IBM PS/2 95 XP 486 Hardware Maintenance Reference Download | Manualshive

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7.12 1060 System Board

Cover and Front Bezel (1005)

Adapters and Adapter Guide (1035)

Power Supply (1045)

Hard Disk Drives (1030) (if necessary)

Disconnect any cables necessary for removal.

Note: When a new system board is installed, run the restore configuration

program from the hard disk drive to restore time, date, and any

unique configuration data. Reset the start-up sequence.

PICTURE 15

IBM PS/2 Model 95 XP 486 HMR

1060 System Board

¦ Copyright IBM Corp. 1990, 1991

7.12 - 1

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Summary of Contents for PS/2 95 XP 486

Page 1: ...FRONT PICTURE 1 Part Number 04G3393 Form Number S15F 2246 02 October 22 1991 IBM PS 2 Model 95 XP 486 HMR Copyright IBM Corp 1990 1991 FRONT 1 ...

Page 2: ...duct 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 programming or services that are not announced in your country Such references or information must not be construed to mean that IBM intends to announce such IBM products programming or services in your country R...

Page 3: ...rograms or services except those expressly designated by IBM are the user s responsibility IBM may have patents or pending patent applications covering subject matter in this document The furnishing of this document does not give you any license to these patents You can send license inquiries in writing to the IBM Director of Commercial Relations IBM Corporation Purchase NY 10577 The following ter...

Page 4: ...of The System Partition 4 3 Diagnostic Programs and Information 5 0 Specifications 6 0 Special Tools 7 0 Removals and Replacements 7 1 1005 Cover and Front Bezel 7 2 1010 Cover Lock 7 3 1015 Drive Retainer and Bezels 7 4 1020 Information Panel Assembly 7 5 1025 Diskette Drive 7 6 1030 Hard Disk Drive 7 7 1035 Adapters and Adapter Guide 7 8 1040 487SX Processor extended math capability 7 9 1045 Pow...

Page 5: ... access memory RAM 64MB total system memory capacity Graphics array Extended graphics array XGA with 512KB expandable to 1MB Video graphics array VGA compatible Eight 32 bit expansion slots Six 32 bit expansion slots with matched memory extension Two 32 bit expansion slots with auxiliary video extension Serial port Parallel port Diskette drive controller Battery to keep CMOS RAM active when power ...

Page 6: ...1 1 Security Subtopics 1 1 1 Cover Lock 1 1 2 Power On Password IBM PS 2 Model 95 XP 486 HMR Security Copyright IBM Corp 1990 1991 1 1 1 ...

Page 7: ...h the user s key If the keys for the cover lock are lost order a new cover lock assembly See the Parts section in the Hardware Maintenance Service pamphlet The new assembly contains two keys Use a pair of pliers with one of the new keys to force the old cover lock open IBM PS 2 Model 95 XP 486 HMR Cover Lock Copyright IBM Corp 1990 1991 1 1 1 1 ...

Page 8: ...on password power off the system and do the following 1 Locate connector J16 on the system board see System Board in topic 8 5 for connector location 2 Move the jumper on J16 so that it connects the center pin and the pin on the opposite end of the connector 3 Power on the system The system detects the change and the password is erased from memory Leave the jumper in that position until the next t...

Page 9: ...port Parallel port Diskette drive controller Keyboard connector Pointing device connector Subtopics 1 2 1 Processor Board 1 2 2 CMOS RAM and CMOS RAM Extension 1 2 3 IML POST and BIOS 1 2 4 Graphics Array 1 2 5 Serial Port 1 2 6 Parallel Port 1 2 7 Diskette Drive Controller 1 2 8 Keyboard Connector and Pointing Device Connector IBM PS 2 Model 95 XP 486 HMR System Features Copyright IBM Corp 1990 1...

Page 10: ... the system clock the direct memory access DMA controller and the memory controller The system microprocessor is a 32 bit microprocessor that operates in the real address mode or in the virtual address protected mode The amount of memory supported and the clock speed vary with the type of processor board installed IBM PS 2 Model 95 XP 486 HMR Processor Board Copyright IBM Corp 1990 1991 1 2 1 1 ...

