HP Xw6400 - Workstation - 4 GB RAM, Service And Technical Reference Manual

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ATA/ATAPI (IDE) standard drive cable connector
Pin Signal Pin Signal Pin Signal
1 2 3
4 5 Reset Ground
DD7 DD8 DD6 15 16
17 18
19 DD1 DD14 DD0
DD15 Ground 29 30
31 32
33 DMAK Ground INTRQ
IOCS16 DA1
6 7 8
9 10 DD9 DD5 DD10
DD4 DD11 20 21
22 23
24 (Key) DMARQ
Ground DIOW
Ground 34 35
36 37
38 PDIAG (cable detect) DA0
DA2 CS1FX CS3FX
11 12
13 14 DD3 DD12 DD2
DD13 25 26
27 28 DIOR Ground
IORDY CSEL 39 40 DASP Ground
24-Pin Main power connector P1
1 12
13 24
1 +3.3 V 8 POK 14 -12 VL 21 +5 V GND
2 +3.3 V 9 +5 Vaux 15 GND 22 +5 V and
3 GND 10 +12 V-B 16 PS_O
N_l +5 V-Rsense
4 +5 V 11 +12 V-A 17 GND 23 +5 V
5 GND 12 +3.3 V 18 GND 24 GND
6 +5 V 13 +3.3 V 19 GND
7 GND +3.3V-Rsense 20 GND
CAUTION Be sure you can differentiate between which power cable connects to the PCI
Express x16 graphics card and which power cable connects to the system board. These two
cables have different pin counts and different colors. The PCI Express power cable has a 6-pin
black connector, and the system board power cable has an 8-pin white connector. When power
is present, you must
never connect the PCI Express power cable to the system board. If you do
so, the system board may be damaged and your warranty voided. To see a picture of the PCI
Express cable and where it must be connected, see
PCI installation on page 79 “PCI or PCI
Express Installation.”
ENWW Connector pin descriptions 157