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Viglen VIG615M Manual Download Page 29

V1.0

VIG615M Motherboard Manual

28

Serial Port Connector: JCOM1

This connector is a 16550A high speed communication port that sends/receives 16
bytes FIFOs. You can attach a serial device.

Figure 17:

Serial Port Connector

Table 12:

Serial Port connector (JCOM1)

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Summary of Contents for VIG615M

Page 1: ...C O M P U T E R S N E T W O R K S S O L U T I O N S VIG615M Motherboard Manual ...

Page 2: ...er system maintains compliance throughout its functional life it is essential you follow these guidelines Install the system according to Viglen s instructions If you open up your Viglen Keep internal cabling in place as supplied Ensure the lid is tightly secured afterwards Do not remove drive bay shields unless installing a CE marked peripheral in its place The clips or bumps around the lips of t...

Page 3: ...opies retained by the purchaser for backup Copyright 2009 Viglen Limited All Rights Reserved VIG615M Manual Version 1 0 Printed in the United Kingdom Liability No warranty or representation either expressed or implied is made with respect to this documentation its quality performance merchantability or fitness for a particular purpose As a result the documentation is licensed as is and you the lic...

Page 4: ... Memory Modules 32 Expansion Slots PCI PCI Express 34 Replacing the Clock CMOS RAM Battery 35 Chapter 3 Solving Problems 36 Resetting the System 36 Troubleshooting Procedures 37 Problems Operating Add in Boards 38 Problems Suggestions 39 Chapter 4 System BIOS 41 What is the BIOS 41 The Power On Sequence 41 BIOS Upgrades 42 Using AWDFLASH to Update the BIOS 42 Configuring the Motherboard using BIOS...

Page 5: ...ional Options 62 Chapter 5 Technical Information 63 Enhanced IDE 63 Operating Systems and Hard Drives 64 Power Supply Connector 65 Other Useful Connectors 65 Other Information 69 Reliability 69 Temperature 69 Chapter 6 Glossary 70 Notes 72 Chapter 7 Suggestions 73 ...

Page 6: ...oth multimedia and communications on your PC The combination of the Intel processor MMX technology and Viglen expertise make this a formidable computer This manual contains technical information about the Viglen Vig615M motherboard and other hardware components inside your computer If you are new to computers we recommend that you read the user guide first If you are an experienced computer user t...

Page 7: ... Socket 775 connector Supports 4 pin CPU fan pin header with fan speed control S u p p o r t s I n t e l H y p e r T h r e a d i n g T e c h n o l o g y Main memory Two 240 pin DDR2 DIMM sockets Supports memory speeds 667 800 MHz Support for up to 4GB of DDR2 DIMM memory Chipset Intel G31 Supports 800 1066 1333 MHz Front Side Bus FSB Advanced System Power Management features Integrated Super I O C...

Page 8: ...dio jacks Internal Connectors 2x USB 2 0 pin headers 1x CD in pin header 1x SPDIF out pin header 1x Front panel audio pin header 1x serial port pin header 1x Chassis intrusion switch pin header 1x SPI Debugging connector Expansion Capabilities One PCI Express x16 slot Two PCI bus add in card connectors Supports 3 3V 5V PCI bus interfae Instantly Available PC Suspend to RAM support Wake on PS 2 key...

Page 9: ...r gaming and multimedia experience with integrated graphic engine Intel Graphics Media Accelerator 3100 It supports 1066 800 MHz front side bus FSB and delivers breakthrough advances in 3D and 2D graphics and video capabilities This integrated chipset contains one 16 lane PCI Express port intended for an external PCI Express graphics card and provides the interface for the processor in the 775 lan...

Page 10: ...ces Guaranteed bandwidth and low latencies appropriate for telephony audio and other applications Error handling and fault recovery mechanisms built into the protocol NOTE Computer systems that have an unshielded cable attached to a USB port may not meet FCC Class B requirements even if no device or a low speed sub channel USB device is attached to the cable Use shielded cable that meets the requi...

Page 11: ...tury calendar with alarm features and century rollover The real time clock supports 256 bytes of battery backed CMOS SRAM in two banks that are reserved for BIOS use The time date and CMOS values can be specified in the Setup program The CMOS values can be returned to their defaults by using the Setup program An external coin cell CR 2032 battery powers the real time clock and CMOS memory When the...

