HP Z400 - Workstation

CPU fan Pin Signal
1 GND
2 +12V
3 TACH1
4 PWM
5TACH2
FDD Pin Signal Pin Signal
1 Ground 18 FLP_DIR#
2 FLP_LOWDEN# 19 Ground
3 Tach 20 FLP_STEP#
4 FLP_WDO 21 Ground
5 MT 22 FLP_STEP#
6 Unused 23 Ground
7 Ground 24 FLP_WRTEN#
8 FLP_INDEX# 25 Ground
9 Ground 26 FLP_TRACK#
10 FLP_MOTOR# 27 Ground
11 Ground 28 FLP_WP#
12 Unused 29 Ground
13 Ground 30 FLP_RD_D#
14 FLP_SEL_A# 31 Ground
15 Ground 32 FLP_HD_SEL#
16 Unused 33 Ground
17 Ground 34 FLP_DSKCHG#
ENWW 197