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Item # 9637 FRUs 11 System board, 946GZ (models M1U M1F M1S M1P M1D M1Y M1G M2U M3C M3B M3H C1U C2U C3U C4U C5U C7U C8U A1F B2F B4C B4B B4H 21B 21H 22U 23U 24S 24P 24Y 25S 25P 25Y 26U 26F 27S 27P 27Y 28S 28P 28Y 29A 29T 31U 31F 32U 32F 33U 33F 34S 34P 34Y 35S 35P 35Y D2U D2F D3U D3F D3S D3P D3Y D4U D4F D5U D5F 91A 91T F7S F7P F7Y F7A F7B F7H F8S F8P F8Y F9U F9F F9S F9P F9L F9D F9Y F9G F9M F9A F9Q F9T F9C F9B F9H F9V F9K F9R F9E F9J FAU FAS FAP FAY FBC J2U J2F J3S J3P J3Y J4U J4S J4P J4Y K1G P1U P1F P1S P1P P1L P1D P1Y P1G P1M P1A P1Q P1T P1C P1B P1H P1V P1K P1R P1E P1J P2M P2A P2Q P2T P2V P2K P2J P3C CTO A1U A2S A2P A2D A2Y A2A A2T A2B A2H A3Q A4U A4F A4S A5C B1S B1P B1Y B2U B3G 41A 41T 51Q 51B 51H 52Q 53S 53P 53Y 54S 54P 54Y 55S 55P 55Y 61Q 62S 62P 62Y 63S 63P 63Y 64C D1U D1F D1G D2A D2T D3Q D4Q D5U D5S D5P D5Y G1A G1T G2Q G3U G3F H1S H1P H1Y J1G ADD Q1U Q1F Q2U Q2F Q2S Q2P Q2L Q2D Q2Y Q2G Q2M Q2A Q2Q Q2T Q2C Q2B Q2H Q2V Q2K Q2R Q2E Q2J Q3C Q4C A6U A6F A6S 56S 56P 56Y 57S 57P 57Y 65C 65B 65H FDU FDF FDS FDP FDL FDD FDY FDG FDM FDA FDQ FDT FDC FDB FDH FDV FDK FDR FDE FDJ J6U J6F J7G P8U P8F P8S P8P P8L P8D P8Y P8G P8M P8A P8Q P8T P8C P8B P8H P8V P8K P8R P8E P8J M6M 6A M6Q M6T M6C M6B M6H M6V M6K M6R Q1U Q1F Q2U Q2F Q2S Q2P Q2L Q2D Q2Y Q2G Q2M Q2A Q2Q Q2T Q2C Q2B Q2H Q2V Q2K Q2R Q2E Q2J Q3C Q4C Q5C Q6B Q6H Q7G) 12 Fan, Rear w/ grommets & Grill (all models) 13 Power supply (300W) (models CTO) 13 Power supply (230W) (models J2U J2F J3S J3P J3Y J4U J4S J4P J4Y K1G P1U P1F P1S P1P P1L P1D P1Y P1G P1M P1A P1T P1V P1K P1R P1E P1J P2M P2A P2T P2V P2K P2J M1U M1F M1S M1P M1D M1Y M1G M2U C1U C2U C3U C4U C5U C7U CTO A1U A2S A2P A2D A2Y A2A A2T A4U A4F A4S B1S B1P B1Y B2U B3G 41A 41T 53S 53P 53Y 54S 54P 54Y 55S 55P 55Y 62S 62P 62Y 63S 63P 63Y D1U D1F D1G D2A D2T D5U D5S D5P D5Y G1A G1T G3U G3F H1S H1P H1Y J1G A1F B2F 22U 23U 24S 24P 24Y 25S 25P 25Y 26U 26F 27S 27P 27Y 28S 28P 28Y 29A 29T 31U 31F 32U 32F 33U 33F 34S 34P 34Y 35S 35P 35Y D2U D2F D3U D3F D3S D3P D3Y D4U D4F D5U D5F 91A 91T F7S F7P F7Y F7A F8S F8P F8Y F9U F9F F9S F9P F9L F9D F9Y F9G F9M F9A F9T F9V F9K F9R F9E F9J FAU FAS FAP FAY) 13 Power supply (250W) (models J2U J2F J3S J3P J3Y J4U J4S J4P J4Y K1G P1U P1F P1S P1P P1L P1D P1Y P1G P1M P1A P1T P1V P1K P1R P1E P1J P2M P2A P2T P2V P2K P2J M1U M1F M1S M1P M1D M1Y M1G M2U C1U C2U C3U C4U C5U C7U CTO A1U A2S A2P A2D A2Y A2A A2T A4U A4F A4S B1S B1P B1Y B2U B3G 41A 41T 53S 53P 53Y 54S 54P 54Y 55S 55P 55Y 62S 62P 62Y 63S 63P 63Y D1U D1F D1G D2A D2T D5U D5S D5P D5Y G1A G1T G3U G3F H1S H1P H1Y J1G A1F B2F 22U 23U 24S 24P 24Y 25S 25P 25Y 26U 26F 27S 27P 27Y 28S 28P 28Y 29A 29T 31U 31F 32U 32F 33U 33F 34S 34P 34Y 35S 35P 35Y D2U D2F D3U D3F D3S D3P D3Y D4U D4F D5U D5F 91A 91T F7S F7P F7Y F7A F8S F8P F8Y F9U F9F F9S F9P F9L F9D F9Y F9G F9M F9A F9T F9V F9K F9R F9E F9J FAU FAS FAP FAY) 13 Power supply (220V/250W/ATX12V - China) (models CTO A2B A2H A3Q A5C 51Q 51B 51H 52Q 61Q 64C D3Q D4Q G2Q B4C B4B B4H 21B 21H F7B F7H F9Q F9C F9B F9H FBC P1Q P1C P1B P1H P2Q P3C M3C M3B M3H) 13 Power Supply 5281-7VW-ROHS, 280W, Standard (models CTO) 13 Power Supply 5281-7VW-ROHS, 280W, Standard (models CTO) 13 Power Supply 310W standard only for Japan (models CTO) FRU# 45R7728 41N8079 41N3489 41N3094 41N3127 41N3485 41N3479 41N3482 24R2596 CRU Tier N 2 2 2 2 2 2 2 2 RoHS? Y Y Y Y Y Y Y Y Y Chapter 10. FRU lists 597

