Table 5. View 2 parts listing, Type 7985 and 7943 (continued)Index DescriptionCRU partnumber(Tier 1)CRU partnumber(Tier 2)FRU partnumberCable, front panel USB (all models) 39M6763Cable, external SAS (optional) 41Y0485Cable, USB tape (optional) 39M6781Cable, tape power (optional) 39M6797Cable, tape power/SATA (optional) 40K6558CD drive, 24x (optional) 26K5427CD drive, slim ultrabay enhanced (optional) 42C0963CD-RW/DVD drive, ultra slim combo(optional)43W4587Chassis assembly (all models) 40K7459DVD drive retention clip part of40K7563DVD drive filler 41Y8740DVD drive, slim ultrabay enhanced rambo 5(optional)42C0955DVD drive, slim ultrabay enhanced rambo 5(optional)42C0959E fiber SR server adapter, 10 GB (optional) 30R5009Hard disk drive, 36 GB 10K (optional) 39R7364Hard disk drive, 63 GB 15K (optional) 39R7346Hard disk drive, 73 GB 10K (optional) 39R7340Hard disk drive, 73 GB 10K (optional) 39R7366Hard disk drive, 73 GB 15K (optional) 39R7348Hard disk drive, 146 GB 10K (optional) 39R7350Hard disk drive, 300 GB 10K (optional) 39R7344Hard disk drive, 500 GB (optional) 39M4533Hard disk drive, 750 GB (optional) 43W7579Hard disk drive, 73.4 GB (optional) 43X0839Hard disk drive, 146.8 GB (optional) 43X0825Hard disk drive, 300 GB (optional) 43X0805Hard disk drive carrier, 3.5 inch (optional) 44E8850Havana 3U SCSI adapter (optional) 43W4325HCA 400Ex-D, x8 PCI-E dual 4x DDRadapter (optional)42D3729iSCSI SX server adapter (optional) 30R5509iSCSI TX server adapter (optional) 30R5209Kit, misc. (all models) 40K7563Kit, misc., label, (all models) 40K7564Kit, cable management arm (all models) 40K6556Kit, tape enablement 40K644998 IBM System x3655 Type 7985 and 7943: Problem Determination and Service Guide