126.235 bytes

Service Hints & Tips

Document ID: GSMH-3EAK7N

This document is provided to IBM and our Business Partners to help sell and/or service IBM products. It is not to be distributed beyond that audience or used for any other purpose.

TP General - Introduction of HMM

Applicable to: World-Wide

Portable Computer Descriptions:
Models N51, CL57, and P70/75 and Thinkpads 700x and 720x are Micro Channel systems. All others are AT/ISA bus systems.

Model

Type

Processor

Memory

Hrd Dsk

Model L40SX

8543-044

386SX-20

2M/18M

60M

Model N45 SL

2614-065

386SL-25

2M/8M

80M

2614-067

386SL-25

2M/8M

120M

Model N51 SLC

8551-025

386SLC-16

2M/10M

80M

Model N51 SX

8551-033

386SX-16

2M/10M

40M

Model CL57 SX

8554-045

386SX-20

2M/16M

80M

Model P70 386

8573-031

80386-16

2M/8M

30M

8573-061

80386-20

2M/8M

60M

8573-121

80386-20

2M/8M

120M

Model P75 486

8573-161

80486-33

8M/16M

160M

8573-401

80486-33

8M/16M

400M

ThinkPad 300

2615-065

386SL-25

4M/12M

80M

2615-067

386SL-25

4M/12M

120M

ThinkPad 340

2610

486SLC2-50/25

4M/12M

125M

ThinkPad 340CSE

2610

486SLC2-50/25

4M/12M

200M

ThinkPad 340CSE

2610

486SLC2-66/33

4M/12M

360M

ThinkPad 345

2610

486DX4-75

4M/20M

360M

ThinkPad 345CS

2610

DX4-75

4M/20M

540M

ThinkPad 350

2618-AOE

486SL-25

4M/20M

85M

2618-JOA

486SL-25

4M/20M

125M

2618-LOA

486SL-25

4M/20M

250M

ThinkPad 350C

2618-NOA

486SL-25

4M/20M

125M

2618-POA

486SL-25

4M/20M

250M

ThinkPad 355

2619

486SX-33

4M/16M

125M

ThinkPad 355C

2619

486SX-33

4M/16M

125M

2619

486SX-33

4M/16M

250M

ThinkPad 355Cs

2619

486SX-33

2M/16M

170M

2619

486SX-33

2M/16M

250M

ThinkPad 360

2620

486SX-33

4M/16M

170M

2620

486SX-33

4M/16M

340M

ThinkPad 360C

2620

486SX-33

4M/16M

170M

2620

486SX-33

4M/16M

340M

ThinkPad 360Cs

2620

486SX-33

4M/16M

170M

2620

486SX-33

4M/16M

340M

ThinkPad 360Ce

2620

486DX2-50/25

4M/16M

170M

2620

486DX2-50/25

4M/16M

340M

2620

486DX2-50/25

4M/16M

540M

ThinkPad 360Cse

2620

486DX2-50/25

4M/16M

170M

2620

486DX2-50/25

4M/16M

340M

2620

486DX2-50/25

4M/16M

540M

ThinkPad 360P

2620

486SX-33

4M/16M

170M

2620

486SX-33

4M/16M

340M

ThinkPad 365C

2625-205

486DX4-75

8M/24M

340M

2625-x05

486DX4-75

8M/24M

540M

ThinkPad 365E

2625

5x86-100/33

8M/24M

540M

ThinkPad 365ED

2625

5x86-100/33

8M/24M

540M

ThinkPad 365X/XD

2625

Pentium-100

8M/24M

540M

2625

Pentium-100

8M/24M

810M

2625

Pentium-100

8M/24M

1.0G

ThinkPad 365X/XD

2625

Pentium-120

8M/24M

540M

2625

Pentium-120

8M/24M

810M

2625

Pentium-120

8M/24M

1.0G

ThinkPad 365X/XD

2625

Pentium-133

8M/40M

810M

2625

Pentium-133

8M/40M

1.0G

2625

Pentium-133

8M/40M

1.3G

ThinkPad 370C

9545

486DX4-75/25

4M/32M

340M

9545

486DX4-75/25

4M/32M

540M

9545

486DX4-75/33

4M/32M

810M

ThinkPad 500

2603-081

486SLC2-50/25

4M/12M

80M

2603-171

486SLC2-50/25

4M/12M

170M

ThinkPad 560

2630

Pentium-100

8M/40M

540M

2630

Pentium-100

8M/40M

810M

2630

Pentium-100

8M/40M

1.0G

ThinkPad 560

2630

Pentium-120

8M/40M

540M

2630

Pentium-120

8M/40M

810M

2630