Page 12: ... receives 16 bytes FIFOs You can attach a serial mouse or other serial devices directly to the connector Parallel Port The connector for the multimode bidirectional parallel port is a 25 pin D Sub connector located on the back panel In the Setup program the parallel port can be configured for the following Compatible standard mode Bidirectional PS 2 compatible Extended Parallel Port EPP Enhanced C...

Page 13: ...BIOS The system BIOS from Phoenix Technology provides ISA and PCI compatibility The BIOS is contained in a flash memory device on the system board The BIOS provides the power on self test POST the system Set up program a PCI and IDE auto configuration utility and BIOS recovery code PCI Auto Configuration The PCI auto configuration utility works in conjunction with the Set up program to support usi...

Page 14: ...V1 0 VIG615M Motherboard Manual 13 System Board Components Figure 1 Motherboard Layout Components ...

Page 15: ...em Board Components A System Fan1 This is used to keep the Motherboard components and other components cool B ATX 12V Power Connector This 12V power connector is used to provide power to the CPU C LGA775 pin CPU socket CPU sits in the LGA775 pin socket D CPU Fan Header Fan header dedicated purely for the Heatsink to cool the CPU E Front System Fan header This is used to keep the Motherboard compon...

Page 16: ... chassis Q Front Panel Audio Connector This header supports HD Audio which allows the Motherboard to support front panel Audio R CD In Connector This connector is provided for external audio input S PCI Slot 32bit The PCI slots support LAN cards USB cards and other add on cards that comply with PCI specifications T PCI Express x1 and x16 Slot The PCI Express x1 supports up to 250 MB s transfer rat...

Page 17: ...use connectors as well as one serial port one parallel port four USB ports one LAN Port and the audio connectors Figure 2 Back Panel Connectors NOTE Power to the computer should be turned off before a keyboard or mouse is connected or disconnected The I O shield provides external access to the following 1 1x PS 2 Keyboard This port is for a PS 2 Keyboard 2 1x PS 2 Mouse This port is for a PS 2 Mou...

Page 18: ...io jacks for different audio sound effects Line In Blue Line In is used for external CD player tape player or other audio devices Line Out Green Line Out is a connector for speakers or headphones Mic Pink Mic is a connector for microphones This Mic pink jack connects a microphone In 6 channel mode the function of this jack becomes Rear Speaker Out NOTE The functions of the Line Out Line In and Mic...

Page 19: ...ulatory compliance required for using and modifying electronic equipment Do not operate the system with the cover removed Always replace the cover before turning on the system As the colours of the wires in the mains lead of this computer may not correspond with the coloured markings identifying the terminals in your plug precede as follows The wire which is coloured green and yellow must be conne...

Page 20: ...cal electrical shop While you are wearing the strap and it is earthed static charge will be harmlessly bled to ground 2 Do not remove the component from its anti static protective packaging until you are about to install it 3 Hold boards by the edges try not to touch components interface strips etc NOTE We recommend that you return your computer to the service department for upgrading Any work car...

Page 21: ... the CPU The only jumpers present on the motherboard are for clearing all the CMOS settings In the unlikely event of the CMOS becoming corrupted then jumper JP1 can be set to clear the contents of the CMOS and for write protecting the BIOS CAUTION Never remove jumpers using large pliers as this can damage the pins The best way to remove a jumper is to use a small pair of tweezers or fine needle no...

Page 22: ...V1 0 VIG615M Motherboard Manual 21 System Board Jumper Settings Figure 4 System Board Jumper Settings ...

Page 23: ... JP1 default position Removing the jumper will cause system boot failures There is no jumper setting for configuring the processor speed or bus frequency Motherboard Connectors There are connectors on the motherboard for FAN IDE Power supply CD audio Floppy IDE Front Panel Connectors The location and or details of these connections are shown below Front Panel Connectors The following are all conne...

Page 24: ...This attaches to the power L E D on the front panel to display if the computer is active or not Power On Off When these pins are shorted it turns the computer on and off Power Supply ATX 24 Pin Power Connector ATX1 This connector allows you to connect an ATX 24 pin power supply To connect the ATX 24 pin power supply make sure the plug of the power supply is inserted in the proper orientation and t...

Page 25: ...U Figure 7 ATX 12V Power Connector Pin Definition Floppy Disk Drive Connector FDD1 This connector supports 360KB 720KB 1 2MB 1 44MB or 2 88MB floppy disk drive Figure 8 Floppy Disk Drive Connector IDE Connector IDE1 This connector supports IDE hard disk drives optical disk drives and other IDE devices Figure 9 IDE Connector ...

