Figure 1-13 - HP Visualize J5000 Supplementary Manual

Figure 1-13. Internal Components on the Left Side of the J7xxx
J7xxx
system board
Four PA-RISC
microprocessors
with turbocoolers
Sixteen memory slots
System Board
The system boards in the J5xxx and J7xxx contain the PA-RISC microprocessors and
memory slots, as well as connectors to other components. Each system board is mounted on
a tray, which has a handle. The system board tray assembly is then attached to the
workstation by sheet metal hooks in the center wall of the chassis.
Over the center wall of the chassis, the system board is attached to the workstation's I/O
board by a flex cable and to the power supply by gold plated bus bars. In addition, the
system board has connections to the system board fans, which are also located on the left
side of the workstation, and to the power switch/LCD assembly, which is on the front panel
of the workstation.
Microprocessors: You can determine which workstation model it is by counting the
microprocessors on the system board. Each microprocessor is cooled by a "turbocooler,"
which consists of a cylindrical heat sink and an integrated fan. The J5xxx has two of these
turbocoolers; thus, it has two PA-RISC microprocessors. The J7xxx has four turbocoolers;
thus, it has four PA-RISC microprocessors.
Memory Slots: The J5xxx and J7xxx workstations also differ in the number of memory
slots each has on their system boards, as well as how the slots can be loaded with memory
DIMMs. The J5xxx has eight memory slots, and memory DIMMs can be installed
individually in this workstation. In contrast, the J7xxx has sixteen memory slots, and
memory DIMMs must be installed in pairs of equal size in it.
For more information about the sizes of memory DIMMs each workstation supports, as
well as the DIMM loading order for each, see the configuration section for in Chapter 2.
Chapter 1
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Product Information
Internal Components
DC/DC
converter
unit
Three
system board
cooling fans
DC/DC
converter
unit
31