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Lenovo ThinkCentre M51 Hardware Maintenance Manual - Page 117

Removing, replacing, diskette, drive

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Removing and replacing the diskette drive 1. Remove the cover. See "Removing the cover" on page 92. 2. Rotate the drive bay assembly upward to gain access to the diskette drive cables. * XXXXXXXXX* * XXXXXXXXX* 3. Disconnect the signal and power cables from the rear of the diskette drive. 4. Release the diskette drive by pressing inward on the blue retainer at the side of the drive. 5. Remove the drive by sliding it out the front of the drive bay. 6. Install the retainer bracket on the new drive. 7. Install the diskette drive into the bay from the front until it snaps into position. 8. Connect the signal and power cables to the diskette drive. 9. To complete the installation, go to "Closing the cover and connecting cables" on page 113. Chapter 8. Replacing FRUs (Types 8095, 8141, 8142, 8145, 8420, and 8421) 111

Section	Page
Contents	5
Chapter 1. About this manual	7
Important Safety Information	7
Strategy for replacing FRUs for CTO, CMV, and GAV products	8
Product definition	8
FRU Identification for CTO, CMV, and GAV products	8
Using PEW	8
Using eSupport	9
Using the HMM	9
Important information about replacing RoHS compliant FRUs	9
Chapter 2. Safety information	11
General safety	11
Electrical safety	11
Safety inspection guide	13
Handling electrostatic discharge-sensitive devices	14
Grounding requirements	14
Safety notices (multi-lingual translations)	15
Chapter 3. General information	47
The Access IBM program	47
Additional information resources	47
Physical specifications	47
Types 8095, 8096, 8141, 8142, 8145, 8420, and 8421	48
Types 8097, 8143, 8144, 8146, 8422, 8423 and 8427	49
Types 8098, 8171, 8172, 8173, 8424, and 8425	50
Chapter 4. General Checkout	51
Problem determination tips	52
Chapter 5. Diagnostics using PC-Doctor for DOS	55
Starting PC-Doctor from the Rescue and Recovery workspace	55
Starting PC-Doctor from a diagnostic diskette or CD-ROM	56
Diagnostics program download	56
Navigating through the diagnostics programs	56
Running diagnostics tests	56
Test selection	57
Test results	57
Fixed disk advanced test (FDAT)	57
Quick and Full erase - hard drive	59
Viewing the test log	60
Chapter 6. Using the Setup Utility	61
Starting the Setup Utility program	61
Viewing and changing settings	61
Exiting from the Setup Utility program	61
Using passwords	61
Password considerations	62
User Password	62
Administrator Password	62
IDE Drive User Password	62
IDE Drive Master Password	62
Setting, changing, and deleting a password	63
Using Security Profile by Device	63
Selecting a startup device	64
Selecting a temporary startup device	64
Changing the startup device sequence	64
Advanced settings	64
Chapter 7. Symptom-to-FRU Index	65
Hard disk drive boot error	65
Power Supply Errors	65
Diagnostic error codes	67
Beep symptoms	88
No-beep symptoms	90
POST error codes	91
Miscellaneous error messages	94
Undetermined problems	96
Chapter 8. Replacing FRUs (Types 8095, 8141, 8142, 8145, 8420, and 8421)	97
Locating controls and connectors on the front of the computer	97
Locating connectors on the rear of the computer	98
Removing the cover	98
Locating components	100
Identifying parts on the system board	101
Removing and replacing memory	102
Removing and replacing a PCI adapter	103
Removing and replacing the battery	104
Removing and replacing the power supply	105
Removing and replacing the system board	107
Removing and replacing the microprocessor	109
Removing and replacing the hard disk drive	115
Removing and replacing the optical drive	116
Removing and replacing the diskette drive	117
Removing and replacing the fan assembly	118
Closing the cover and connecting cables	119
Chapter 9. Replacing FRUs (Types 8143, 8144, 8146, 8422, 8423, and 8427)	121
Locating controls and connectors on the front of the computer	121
Locating connectors on the rear of the computer	122
Removing the cover	122
Locating components	123
Identifying parts on the system board	124
Removing and replacing memory	125
Removing and replacing a PCI adapter	126
Removing and replacing the battery	127
Removing and replacing the power supply	127
Removing and replacing the system board	130
Removing and replacing the microprocessor	132
Removing and replacing the hard disk drive	137
Removing and replacing the optical drive	138
Removing and replacing the diskette drive	139
Removing and replacing the fan assembly	140
Replacing the cover and connecting the cables	141
Chapter 10. Replacing FRUs (Types 8098, 8171, 8172, 8173, 8424, and 8425)	143
Locating controls and connectors on the front of the computer	143
Locating connectors on the rear of the computer	144
Opening the cover	144
Locating components	145
Identifying parts on the system board	146
Removing and replacing memory	147
Replacing a PCI adapter	148
Removing and replacing the battery	149
Removing and replacing the power supply	149
Removing and replacing the system board	152
Removing and replacing the microprocessor	153
Removing and replacing the hard disk drive	158
Removing and replacing the optical drive	159
Removing and replacing the diskette drive	160
Removing and replacing the fan assembly	160
Removing and replacing the internal speaker	163
Removing and replacing the power button and LED assembly	163
Closing the cover and connecting cables	165
Chapter 11. FRU lists	167
Machine Type 8095	167
Machine Type 8098	173
Machine Type 8141	178
Machine Type 8142	193
Machine Type 8143	204
Machine Type 8144	220
Machine Type 8145	230
Machine Type 8146	237
Machine Type 8171	243
Machine Type 8172	261
Machine Type 8173	271
Machine Type 8420	278
Machine Type 8421	286
Machine Type 8422	293
Machine Type 8423	304
Machine Type 8424	316
Machine Type 8425	325
Machine Type 8427	334
Chapter 12. Additional Service Information	343
Security features	343
Hardware controlled Passwords	343
Operating system password	343
Vital product data	343
Management Information Format (MIF)	343
BIOS levels	344
Flash update procedures	344
Updating (flashing) BIOS from a diskette or CD-ROM	344
Updating (flashing) BIOS from your operating system	344
Recovering from a POST/BIOS update failure	345
Power management	346
Automatic configuration and power interface (ACPI) BIOS	346
Automatic Power-On features	346
Recovering software using the Rescue and Recovery program	347
Starting the Rescue and Recovery workspace	347
Appendix. Notices	349
Television output notice	350

Match case Limit results 1 per page

Removing

and

replacing

the

diskette

drive

Remove

the

cover.

See

“Removing

the

cover”

page

92.

Rotate

the

drive

bay

assembly

upward

gain

access

the

diskette

drive

cables.

Disconnect

the

signal

and

power

cables

from

the

rear

the

diskette

drive.

Release

the

diskette

drive

pressing

inward

the

blue

retainer

the

side

the

drive.

Remove

the

drive

sliding

out

the

front

the

drive

bay.

Install

the

retainer

bracket

the

new

drive.

Install

the

diskette

drive

into

the

bay

from

the

front

until

snaps

into

position.

Connect

the

signal

and

power

cables

the

diskette

drive.

complete

the

installation,

“Closing

the

cover

and

connecting

cables”

page

113.

Chapter

Replacing

FRUs

(Types

8095,

8141,

8142,

8145,

8420,

and

8421)

111