Page 26: ...ss may occur during transmission Fan Power Connectors CPUFAN1 SYSFAN1 2 The fan power connectors support system cooling fan with 12V When connecting the wire to the connectors always note that the red wire is the positive and should be connected to the 12V the black wire is Ground and should be connected to GND If the motherboard has a System Hardware Monitor chipset on board you must use a specia...

Page 27: ...o clear the warning you must enter the BIOS utility and clear the record Figure 12 Chassis Intrusion Connector S PDIF Out Connector JSPD1 This connector is for an additional Sony Philips Digital Interface S PDIF port s Connect the S PDIF Out module cable to this connector and then install the module to a slot opening at the back of the system chassis Figure 13 S PDIF Out Connector CD In Connector ...

Page 28: ...Definition JAUD1 Front USB Connector JUSB1 2 These connectors are for USB2 0 ports Connect the USB module cable to any of these connectors and then install the module to a slot opening at the back of the system chassis These USB connectors comply with USB 2 0 specification that supports up to 480 Mbps connection speed Figure 16 Front USB Connector Table 11 Front USB connector JUSB1 2 Note The pins...

Page 29: ...anual 28 Serial Port Connector JCOM1 This connector is a 16550A high speed communication port that sends receives 16 bytes FIFOs You can attach a serial device Figure 17 Serial Port Connector Table 12 Serial Port connector JCOM1 ...

Page 30: ...sor To do so please refer to the follow the instructions below 1 Read the warnings at the start of this chapter and ensure a static free environment 2 Remove the lid from the computer by removing the four screws at the rear of the case 3 Locate the CPU module 4 Locate the heat sink clips and remove heat sink and unplug FAN cable 5 Lift arm on Socket to release the CPU 6 Lift the CPU Vertically upw...

Page 31: ...ver hinge side as the arrow shows Figure 19 Remove protective cap 2 The pin sockets are revealed now open the load lever Figure 20 Open load lever 3 Lift the load lever up and open the load plate After confirming the CPU direction for correct mating put down the CPU in the socket housing frame Be sure to grasp on the edge of the CPU base Note that the alignment keys are matched Figure 21 Place CPU...

Page 32: ...late and then secure the lever with the hook under retention tab Align the holes on the motherboard with the heatsink Push down the cooler until its four clips get wedged into the holes of the motherboard Figure 23 Install heatsink 6 Press the four hooks down to fasten the cooler Then rotate the locking switch refer to the correct direction marked on it to lock the hooks Turn over the motherboard ...

Page 33: ...e sure the clips at either end of the socket are pushed away from the socket 5 Position the DIMM above the socket Align the two small notches in the bottom edge of the DIMM with the keys in the socket Insert the bottom edge of the DIMM into the socket 6 When the DIMM is seated push down on the top edge of the DIMM until the retaining clips at the ends of the socket snap into place Make sure the cl...

Page 34: ...V1 0 VIG615M Motherboard Manual 33 Figure 25 Removing Memory Modules ...

Page 35: ...nterrupt 4 12 Communication Port COM1 5 13 IRQ Holder for PCI steering 6 14 Floppy Disk Controller 7 15 Printer Port LPT1 8 3 System CMOS Real Time Clock 9 4 IRQ Holder for PCI steering 10 5 Advanced AC 97 CODEC 11 6 Standard PCI Graphics Adapter VGA 12 7 PS 2 Compatible Mouse Port 13 8 Numeric Data Processor 14 9 Primary IDE Channel 15 10 Secondary IDE Channel These IRQs are usually available for...

Page 36: ...e heat or any naked flame Keep all batteries away from children CAUTION Danger of explosion if the battery is incorrectly replaced Replace only with the same or equivalent type recommended by Viglen Discard used batteries according to manufacturer s instructions The battery is listed as board component S on the diagram on Figure 1 To replace the battery carry out the following 1 Observe the precau...

Page 37: ...o look for support information on our web site http www viglen co uk Device drivers and various useful utilities can be downloaded from our ftp site ftp ftp viglen co uk Resetting the System Before checking your system for hardware problems it is always a good idea to try resetting your computer and see if a re boot can solve the problem Most software related problems can be solved simply by re bo...

Page 38: ...operating system normally loads from a diskette insert the operating system diskette into the drive 5 Turn on the system If the power indicator does not light but the system seems to be operating normally the indicator is probably defective Monitor the power on self test POST execution Each time you turn on the system the POST checks the system board memory keyboard and certain peripheral devices ...

