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HP Z420 Workstation system cabling
See
HP Z420 Workstation system board components on page 19 to determine the location of system
board connectors.
Cable To
Cable designator on system
board
PSU cable PCA (Main PWR) P1
PSU cable PCA (PWR MEM) P2
PSU cable First hard drive (Bay 6) D1
PSU cable Second hard drive (Bay 5) D2
PSU cable Third hard drive (Bay 4) D3
PSU cable First optical drive (Bay 1) D4
PSU cable Second optical drive (Bay 2) D5
PSU cable Other drive (Bay 3) D6
PSU cable First graphics card G1
PSU cable Second graphics card G2
Speaker PCA P6 (SPKR) white
Cooler fan cable PCA P8 (CPU0 FAN) white
System fan cable PCA P95 (REAR FAN) white
Memory fan cable PCAx P92 (MEM FAN) white
Front audio cable * PCA P28 (FRONT AUD) black
Front 1394 cable PCA J12 1394,White
LED/Power button cable PCA P5 (PB/LED) black
Front USB 3.0 cable PCA P29 (USB 3.0) blue
Front USB 2.0 cable PCA P27 (FRONT USB 2.0) yellow
Media card reader PCA P24 (USB2) blue
Front fan cable PCA P9 (FRNTFAN) white
Second serial port PCA P52 (COM) black
Chassis solenoid lock PCA P124 (SOL_LOCK) black
Chassis Intrusion Sender PCA P125 (I_SENSE) white
* If an audio card is installed, connect the front audio cable to the audio card connector.
112 Chapter 3 Component Replacement Information and Guidelines