Page 11: ... extension is kept active by the 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 the user has a customized configuration that uses settings other than the default run restore configuration from the system programs stored on the hard disk drive If the configuration uses the default ...

Page 12: ...rams The partition is not affected when the drive is formatted using the operating system Format command Errors During POST If the POST detects a problem an eight digit error code is displayed Replacing the Default Hard Disk Drive If you replace the default hard disk drive you must recopy all of the files onto the replacement hard disk drive To recopy the files 1 Start the system using the custome...

Page 13: ...solution in VGA compatibility mode is 720 by 400 picture elements PELS in the text mode and 640 by 480 PELS in the graphics mode A maximum of 256 colors or 64 shades of gray is supported in VGA mode Composite video is not supported The graphics array is in the XGA mode only when enabled by the DOS Adapter Interface or video device driver example MS Windows OS 2 Presentation Manager device drivers ...

Page 14: ...system configuration as SERIAL 1 through SERIAL 8 Adapters with serial ports also can be configured from SERIAL 1 to SERIAL 8 Conflicts occur with multiple communication lines if two or more lines have the same address Select the Set configuration option from the system programs on the hard disk drive Select View Configuration to verify that no lines are addressed the same IBM PS 2 Model 95 XP 486...

Page 15: ...s the input output capabilities of the port When adapters with additional parallel ports are installed the system can support three devices each addressed separately as PARALLEL 1 PARALLEL 2 or PARALLEL 3 Note Conflicts occur when using multiple devices if two or more devices are addressed the same Select the Set configuration option from the system programs on the hard disk drive Select View conf...

Page 16: ...able on the system board Signals and voltages are supplied through the diskette drive cable that plugs into the connector These signals and voltages can operate two 3 5 inch diskette drives and one 5 25 inch drive IBM PS 2 Model 95 XP 486 HMR Diskette Drive Controller Copyright IBM Corp 1990 1991 1 2 7 1 ...

Page 17: ...board and a pointing device mouse The keyboard connector is marked with a small keyboard figure molded into the back panel the unmarked connector is for a pointing device The interface logic is the same for both IBM PS 2 Model 95 XP 486 HMR Keyboard Connector and Pointing Device Connector Copyright IBM Corp 1990 1991 1 2 8 1 ...

Page 18: ...n requires matched pairs of memory module kits the size and the speed must be the same The kits must be installed in the following order starting with the J11 memory riser card pair J1 J3 then pair J2 J4 and so forth This technique of addressing memory in pairs enhances performance Noninterleaved Memory A noninterleaved memory configuration does not require matched pairs of memory module kits the ...

Page 19: ...stalled in an interleaved configuration the system will operate as described under Memory Type 1 systems however memory errors are handled differently If an error occurs in an interleaved memory configuration the pair of memory module kits containing the error will automatically be switched to noninterleaved operation to keep the maximum amount of memory active Only the failing bank of memory will...

Page 20: ...perate in any system board expansion slot For supported options see the Parts section in the Hardware Maintenance Service pamphlet for the system you are servicing Subtopics 2 1 Drive and Diskette Compatibility 2 2 Hard Disk and Diskette Drives 2 3 Terminators IBM PS 2 Model 95 XP 486 HMR Option Compatibility Copyright IBM Corp 1990 1991 2 0 1 ...

Page 21: ...Diskette 720KB 1 44MB Capacity Drive Drive 1 0MB Read Write Read Write 2 0MB Not Compatible Read Write Notes 1 For additional information see Diskette Drives and Diskettes in the IBM Personal System 2 Hardware Maintenance Reference General Information pamphlet 2 You must only install drives designed for this system Use of drives not designed for this system could cause intermittent problems IBM PS...

Page 22: ...eloaded in a protected partition For information about the IML image see IML POST and BIOS in topic 1 2 3 For supported hard disk drives see the parts section in the Hardware Maintenance Service pamphlet The Model 95 uses hard disk drives that automatically position and lock the read write heads in nondata areas when the system is powered off IBM PS 2 Model 95 XP 486 HMR Hard Disk and Diskette Dri...

