Asus P3C-D - Manual (Page 20)

20 ASUS P3C-D User’s Manual
3. HARDWARE SETUP
Motherboard Settings
3. H/W SETUP
2) CPU External Frequency Setting (DSW-1, -2, -3, -4, -5)
This option tells the clock generator what frequency to send to the CPU and the
PCI bus. This allows the selection of the CPU’s External frequency.
IMPORTANT:
1. In JumperFree mode, all dip switches (DSW-1–DSW-5) must be set to OFF.
2. When JumperFree mode is enabled, use BIOS setup in place of these switches
(see CPU Speed in 4.4 Advanced Menu).
NOTE: Only selected switches are illustrated. For a complete frequency listing,
see next page.
DSW
(SW2)
CPU
PCI
→
→
105MHz
35MHz
112MHz
37MHz
100MHz
33MHz
ON 12345 ON 12345
CPU
PCI →
→
133MHz
33MHz
142MHz
35MHz
125MHz
42MHz
ON 12345 ON 12345 ON 12345
CPU
PCI
→
→
150MHz
37MHz
ON 12345 ON 12345
P3C-D CPU External Clock
(BUS) Frequency Selection
P3C-D
180MHz
45MHz
(JumperFree Mode)
ON 12345
NOTE: If your processor does not have a locked Frequency Multiple, you must
use CPU Core:Bus Freq. Multiple in 4.4 Advanced Menu of the BIOS setup
to set the Frequency Multiple. If the Frequency Multiple is locked, setting the
Frequency Multiple in BIOS setup will have no effect.