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Chapter 3
Configuration and Default Settings
3-12
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CPU Bus Factor
All Pentium II CPUs are supported as of the release date of this document.
The jumper settings in Figure 3-8 are provided to allow the user to upgrade
as newer CPUs enter the market. Contact National Instruments for jumper
settings as new CPUs are released.
Figure 3-8.
CPU Bus Factor Jumper Settings
Flash Protection
The VXIpc 870 Series uses a standard 2M bit flash with write protection.
Under normal use, this jumper should not be changed. Figure 3-9 shows
default and disabled settings.
Figure 3-9.
Flash Protection Settings
CPU
Speed
300 MHz
W7
W7
W3
W1
x3
Bus
Factor
W5
W3
350 MHz
x3.5
W7
W3
450 MHz
x4.5
(default)
W7
W7
W5
W5
W3
250 MHz
x2.5
W5
W5
W3
W1
W1
W1
W5
W1
W7
W1
400 MHz
x4
500 MHz
x5
W3
a. Flash Write
Enabled (Default)
b. Flash Write
Disabled
W8
W8