Page 23: ... terminators removed SCSI Adapter Terminator requirements for the SCSI adapter vary depending on the configuration of the system The location and appearance of the terminators may vary from drive to drive An identification label or tag usually T RES is attached to each terminator for easy identification Note For additional information on this subject see SCSI Devices in the Options and Adapters se...

Page 24: ...escribes the operations that occur from the time the system is powered on until the minimum operating requirements have been met Subtopics 3 1 Power Supply IBM PS 2 Model 95 XP 486 HMR Operating Requirements Copyright IBM Corp 1990 1991 3 0 1 ...

Page 25: ...operating voltages When the system is powered off for 8 seconds or more and then powered on the power supply generates a power good signal that resets system logic The presence of the power good signal turns on the green power on light on the front of the system indicating that the power supply is functioning correctly IBM PS 2 Model 95 XP 486 HMR Power Supply Copyright IBM Corp 1990 1991 3 1 1 ...

Page 26: ... required Note For more information see Processor Board and Reference Diskette Matrix in the Hardware Maintenance Service pamphlet Subtopics 4 1 Installing a New Version of the Reference Diskette 4 2 Making a Backup Copy of The System Partition 4 3 Diagnostic Programs and Information IBM PS 2 Model 95 XP 486 HMR Reference Diskette Copyright IBM Corp 1990 1991 4 0 1 ...

Page 27: ...ST finishes press Ctrl Alt Del When the cursor moves to the top right corner of the screen press Ctrl Alt Ins 6 If you have a backup copy of the system partition continue with step 7 If you do not have a backup copy of the system partition but you have the option diskettes go to step 8 7 Select Copy an option diskette from the Main Menu When the Insert your option diskette message appears insert t...

Page 28: ...ette drive and follow the instructions on the screen Note If you receive a message indicating that the diskette is full it means that the option files combined with the system programs on the system partition will not fit on a single 2 0MB diskette In this case you will not be able to make a backup copy of the system partition Use the new Reference Diskette and the original option diskettes as a b...

Page 29: ...s pamphlet for information on the following System Programs Selectable Startup Function POST Advanced Diagnostic Programs Presence Test Installed Devices List System Checkout Error Log Formatting IBM PS 2 Model 95 XP 486 HMR Diagnostic Programs and Information Copyright IBM Corp 1990 1991 4 3 1 ...

Page 30: ... 80 System Off 8 to 80 Maximum altitude 2134 m 7000 ft Heat Output 1245 British Thermal Units BTUs per hour 365 1 watts Electrical Input voltage sinewave input is required Low Range Minimum 90 V ac Maximum 137 V ac High Range Minimum 180 V ac Maximum 265 V ac Input kilovolt amperes kVA Minimum Configuration as shipped from IBM Approximately 0 18 kVA Maximum Configuration Approximately 0 78 kVA IBM...

Page 31: ... the Triplett Model 310 1 Wrap Plug The Tri Connector Wrap Plug IBM part 72X8546 is used during advanced diagnostic tests of the parallel ports and the serial ports PICTURE 3 1 Manufactured by Triplett Corporation Bluffton Ohio 45817 U S A IBM PS 2 Model 95 XP 486 HMR Special Tools Copyright IBM Corp 1990 1991 6 0 1 ...

Page 32: ...ction and arrangement information CAUTION Before removing any FRU power off the system unplug all power cords from electrical outlets and disconnect any interconnecting cables Warning The system board adapters memory modules and the math coprocessor can be damaged by electrostatic discharge Use an electrostatic discharge ESD strap to establish personal grounding If you don t have an ESD strap esta...

Page 33: ...7 1 1005 Cover and Front Bezel PICTURE 4 IBM PS 2 Model 95 XP 486 HMR 1005 Cover and Front Bezel Copyright IBM Corp 1990 1991 7 1 1 ...

Page 34: ...7 2 1010 Cover Lock Cover and Front Bezel 1005 PICTURE 5 IBM PS 2 Model 95 XP 486 HMR 1010 Cover Lock Copyright IBM Corp 1990 1991 7 2 1 ...

Page 35: ...7 3 1015 Drive Retainer and Bezels Cover and Front Bezel 1005 PICTURE 6 IBM PS 2 Model 95 XP 486 HMR 1015 Drive Retainer and Bezels Copyright IBM Corp 1990 1991 7 3 1 ...

