HP xw4400 Service And Technical Reference Guide

6-Pin power (auxiliary system board) connector P8 Pin Color Signal
46
3
1
1 BLK w/ORG +3.3V
2 BLK w/ORG +3.3V
3 YEL +12V-A
4 BLK GND
5 BLK GND
6 YEL -12V
8-Pin power (for CPUs and memory) P3 Pin Color Signal
58
4
1
1 BLK GND
2 BLK GND
3 BLK GND
4 BLK GND
5 WHT +12VCPU0
WHT +12VCPU0 RSENSE
6 WHT +12VCPU0
7 WHT
with
stripe
+12VCPU1
8WHT
with
stripe
+12VCPU1
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 the section “PCI or PCI Express Installation.”
NOTE The 6-pin power (auxiliary PCI Express) is only required with high-powered graphics
cards.
ENWW Connector pin descriptions 165

HP xw4400 Specifications

General

Processor	Intel Core 2 Duo
Chipset	Intel 975X
Memory	Up to 8 GB DDR2
Storage	SATA 3.0 Gb/s
Graphics	NVIDIA Quadro FX series
Operating System	Windows XP Professional
Expansion Slots	1 PCI Express x16, 1 PCI Express x1, 3 PCI
Ports	6 USB 2.0, 2 PS/2, 1 serial, 1 parallel, 1 RJ-45
Optical Drive	DVD-ROM