Page 39: ...tructions Check the documentation that came with the board Are all cables installed properly The following items are suggestions for troubleshooting problems related to PCI ISA legacy non Plug and Play add in boards If the PCI ISA board uses an interrupt run Set up and set the interrupt that is being used by the PCI ISA board to Used by PCI ISA Card Please refer to the BIOS manual for details of h...

Page 40: ...re using If other software runs correctly on the system contact the vendor of the software that fails If you check all of the above with no success try clearing CMOS RAM and reconfiguring the system Make sure you have your list of system settings available to re enter because clearing CMOS RAM sets the options to their default values Characters on screen are distorted or incorrect Make sure the br...

Page 41: ...aders Check that the drive is properly configured and enabled in Setup Check the drive manufacturer s manual for proper configuration for remote hard disk drive activity Power on light does not go on If the system is operating normally check the connector between the system board and the front panel If OK the light may be defective Prompt doesn t appear after system boots It s probably switched of...

Page 42: ...quence When the computer is first switched on certain instructions in the BIOS are executed to test various parts of the machine This is known as the POST Power On Self Test routine When you switch the computer on or when you press the Reset button or press Ctrl Alt Delete keys which has the same effect you can see on the monitor that it counts through the memory testing it The floppy disk drives ...

Page 43: ...tes the flash BIOS from a file on a disk Updates the language section of the BIOS Makes sure that the upgrade BIOS matches the target system to prevent accidentally installing a BIOS for a different type of system BIOS upgrades and the AFUD4234 EXE utility may be available online at www viglen co uk or by request NOTE Please review the instructions distributed with the upgrade utility before attem...

Page 44: ...s made up of the BIOS file name version build and time of flash E g A7528IMS V1 0 011708 where 1st digit refers to BIOS maker as A AMI W AWARD and P PHOENIX 2nd 5th digit refers to the model number 6th digit refers to the chipset as I Intel N nVidia and V VIA 7th 8th digit refers to the customer as MS all standard customers V1 0 refers to the BIOS version 011708 refers to the date this BIOS was re...

Page 45: ... and modifying electronic equipment Disconnect the computer from its power source and from any telecommunications links networks or modems before performing any of the procedures described in this chapter Failure to disconnect power telecommunications links networks or modems before you open the computer or perform any procedures can result in personal injury or equipment damage Some circuitry on ...

Page 46: ... the CMOS RAM of the firmware hub The firmware hub on the motherboard stores the Setup utility When you start up the computer the system provides you with the opportunity to run this program Press Delete during the Power On Self Test POST to enter the Setup utility Otherwise POST continues with its test routines If you wish to enter Setup after POST restart the system by pressing Ctrl Alt Delete o...

Page 47: ...em You cannot select an item that is not user configurable A configurable field is enclosed in brackets and is highlighted when selected To change the value of a field select it then press Enter to display a list of options Pop Up Window Select a menu item then press Enter to display a pop up window with the configuration options for that item Scroll Bar A scroll bar appears on the right side of a...

Page 48: ...pherals For changing PCI AGP and USB settings Power Management Setup For accessing advanced power management APM configuration PnP PCI Configurations For changing IRQ settings PC Health Status Displays information regarding CPU temp and fan speed Frequency Voltage Control For changing the CPU frequency and displaying current frequency information Load Optimized Defaults loads BOIS default values B...

Page 49: ...nges made that have been made whilst using the BIOS CMOS setup utility and exit out of the BIOS CMOS setup utility Exit Without Saving this option will not save any changes made that have been made whilst using the BIOS CMOS setup utility and exit out of the BIOS CMOS setup utility ...

Page 50: ...CMOS features System Date This item allows you to set the system date mm dd yyyy System Time This item allows you to set the system time hh mm ss IDE Primary Secondary Master Slave This shows what devices are running of which IDE channel Floppy Drive A 1 44M 3 5 in Sets the type of floppy drive installed Configuration options Disabled 360K 5 25 in 1 2M 5 25 in 720K 3 5 in 1 44M 3 5 in 2 88M 3 5 in...

Page 51: ... DMA Mode Allows the hard drive direct access to the memory Hard Drive S M A R T If the hard drive used supports S M A R T Self Monitoring Analysis and Reporting Technology then this allows all the functions to be used Size This indicates the capacity of the hard drive System Information Press Enter to enter the sub menu and the following screen appears Figure 33 System Information Sub Menu ...

