Asus SP97-XV - Manual (Page 14)

14 ASUS SP97-XV User’s Manual
III. INSTALLATION
(Jumpers)
III. INST
ALLA
TION
2. VGA Setting (VGA_SEL) (with onboard VGA version only)
These jumpers allow you to turn the onboard VGA on or off if necessary. The
motherboard BIOS will automatically Enable or Disable the onboard VGA based
on whether a VGA card is in the expansion bus. You need to disable the onboard
VGA only if you have conflicts between the onboard VGA and a separate in-
stalled VGA expansion card within your operating system.
VGA_SEL Setting
Enable [2-3] (default)
Disable [1-2]
R
Onboard VGA Selection
Disable
VGA_SEL
Enable (Default)
VGA_SEL
3. CPU External (BUS) Frequency Selection (FS0, FS1, FS2)
These jumpers tell the clock generator what frequency to send to the CPU. These
allow the selection of the CPU’s External frequency (or BUS Clock). The BUS Clock
times the BUS Ratio equals the CPU’s Internal frequency (the advertised CPU speed).
4. CPU to BUS Frequency Ratio (BF0, BF1, BF2)
These jumpers set the frequency ratio between the Internal frequency of the CPU
and the External frequency (called the BUS Clock) within the CPU. These must
be set together with the above jumpers CPU External (BUS) Frequency Selection.
R
CPU External Clock (BUS) Frequency Selection
1
2
3
BF1 BF0 BF2
1
2
3
BF1 BF0 BF2
1
2
3
BF1 BF0 BF2
1
2
3
BF1 BF0 BF2
Match the table’s Ratio column
to these CPU types:
CPU : BUS Frequency Ratio
3.0x(3/1)
3.0x(3/1)
----
----
3.0x(3/1)
2.5x(5/2)
2.5x(5/2)
1.0x(1/1)
2.0x(2/1)
2.5x(5/2) 2.0x(2/1)
2.0x(2/1)
2.0x(2/1)
2.0x(2/1)
2.0x(2/1) 1.5x(3/2)
3.5x(7/2)
3.0x(3/1)
3.0x(3/1)
3.5x(7/2) CPU A
CPU B
CPU C
CPU D
CPU E ----
----
----
----
4.0X(4/1)
----
----
----
----
(4.5X)(9/2)
1
2
3
BF1 BF0 BF2
1
2
3
BF1 BF0 BF2
66MHz
FS1 FS0 FS2
1
2
3
60MHz
FS1 FS0 FS2
1
2
3
55MHz
FS1 FS0 FS2
1
2
3
50MHz
FS1
1
2
3
FS0 FS2
75MHz
FS1 FS0 FS2
1
2
3
83MHz
FS1 FS0 FS2
1
2
3
WARNING! Frequencies above 66MHz exceed the specifications for the
onboard Intel Chipset and are not guaranteed to be stable.