Section	Page
Contents	5
Chapter 1. About this manual	7
Important Safety Information	7
Important information about replacing RoHS compliant FRUs	8
Chapter 2. Safety information	9
General safety	9
Electrical safety	9
Safety inspection guide	11
Handling electrostatic discharge-sensitive devices	12
Grounding requirements	12
Safety notices (multi-lingual translations)	13
Chapter 3. General information	43
The ThinkVantage™ Productivity Center program	43
Additional information resources	43
Specifications	44
Types 8700, 8701, 8705, 8717, 8973, 8975, 8979, 8983, 8985, 8991, 8995, 9265, 9269, 9277, 9279, 9283, 9287, 9379, 9383, 9387,	44
Types 8013, 8702, 8706, 8716, 8970, 8972, 8976, 8980, 8982, 8986, 8992, 8994, 9266, 9276, 9278, 9282, 9286, 9288, 9374, 9378,	45
Chapter 4. General Checkout	47
Problem determination tips	47
Chapter 5. Diagnostics	49
PC-Doctor for Windows	49
PC-Doctor for DOS	49
Creating a diagnostic CD image	50
Creating diagnostic diskettes	50
Running diagnostics from the CD or diskettes	50
Running diagnostics from the Rescue and Recovery workspace	51
PC-Doctor for Windows PE	51
Running diagnostics from the Rescue and Recovery workspace	51
Navigating through the diagnostics programs	52
Running tests	52
Test results	52
Fixed disk advanced test (FDAT)	53
Quick and Full erase - hard drive	54
Viewing the test log	55
Chapter 6. Using the Setup Utility	57
Starting the Setup Utility program	57
Viewing and changing settings	57
Using passwords	57
User Password	57
Setting, changing, and deleting a user password	57
Administrator Password	58
Setting, changing, and deleting an administrator password	58
Selecting a startup device	59
Selecting a temporary startup device	59
Changing the startup device sequence	59
Exiting from the Setup Utility program	59
Chapter 7. Symptom-to-FRU Index	61
Hard disk drive boot error	61
Power Supply Problems	61
Diagnostic error codes	63
Beep symptoms	84
POST error codes	85
Miscellaneous error messages	87
Undetermined problems	88
Chapter 8. Replacing FRUs (desktop computers)	91
Rear connectors	92
Removing the cover	93
Locations	94
Identifying parts on the system board	95
Machine types 8013, 8716, 8976, 8986, 9266, 9282, 9374, 9384, 9646, and 9647	95
Machine types 8706, 8972, 8982, 8994, 9278, 9288, 9380, 9632, 9648, and 9649	96
Machine types 8702, 8970, 8980, 8992, 9276, 9286, 9378, and 9628	97
Replacing a memory module	97
Replacing the CMOS battery	100
Replacing the power supply	100
Replacing the system board	103
Types 8702, 8706, 8970, 8972, 8980, 8982, 8992, 8994, 9276, 9278, 9286, 9288, 9378, 9380, 9628, 9632, and 9649	103
Types 8013, 8716, 8976, 8986, 9266, 9282, 9374, 9384, and 9647	107
Replacing the microprocessor	111
Types 8702, 8706, 8970, 8972, 8980, 8982, 8992, 8994, 9276, 9278, 9286, 9288, 9378, 9380, 9628, 9632, and 9649	111
Types 8013, 8716, 8976, 8986, 9266, 9282, 9374, 9384, and 9647	114
Replacing the hard disk drive	118
Replacing an optical drive	121
