Fujitsu D1271 Technical Manual page 22

3. HARDWARE SETUP
3) CPU External Frequency Selection (DIP_SW Switches 5–8)
This option tells the clock generator what frequency to send to the CPU, DRAM,
and the PCI bus. This allows the selection of the CPU's External frequency (or
BUS Clock). The BUS Clock multiplied by the Frequency Multiple equals the
CPU's Internal frequency (the advertised CPU speed).
CUV-LSV
CUV-LSV CPU External
Frequency Selection
WARNING! Set the CPUbus frequency to the recommended settings only.
Frequencies other than the recommended CPU bus frequencies are not guaranteed
stable. Overclocking the processor is not recommended. It may result in a slower
speed.
18
CPU 66MHz
PCI 33MHz
CPU 83MHz
PCI 42MHz
CPU 110MHz
PCI 36MHz
CPU 124MHz
PCI 31MHz
D1271 / D1291 CUV-LSV / CUV-LV User's Manual
68MHz 75MHz 80MHz
34MHz 37MHz 40MHz
100MHz 103MHz 105MHz
33MHz 34MHz 35MHz
112MHz 115MHz 120MHz
37MHz 38MHz 40MHz
133MHz 140MHz 150MHz
33MHz 35MHz 37MHz