Asus X900-PIB P3C-E User Manual - Page 20

ASUS P3C-E User's Manual, CPU External Frequency Setting DSW-1, -2, -3, -4, -5, CPU Speed, CPU Core:

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3. HARDWARE SETUP 6) 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 Advanced Menu in BIOS Setup). NOTE: Only selected switches are illustrated. For a complete frequency listing, see next page. DSW (SW2) ON 12345 ON 12345 ON 12345 CPU → 100MHz PCI → 33.6MHz 103MHz 34.3MHz 105MHz 34.9MHz P3C-E ON 12345 ON 12345 ON 12345 P3C-E CPU External Clock (BUS) Frequency Selection CPU →133.9MHz PCI → 33.4MHz 138MHz (JumperFree Mode) 34.5MHz NOTE: If your processor does not have a locked Frequency Multiple, you must use CPU Core:Bus Freq. Multiple in 4.4 Advanced Menu 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. 3. H/W SETUP Motherboard Settings 20 ASUS P3C-E User's Manual

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20
ASUS P3C-E User’s Manual
3. HARDWARE SETUP
Motherboard Settings
3. H/W SETUP
6)
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
Advanced Menu
in BIOS Setup).
NOTE:
Only selected switches are illustrated. For a complete frequency listing,
see next page.
DSW
(SW2)
CPU
PCI
→
→
103MHz
34.3MHz
105MHz
34.9MHz
100MHz
33.6MHz
ON
12345
ON
12345
CPU
PCI
→
→
138MHz
34.5MHz
133.9MHz
33.4MHz
ON
12345
ON
12345
P3C-E CPU External Clock
(BUS) Frequency Selection
(JumperFree Mode)
ON
12345
ON
12345
P3C-E
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.