Pentium-120

8M/40M

1.0G

ThinkPad 560

2640

Pentium-130

8M/40M

540M

2640

Pentium-130

8M/40M

810M

2640

Pentium-130

8M/40M

1.0G

ThinkPad 700

9552-300

486SLC-25

4M/16M

80M

9552-301

486SLC-25

4M/16M

120M

ThinkPad 700C

9552-30B

486SLC-25

4M/16M

120M

ThinkPad 701C

2630

486DX2-25/50

4M/32M

360MB

2630

486DX2-25/50

4M/32M

540MB

2630

486DX4-25/75

8M/32M

360MB

2630

486DX4-25/75

8M/32M

540MB

ThinkPad 701Cs

2630

486DX2-25/50

4M/32M

360MB

2630

486DX2-25/50

4M/32M

540MB

2630

486DX4-25/75

8M/32M

360MB

2630

486DX4-25/75

8M/32M

540MB

ThinkPad 710T

2523-09Y

486SLC2-25

4M/12M

TPF

2523-302

486SLC2-25

4M/12M

60M

2523-303

486SLC2-25

4M/12M

60M

ThinkPad 720

9552-307

486SLC-25/50

4M/16M

120M

9552-308

486SLC-25/50

4M/16M

160M

ThinkPad 720C

9552-30J

486SLC-25/50

4M/16M

160M

ThinkPad 730T

2524

486SLC2-25

4M/12M

0M

2524

486SLC2-25

4M/12M

60M

ThinkPad 750

9545-006

486SL-33

4M/20M

170M

9545-008

486SL-33

4M/20M

340M

ThinkPad 750C

9545-306

486SL-33

4M/20M

170M

9545-308

486SL-33

4M/20M

340M

ThinkPad 750Ce

9545

P24S-50/25

4M/20M

340M

ThinkPad 750Cs

9545

486SL-33

4M/20M

170M

9545

486SL-33

4M/20M

340M

ThinkPad 750P

9545-40C

486SL-33

4M/20M

170M

9545-40E

486SL-33

4M/20M

340M

ThinkPad 755C

9545

486DX4-50/25

4M/32M

170M

9545

486DX4-50/25

4M/32M

340M

9545

486DX4-50/25

4M/32M

540M

9545

486DX4-75/25

4M/32M

170M

9545

486DX4-75/25

4M/32M

340M

9545

486DX4-75/25

4M/32M

540M

ThinkPad 755CD

9545

486DX4-100/33

8M/32M

540M

9545

486DX4-100/33

8M/32M

810M

ThinkPad 755CDV

9545

486DX4-100/33

8M/32M

540M

9545

486DX4-100/33

8M/32M

810M

ThinkPad 755Ce

9545

486DX4-100/33

8M/32M

340M

9545

486DX4-100/33

8M/32M

540M

9545

486DX4-100/33

8M/32M

810M

ThinkPad 755Cs

9545

486DX4-50/25

8M/32M

170M

9545

486DX4-50/25

8M/32M

340M

9545

486DX4-50/25

8M/32M

540M

9545

486DX4-75/25

8M/32M

170M

9545

486DX4-75/25

8M/32M

340M

9545

486DX4-75/25

8M/32M

540M

ThinkPad 755Cse

9545

486DX4-100/33

8M/32M

340M

9545

486DX4-100/33

8M/32M

540M

9545

486DX4-100/33

8M/32M

810M

ThinkPad 755CV

9545

486DX4-100/33

8M/32M

540M

9545

486DX4-100/33

8M/32M

810M

ThinkPad 755CV

9545

486DX4-100/33

8M/32M

540M

9545

486DX4-100/33

8M/32M

810M

ThinkPad 760C/CD

9546

Pentium-90

8M/40M

360M

9546

Pentium-120

8M/40M

720M

9546

Pentium-90

8M/40M

810M

9546

Pentium-120

8M/40M

1.2G

ThinkPad 760E/ED

9546

Pentium-120

8M/80M

810M

9546

Pentium-133

8M/80M

1.0G

9546

Pentium-150

8M/80M

1.2G

9546

Pentium-166

8M/80M

1.3G

9546

Pentium-166

8M/80M

2.1G

ThinkPad 760EL/ELD

9547

Pentium-100

8M/80M

810M

9547

Pentium-100

8M/80M

1.0G

9547

Pentium-100

8M/80M

1.2G

9547

Pentium-120

8M/80M

810M

9547

Pentium-120

8M/80M

1.0G

9547

Pentium-120

8M/80M

1.2G

9547

Pentium-133

8M/80M

810M

9547

Pentium-133

8M/80M

1.0G

9547

Pentium-133

8M/80M

1.2G

ThinkPad 760L/LD

9546

Pentium-90

8M/40M

810M

9546

Pentium-90

8M/40M

1.1G

9546

Pentium-90

8M/40M

1.2G

9546

Pentium-120

8M/40M

810M

9546

Pentium-120

8M/40M

1.1G

9546

