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Bcache Size Jumpers (CF1 and CF2)
Figure 3–1 AlphaPC 164LX Configuration Jumpers
J27 System Configuration Jumpers
1
IRQ3
3
IRQ2
5
IRQ1
7
IRQ0
9
CF0
11
CF1
13
CF2
15
CF3
17
CF4
19
CF5
21
CF6
23
CF7
25
J28 Flash ROM Update Jumper
1
1 to 2 In = Disable
2
2 to 3 In = Enable (Default)
3
AlphaPC 164LX Jumper Configuration
3–2
Frequency
Ratio IRQ3 IRQ2 IRQ1 IRQ0 Comments
466 MHz
7
533 MHz
8
600 MHz
9
Reserved (Default Out)
Bcache Size
CF1
2MB
Out
4MB
Out
Password Bypass
Reserved (Default Out)
Reserved (Default Out)
Reserved (Default Out)
Boot_Option (Default Out)
Not Used
In
Out
Out
Out
Out
In
In
In
Out
In
In
Out
All other combinations
Reserved
CF2
Comments
Out
Default
In
Default
FM-05931.AI4
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