Jumper Settings - Casio SA-5000 Service Manual

5-4. Jumper Settings

Change the jumper settings for each type of CPU used according to the table below.
JP 486DX F P24C
8 2-3 2-3
9 Fit F Fit F
12 1-2 1-2
19 N-F N-F
23 N-F
36 1-2 3-4
37 3-4 3-4
38 3-4 3-4
39 N-F N-F
Fit = Fitted / N-F = Not Fitted / Default setting is marked by an AT-sign F /
JP9 Fitted for Write Thru, Not Fitted for Write Back / JP39 1-3 Fitted for 133 MHz
Select the clock frequencies according to the CPU speed according to the table below.
JP25
(S2)
Fit
Fit
Fit
Fit
CPU TYPE SETTING
P24D P24T
2-3 1-2
Fit F Fit F
2-3 2-3
2-3 N-F
Fit Fit Fit
3-4 3-4
3-4 3-4
3-4 3-4
5-6 N-F
CPU CLOCK SETTING
JP26
(S1)
Fit
Fit
Fit
Fit
— 18 —
AMD+
2-3
Fit
1-2
2-3
Fit
3-4
3-4
3-4
1-3, 5-6
JP27 CPU CLOCK
(S0) (MHz)
Fit 33.3
80
Fit 66.67
50
Fit 40
60
Fit 25
33.3 F
AMD 5x86
2-3
Fit
1-2
2-3
Fit
1-2
3-4
3-4
1-3, 5-6
:default
CPU CLOCK/2
(MHz)
16.65
40
33.3
25
20
30
12.5
16.65 F
:default