Hardware Installation
the DIP SWITCH (SW1) selection to set up the CPU speed for 233 - 650MHz processor. The CPU speed must match with the frequency RATIO. It will cause system hanging up if the frequency RATIO is higher than CPU's.
| DIP SWITCH (SW) |
| FREQ. | EXT.CLK. | INT.CLK. | ||
|
|
|
|
|
| CPU Type | |
1 | 2 | 3 | 4 | RATIO | MHz | ||
MHz | |||||||
OFF | OFF | ON | ON | 3.5 | 66 | 233 | Pentium® II 233 MHz | |
(Celeron 233MHz) | ||||||||
|
|
|
|
|
|
| ||
ON | ON | OFF | ON | 4 | 66 | 266 | Pentium® II 266 MHz | |
(Celeron 266MHz) | ||||||||
|
|
|
|
|
|
| ||
OFF | ON | OFF | ON | 4.5 | 66 | 300 | Pentium® II 300 MHz | |
(Celeron 300MHz) | ||||||||
|
|
|
|
|
|
| ||
ON | OFF | OFF | ON | 5 | 66 | 333 | Pentium® II 333 MHz | |
(Celeron 333MHz) | ||||||||
|
|
|
|
|
|
| ||
OFF | OFF | OFF | ON | 5.5 | 66 | 366 | Pentium® II 366 MHz | |
(Celeron 366MHz) | ||||||||
|
|
|
|
|
|
| ||
ON | ON | ON | OFF | 6 | 66 | 400 | Pentium® II 400 MHz | |
(Celeron 400MHz) | ||||||||
|
|
|
|
|
|
| ||
OFF | ON | ON | OFF | 6.5 | 66 | 433 | Pentium® II 433 MHz | |
(Celeron 433MHz) | ||||||||
|
|
|
|
|
|
| ||
OFF | OFF | ON | ON | 3.5 | 100 | 350 | Pentium® II 350 MHz | |
ON | ON | OFF | ON | 4 | 100 | 400 | Pentium® II 400 MHz | |
OFF | ON | OFF | ON | 4.5 | 100 | 450 | Pentium® III450 MHz | |
ON | OFF | OFF | ON | 5 | 100 | 500 | Pentium® III500 MHz | |
OFF | OFF | OFF | ON | 5.5 | 100 | 550 | Pentium® III 550 MHz | |
ON | ON | ON | OFF | 6 | 100 | 600 | Pentium® III 600 MHz | |
OFF | ON | ON | OFF | 6.5 | 100 | 650 | Pentium® III 650 MHz |
MThe CPU is a sensitive electric component and it can be easily damaged by static electricity, so users must keep it away from
metal surface when the CPU is installed onto mainboard.
M We don’ t recommend you to setup your system speed to 75, 83, 112, or 133MHz because these frequencies are not the standard specifications for CPU, Chipset and most of the peripherals. Whether your system can run under 75, 83, 112 or 133MHz properly will depend on your hardware configurations: CPU, SDRAM, Cards, etc.
3.6. CMOS RTC & ISA CFG CMOS SRAM
The mainboard contains RTC & CMOS SRAM on board. They have a power