jetway 630tcfr3a Manuale Utente

 
 
 
                                                                                                                                                                                                                                                                                                                                                         

 
 
 

 

doing the "computing" in "personal computer"  
Front Side Bus Frequency - The working frequency of the motherboard, which is 
generated by the clock generator for CPU, DRAM and PCI BUS. 
CPU Internal Frequency - The frequency of CPU, which is also the actual working 
frequency of CPU. 
Bus Frequency Ratio - The ratio of the working frequency, multiply Front Side Bus 
Frequency with Bus Frequency Ratio will form the CPU Internal Frequency. 
CPU L2 Cache 
The flash memory inside the CPU, normally Pentium III CPU has 256K or above, while 
Celeron CPU will have 128K. 

 

The way to recognize the specification of CPU from the packing Pentium III 370 
pins FC-PGA 
On the surface of the CPU as shown on the right picture, under the word of 
“PENTIUM III” the code is:  
RB 80526 P2 866 256 
RB :  

FC–PGA packing 

P2–133MHz front side bus frequency 

 

   

PY–100MHz front side bus frequency 

CPU internal frequency, where here is 

  

  

 866MHz 

the size of L2 cache, where here is 256K

 

 
Celeron FC–PGA 
On the surface of the CPU as shown on the right picture, under the word of 
“Celeron” the code is:  
566/128/66/1.5V 
566 :  

CPU internal frequency, where here is 566MHz 

the size of L2 cache, where here is 128K 

 front side bus frequency, where here is 66MHz 

the voltage for the CPU

 

 
 
 

Setting the front side bus frequency and SDRAM frequency 
The motherboard uses jumper JP2 for the front side bus frequency and SDRAM 
frequency setting as shown from the table below: