IBM 622138U - IntelliStation Z - Pro 6221, User Manual

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optional telephony and multimedia devices. USB 2.0 technology transfers data at up
to 480 megabits per second (Mbps) with a maximum of 127 external devices and a
maximum signal distance of 5 meters (16 ft) per segment (if the device that is
attached to the computer is a USB 2.0 device). If the computer has multiple USB
devices attached to it, the USB hub must be USB 2.0, otherwise, all USB 2.0
devices will transfer data at 12 Mbps. Using Plug and Play technology, USB devices
are configured automatically. The following illustration shows a USB connector.
1 4
Use a 4-pin USB cable to connect external devices to USB connectors.
If you connect a PS/2 (non-USB) keyboard to the keyboard connector, USB ports
and devices are disabled during power-on self-test (POST).
If you connect a USB keyboard that has a mouse port, the keyboard emulates a
mouse, and you cannot disable the mouse settings in the Configuration/Setup Utility
program.
Video connector
The Accelerated Graphics Port (AGP) adapter, which is in the AGP slot on the
system board, provides the video connector. This connector is on the rear of the
computer. Use the video connector to connect a monitor or other display. The
following illustrations show the different types of video connector that can come with
your computer.
Analog video connector :
This connector is on the Matrox DVI-I to dual VGA pigtail cable and on the NVIDIA
LFH-60 to dual VGA pigtail cable.
1 5
11 15
Digital (DVI-I) video connector:
This connector is on the Matrox Millennium G450, NVIDIA Quadro4 980XGL, and
3Dlabs Wildcat4 7110 video adapters.
1
C1 C2
C3
C5
C4
Low force helical-60 (LFH-60) video connector:
This connector is on the NVIDIA Quadro4 280NVS video adapter.
Some models come with a digital video interface (DVI) connector for connecting a
digital monitor. If you have problems viewing information with a second monitor, see
“Changing monitor settings” on page 15.
Chapter 4. Installing options
59