Page 36: ...Panel Assembly Cover and Front Bezel 1005 Drive Retainer and Bezels 1020 Disconnect any cables necessary for removal PICTURE 7 IBM PS 2 Model 95 XP 486 HMR 1020 Information Panel Assembly Copyright IBM Corp 1990 1991 7 4 1 ...

Page 37: ...ecessary for removal Notes 1 You must only install drives designed for this system Use of drives not designed for this system could cause intermittent problems 2 See Internal Cables page 8 4 for cable connections PICTURE 8 IBM PS 2 Model 95 XP 486 HMR 1025 Diskette Drive Copyright IBM Corp 1990 1991 7 5 1 ...

Page 38: ...d Front Bezel 1005 Drive Retainer and Bezels 1015 Disconnect any cables necessary for removal Notes 1 The last drive in the chain requires a terminator 2 See Internal Cables on page 8 4 for cable information 3 Load the IML image onto the replacement default drive For more information see IML POST and BIOS in topic 1 2 3 PICTURE 9 IBM PS 2 Model 95 XP 486 HMR 1030 Hard Disk Drive Copyright IBM Corp...

Page 39: ... an adapter or processor board note the slot location Install the replacement FRU into the same slot Stored configuration information depends on the location of the adapter If you must install the replacement adapter in a different location run the set configuration program from the hard disk drive to reset the system configuration information PICTURE 10 IBM PS 2 Model 95 XP 486 HMR 1035 Adapters ...

Page 40: ... the screwdriver around all edges until the processor raises up When you reinstall the processor align the beveled corner 1 with the beveled corner marked on the board PICTURE 11 On the 20 MHz board left the jumper 2 must be in positions 1 and 2 if a 487SX processor is installed Note A slight gap between the processor and the connector is normal IBM PS 2 Model 95 XP 486 HMR 1040 487SX Processor ex...

Page 41: ...7 9 1045 Power Supply Cover and Front Bezel 1005 Disconnect any cables necessary for removal PICTURE 12 IBM PS 2 Model 95 XP 486 HMR 1045 Power Supply Copyright IBM Corp 1990 1991 7 9 1 ...

Page 42: ...et configuration program from the hard disk drive to reset the system configuration information 2 If memory is replaced because it failed the advanced diagnostic memory test must be run or the system will not recognize the replacement memory PICTURE 13 IBM PS 2 Model 95 XP 486 HMR 1050 Memory Module Kit Copyright IBM Corp 1990 1991 7 10 1 ...

Page 43: ... Part No 33F8354 Use of another battery could result in ignition or explosion of the battery Replacement batteries can be ordered from IBM or IBM Authorized Dealers Warning The battery is located on the system board Be careful when removing or replacing the battery If the battery clip is broken the system board must be replaced Note If the battery is removed run the set configuration program from ...

Page 44: ...ssary Disconnect any cables necessary for removal Note When a new system board is installed run the restore configuration program from the hard disk drive to restore time date and any unique configuration data Reset the start up sequence PICTURE 15 IBM PS 2 Model 95 XP 486 HMR 1060 System Board Copyright IBM Corp 1990 1991 7 12 1 ...

Page 45: ...ter Guide 1035 Power Supply 1045 System Board 1060 Disconnect any cables necessary for removal Note Loosen and remove the expansion slot covers before removing the rear bezel PICTURE 16 IBM PS 2 Model 95 XP 486 HMR 1065 Adapter Retainer and Ground Assembly Copyright IBM Corp 1990 1991 7 13 1 ...

Page 46: ... 1035 Power Supply 1045 System Board 1060 Disconnect any cables necessary for removal Note Loosen and remove the expansion slot covers before removing the rear bezel PICTURE 17 IBM PS 2 Model 95 XP 486 HMR 1070 Rear Bezel Copyright IBM Corp 1990 1991 7 14 1 ...

Page 47: ...ged ground spring can result in intermittent noise problems Cover and Front Bezel 1005 Drive Retainer and Bezels 1015 Diskette Drives 1025 Hard Disk Drives 1030 Power Supply 1045 System Board 1060 Disconnect any cables necessary for removal PICTURE 18 IBM PS 2 Model 95 XP 486 HMR 1075 Drive Support Structure Copyright IBM Corp 1990 1991 7 15 1 ...

