Asus P2-99B WARNING, Internal, External, CPU External Frequency, 4.CPU External Frequency Selection (FS0, FS1, FS2, FS3)

SETUP H/W .III

Settings Motherboard

III.HARDWARE SETUP

4.CPU External Frequency Selection (FS0, FS1, FS2, FS3)

This option tells the clock generator what frequency to send to the CPU, DRAM, and 440ZX AGPset. This allows the selection of the CPU’s External frequency. The CPU External Frequency multiplied by the Frequency Multiple equals the CPU’s Internal frequency (the advertised CPU speed).

		1	2	3	1	2	3	1	2	3	1	2	3	1	2	3
	FS3
	FS2
	FS1
	FS0
	CPU 66.8MHz				75.0MHz			83.30MHz 100.30MHz 103.00MHz
	PCI	33.4MHz			37.5MHz			41.65MHz			33.43MHz			34.33MHz
		1	2	3	1	2	3	1	2	3	1	2	3	1	2	3
	FS3
	FS2
	FS1
	FS0
P2-99B	CPU 105.0MHz 110.00MHz 112.00MHz 115.00MHz 120.0MHz
	PCI	35.0MHz			36.67MHz			37.33MHz			38.33MHz			40.0MHz
	FS3	1	2	3	1	2	3	1	2	3	1	2	3	1	2	3
	FS2
P2-99B CPU	FS1
External Frequency Selection	FS0				133.0MHz 133.00MHz 140.0MHz									150.0MHz
	CPU124.0MHz
	PCI	31.0MHz			33.3MHz			44.33MHz			35.0MHz			37.5MHz

5.CPU Core:External Frequency Multiple (BF0, BF1, BF2, BF3)

This option sets the frequency multiple between the Internal frequency of the CPU and the CPU’s External frequency. These must be set in conjunction with the CPU External Frequency.

BF0	BF1 BF2	BF3	BF0 BF1 BF2 BF3
3
2
1
2.0x(2/1)			2.5x(75/2)
BF0	BF1 BF2	BF3	BF0 BF1 BF2 BF3
3
2
1
4.5x(9/2)			5.0x(5/1)
BF0	BF1 BF2	BF3	BF0 BF1 BF2 BF3
3
P2-99B
2
1
7.0x(7/1)			7.5x(15/2)

BF0 BF1 BF2 BF3	BF0 BF1 BF2 BF3	BF0 BF1 BF2 BF3
3.0x(3/1)	3.5x(7/2)	4.0x(4/1)
BF0 BF1 BF2 BF3	BF0 BF1 BF2 BF3	BF0 BF1 BF2 BF3
5.5x(11/2)	6.0x(6/1)	6.5x(13/2)
BF0 BF1 BF2 BF3
8.0x(8/1)

P2-99B CPU Core-to-Bus Frequency Multiple Settings

WARNING! Frequencies above 100MHz exceed the specifications for the onboard Intel Chipset and are not guaranteed to be stable.

16 ASUS P2-99B User’s Manual