Asus P4B-MX manual 37

CPU frequency selection (SWITCH Switches 5-9)

This option tells the clock generator what frequency to send the CPU, 3V66, and PCI. This allows the selection of the CPU’s external frequency (or Bus Clock). The bus clock multiplied by the frequency multiple equals the CPU’s internal frequency (the advertised CPU speed).

SW1801

	9 10		9 10		9 10
	8		8		8
	7		7
					7
	6		6		6
	5		5		5
	4		4		4
	3		3		3
ON	1 2	ON	1 2	ON	1 2

CPUCLK 100.00MHz 103.00MHz 105.00MHz

3V66 66.67MHz 68.67MHz 70.00MHz PCICLK 33.33MHz 34.33MHz 35.00MHz

P4B-MX

P4B-MX CPU External Frequency Selection

	9 10		9 10		9 10
	8		8		8
			7		7
	7
	6		6		6
	5		5		5
	4		4		4
	3		3		3
ON	1 2	ON	1 2	ON	1 2

													CPUCLK 107.00MHz 109.00MHz 111.00MHz
														3V66		71.33MHz			72.67MHz			74.00MHz
													PCICLK 35.67MHz						36.33MHz			37.00MHz
			9 10			9 10			9 10			9 10			9 10			9 10			9 10			9 10
			8			8			8			8			8			8			8			8
			7			7			7			7			7			7			7			7
			6			6			6			6			6			6			6			6
			5						5			5			5			5			5			5
						5
			4			4			4			4			4			4			4			4
			3						3			3			3			3			3			3
						3
		ON	1 2		ON	1 2		ON	1 2		ON	1 2		ON	1 2		ON	1 2		ON	1 2		ON	1 2
CPUCLK 114.00MHz 117.00MHz 120.00MHz 127.00MHz 130.00MHz 133.33MHz 170.00MHz 180.00MHz
3V66	76.00MHz			78.00MHz			80.00MHz			84.67MHz			86.67MHz			88.89MHz			56.67MHz			60.00MHz
PCICLK	38.00MHz			39.00MHz			40.00MHz			42.33MHz			43.33MHz			44.44MHz			28.33MHz			30.00MHz
			9 10			9 10			9 10			9 10			9 10			9 10			9 10			9 10
			8			8			8			8			8			8			8			8
			7			7			7			7			7			7			7			7
			6			6			6			6			6			6			6			6
						5			5			5			5			5			5			5
			5
			4			4			4			4			4			4			4			4
						3			3			3			3			3			3			3
			3
			1 2			1 2									1 2
		ON			ON			ON	1 2		ON	1 2		ON			ON	1 2		ON	1 2		ON	1 2
CPUCLK 190.00MHz 133.33MHz 120.00MHz 125.00MHz 134.90MHz 137.00MHz 139.00MHz 141.00MHz
3V66	63.33MHz			66.67MHz			60.00MHz			62.50MHz			67.45MHz			68.50MHz			69.50MHz			70.50MHz
PCICLK	31.67MHz			33.33MHz			30.00MHz			31.25MHz			33.73MHz			34.25MHz			34.75MHz			35.25MHz
			9 10			9 10			9 10			9 10			9 10			9 10			9 10			9 10
			8			8			8			8			8			8			8
																								8
			7			7			7			7			7			7			7			7
			6			6			6			6			6			6			6			6
			5			5			5			5			5			5			5
																								5
			4			4			4			4			4			4			4			4
			3			3			3			3			3			3			3
																								3
		ON	1 2		ON	1 2		ON	1 2		ON	1 2		ON	1 2		ON	1 2		ON	1 2		ON	1 2
CPUCLK 143.00MHz 145.00MHz 150.00MHz 155.00MHz 160.00MHz 170.00MHz																			66.67MHz 200.00MHz
3V66	71.50MHz			72.50MHz			75.00MHz			77.50MHz			80.00MHz			85.00MHz			66.67MHz			66.67MHz
PCICLK	35.75MHz			36.25MHz			37.5MHz			38.75MHz			40.00MHz			42.50MHz			33.34MHz			33.33MHz

Figure 2-21 CPU Frequency Settings

ASUS P4B-MX motherboard user guide 2-17