C.A.M.

Every overclocking guru knows that the CPU speed is a product of the mainboard's Front Side Bus (FSB) frequency and the CPU multiplier. For example: A Pentium 4 2.8GHz on a system with FSB 800MHz is the product of a 200MHz (System Clock*) x 14 (CPU Multiplier). In order to gain a higher CPU frequency, overclockers normally tweak the FSB frequency because adjusting the CPU multiplier often is not possible due to certain locks which Intel places on retail versions of the Pentium 4. This is for warranty and safety reasons, but it also has the unfortunate side effect of limiting your overclocking options.
GIGABYTE 925/915 series motherboards now offer the GIGABYTE CPU Adjustable Multiplier (C.A.M.) feature, which allows you to adjust CPU multiplier to 14x. The reduction of multiplier value provides more flexibility for increasing external FSB frequency to raise memory bus bandwidth.
GIGABYTE C.A.M. boosts overall system performance by making synchronous modification possible. Enjoy better performance at the same CPU operation speed and improve your system without pushing the CPU to the limit.
The following table shows the effectiveness of GIGABYTE C.A.M.. As the table indicates, GIGABYTE C.A.M. adjusted CPU multiplier from 17x to 14x, allowing the system to operate with FSB frequency up to 243MHz (maximum bandwidth 7.77GB/sec) and memory bandwidth up to 10.33GB/sec while CPU operation speed remained at 3.4GHz.

Example: CPU operation speed fixed at 3.4GHz (Default setting: 3.4GHz CPU, 200MHz FSB, 18x multiplier, and 533MHz DDR2 memory module)
CPU operation speed	GIGABYTEC.A.M.	Multiplier	FSB Frequency	Increased % of the FSB	Effective Memory Frequency	Memory Bandwidth
3.4GHzplie	Yes	14x	243MHz	21%	646MHz	10.33GB/sec
3.4GHzplie	No	17x	200MHz	0%	533MHz	8.6GB/sec

- Different CPU Operation speed will generates different results

Note: Because the IntelR PentiumR 4 processor is a Quad-Bus architecture, the FSB frequency is the result of system clock multiply by 4. Example: FSB 800MHz = 200MHz (System Clock) X 4

To experience the exciting feature of GIGABYTE C.A.M., below are some tips and guidelines to get up more acquainted with the benefits CAM delivers.

1)	Below shows the BIOS setup screen on a GIGABYTE 925X/915 family series based motherboard. Select " Motherboard Intelligent Tweaker (M.I.T.)" to enter advanced settings.
2)	In the " Motherboard Intelligent Tweaker (M.I.T.)" section, you will find "C.A.M." section..
	< Select "Motherboard Intelligent Tweaker" in BIOS setup main page to enter GIGABYTE C.A.M. function.>
3)	GIGABYTE C.A.M. offers 2 settings for this function Low and High. The default setting is High, in which the motherboard sets the CPU multiplier to the default settings of CPU, whereas the Low setting adjusts the CPU multiplier to x14 to gain a higher FSB frequency enhancement.
	< The default setting for GIGABYTE C.A.M is "High">

- Motherboard: GIGABYTE GA-8ANXP-D, BIOS version: F5
- CPU: Intel LGA775 3.4GHz
- Memory: Micron DDR2 533, 512MB*2pcs
- Graphics Card: GIGABYTE GV-RX60X128V
- O.S: Windows XP Professional Version + Service Pack 2