Asus SP97-XV User Manual - Page 14

R III. INSTALLATION (Jumpers) III. INSTALLATION 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 installed VGA expansion card within your operating system. VGA_SEL Enable Disable Setting [2-3] (default) [1-2] VGA_SEL VGA_SEL Enable (Default) Disable Onboard VGA Selection 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. FS0 FS1 FS2 FS0 FS1 FS2 FS0 FS1 FS2 FS0 FS1 FS2 FS0 FS1 FS2 FS0 FS1 FS2 R Match the table's Ratio column to these CPU types: 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 50MHz 55MHz 60MHz 66MHz 75MHz CPU External Clock (BUS) Frequency Selection 1 2 3 83MHz BF0 BF1 BF2 BF0 BF1 BF2 BF0 BF1 BF2 BF0 BF1 BF2 BF0 BF1 BF2 BF0 BF1 BF2 1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 3 CPU A CPU B CPU C CPU D CPU E 1.5x(3/2) 3.5x(7/2) 3.0x(3/1) 3.0x(3/1) 3.5x(7/2) 2.0x(2/1) 2.0x(2/1) 2.0x(2/1) 2.0x(2/1) 2.0x(2/1) 2.5x(5/2) 2.5x(5/2) 1.0x(1/1) 2.0x(2/1) 2.5x(5/2) 3.0x(3/1) 3.0x(3/1) ------3.0x(3/1) ---- ---- ---- ---- ---- ---- ---- ---- 4.0X(4/1) (4.5X)(9/2) CPU : BUS Frequency Ratio WARNING! Frequencies above 66MHz exceed the specifications for the onboard Intel Chipset and are not guaranteed to be stable. 14 ASUS SP97-XV User's Manual