Pentium-120

8M/40M

1.2G


Note:
C Color M Megabyte T Tablet TPF ThinkPad File
P Pen

Important Service Information:

Important:
Diskette fixes are customer installable. The diskette fixes are located on the PC Company Bulletin Board Service (BBS). The direct phone line for modem connection is 919-557-0001 or tieline 255-0001.
Advise customers to contact the PC Company HelpCenter at 800-772-2227 if they need assistance in obtaining or installing any diskette fixes.

Customers in Canada should call IBM HelpPC at 800-565-3344 for assistance or down-load information. The Canadian BBS phone numbers are:
Montreal 514-938-3022
Toronto 905-316-4255
Vancouver 604-664-6464
Winnipeg 204-934-2735


FRU Replacement Strategy:

Before Replacing Parts:
Ensure that all diskette fixes are installed prior to replacing any FRUs listed in this manual.


Use the following strategy to prevent unnecessary FRU replacement and service expense:
If you are instructed to replace a FRU and that does not correct the problem, reinstall the original FRU before you continue Some computers have both a processor board and a system board. If you are instructed to replace either the processor board or the system board, and the first board that you replaced does not correct the problem, reinstall the original board, then replace the other (processor or system) board.
If an adapter or device consists of more than one FRU, an error code may be caused by any of the FRUs. Before replacing the
adapter or device, remove the FRUs, one by one, to see if the symptoms change. Replace only the FRU that changed the symptoms.

Attention:
A customized setup configuration (other than default settings) may exist on the computer you are servicing. Running Automatic Configuration may alter those settings. Note the current configuration settings (using the View Configuration option) and verify that the settings are in place when service is complete.


The advanced diagnostic tests are intended to test only IBM products. Non-IBM products or modified options can give false errors and invalid responses.

Hard Disk Drive Replacement Strategy:
Always try to run a low-level format before replacing a hard disk drive.

Attention:
The drive startup sequence in the computer you are servicing might have been changed. Be extremely careful during write operations such as copying, saving, or formatting. Data or programs can be overwritten if you select an incorrect drive.



Screw Size Chart:
Use the chart below to match the size and shape of the screws used in the computer you are servicing.

Screw Size Chart (continued):
Use the chart below to match the size and shape of the screws used in the computer you are servicing.

Screw Size Chart (continued):
Use the chart below to match the size and shape of the screws used in the computer you are servicing.


Search Keywords

Hint Category

Hardware Maintenance Information

Date Created

14-02-97

Last Updated

01-05-98

Revision Date

29-04-99

Brand

IBM ThinkPad

Product Family

ThinkPads General

Machine Type

2625, 2640

Model

Various

TypeModel

Retain Tip (if applicable)

N/A

Reverse Doclinks
and Admin Purposes