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Aopen DX34 PLUS Manuale Utente

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This motherboard supports DUAL processors for Intel PentiumII / Pentium!!!, and 
Celeron CPU (applied to PPGA package only, must lower than 300MHz). Please refer 
to the following table for detail. It is not  recommended to change the default setting, 
unless the system fails to boot and you’re trying to troubleshoot. 
 
 
Processor  CPU Package 
Configuration 
Single Processor 
PentiumII 
Pentium!!! 
Celeron 
All 
Default 
PentiumII 
Pentium!!! 
All 
Default 
Celeron 
PPGA 
Set the SW3 to OFF 
Dual Processor 
Celeron 
FC-PGA 
Not Supported 
When you are using the Intel
®  
engineer sample CPU with DX34/DX34Plus, the SW1 
allows you select the CPU ratio from 2x to 9.5 x. You can adjust the SW1 to get the correct 
CPU working ratio and frequency.  
5. SW1 Setting CPU FSB Frequency & Ratio 
4. SW3 Select CPU Type 
3. Installing Thermal Sensor 
GND 
Sensor 
The Thermal Sensor Connector (CN12 & CN1) provides you to use the thermal sensor 
to detect the CPU temperature of the components on the motherboard. 
OFF 
ON
1
SW3 
Warning: We strongly recommend you do 
not overclocking your CPU and system for 
get more system reliability.  
SW1 
ON 
OFF 
1 
Bit1 
Bit2 
Bit3 
Bit4 
Ratio 
Frequency 
(FSB100) 
Frequency 
(FSB133) 
On 
On 
On 
On 
X2 
200 
266 
On 
Off 
On 
On 
X2.5 
250 
333 
On 
On 
Off 
On 
X3 
300 
400 
On 
Off 
Off 
On 
X3.5 
350 
466 
On 
On 
On 
Off 
X4 
400 
533 
On 
Off 
On 
Off 
X4.5 
450 
600 
On 
On 
Off 
Off 
X5 
500 
667 
On 
Off 
Off 
Off 
X5.5 
550 
733 
Off 
On 
On 
On 
X6 
600 
800 
Off 
Off 
On 
On 
X6.5 
650 
866 
Off 
On 
Off 
On 
X7 
700 
933 
Off 
Off 
Off 
On 
X7.5 
750 
1000 
Off 
On 
On 
Off 
X8 
800 
1066 
Off 
Off 
On 
Off 
X8.5 
850 
1133 
Off 
On 
Off 
Off 
X9 
900 
1200 
Off 
Off 
Off 
Off 
X9.5 
950 
1266 
 
1
 
2
 
ON
 
(Default) 
1
 
2
 
ON