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IBM PS/2 N51 SX HMR, Руководство пользователя

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 1.2.3 ROM BIOS/POST

  

 Read Only Memory - Basic Input/Output System (ROM BIOS) contains the

 instructions and routines that control the keyboard, diskette drive, hard

 disk drive, displays and other major I/O devices in the system.  Some

 adapters have their own ROM modules containing extended BIOS routines that

 work with the system board ROM BIOS.  The routines for performing the

 power-on self-test (POST) are also contained in the ROM BIOS.

IBM PS/2 Model N51 SX HMR

ROM BIOS/POST

¦ Copyright IBM Corp. 1991

1.2.3 - 1

Содержание PS/2 N51 SX HMR

Страница 1: ...FRONT PICTURE 1 October 22 1991 Part Number 04G5111 Form Number S04G 5111 00 IBM PS 2 Model N51 SX HMR Copyright IBM Corp 1991 FRONT 1...

Страница 2: ...in the product s and or the program s described in this publication at any time It is possible that this publication may contain reference to or information about IBM products machines and programs p...

Страница 3: ...protectible rights may be used instead of the IBM product program or service Evaluation and verification of operation in conjunction with other products programs or services except those expressly des...

Страница 4: ...e IBM Corporation in the United States and or other countries IBM Personal System 2 PS 2 Micro Channel The following terms denoted by a double asterisk in this publication are trademarks of other comp...

Страница 5: ...ion Compatibility 2 1 Hard Disk Drive 2 1 1 Replacing the Hard Disk Drive 2 2 Diskette Drive and Diskette 3 0 System Memory Requirements 4 0 Specifications 4 1 System 4 2 AC Adapter 5 0 Special Tools...

Страница 6: ...xed disk drive with system partition supported Video Graphics Array VGA with Liquid Crystal Display LCD controller LCD panel connector Serial port Parallel port External display port System expansion...

Страница 7: ...1 1 Security Subtopics 1 1 1 Power On Password and Keyboard Password IBM PS 2 Model N51 SX HMR Security Copyright IBM Corp 1991 1 1 1...

Страница 8: ...r over the pins at position 1 PICTURE 2 4 To cancel the password power on the system and leave it until the POST ends 5 Power off the system and remove the jumper 6 Reinstall the bottom cover and the...

Страница 9: ...nctions System expansion port Subtopics 1 2 1 Microprocessor 1 2 2 CMOS RAM and CMOS RAM Extension 1 2 3 ROM BIOS POST 1 2 4 System Partition 1 2 5 Errors during POST 1 2 6 Diskette Drive Controller 1...

Страница 10: ...it processor with a 16 bit external data bus and a 24 bit external address bus The microprocessor operates in two modes real address mode and virtual address protected mode The microprocessor speed is...

Страница 11: ...on is kept active by the backup battery when the system is powered off If the stored data is lost due to a depleted or removed battery the data can be restored using one of the following methods If th...

Страница 12: ...ve hard disk drive displays and other major I O devices in the system Some adapters have their own ROM modules containing extended BIOS routines that work with the system board ROM BIOS The routines f...

Страница 13: ...data The configuration data allows you to use the system without running the automatic configuration after the system configuration has been changed by attaching or removing a communications cartridge...

Страница 14: ...Reference Diskette installed Note The languages of the Reference Diskette and the system must match 2 Select the 2 Backup Restore system programs from the Main Menu 3 Select the 3 Restore the system p...

Страница 15: ...two interface connectors on the system board using a flexible cable Both signals and voltages are supplied through this cable These signals and voltages can only operate one IBM 3 5 inch diskette driv...

Страница 16: ...e APA graphics modes The VGA with LCD controller supports a maximum of 720 by 400 640 by 400 on LCD picture elements PELs in text mode and a maximum of 640 by 480 PELs in graphics mode The VGA with LC...

Страница 17: ...uration as either SERIAL_1 or SERIAL_2 If an optional communication slot with a serial adapter is installed the device address must be different from the primary one Note Conflicts occur when two or m...

