beautypg.com

Hardware setup, 22 asus cua user’s manual, Cua cpu external clock (bus) frequency selection – Asus CUA User Manual

Page 22

background image

22

ASUS CUA User’s Manual

3. HARDWARE SETUP

Motherboard Settings

3. H/W SETUP

WARNING!

Premature wearing of the processor may result when overclocking.

Be sure that the DIMM you use can handle the specified SDRAM MHz or else
bootup will not be possible.

CUA CPU External
Clock (BUS) Frequency
Selection

CPU

CPU

CPU

CPU

(JumperFree Mode)

CUA

®

PCI

PCI

36.6MHz

PCI

PCI

66MHz

ON

123

4

5

67

8

33MHz

75MHz

ON

123

4

5

67

8

37.5MHz

80MHz

ON

123

4

5

67

8

40MHz

83MHz

ON

123

4

5

67

8

41.6MHz

68MHz

ON

123

4

5

67

8

34MHz

100MHz

ON

123

4

5

67

8

33MHz

103MHz

ON

123

4

5

67

8

34.3MHz

105MHz

ON

123

4

5

67

8

35MHz

110MHz

ON

123

4

5

67

8

112MHz

ON

123

4

5

67

8

37.3MHz

115MHz

ON

123

4

5

67

8

38.3MHz

120MHz

ON

123

4

5

67

8

40MHz

124MHz

ON

123

4

5

67

8

31MHz

133MHz

ON

123

4

5

67

8

33MHz

140MHz

ON

123

4

5

67

8

35MHz

150MHz

ON

123

4

5

67

8

37.5MHz

NOTE: If your processor does not have a locked Frequency Multiple, you must
use CPU Core:Bus Freq. Multiple in 4.4 Advanced Menu (BIOS) to set the
Frequency Multiple. If the Frequency Multiple is locked, setting the Frequency
Multiple in BIOS setup will have no effect.

6) CPU External Frequency Setting (DSW1 Switches 1–4)

This option tells the clock generator what frequency to send to the CPU, SDRAM,
PCI, and the chipset. 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).

IMPORTANT:

1. In JumperFree mode, all dip switches must be set to OFF.
2. When JumperFree mode is enabled, use BIOS setup in place of these switches

(set CPU Speed in Advanced Menu in BIOS Setup).