to access the BIOS Setup Utility. CMOS Setup Utility -- Copyright (C) 1985-2005, American Megatrends, Inc. Standard CMOS Setup Frequency/Voltage Control Advanced Setup Load Default Settings Advanced Chipset Setup Supervisor Password Integrated Peripherals User Password Power Management Setup Save &... -
Page 33: Using Bios
Using BIOS When you start the Setup Utility, the main menu appears. The main menu of the Setup Utility displays a list of the options that are available. A highlight indicates which option is currently selected. Use the cursor arrow keys to move the highlight to other options. -
Page 34: Standard Cmos Setup
For the purpose of better product maintenance, the manufacture reserves the right to change the BIOS items presented in this manual. The BIOS setup screens shown in this chapter are for reference only and may differ from the actual BIOS. Please visit the manufacture’s website for updated manual. - Page 35 LBA/Large Mode (Auto) Use this item to set the LAB/Large mode to enhance hard disk performance by optimizing the area the hard disk is visited each time. Block (Multi-Sector Transfer (Auto) If the feature is enabled, it will enhance hard disk performance by reading or writing more data during each transfer.
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Page 36: Advanced Setup
2nd Boot Device CD/DVD 3rd Boot Device Removable Dev. Hard Disk Drive Press Enter Boot Other Device ECS eJIFFY Function Disabled < > : Move Enter : Select +/-/: Value F10: Save ESC: Exit F1: General Help... - Page 37 ECS eJIFFY Function (Disabled) Use this item to enable or disable the ECS eJIFFY Function. eJIFFY is ECS unique software program for the quick access to the internet without entering O.S. Please refer to Chapter 6 to know more about eJIFFY.
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Page 38: Advanced Chipset Setup
Advanced Chipset Setup This page sets up more advanced information about your system. Handle this page with caution. Any changes can affect the operation of your computer. CMOS Setup Utility - Copyright (C) 1985-2005, American Megatrends, Inc. Advanced Chipset Setup Help Item DRAM Frequency Auto... -
Page 39: Integrated Peripherals
Integrated Peripherals This page sets up some parameters for peripheral devices connected to the system. CMOS Setup Utility - Copyright (C) 1985-2005, American Megatrends, Inc. Integrated Peripherals Onboard IDE Controller Enabled Help Item Onboard SATA Mode Enabled SATA Configuration DISABLED: disables the Onboard AUDIO Function Enabled integrated IDE... - Page 40 Parallel Port Mode (Normal) Use this item to select the parallel port mode. You can select Normal (Standard Parallel Port), ECP (Extended Capabilities Port), EPP (Enhanced Parallel Port), or BPP (Bi-Directional Parallel Port). Parallel Port IRQ (IRQ7) Use this item to assign IRQ to the parallel port. USB Functions (Enabled) Use this item to enable or disable the USB function.
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Page 41: Power Management Setup
Power Management Setup This page sets up some parameters for system power management operation. CMOS Setup Utility - Copyright (C) 1985-2005, American Megatrends, Inc. Power Management Setup Help Item ACPI Suspend Type PWRON After PWR-Fail Power Off Select the ACPI Resume By RING Disabled state used for... -
Page 42: Pci/Pnp Setup
Resume on RTC Alarm (Disabled) The system can be turned off with a software command. If you enable this item, the system can automatically resume at a fixed time based on the system’s RTC (realtime clock). Use the items below this one to set the date and time of the wake-up alarm. You must use an ATX power supply in order to use this feature. -
Page 43: Pc Health Status
PC Health Status On motherboards support hardware monitoring, this item lets you monitor the parameters for critical voltages, temperatures and fan speeds. CMOS Setup Utility - Copyright (C) 1985-2005, American Megatrends, Inc. PC Health Status Help Item -=- System Hardware Monitor -=- Smart Fan Function Press Enter Shutdown Temperature (CPU) - Page 44 SMART Fan Mode (Normal) This item allows you to select the fan mode (Normal, Quiet, Silent, or Manual) for a better operation environment. If you choose Normal mode, the fan speed will be auto adjusted depending on the CPU temperature. If you choose Quite mode, the fan speed will be auto minimized for quiet environment.
