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Air 486VP, Руководство пользователя

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Turbo Switch Connector

The Turbo switch (JP47) is a 2-pin BERG strip.  It is used to connect the
front panel 2-position push switch to the system board speed switching
circuitry.  In Turbo speed, the cache memory is enabled and full speed of
32-bit memory transfer is utilized.  In non-turbo speed, the cache memory
is disabled.  In both speeds, the ISA expansion bus timing compatibility is
still preserved.

Pin

Description

1

Turbo Speed

2

Ground

Notes:   

-

System runs at Turbo speed when pins 1 and 2 are OPEN.

-

System runs at Slow speed when pins 1 and 2 are SHORTED.

Turbo LED Connector 

The Turbo LED connector, marked as "JP46", is a 2-pin BERG strip.  It is
used to connect a CPU operating frequency indicator LED from the front
panel to the system board.  The pin assignments are indicated below:

Pin

Description

1

LED Cathode

2

LED Anode

486VP System Board User's Manual                                  Page 21

Содержание 486VP

Страница 1: ...486VP VL PCI System Board USER S MANUAL Revision 1 0...

Страница 2: ...Inserting the card at an angle may damage the pins in both the AT and VESA Local Bus slots 2 To install the board vertically hold the card in the middle Make sure that the card is even with both slot...

Страница 3: ...Enabled Boot Sequence A C Swap Flopp Drive Disabled Boot Up Floppy Seek Enabled Boot Up Numlock Status On IDE HDD Block Mode Transfer Disabled Memory Parity Error Check Enabled Security Option Setup S...

Страница 4: ...1 Sysclk 2 Sysclk 2 Sysclk F0000 Cacheable Enabled C0000 Cacheable Enabled Cacheable Range 0 128M DRAM Page Mode Slow Page Mode 15 16MB Access Normal 1MB Cache Memory Disabled VGA Type Standard PCI Ar...

Страница 5: ...used or reproduced in any forms or by any means or stored in a database or retrieval system without prior written permission TRADEMARKS Intel is a registered trademark of Intel Corporation IBM is a re...

Страница 6: ...BIOS Jumper Green PC Jumpers Reserved Jumpers SYSTEM BOARD CONNECTORS Power Supply Connectors Keyboard Connector Power LED and Keyboard Lock Connector Speaker Connector Reset Connector Turbo Switch C...

Страница 7: ...SETUP EXIT WITHOUT SAVING CHAPTER 5 KEYBOARD HOT KEYS SYSTEM SPEED APPENDIX A BIOS HARD DISK TYPE APPENDIX B MEMORY MAPPING APPENDIX C AT I O ADDRESS MAP APPENDIX D INTERRUPT ASSIGNMENTS APPENDIX E S...

Страница 8: ...ers features and functionality exceeding any other system board in its class including CPU Intel i486DX4 i486DX2 i486DX i486SX i487SX P24T and Overdrives Cache Memory Supports 256KB 512KB and 1MB cach...

Страница 9: ...3 6V 60mA on board battery Page 8 486VP System Board User s Manual...

Страница 10: ...per operation caution should be taken when connecting these components SYSTEM BOARD JUMPERS Jumpers are used to select between various operating modes A jumper switch consists of two three or four gol...

Страница 11: ...Page 10 486VP System Board User s Manual...

Страница 12: ...FIGURE 486VP System Board User s Manual Page 11...

Страница 13: ...1 2 OF F OFF 1 2 2 3 2 3 OFF 40 MHz OFF 1 2 2 3 OF F ON 2 3 1 2 1 2 ON 50 MHz OFF 2 3 1 2 OF F ON 2 3 1 2 1 2 ON Note For DX4 Only Set JP27 OFF for 25Mhz Set JP28 OFF for 33Mhz CPU Type Jumpers CPU TY...

Страница 14: ...upports 256KB 512KB and 1MB cache sizes Cache Size Jumper Selection Cach e Size JP2 0 JP2 1 JP62 256KB 1 2 1 2 OFF 512KB 2 3 2 3 OFF 1MB 2 3 OFF 2 3 Cache Size and SRAM Locations Cache Size Tag RAM U2...

Страница 15: ...r insert it on to slot PCI3 located near memory banks Interrupt IRQ14 is reserved for IDE Non IDE controllers such as SCSI can be installed on slots PCI0 PCI1 or PCI2 where user can select one additio...

Страница 16: ...S will be destroyed This function would be useful if you were to forget the user password for the system Function JP2 Normal CMOS Operation 1 2 Default Clear CMOS Data 2 3 Follow these steps to clear...

Страница 17: ...ng general purpose Green PC device When signal on this pin goes low the external Green PC device connected to this pin should go into power saving state The power management feature must be enabled th...

Страница 18: ...11 12 JP10A B C D J OFF JP42 JP50 JP51 JP67 OFF JP40 OFF JP9 2 3 JP11 2 3 JP59 1 2 JP60 1 2 JP81 ON JP34 ON JP35 1 2 JP58 2 3 JP29 JP30 JP31 JP32 2 3 JP6 OFF JP56 OFF JP36 JP64 JP65 JP66 1 2 JP53 1 2...

Страница 19: ...o six wire connectors two of the wires on each connector are black Align the two six wire connectors so that the two black wires on each connector are in the middle as shown below Pin Connector J1 Con...

Страница 20: ...V Fused VDC Power LED and Keyboard Lock Connector The Power LED and Keyboard Lock connector JP44 is 5 pin keyed BERG strip It is used to connect 5 VDC power to the power indicator LED at the front pan...

Страница 21: ...tion 1 Speaker Data Out 2 Key No Connection 3 Ground 4 5 VDC Reset Connector The system RESET connector JP45 is a 2 pin BERG strip It is used to connect the push button reset switch located on the fro...

