Intel 630 User Manual - Page 14

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. Recognize of CPU 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 : P2-133MHz front side bus frequency PY-100MHz front side bus frequency 866 : CPU internal frequency, where here is 866MHz 256 : 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 128 : the size of L2 cache, where here is 128K 66 : front side bus frequency, where here is 66MHz 1.5V : the voltage for the CPU 2-3-2 Setting CPU Bus Clock & Memory Clock Jumper 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: 11