- Page 45 CMOS Setup Utility - Copyright (C) 1985-2005, American Megatrends, Inc. Smart Fan Function Help Item SMART Fan Control Enabled Smart Fan Mode Silent SMART Fan start PWM value Normal: auto ajusts SMART Fan start TEMP.(°C) depending on the CPU DeltaT1 temperature.
- Page 46 SMART Fan Slope PWM value (8 PWM value/°C) This item is used to set the Slope Select PWM of the smart fan. CPU FAN Full Limit Temp (65°C) This item is used to set the limit temperature of the smart fan. Press <Esc>...
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Page 47: Frequency/Voltage Control
Frequency/Voltage Control This page enables you to set the clock speed and system bus for your system. The clock speed and system bus are determined by the kind of processor you have installed in your system. CMOS Setup Utility - Copyright (C) 1985-2005, American Megatrends, Inc. Frequency/Voltage Control Help Item Auto Detect DIMM/PCI CIK... -
Page 48: Load Default Settings
Load Default Settings This option opens a dialog box to ask if you are sure to install optimized defaults or not. You select [OK], and then press <Enter>, the Setup Utility loads all default values; or select [Cancel], and then press <Enter>, the Setup Utility does not load default values. -
Page 49: User Password
User Password This page helps you install or change a password. CMOS Setup Utility - Copyright (C) 1985-2005, American Megatrends, Inc. User Password Help Item User Password : Not Installed : Move Enter : Select +/-/: Value F10: Save ESC: Exit F1:General Help F9: Optimized Defaults User Password (Not Installed) -
Page 50: Updating The Bios
Updating the BIOS You can download and install updated BIOS for this motherboard from the manufacturer’s Web site. New BIOS provides support for new peripherals, improve- ments in performance, or fixes for known bugs. Install new BIOS as follows: If your motherboard has a BIOS protection jumper, change the setting to allow BIOS flashing. -
Page 51: Using The Motherboard Software
Chapter 4 Using the Motherboard Software About the Software DVD-ROM/CD-ROM The support software DVD-ROM/CD-ROM that is included in the motherboard package contains all the drivers and utility programs needed to properly run the bundled products. Below you can find a brief description of each software program, and the location for your motherboard version. -
Page 52: Running Setup
Drivers Tab Setup Click the Setup button to run the software installation program. Select from the menu which software you want to install. Browse CD The Browse CD button is the standard Windows command that allows you to open Windows Explorer and show the contents of the support disk. - Page 53 Click Next. The following screen appears: Check the box next to the items you want to install. The default options are recom- mended. Click Next run the Installation Wizard. An item installation screen appears: Follow the instructions on the screen to install the items. Drivers and software are automatically installed in sequence.
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Page 54: Manual Installation
Windows Vista/7 will appear below UAC (User Account Control) message after the system restart. You must select “Allow” to install the next driver. Continue this process to complete the drivers installation. Manual Installation Insert the disk in the DVD-ROM/CD-ROM drive and locate the PATH.DOC file in the root directory. -
Page 55: Hybrid Graphics ® Technology
Chapter 5 Hybrid Graphics Technology Support ® ® Hybrid Graphics Technology The Hybrid Graphics ® technology provides significant display performance boost to AMD-based systems by inserting the external PCI Express graphics card and enabling both the discrete GPU and the AMD785G graphics core to render simultaneously in Hybrid CrossFire mode. - Page 56 Note: SurroundView provides the power and convenience of multiadapter, multimonitor support for computers that use a PCI-E based graphics card in conjunction with ATI integrated graphic processors. And there are two options: Disabled and PCI-E. If SurroundView set to Disabled, and Init Display First set to OnBoard, SurroundView will be Enabled by Catalyst Control Center based on cancel the Enable CrossFire...
- Page 57 4. Enter Catalyst Control Center, you can see the option of CrossFire , click it and ® select Enable CrossFire , then Hybrid Graphics starts. ® To disable Hybrid Graphics , please make sure to cancel Enable CrossFire in Catalyst Control Center firstly. Hybrid Graphics Technology Support ®...
- Page 58 Memo Hybrid Graphics Technology Support ®...
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Page 59: Setting Up Ejiffy
Chapter 6 Setting Up eJIFFY Introduction eJIFFY is a fast boot program under Linux. Instead of waiting Windows O.S to start execution, eJIFFY is ready to provide users the instant enjoyment on web browsing, photo review and online chat just within several seconds after boot up. Note: According to your motherboard uses DVD or CD, the installation may different,please refer the following installation page for more detailed information. -
Page 60: Installation And Bios Setup
DVD Activation Finish the DVD utility setup, and then set the BIOS to complete eJIFFY activation. 1. Insert ECS software utility DVD and enter below “Utilities” screen. Click eJIFFY feature item to install. 2. Follow the onscreen instructions to finish eJIFFY setup. Restart your computer after you finish. - Page 61 3. Press <DEL> or click the BIOS Setup button on the post screen to enter the BIOS setup page after boot up. 4. And then enter the Advanced Setup page to enable the item ECS eJIFFY Func- tion. Press F10 to save the configuration and exit. Restart your computer.
- Page 62 CD Manually Setup You need to finish the CD installation first before setting the BIOS. 1. Insert the eJIFFY CD in the CD-ROM drive. And follow the onscreen instructions to finish the OS installation. 2. Enter My Computer to find the eJIFFY setup program. 3.
- Page 63 4. Press <DEL> or click the BIOS Setup button on the post screen to enter the BIOS setup page after boot up. 5. And then enter the Advanced Setup page to enable the item ECS eJIFFY Func- tion. Press F10 to save the configuration and exit. Restart your computer.
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Page 64: Entering Ejiffy
Entering eJIFFY The post screen appears within several seconds after boot up and it has three buttons on it, Operating system, eJIFFY and BIOS Setup. Click to enter the normal OS you have installed such as Windows. Click to enter eJIFFY OS. Click to set the BIOS. -
Page 65: Features Icons
Feature Icons The following illustration shows the main feature icons that eJIFFY provides on the menu. eWeb: Firefox for web browsing/webmail and watching flash video. ePix: Photo viewing. ePal: On-line chat tool to use the most popular IMs in the world. (MSN, ICQ , AIM, etc.) Shows ePal on-line connection status. -
Page 66: Usage Faq
Usage FAQ eWeb: Firefox for web browsing/webmail and watching flash video. Q1: How to download files to hard disk through eWeb? Click on the file link directly. Then select “Save File” in the pop-up window. 1. Before downloading files, please “mount” the storage devices to make Note: sure the device is connected with eJIFFY interface. - Page 67 Q2: How to switch to different languages settings? Step1. Step2. Setting Up eJIFFY...
- Page 68 Q3: How to save image file through eWeb? 1. Select the image you want to save and press the right key of your mouse to show the menu, then click the option “ Save Image As” from the menu. 2. Then the “Save Image” window appears. You may rename the image file in the “Name”...
- Page 69 ePix: Photo viewing. Q1: How to find image files saved in hard disk through ePix? Enter the ePix window, then click the icon “Folder” located in the upper left-hand corner, then follow the path for the files you have saved to view the image files. Setting Up eJIFFY...
- Page 70 Q2: How to use the fit function under slide show? 1. Click “Edit” and select “Preferences” option from the menu. 2. Click “Viewer” and choose “Keep previous zoom” in “After loading an image”. Close the window and you can use the fit function under slide show now. Note: ePix supports to view image files only.
- Page 71 Mount/Unmount Disk. Q1: What does it mean for “Mount Disk”? “Mount” means to connect the storage devices to eJIFFY interface. After plugging the external device to the computer such as USB drives, a new disk icon will appear as the following picture shows. Please click the “mount” prompt on the icon.
- Page 72 Memo Setting Up eJIFFY...
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Page 73: Troulbe Shooting
Chapter 7 Trouble Shooting Start up problems during assembly After assembling the PC for the first time you may experience some start up problems. Before calling for technical support or returning for warranty, this chapter may help to address some of the common questions using some basic troubleshooting tips. -
Page 74: Start Up Problems After Prolong Use
c) The PC suddenly shuts down while booting up. 1. The CPU may experience overheating so it will shutdown to protect itself. Ensure the CPU fan is working properly. 2. From the BIOS setting, try to disable the Smartfan function to let the fan run at default speed. - Page 76 Memo Trouble Shooting...
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