Страница 22: ...eeds the ISA expansion bus timing compatibility is still preserved Pin Description 1 Turbo Speed 2 Ground Notes System runs at Turbo speed when pins 1 and 2 are OPEN System runs at Slow speed when pin...

Страница 23: ...t below shows the possible combinations Jumpers JP22 through JP25 also should be set accordingly Total Memory SIM5 SIM6 SIM7 SIM8 SIM1 SIM2 SIM3 SIM4 SIM9 SIM10 JP2 2 JP2 3 JP2 4 JP2 5 4MB 1Mx9 1 2 1...

Страница 24: ...avoid static electricity Always ground yourself by wearing a wrist or ankle strap 1 Insert the SIMM at a 45 degree angle 2 Gently push the SIMM to an upright position until it snaps into place 3 Repea...

Страница 25: ...to work Note how all cables are connected prior to disconnection 4 Remove the computer s cover 5 Choose an unused VL Bus slot 6 Setting the VL Bus card according to its user s manual 7 Holding the ca...

Страница 26: ...ter may be needed for areas with noisy transmission A 2 inch 8 Ohm speaker to provide sound capability A 2 position switch with a 2 pin connector for speed function A push button switch with 2 pin con...

Страница 27: ...RAM may not be correct The BIOS detects this condition and prompts user to go through the SETUP section This chapter explains how to use the BIOS SETUP program and make the appropriate entries Some of...

Страница 28: ...Hard Disk Type 4 Choose an option and press Enter Modify the system parameters to reflect the options installed in the system 5 Press Esc at anytime to return to the Main Menu 6 In the Main Menu choos...

Страница 29: ...PG UP PG DN Modify the Setup Item Page 28 486VP System Board User s Manual...

Страница 30: ...y if your enter incorrect drive parameters If your particular drive is not one of the 46 pre defined types simply scroll down to select type User and enter the appropriate values for cylinders heads W...

Страница 31: ...lly select Enabled Boot Up NumLock Status When the computer boots it selects the numeric values rather than the cursor control functions on the numeric keypad of IBM compatible keyboards Most extended...

Страница 32: ...p BIOS access by copying BIOS code to fast 32 bit RAM area and executes it from there The default setting is Enabled Video BIOS Shadow Shadowing helps to speed up BIOS access by copying BIOS code to f...

Страница 33: ...F F0000h FFFFFh address range will be cacheable C0000 Cacheable When enabled the Video BIOS block C C0000h C7FFFh address range will be cacheable Cacheable Range The range of addresses that are cache...

Страница 34: ...upports burst feature If the PCI card does not support burst mode enabling this feature may cause performance to degrade CPU Master Fast Interface Enhanced the performance between CPU and PCI when CPU...

Страница 35: ...before the system goes into power saving mode Power Management PM Timers HDD Power Down 1 to 15 minutes This is the timer for Hard Disk Drive power down mode System Power Down 30 seconds to 260 minut...

Страница 36: ...he AT bus Latency Timer 0 to 255 PCI clocks The maximum amount of time that a PCI Bus Master can own the PCI bus Default is 255 IRQ Line Select the PCI adapters interrupt request IRQ that matched with...

Страница 37: ...sword 6 Re enter the new password If the password is miskeyed the first message will reappear Enter Password IDE HDD AUTO DETECTION Use this BIOS utility to automatically detect popular IDE hard disk...

Страница 38: ...any changes during setup and decided not to store those information into non volatile CMOS memory use this option to exit Setup The system should reboot with the current configuration stored in CMOS...

Страница 39: ...speeds as shown below Turbo speed Cache memory and 32 bit DRAM transfer mode are ON Set by pressing key once while holding Ctrl Alt and Shift keys Slow speed Cache memory and 32 bit DRAM transfer mod...

Страница 40: ...512 1023 17 60MB 20 733 5 300 732 17 30MB 21 733 7 300 732 17 43MB 22 733 5 300 733 17 30MB 23 306 4 0 336 17 10MB 24 925 7 0 925 17 54MB 25 925 9 65535 925 17 69MB 26 754 7 754 754 17 44MB 27 754 11...

Страница 41: ...t Cached 000D0000 000DFFFF 64K I O ROM Not Cached 000E0000 000EFFFF 64K Extended BIOS Not Cached 000F0000 000FFFFF 64K On Board BIOS ROM Cached 00100000 00BFFFFF System Memory RAM Cached 00C00000 00FF...

Страница 42: ...F Parallel Printer Port 2 2B0 2DF Alternate Enhanced Graphic Adapter 2E1 GPIB Adapter 0 2E2 2E3 Data Acquisition Adapter 0 2F8 2FF Serial Port 2 RS 232 C 300 31F Prototype Card 360 363 PC Network Low...

Страница 43: ...90 B93 Cluster Adapter 2 EE2 EE3 Data Acquisition Adapter 3 1390 1393 Cluster Adapter 3 22E1 GPIB Adapter 1 2390 2393 Cluster Adapter 4 42E1 GPIB Adapter 2 62E1 GPIB Adapter 3 82E1 GPIB Adapter 4 Page...

Страница 44: ...rrupts from IRQ8 to IRQ15 IRQ3 Serial Port 2 IRQ4 Serial Port 1 IRQ5 Parallel Port 2 IRQ6 Diskette Controller IRQ7 Parallel Port 1 IRQ8 Real Time Clock IRQ9 Expansion Bus Pin IRQ10 Expansion Bus Pin I...

Страница 45: ...y 5 Amp maximum Ripple Noise 100mV maximum TEMPERATURE RANGE Operating 50o to 104o Fahrenheit 10o to 40o Celsius Non Operating 50o to 104o Fahrenheit 10o to 40o Celsius Shipping 22o to 140o Fahrenheit...

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