Page 52: ...enu Full Screen LOGO Display This item enables you to show the company logo on the bootup screen Settings are Enabled shows a still image logo on the full screen at boot Disabled shows the POST messages at boot Quick Booting This speeds up the boot time of the system by not running a full memory test If disabled the boot time varies according to the amount of memory installed Boot Up Num Lock LED ...

Page 53: ...ure Press Enter to enter the sub menu Execute Disable Bit Intel s Execute Disable Bit functionality can prevent certain classes of malicious buffer overflow attacks when combined with a supporting operating system This functionality allows the processor to classify areas in memory by where application code can execute and where it cannot When a malicious worm attempts to insert code in the buffer ...

Page 54: ...om other device If the system fails to boot from the 1st 2nd boot device Trusted Computing Press Enter to enter the sub menu TCG TPM SUPPORT This setting allows you to enable disable the TCG TPM Execute TPM Command This item allows you to enable or disable the TPM security chip Clearing the TPM This item allows you to clear the user information saved in the TPM security chip When you press Enter a...

Page 55: ...u need to use a USB interfaced device in the operating system Onboard LAN Controller This item is used to enable disable the onboard LAN controller LAN Option ROM This item is used to decide whether to invoke the Boot ROM of the LAN controller Onboard IEEE1394 Controller This item allows you to enable disable the onboard IEEE1394 controller Audio Controller This setting is used to enable disable t...

Page 56: ...isable the SATA controller RAID Mode This item is used to enable disable the RAID function for SATA devices I O Device Configuration Press Enter to enter the sub menu COM Port 1 2 Select an address and corresponding interrupt for the first serial port Parallel Port There is a built in parallel port on the on board Super I O chipset that provides Standard ECP and EPP features It has the following o...

Page 57: ...p mode is a low power state In this state no system context is lost CPU or chipset and hardware maintains all system contexts S3 The S3 sleep mode is a lower power state where the in formation of system configuration and open applications files is saved to main memory that remains powered while most other hardware components turn off to save energy The information stored in memory will be used to ...

Page 58: ...e From S3 By PS 2 Keyboard This setting determines whether the system will be awakened from what power saving modes when input signal of the PS 2 keyboard is detected Resume From S3 By PS 2 Mouse This setting determines whether the system will be awakened from what power saving modes when input signal of the PS 2 mouse is detected Resume by PCI Device PME When set to Enabled the feature allows you...

Page 59: ...ides the Smart Fan function which can control the CPU fan speed automatically depending on the current temperature to keep it with in a specific range You can select a fan target value here If the current CPU fan temperature reaches to the target value the smart fan function will be activated It provides several sections to speed up for cooling down automatically PC Health Status CPU System Temper...

Page 60: ...CPU FSB Frequency This item allows you to set the CPU FSB frequency in MHz Adjusted CPU Frequency It shows the adjusted CPU frequency FSB x Ratio Read only Advance DRAM Configuration Press Enter to enter the sub menu DRAM Timing by Mode Setting to Enabled enables DRAM CAS Latency automatically to be determined by BIOS based on the configurations on the SPD Serial Presence Detect EEPROM on the DRAM...

Page 61: ...AM Timing Mode sets to Manual the field is adjustable The row cycle time determines the minimum number of clock cycles a memory row takes to complete a full cycle from row activation up to the precharging of the active row Advance DRAM Configuration tWR When the DRAM Timing Mode sets to Manual the field is adjustable It specifies the amount of delay in clock cycles that must elapse after the compl...

Page 62: ... to select the PCIE frequency in MHz Auto Disable DIMM PCI Frequency When set to Enabled the system will remove turn off clocks from empty DIMM and PCI slots to minimize the electromagnetic interference EMI Spread Spectrum When the motherboard s clock generator pulses the extreme values spikes of the pulses create EMI Electromagnetic Interference The Spread Spectrum function reduces the EMI genera...

Page 63: ...imal performance BIOS Settings Password Allows a password to be set to restrict access to the BIOS configuration Save Exit Setup Allows the settings that have been changed to be saved and exits the BIOS setup menu This also reboots the machine Exit Without Saving Exits the BIOS setup menu without saving any setting that has been changed This also reboots the machine ...

Page 64: ...o the IDE interface are Support hard drives of capacity greater than 528MB This is achieved through BIOS changes Improved data transfer rates Transfer rates of 1 3MB sec were the best to be expected from older IDE drives With local bus technology this increased to about 6MB sec Now with multimedia applications requiring vast amounts of information even faster transfers rates were needed Now drives...

