HP LH4r HP Netserver LXr 8500 Installation Guide - Page 87

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Chapter 7 Terminators (CPU + Term (+ 4 on right) = 8) 1 Processor Module (min) Installing Additional Processors Cache Coherency Filters (Installed on 4-way) Right Processor Carrier Board Processor Cage Processor Tray Left Processor Carrier Board LCD Display Front Panel Board Processor Baseboard J6A1 Jumper Block Figure 7-2. 4-Way Configuration (Standard) NOTE Figures 7-2 through 7-10 show the Processor Tray and its Processor Cage Covers removed for clarity. 8-Way Configuration The 8-way configuration uses both left and right processor carrier boards for its processor module minimum (5), and requires both cache coherency filters. See Figure 7-3. The cache coherency filters are used effectively when five or more processor modules are installed. The cache coherency filters increase the effective speed of the processors by minimizing the need for processors on one bus (processor carrier) to snoop the caches of processors on the other bus. 79

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Chapter 7
Installing Additional Processors
79
Cache Coherency
Filters (Installed
on 4-way)
Processor Tray
Left Processor
Carrier Board
Processor Baseboard
Processor Cage
LCD Display
Front Panel
Board
1 Processor
Module (min)
Terminators
(CPU + Term (+ 4 on right) = 8)
J6A1 Jumper
Block
Right Processor
Carrier Board
Figure 7-2. 4-Way Configuration (Standard)
NOTE
Figures 7-2 through 7-10 show the Processor Tray and its
Processor Cage Covers removed for clarity.
8-Way Configuration
The 8-way configuration uses both left and right processor carrier boards for its
processor module minimum (5), and requires both cache coherency filters.
See Figure 7-3.
The cache coherency filters are used effectively when five or more processor
modules are installed. The cache coherency filters increase the effective speed of
the processors by minimizing the need for processors on one bus (processor
carrier) to snoop the caches of processors on the other bus.