User`s manual

G586SP/G586SP AIO
14
Jumper JP16: CPU Voltage Type
Jumper JP18: L1 Cache Mode
Jumper JP17: CPU Type and VRM (optional) Socket
Setting
Internal to External Ratio
JP20
JP21
1.5 X
(Default)
Off
Off
2.0 X
Off
On
2.5X
On
On
3.0 X
On
Off
Jumper JP20, JP21: CPU Internal to External Speed Ratio
To determine the CPU core to bus speed ratio, divide the core
speed by the bus speed. For your CPU external and internal
speed, refer to the CPU manufacturer’s documentation.
JP16
3.3V (STD/VR) Pin 1-2 On
3.45V (VRE) (Default) Pin 3-4 On
CPU Type
Pentium
3.3V
(Default)
Future
Pentium CPUs
* Future
Pentium
CPUs
JP17 On: 1-2, 3-4,
5-6, 7-8
Off: 1-2, 3-4,
5-6, 7-8
On: 1-2, 3-4
Off: 5-6, 7-8
VRM (option) Take Off Installed Installed
* VRM only supports Vcore voltage to CPU
JP18
Write-Back (Default) Pin 1-2 On
Write-Through Pin 2-3 On
Note: If you change JP18 setting, you must also change the “L1
Cache Update Mode” option in the “Chipset Features Setup” of
the BIOS Features Setup.