Replacing the diskette drive	123
Replacing the power switch/LED assembly	125
Replacing the front panel card	127
Replacing the system fan assembly	128
Replacing a PCI adapter	130
Completing the FRU replacement	130
Chapter 9. Replacing FRUs (tower computers)	133
Rear connectors	134
Removing the cover	135
Locations	136
Identifying parts on the system board	136
Machine types 8700, 8717, 8979, 8991, 9269, 9283, 9383, 9631, and 9646	137
Machine types 8705, 8975, 8985, 9265, 9279, 9379, 9389, 9637, and 9648	138
Machine types 8701, 8973, 8983, 8995, 9277, 9287, 9387, and 9635	139
Removing and replacing the front bezel	139
Replacing the power supply	140
Replacing the system board	141
Types 8701, 8705, 8973, 8975, 8983, 8985, 8995, 9265, 9277, 9279, 9287, 9379, 9387, 9389, 9635, 9637, and 9648	141
Types 8700, 8717, 8979, 8991, 9269, 9283, 9383, 9631, and 9646	146
Replacing the microprocessor	149
Types 8701, 8705, 8973, 8975, 8983, 8985, 8995, 9265, 9277, 9279, 9287, 9379, 9387, 9389, 9635, 9637, and 9648	149
Types 8700, 8717, 8979, 8991, 9269, 9283, 9383, 9631, and 9646	153
Replacing a memory module	157
Replacing a PCI adapter	158
Replacing the hard disk drive	159
Replacing an optical drive	162
Replacing the diskette drive	163
Replacing the system fan assembly	163
Replacing the front audio/USB assembly	165
Replacing the power switch/LED assembly	165
Replacing the CMOS battery	165
Completing the FRU replacement	166
Chapter 10. FRU lists	167
Machine Type 8013	167
Machine Type 8700	175
Machine Type 8701	185
Machine Type 8702	195
Machine Type 8705	205
Machine Type 8706	217
Machine Type 8970	227
Machine Type 8972	236
Machine Type 8973	245
Machine Type 8975	254
Machine Type 8976	263
Machine Type 8979	270
Machine Type 8980	279
Machine Type 8982	288
Machine Type 8983	298
Machine Type 8985	307
Machine Type 8986	317
Machine Type 8991	325
Machine Type 8992	335
Machine Type 8994	345
Machine Type 8995	356
Machine Type 9265	365
Machine Type 9266	376
Machine Type 9269	385
Machine Type 9276	395
Machine Type 9277	403
Machine Type 9278	412
Machine Type 9279	423
Machine Type 9282	433
Machine Type 9283	441
Machine Type 9286	450
Machine Type 9287	458
Machine Type 9288	467
Machine Type 9374	476
Machine Type 9378	486
Machine Type 9379	495
Machine Type 9380	504
Machine Type 9383	513
Machine Type 9384	522
Machine Type 9387	534
Machine Type 9389	543
Machine Type 9628	553
Machine Type 9631	562
Machine Type 9632	573
Machine Type 9635	586
Machine Type 9637	596
Chapter 11. Additional Service Information	611
Security features	611
Hardware controlled Passwords	611
Operating system password	611
Vital product data	611
Management Information Format (MIF)	611
BIOS levels	612
Flash update procedures	612
Updating (flashing) BIOS from a diskette	612
Recovering from a POST/BIOS update failure	612
Power management	613
Automatic configuration and power interface (ACPI) BIOS	613
Automatic Power-On features	613
Appendix. Notices	615
Television output notice	616

