Intel 430TX - Manual (Page 58)

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JP5 : Set CPU External Bus Frequency Selection (FS0, FS1)
JP5: 1-3/2-4 SHORT: 55Mhz
for CX133
+
JP5: 1-3 SHORT : 60Mhz for
CX 150
+,
Intel/AMD
90/120/150/180Mhz
JP5:OPEN : 66 Mhz for CX
166
+
, AMD K6, MMX.
Intel/AMD
100/133/166/200/233Mhz
(Default)
JP5: 2-4 SHORT : 75Mhz for CX 200
+
4.3 Other Hardware Jumpers
JP7 : Set the CPU Type
à OPEN for P55C, Intel MMX, AMD K6, CYRIX 6x86L.
Default. 2.8v
à 1-2, 3-4 SHORT indicates Intel P54C, AMD K5 and
CYRIX. 3.3v only
JP4 : Select FLASH BIOS
1-2 SHORT for 12v Flash BIOS (set by factory)
2-3 SHORT for 5v Flash BIOS (normal). Default.
JP6 : Choose Power Supply
SHORT: AT style power supply. Default.
OPEN: ATX style power supply