Gate A20 Option, Memory Parity Check | Multi-Tech Systems RAS96

4 BIOS Setup Utility

Gate A20 Option

This entry allows you to select how the gate A20 is handled. The gate A20 is a device used to address memory above 1 MB. Initially, the gate A20 was handled via a pin on the keyboard. Today, though keyboards still provide this support, it is more common, and much faster, for the system chipset to provide support for gate A20.

Normal Keyboard.

Fast	Chipset (Default).

Memory Parity Check

Parity is a method of checking for errors in system memory. There are both parity and non-parity memory types. At boot, the Award BIOS both sizes and tests all memory. Normally, when a parity error is detected, the BIOS will display a message describing the problem as well as the problem’s location, if possible. The boot process will then terminate and you will not be able to continue until the bad SIMM is located and replaced.

Disabling the Memory Parity Check allows the system to bypass the test and allow your system to boot. You then have a choice of continuing to operate your system or attempting to remedy the problem.

Enabled	Normal memory parity check (Default).
Disabled	Ignore memory parity check.

Typematic Rate Setting

This determines if the typematic rate is to be used. When it is disabled, continually holding down a key on your keyboard will generate only one character. In other words, the BIOS will only report that the key is down. When the typematic rate is enabled, the BIOS will report as before, but it will then wait a moment and, if the key is still down, it will begin to report that the key has been depressed repeatedly. For example, you would use such a feature to accelerate cursor movements with the arrow keys.

Enabled	Enable typematic rate.
Disabled	Disable typematic rate (Default).

Typematic Rate (Chars/Sec)

When the typematic rate is enabled, this item allows you select the rate at which the system registers repeated keystrokes.

6	6 characters per second.
8	8 characters per second.
10	10 characters per second.
12	12 characters per second.
15	15 characters per second.
20	20 characters per second.
24	24 characters per second.
30	30 characters per second.

CommPlete Communications Server

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Multi-Tech Systems RAS96 manual Gate A20 Option, Memory Parity Check, Typematic Rate Setting, Typematic Rate Chars/Sec

Contents

RAS96 RASCard E1 User Guide RAS96 RASCard User Guide Iii Important Safety Instructions Table of Contents Appendix C Post Codes Solving ProblemsPage Introduction Manual Organization Introduction Appendix D Approved Memory Technical SpecificationsAppendix B Post Messages Appendix C Post Codes Humidity range 20-90% noncondensing RASCard Description RAS96 RASCard Memory Banks J14, J15, J16, J18 CPU Frequency Selection J17 Watchdog TimerJumpers Internal Connectors J35 Video External ConnectorsJ2 Power Connector J22 E1 Alarm E1 Status LEDs LED IndicatorsFront Panel Ethernet Status LEDs Reset Switch SwitchesPower Switch Page Installation Installation Procedure Safety WarningsPre-Installation Notes Installation Page Bios Setup Utility Starting Setup Getting Help Using SetupCase of Problems Power Management Setup Standard Cmos SetupBios Features Setup Chipset Features Setup Load Bios Defaults PCI Configuration SetupPassword Setting IDE HDD Auto Detection Load Setup Defaults Exit Without Saving Save and Exit Setup Hard Disks Standard Cmos SetupDate Time CGA Drive a Type / Drive B TypeVideo Memory Halt On Virus Warning Bios Features SetupEnabled Disabled Boot Up NumLock Status Quick Power On Self TestBoot Sequence Boot Up Floppy Seek Typematic Rate Chars/Sec Typematic Rate SettingGate A20 Option Memory Parity Check C8000 Cffff Shadow/DC000 Dffff Shadow Typematic Delay MsecVideo Bios Shadow Security Option Dram Timing Chipset Features SetupSystem Bios Cacheable Memory Hole At 15M-16M Video Bios CacheableBit I/O Recovery Time IDE HDD Block Mode PCI Bursting On-Chip Primary PCI IDEPCI Concurrancy PCI Streaming Power Management Power Management Setup HDD Power Down Doze ModeStandby Mode Suspend Mode Drive Ports Accessed Power Down ActivitiesCOM Ports Accessed LPT Ports Accessed 1st/2nd/3rd/4th Available IRQ PCI Configuration SetupSlot x Using INT# PCI IDE IRQ Map to PCI IRQ Activated by Enter Password Password SettingPage E1 Daughter Cards E1 Overview Specifications E1 Glossary E1 Basics Dnis digits Signaling OptionsE1 Frame Formats E1 Line Coding Country Selection E1 Facility Termination Pin Signal Test Modes RJ-11 Alarm JackPCB Description E1 Line Monitoring Jack Line Coding Configuration of the E1 Daughter CardOrdering an E1 Line Channelized E1 line with 30 DS-0 channels E1 Frame Format Factory Defaults To Configure the E1 Daughter Card Command Example E1 Commands RAS96 RASCard User Guide E1 Daughter Card RAS96 RASCard User Guide E1 Status LEDs E1 Command Messages Functional Description Solving Problems RASCard has no video Troubleshooting Keyboard does not respond to key strokes Invalid time, date or setupCOM1 port does not respond correctly Memory Upgrade Calling Technical Support Diagnostic Tests RAS96 RASCard User Guide Appendixes Video Connector J35 Appendix a Connector PinoutsKeyboard Connector J11 E1 Alarm Connector J22 COM1 Connector J3 Drive Power Connector J13 Pin Floppy Disk Drive Connector J27 IOCS16 Hard Disk Connector J6 Figure A-7. IDE connector IDE Connector J21 Post Beep Error MessagesAppendix B Post Messages Memory Verify Error at Memory Address Error atMemory parity Error at Offending Segment Code Name Description Appendix C Post Codes Post Codes E1-EF Capacity Speed Type Manufacturer Part Number Usable MB Appendix D Approved Memory Appendix E Regulatory Information EMC, Safety and Terminal Directive Compliance