Cable Cover (Optional); Attaching The Cable Cover - Dell OptiPlex 745 User Manual

1 fan shroud/ heat sink assembly 4 hard drive
2 speaker (optional)
3 memory modules (2)
System Board Components
1 fan connector (FAN_FRONT)
2 internal speaker connector (INT_SPKR) 9
3 system board speaker (BEEP)
4 channel B memory connector (DIMM_2) 11 fan connector (FAN_REAR)
5 channel A memory connector (DIMM_1) 12 intrusion switch connector (INTRUDER)
6 SATA data cable connector(SATA0)
7 battery (BATT)

Cable Cover (Optional)

Attaching the Cable Cover

5 security cable slot
6 chassis intrusion switch
8 clear CMOS jumper (RTCRST)
password jumper (PSWD)
10 hard-drive power connector (SATA_PWR)
13 processor (CPU)