Compaq AlphaServer DS20, Руководство по обслуживанию

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System Overview 1-23
Figure 1-12 shows the location of the switchpacks and Table 1-2 and Table 1-3
describe what each switch controls.
Table 1-2 Switchpack 2
Switch Description
1 Fail safe boot. Off (default) = normal boot. On = boot the fail safe booter
2 Reserved. Must be off.
3 Reserved. Must be off.
4 Reserved. Must be off.
5
6
7
Switches 5, 6, and 7 create a field that defines the speed at which the cross
bar switch runs. Switches 5 and 6 are on and switch 7 is off.
8 AlphaBIOS Password bypass: Off (default) = Normal operation;
On = Bypass AlphaBIOS password
Table 1-3 Switchpack 3
Switch Description
1 Reserved. Must be off.
2 Reserved. Must be off.
3 Reserved. Must be off.
4 Reserved. Must be on.
5 Reserved. Must be off.
6 Reserved. Must be off.
7 Reserved. Must be off.
8 Flash write protect: Off (default) = Write enable the flash ROM
On = Write disable the flash ROM