Page 48: ...ccess Cover Fan The access cover fan is located on the inside of the system access cover Cover and Front Bezel 1005 PICTURE 19 IBM PS 2 Model 95 XP 486 HMR 1080 Access Cover Fan Copyright IBM Corp 1990 1991 7 16 1 ...

Page 49: ... Fan Cable Cover and Front Bezel 1005 Power Supply 1045 Disconnect the fan cable from connector J28 on the system board PICTURE 20 IBM PS 2 Model 95 XP 486 HMR 1085 Access Cover Fan Cable Copyright IBM Corp 1990 1991 7 17 1 ...

Page 50: ...f option devices The trays also help to direct air flow when no options are installed in the D bays The trays should remain in the D bays until options are installed Note The location and quantity of the trays will vary depending on the configuration of the system PICTURE 21 IBM PS 2 Model 95 XP 486 HMR 1090 Option Hardware Trays Copyright IBM Corp 1990 1991 7 18 1 ...

Page 51: ...7 19 1095 Pedestal Note Pull out on the tabs just far enough to release the pedestal PICTURE 22 IBM PS 2 Model 95 XP 486 HMR 1095 Pedestal Copyright IBM Corp 1990 1991 7 19 1 ...

Page 52: ...8 0 Locations Subtopics 8 1 Front View 8 2 Rear View 8 3 Interior View 8 4 Internal Cables 8 5 System Board 8 6 Processor Board IBM PS 2 Model 95 XP 486 HMR Locations Copyright IBM Corp 1990 1991 8 0 1 ...

Page 53: ...t 3 Information panel 4 Serial number 5 Diskette drive Bay A 6 Diskette drive in use light 7 Diskette eject button 8 Bay B 9 Bay E 10 Bay D 11 Bay D1 12 Cover lock PICTURE 23 IBM PS 2 Model 95 XP 486 HMR Front View Copyright IBM Corp 1990 1991 8 1 1 ...

Page 54: ...ots 2 Serial port 3 Parallel port 4 Pointing device connector 5 Keyboard connector 6 Power cord connector 7 Serial number 8 Voltage select switch PICTURE 24 IBM PS 2 Model 95 XP 486 HMR Rear View Copyright IBM Corp 1990 1991 8 2 1 ...

Page 55: ...nd ground assembly 3 Processor board 4 Access Cover Fan Cable 5 System board 6 Power supply 7 Option device bays 8 Hard disk drive 9 Drive retainer 10 Diskette drive PICTURE 25 IBM PS 2 Model 95 XP 486 HMR Interior View Copyright IBM Corp 1990 1991 8 3 1 ...

Page 56: ...t the various devices 1 Information panel cable 2 External device cable connector 3 System board 4 Access Cover Fan 5 Power supply 6 Device power cables 7 Signal cable 8 Diskette drive cable PICTURE 26 IBM PS 2 Model 95 XP 486 HMR Internal Cables Copyright IBM Corp 1990 1991 8 4 1 ...

Page 57: ...tor access cover fan 6 Pointing device connector 7 Keyboard connector 8 Memory module connectors 9 Power supply connector 10 J16 connector power on password 11 Battery connector 12 Diskette drive cable connector 13 Operator panel cable connector PICTURE 27 IBM PS 2 Model 95 XP 486 HMR System Board Copyright IBM Corp 1990 1991 8 5 1 ...

Page 58: ...5 MHz boards without Cache is for a 487SX processor with math capability 3 Jumper 20 MHz boards If a 487SX processor labeled 487SX is installed the jumper must be in positions 1 and 2 If a 487SX processor is not installed the jumper must be in positions 2 and 3 Note On the 20 MHz board if a 487SX processor is installed it is in connector 1 4 Cache connector all boards that support Cache PICTURE 28...

Page 59: ...9 0 Grounds 1 Screws 2 Expansion slot screws 3 Chassis ground 4 Primary ground 5 Power cord connector PICTURE 29 Notes IBM PS 2 Model 95 XP 486 HMR Grounds Copyright IBM Corp 1990 1991 9 0 1 ...

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