Table 3-3 Frequency Setting - Silicon Graphics 230 User Manual

007-4263-001
Table 3-3 provides the frequency settings for the JPX1 jumper. JPX1 sets the ratio between
the front side bus (FSB) frequency and the CPU internal clock frequency. This
information is only required if installing a CPU other than the one supplied by SGI.
Table 3-3 Frequency setting
1 2 3
On On On
On On Off
On Off On
On Off Off
Off On On
Off On Off
Off Off On
Off Off Off
On On On
Note: This frequency setting table is for reference only and is reserved for use by
customer service technicians. The CPU frequency is automatically set and should not be
tampered with.
4 Frequency
On 2
On 2.5
On 3
On 3.5
On 4
On 4.5
On 5
On 5.5
Off 6
System Board Layout
65