Страница 18: ...shell connector and is designed primarily for printers However the port can be used as a general input output port for any device or application that matches its input output capabilities The system c...

Страница 19: ...17 key numeric keypad The Model N51 has only one input device connector However it is possible to connect the numeric keypad and the mouse at the same time through another input device connector loca...

Страница 20: ...es with EIA 232D standard and provides alternative input output capabilities that have the same function as the primary serial port on the rear of the system The internal data fax modem is a dual func...

Страница 21: ...Closing the lid Spending the time specified by System power off option in the Set Advanced Features program Detecting a battery low condition an orange LED is blinking Entering PS2 OFF command in the...

Страница 22: ...connector that can accept a communications cartridge to support various communication capabilities provided with a 16 bit Micro Channel adapter installed in the cartridge IBM PS 2 Model N51 SX HMR Sy...

Страница 23: ...ned for IBM Personal System 2 computers that use Micro Channel architecture can be attached to the system expansion port The communication adapters that the Model N51 supports are IBM 3270 Connection...

Страница 24: ...areas when the system is powered off or the system enters suspend mode No special precautions are required regarding parking the heads when moving the computer Warning Power off the system or close th...

Страница 25: ...he advanced diagnostics programs and the system configuration data set onto the new hard disk Notes 1 If the Reference Diskette has been loaded onto the hard disk drive but the customer s operating sy...

Страница 26: ...a 1 44MB formatted diskette drive It has 1 44 on the eject button Both 1 0MB formatted 720KB and 2 0MB formatted 1 44MB capacity diskettes can be used in this drive IBM PS 2 Model N51 SX HMR Diskette...

Страница 27: ...m board memory the entire 1MB of memory is deactivated and an error code is displayed Note Customer diagnostics is capable of logically eliminating defective memory so that no memory error code appear...

Страница 28: ...4 0 Specifications Subtopics 4 1 System 4 2 AC Adapter IBM PS 2 Model N51 SX HMR Specifications Copyright IBM Corp 1991 4 0 1...

Страница 29: ...On with diskette 10 0 to 35 0 C 50 0 to 95 0 F System Off 0 6 to 45 0 C 33 1 to 113 0 F System in storage 20 C to 60 C 4 0 to 140 0 F Relative Humidity System On 5 to 95 System On with diskette 8 to 8...

Страница 30: ...ac Maximum 137 V ac High Range Minimum 180 V ac Maximum 264 V ac Frequency Range Minimum 47 Hz Maximum 63 Hz Output Voltage 20 V dc Minimum 19 V dc Maximum 21 V dc Maximum Current 1 2 A IBM PS 2 Model...

Страница 31: ...er Kit Use small screwdrivers IBM part 95F3598 when removing and replacing FRUs Wrap Plug The Tri Connector wrap plug IBM part 72X8546 is used during advanced diagnostic tests of Parallel Ports Serial...

Страница 32: ...cadmium Do not disassemble it throw it into fire or water or short circuit it Dispose of the battery pack as required by local ordinances or regulations Warning The hard disk drive has sensitive parts...

Страница 33: ...r cords from electrical outlets remove the battery pack then disconnect any interconnecting cables Note Before removing the bottom cover invert the system and place it on its top on a flat surface PIC...

Страница 34: ...ional communication adapter can be either a serial adapter or an internal data fax modem 2 Disconnect any communication cable from the adapter PICTURE 6 PICTURE 7 IBM PS 2 Model N51 SX HMR 1020 Option...

Страница 35: ...8 PICTURE 9 Note When installing a memory module kit carefully insert the kit into the connector then press it down firmly until both edges snap into place IBM PS 2 Model N51 SX HMR 1030 Memory Module...

Страница 36: ...d in the illustration Remove these three boards as an assembly when you replace the voltage converter 2 When you do Step 8 remove the voltage converter upward to unplug the two connectors under the vo...

