Grass Valley K2 Media Client Service Manual Nov.18 2008 - Manual (Page 27)

July 28, 2008 K2 Media Client Service Manual 27
Graphics board
Graphics board
This board provides enhanced performance for screen graphics and a connection for
a VGA monitor. The graphics board plugs into one of the standard PCI slots on the
motherboard.
Refer to “Graphics board removal” on page 121 for procedures.
SCSI controller adapter
This board provides the SCSI controller functionality for the internal RAID disks. On
internal storage models, both system and media data require this RAID controller
functionality, as both are stored on the internal RAID disks. On external storage
models, only the system data requires RAID controller functionality, as the media is
stored on the K2 Storage System or on direct-connect RAID storage. The SCSI
controller adapter plugs into one of the standard PCI slots on the motherboard.
Refer to “SCSI controller adapter removal” on page 123 for procedures.
SCSI interface board
This board provides the SCSI interface for the RAID drives. It monitors and reports
the status of the RAID drives, the chassis fans, and the power supplies. It also controls
the individual RAID status LEDs and the front panel Power and Service LEDs. It is
mounted horizontally in the front of the unit, above the RAID drives. It provides a
front panel USB connection.
Refer to “SCSI interface board removal” on page 110 for procedures.
SCSI backplane
This board provides the connection for each RAID drive. It is mounted in the center
of the unit.
Refer to “SCSI backplane removal” on page 117 for procedures.
CPU motherboard
The K2 Media Client uses an extended ATX motherboard with an Intel Xeon
processor. The motherboard provides PCI board slots, built in Gigabit Ethernet, and
USB ports. The Type I motherboard provides USB 1.1 ports. The Type II and Type
III motherboard provides USB 2.0 ports. It is located in the bottom rear of the K2
Media Client chassis.
Refer to “CPU motherboard replacement” on page 126 for procedures.