Pci Express Device Disk Drive Power Connector; When To Use The Disk Drive Power Connector; Disk Drive Power Connector Installation - National Instruments DAQ X Series User Manual

Chapter 3 Connector and LED Information
Note (PCI Express X Series Devices)
+5 V power unless you use the disk drive power connector. Refer to the PCI Express
Device Disk Drive Power Connector section for more information.

PCI Express Device Disk Drive Power Connector

(NI PCIe-632x/634x/635x/636x Devices)
four-pin hard drive connector on PCI Express devices that, when connected,
increases the current the device can supply on the +5 V terminal.

When to Use the Disk Drive Power Connector

PCI Express X Series devices without the disk drive power connector
installed perform identically to other X Series devices for most applications
and with most accessories. For most applications, it is not necessary to
install the disk drive power connector.
However, you should install the disk drive power connector in either of the
following situations:
•
•
Refer to the specifications document for your device for more information
about PCI Express power requirements and current limits.

Disk Drive Power Connector Installation

Before installing the disk drive power connector, you must install and set
up the PCI Express X Series device as described in the DAQ Getting
Started guides. Complete the following steps to install the disk drive power
connector.
1.
2.
3.
The power available on the disk drive power connectors in a computer can vary. For
Note
example, consider using a disk drive power connector that is not in the same power chain
as the hard drive.
X Series User Manual
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
PCI Express X Series devices supply less than 1 A of
You need more power than listed in the device specifications
You are using an SCC accessory without an external power supply,
such as the SC-2345
Power off and unplug the computer.
Remove the computer cover.
Attach the PC disk drive power connector to the disk drive power
connector on the device, as shown in Figure 3-1.
3-4
The disk drive power connector is a
ni.com