Match case Limit results 1 per page

Item

9637 FRUs

FRU#

CRU

Tier

RoHS?

System board, 946GZ (models M1U M1F M1S M1P M1D M1Y M1G M2U

M3C M3B M3H C1U C2U C3U C4U C5U C7U C8U A1F B2F B4C B4B B4H

21B 21H 22U 23U 24S 24P 24Y 25S 25P 25Y 26U 26F 27S 27P 27Y 28S 28P

28Y 29A 29T 31U 31F 32U 32F 33U 33F 34S 34P 34Y 35S 35P 35Y D2U D2F

D3U D3F D3S D3P D3Y D4U D4F D5U D5F 91A 91T F7S F7P F7Y F7A F7B

F7H F8S F8P F8Y F9U F9F F9S F9P F9L F9D F9Y F9G F9M F9A F9Q F9T

F9C F9B F9H F9V F9K F9R F9E F9J FAU FAS FAP FAY FBC J2U J2F J3S

J3P J3Y J4U J4S J4P J4Y K1G P1U P1F P1S P1P P1L P1D P1Y P1G P1M

P1A P1Q P1T P1C P1B P1H P1V P1K P1R P1E P1J P2M P2A P2Q P2T P2V

P2K P2J P3C CTO A1U A2S A2P A2D A2Y A2A A2T A2B A2H A3Q A4U

A4F A4S A5C B1S B1P B1Y B2U B3G 41A 41T 51Q 51B 51H 52Q 53S 53P

53Y 54S 54P 54Y 55S 55P 55Y 61Q 62S 62P 62Y 63S 63P 63Y 64C D1U D1F

D1G D2A D2T D3Q D4Q D5U D5S D5P D5Y G1A G1T G2Q G3U G3F H1S

H1P H1Y J1G ADD Q1U Q1F Q2U Q2F Q2S Q2P Q2L Q2D Q2Y Q2G

Q2M Q2A Q2Q Q2T Q2C Q2B Q2H Q2V Q2K Q2R Q2E Q2J Q3C Q4C

A6U A6F A6S 56S 56P 56Y 57S 57P 57Y 65C 65B 65H FDU FDF FDS FDP

FDL FDD FDY FDG FDM FDA FDQ FDT FDC FDB FDH FDV FDK FDR

FDE FDJ J6U J6F J7G P8U P8F P8S P8P P8L P8D P8Y P8G P8M P8A P8Q

P8T P8C P8B P8H P8V P8K P8R P8E P8J M6M 6A M6Q M6T M6C M6B

M6H M6V M6K M6R Q1U Q1F Q2U Q2F Q2S Q2P Q2L Q2D Q2Y Q2G

Q2M Q2A Q2Q Q2T Q2C Q2B Q2H Q2V Q2K Q2R Q2E Q2J Q3C Q4C

Q5C Q6B Q6H Q7G)

