Lenovo ThinkCentre E50 Hardware Maintenance Manual page 274

Item
#
9 System board, SiS 661FX - Intel based - RoHS (models A4M A4A A4Q A4T
A4C A4B A4H A4V A4K A4J A5J A6M A6A A6Q A6T A6C A6B A6H A6V
A6K A6J A7M A7A A7Q A7T A7C A7B A7H A7V A7K A7J A9S A9L A9D
AAU AAF ABG 31S 31L 31D 32S 32L 32D 33U 33F 33S 33D D4S D4L D4D
74G D7C D7B D7H D8C D8B D8H A9Y 31Y 32Y 33Y D4Y A9P 32P ACP
ACY D9P D9Y ADJ 26G 34J 35P DAS DAY DBP 51A 51T 51J 52J 53J 54M
55M DCS DCY DDS DDP DDY DES DEP DEY DFY 77G 78G 21S 21P 21L
21D 21Y 21M 21A 21Q 21T 21C 21B 21H 21V 21K 21J 23M 23A 23Q 23T
23C 23B 23H 23V 23K 23J 25M 25A 25Q 25T 25C 25B 25H 25V 25K 25J
D3M D3A D3Q D3T D3C D3B D3H D3V D3K D3J D4M D4A D4Q D4T
D4C D4B D4H D4V D4K D4J D5M D5A D5Q D5T D5C D5B D5H D5V
D5K D5J D6M D6A D6Q D6T D6C D6B D6H D6V D6K D6J)
Note: When ordering a system board, you must also order a retention
bracket kit for the heat sink and fan assembly.
10 180W power supply (non-smokeless) (models A4M A4A A4Q A4T A4C
A4B A4H A4V A4K A6M A6A A6Q A6T A6C A6B A6H A6V A6K A7M
A7A A7Q A7T A7C A7B A7H A7V A7K A9S A9L A9D AAU AAF ABG 31S
31L 31D 32S 32L 32D 33U 33F 33S 33D D4S D4L D4D 74G D7C D7B D7H
D8C D8B D8H A9Y 31Y 32Y 33Y D4Y A9P ACP ACY 32P D9P D9Y 26G
35P DAS DAY DBP 51A 51T 54M 55M DCS DCY DDS DDP DDY DES
DEP DEY DFY 77G 78G 21S 21P 21L 21D 21Y 21M 21A 21Q 21T 21C 21B
21H 21V 21K 23M 23A 23Q 23T 23C 23B 23H 23V 23K 25M 25A 25Q 25T
25C 25B 25H 25V 25K D3M D3A D3Q D3T D3C D3B D3H D3V D3K D4M
D4A D4Q D4T D4C D4B D4H D4V D4K D5M D5A D5Q D5T D5C D5B
D5H D5V D5K D6M D6A D6Q D6T D6C D6B D6H D6V D6K)
10 180W power supply (smokeless - Japanese) (models A4J A5J A6J A7J 21J
23J 25J D3J D4J D5J D6J ADJ 34J 51J 52J 53J)
The FRUs listed in the following table are not illustrated.
Shield, EMC, 5.25in. drive bay (all models)
Cable, Serial-ATA, (18in. RoHs) (all models)
Shield, EMC, diskette drive bay (all models)
Cable, diskette drive (all models)
Cover (all models)
Chassis assembly (all models)
Bezel assembly, front (all models)
Fan duct assembly (all models)
Shield, EMC, system board (all models)
Miscellaneous hardware kit (all models)
Cable, optical drive signal (all models)
Miscellaneous hardware kit (all models)
Miscellaneous bezel kit (all models)
Interposer cables (all models)
Fan assembly, front (all models)
Retention bracket kit, heat sink and fan (all models)
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Hardware Maintenance Manual
8773 FRUs
8773 FRUs
CRU
FRU# Tier RoHS?
41X2041 N
41N3111 N
41N3114 N
CRU
FRU# Tier RoHS?
41A7162 N
41A7145 N
41A7146 N
41A7147 N
41A7148 2
41A7873 N
41A7150 N
41A7151 N
41N5329 N
41A7155 N
41A7158 N
41A7155 N
41A7160 N
41A7161 N
41A7198 N
41A7139 N
Y
Y
Y
Y
Y