ICP Electronics JUKI- 745E, User Manual

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8
2.2 Setting the CPU of JUKI-745E
JP1:BUS Clock & CPU CORE/BUS Freq ratio setting
•
CPU Clock Setting :
S2
11-12
S1
9-10
S0
1-2
CPU/SDRQAM CLK
(MHZ)
PCI BUS CLK
(MHZ)
OFF OFF OFF 66.8 33.4
OFF OFF ON 60 30
OFF ON OFF 75 37.5
OFF ON ON 55 27.5
ON OFF OFF 68.5 34.25
ON OFF ON 83.3 33.3
ON ON OFF 75 30
ON ON ON 83.3 41.65
•
FREQ RATIO :
BF2
7-8
BF1
5-6
BF0
3-4
RATIO
OFF OFF OFF 1.5 x
OFF OFF ON 2.0x
OFF ON ON 2.5x
OFF ON OFF 3.0 x
OFF OFF OFF 3.5 x
ON OFF ON 4.0x
ON ON ON 4.5x
ON ON OFF 5.0x
ON OFF OFF 5.5x
CPU Frequency = CPU Clock x Multiplier for example
Pentium® 200MHz = 66MHz CPU Clock x 3
•
CPU Core Voltage Selection :
Please check the CPU Core Voltage before you install the CPU.
Currently, the new Intel MMX CPU utilizes dual voltages for core
and I/O, in other words, the I/O is 3.3V but the core is 2.8V.
This kind of CPU design will enhance the low power consumption
capability. Common type Pentium CPUs utilizes one voltage for
both I/O and Core namely, 3.3V,3.4V,or 3.5V.