45R7728

Fan, Rear w/ grommets & Grill (all models)

41N8079

Power supply (300W) (models CTO)

41N3489

Power supply (230W) (models J2U J2F J3S J3P J3Y J4U J4S J4P J4Y K1G

P1U P1F P1S P1P P1L P1D P1Y P1G P1M P1A P1T P1V P1K P1R P1E P1J

P2M P2A P2T P2V P2K P2J M1U M1F M1S M1P M1D M1Y M1G M2U

C1U C2U C3U C4U C5U C7U CTO A1U A2S A2P A2D A2Y A2A A2T A4U

A4F A4S B1S B1P B1Y B2U B3G 41A 41T 53S 53P 53Y 54S 54P 54Y 55S 55P

55Y 62S 62P 62Y 63S 63P 63Y D1U D1F D1G D2A D2T D5U D5S D5P D5Y

G1A G1T G3U G3F H1S H1P H1Y J1G A1F B2F 22U 23U 24S 24P 24Y 25S

25P 25Y 26U 26F 27S 27P 27Y 28S 28P 28Y 29A 29T 31U 31F 32U 32F 33U

33F 34S 34P 34Y 35S 35P 35Y D2U D2F D3U D3F D3S D3P D3Y D4U D4F

D5U D5F 91A 91T F7S F7P F7Y F7A F8S F8P F8Y F9U F9F F9S F9P F9L

F9D F9Y F9G F9M F9AF9T F9V F9K F9R F9E F9J FAU FAS FAP FAY)

41N3094

Power supply (250W) (models J2U J2F J3S J3P J3Y J4U J4S J4P J4Y K1G

P1U P1F P1S P1P P1L P1D P1Y P1G P1M P1A P1T P1V P1K P1R P1E P1J

P2M P2A P2T P2V P2K P2J M1U M1F M1S M1P M1D M1Y M1G M2U

C1U C2U C3U C4U C5U C7U CTO A1U A2S A2P A2D A2Y A2A A2T A4U

A4F A4S B1S B1P B1Y B2U B3G 41A 41T 53S 53P 53Y 54S 54P 54Y 55S 55P

55Y 62S 62P 62Y 63S 63P 63Y D1U D1F D1G D2A D2T D5U D5S D5P D5Y

G1A G1T G3U G3F H1S H1P H1Y J1G A1F B2F 22U 23U 24S 24P 24Y 25S

25P 25Y 26U 26F 27S 27P 27Y 28S 28P 28Y 29A 29T 31U 31F 32U 32F 33U

33F 34S 34P 34Y 35S 35P 35Y D2U D2F D3U D3F D3S D3P D3Y D4U D4F

D5U D5F 91A 91T F7S F7P F7Y F7A F8S F8P F8Y F9U F9F F9S F9P F9L

F9D F9Y F9G F9M F9AF9T F9V F9K F9R F9E F9J FAU FAS FAP FAY)

41N3127

Power supply (220V/250W/ATX12V - China) (models CTO A2B A2H A3Q

A5C 51Q 51B 51H 52Q 61Q 64C D3Q D4Q G2Q B4C B4B B4H 21B 21H

F7B F7H F9Q F9C F9B F9H FBC P1Q P1C P1B P1H P2Q P3C M3C M3B

M3H)

41N3485

Power Supply 5281-7VW-ROHS, 280W, Standard (models CTO)

41N3479

Power Supply 5281-7VW-ROHS, 280W, Standard (models CTO)

41N3482

Power Supply 310W standard only for Japan (models CTO)

24R2596

Chapter 10. FRU lists

597