J25 Turbo Speed Led Connector; J26 Turbo Speed Switch Connector; W3 Jumper For 4 Mb Simms - American Megatrends 43 Series User Manual

J25 Turbo Speed LED Connector

J25 can be connected to a front panel LED to reflect the current CPU operating speed. The CPU speed can be toggled from the keyboard by a user-settable
keychord in Setup.

J26 Turbo Speed Switch Connector

J26 can be connected to a front panel turbo switch that allows the CPU speed to be altered via this front panel pushbutton. When the button is in (closed), the
system operates at low speed. When the button is out (open), the system operates at high speed. The keyboard speed control overrides the front panel speed
setting.

W3 Jumper for 4 MB SIMMs

The W3 setting determines if 4 MB SIMMs can be used in the system. If the jumpers are placed between 1-2 and 3-4, 4 MB SIMMs are not supported. If the
jumper between 2-3 is installed, 4 MB SIMMs are supported.