Page 65: ...t operating systems have different abilities regarding IDE translation mode UNIX operating systems as currently implemented do not support either LBA or ECHS and must utilise the standard CHS method UNIX can support drives larger than 528MB but does so in its own way OS 2 2 1 and OS 2 Warp can support LBA ECHS or standard CHS methods Note that LBA support may require a switch setting on an OS 2 dr...

Page 66: ... computer returns to the power state it was in before power was interrupted on or off Table 17 Power Supply Connector Pin Signal Name 1 3 3 V 2 3 3 V 3 Ground 4 5 V 5 Ground 6 5 V 7 Ground 8 PWRGD Power Good 9 5 VSB Standby 10 12 V 11 3 3 V 12 12 V 13 Ground 14 PS ON power supply remote on off control 15 Ground 16 Ground 17 Ground 18 5 V 19 5 V 20 5 V Other Useful Connectors Table 18 Front Panel I...

Page 67: ...Right Out Table 23 Audio Line In Connector Pin Signal Name Sleeve Ground Tip Audio Left In Ring Audio Right In Table 24 Audio Mic In Connector Pin Signal Name Sleeve Ground Tip Mono In Ring Electret Bias Voltage Table 25 Parallel Port Connector Pin Signal Name Pin Signal Name 1 Strobe 14 Auto Feed 2 Data bit 0 15 Fault 3 Data bit 1 16 INIT 4 Data bit 2 17 SLCT IN 5 Data bit 3 18 Ground 6 Data bit ...

Page 68: ...ed A45 3 3 V B45 AD14 A15 RST B15 Ground A46 AD13 B46 Ground A16 5 V I O B16 CLK A47 AD11 B47 AD12 A17 GNT B17 Ground A48 Ground B48 AD10 A18 Ground B18 REQ A49 AD09 B49 Ground A19 PME B19 5 V I O A50 Key B50 Key A20 AD30 B20 AD31 A51 Key B51 Key A21 3 3 V B21 AD29 A52 C BE0 B52 AD08 A22 AD28 B22 Ground A53 3 3 V B53 AD07 A23 AD26 B23 AD27 A54 AD06 B54 3 3 V A24 Ground B24 AD25 A55 AD04 B55 AD05 A...

Page 69: ...5M Motherboard Manual 68 Table 28 COM2 Pin Pin Assignment Pin Pin Assignment 1 DCD 2 RXD 3 TXD 4 DTR 5 Ground 6 DSR 7 RTS 8 CTS 9 RI 10 NC Table 29 Internal Speaker Pin Pin Assignment 1 Signal 2 NC 3 Ground 4 5V ...

Page 70: ... Procedure TR NWT 000332 Issue 4 September 1991 The MTBF prediction is for Redesigning the motherboard for alternate components if failure rates exceed reliability expectations Estimating repair rates and spare parts requirements MTBF data is calculated from predicted data 55 C The MTBF prediction for the motherboard is 213 209 hours Temperature Table 30 Temperature Temperature Specification Non o...

Page 71: ... used by application software to control some special features Each graphics board and printer requires its own driver D Type A common type of connector used for connecting printers serial ports game port and many other types of interface DRAM Dynamic Ram used for main system memory providing a moderately fast but cheap storage solution FDC Floppy Disk Controller the interface for connecting flopp...

Page 72: ...vented It is a high speed data bus that carries information to and from components known as Local Bus RAM Random Access Memory the memory used by the computer for running programs and storing data ROM Read Only Memory a memory chip which doesn t lose its data when the system is switched off It is used to store the System BIOS and VGA BIOS instructions It is slower than RAM Shadow Memory The BIOS i...

Page 73: ...V1 0 VIG615M Motherboard Manual 72 Notes ...

Page 74: ...n has listed some questions that you may like to answer and return to Viglen This will help Viglen help to keep and improve the standard of their manuals 1 Is the information provided in this and other manuals clear enough 2 What could be added to the manual to improve it 3 Does the manual go into enough detail 4 Would you like an on line version of this manual ...

Page 75: ...support and Service Departments 6 Are there any technological improvements that could be made to the system 7 Other points you would like to mention Please return this slip to Product Development Dept Viglen Ltd 7 Handley Page Way Colney Street St Albans Hertfordshire AL2 2DQ ...

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