Страница 37: ...ter 1040 Warning The flexible cables extending from the hard disk drive are fragile Be very careful when you unplug the two connectors from the system board to remove the hard disk drive PICTURE 12 No...

Страница 38: ...Cover 1010 Voltage Converter 1040 Warning To avoid damaging to the flexible cables carefully unplug the four connectors 1 from the system board PICTURE 13 IBM PS 2 Model N51 SX HMR 1060 Diskette Drive...

Страница 39: ...system configuration data 2 When you replace the keyboard control card or install a new one make sure that the switch setting on the card is suitable for the type of keyboard see Keyboard Control Card...

Страница 40: ...talled 1020 Bottom Cover 1010 Memory Module Kit if installed 1030 Voltage Converter 1040 Hard Disk Drive 1050 Diskette Drive 1060 System Board and Keyboard Control Card 1070 PICTURE 17 IBM PS 2 Model...

Страница 41: ...talled 1020 Bottom Cover 1010 Memory Module Kit if installed 1030 Voltage Converter 1040 Hard Disk Drive 1050 Diskette Drive 1060 System Board and Keyboard Control Card 1070 PICTURE 18 IBM PS 2 Model...

Страница 42: ...When replacing the backup battery use only Part No 07G1225 Use of another battery could result in ignition or explosion of the battery Replacement batteries can be ordered from IBM or IBM Authorized...

Страница 43: ...sassemble it recharge it throw it into fire or water or short circuit it Dispose of the battery as required by local ordinances or regulations Use only Part No 07G1240 when replacing the standby batte...

Страница 44: ...ge cover and slide it forward to remove when the two tabs 1 clear the bezel 2 Make sure the other hinge cover is also removed PICTURE 22 3 Remove the two screws 3 and pull the LCD bezel 4 away from th...

Страница 45: ...6 13 1130 LCD Inverter LCD Bezel 1120 PICTURE 24 IBM PS 2 Model N51 SX HMR 1130 LCD Inverter Copyright IBM Corp 1991 6 13 1...

Страница 46: ...6 14 1140 LCD Panel LCD Bezel 1120 LCD Inverter 1130 PICTURE 25 IBM PS 2 Model N51 SX HMR 1140 LCD Panel Copyright IBM Corp 1991 6 14 1...

Страница 47: ...7 0 Locations Subtopics 7 1 Front View 7 2 Rear View 7 3 Interior View 7 4 System Status Indicators 7 5 System Board IBM PS 2 Model N51 SX HMR Locations Copyright IBM Corp 1991 7 0 1...

Страница 48: ...CD Inverter 5 Power On Light green 6 System Power Switch 7 Diskette Eject Button 8 Diskette Drive 9 Battery Pack 10 Keyboard 11 Bottom Cover 12 Reverse Video Switch 13 Speaker Volume 14 LCD Panel PICT...

Страница 49: ...ne Identification Label 4 System Expansion Port 5 I O Panel 6 Power Control Switch for Communications Cartridge 7 External Display Port 8 Parallel Port 9 Serial Port 10 External Input Device Port 11 L...

Страница 50: ...3 Voltage Converter 4 System Board 5 Speaker 6 Hard Disk Drive 7 Backup Battery 8 Optional Memory Module Kit 9 Battery Presence Switch 10 Standby Battery 11 Keyboard Assembly PICTURE 28 IBM PS 2 Model...

Страница 51: ...7 4 System Status Indicators PICTURE 29 IBM PS 2 Model N51 SX HMR System Status Indicators Copyright IBM Corp 1991 7 4 1...

Страница 52: ...oard Control Card 4 Battery Presence Switch PICTURE 31 Key Connector 1 11 I O Panel 12 2 7 Voltage Converter 3 System Expansion Port 120 pin 4 Password Override Connector 5 Memory Module Kit 6 8 Hard...

Страница 53: ...ystem Board Interface 3 Speaker 4 5 Keyboard 6 Lid Switch Note The numeric key control switch 1 must be set to ON if the part number of the keyboard is 07G1735 U S English For other keyboards set it t...

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