|
|
Manipulating the processor multiplier is the optimal overclocking method, since it neither interrupts nor changes motherboard-level bus speeds. The processor multiplier number that you select in your BIOS Setup menu (see Figure 4-3), or via dipswitches or jumpers on your motherboard, will determine your processor's operating frequency since the processor will multiply the motherboard's front-side-bus frequency by the processor multiplier. Therefore, by increasing the processor multiplier beyond its default setting, you will increase your processor's operating frequency beyond its default as well.
System stability can only be compromised if the maximum operating frequency of the processor's core is exceeded. Maximum performance potential is best realized by combining several overclocking techniques, but multiplier overclocking is a favorite of many enthusiasts because it creates fewer problems.
Depending on your system hardware, overclocking through multiplier manipulation alone may be impractical. For example, the most recent Intel processors feature a locked core multiplier, except for the earliest Pentium II-based designs and the occasional unlocked engineering sample that surfaces in the underground market. All current and near-future Intel processors are completely locked, thus forcing owners to rely on front-side bus overclocking techniques.
Knowing your motherboard is critical to assessing the overclocking potential of any current AMD Athlon system. The majority of Athlon-based motherboards lack the features users need to control multiplier values. The required circuitry increases manufacturing costs. Those willing to risk hardware-level modifications can overcome this limitation.
|
|
