SOYO SOYOTM manual Memory Configuration, Dual Voltage CPU Setting

14 Hareware Setup

Dual Voltage CPU Setting

Dual voltage CPUs are designed to use different voltage for VIO and VCore and they include Intel P55C series, Cyrix 6x86L/MX, AMD K6, and MMX technology included CPUs. Refer to the following figures to set these CPUsÕ voltage:

		2.8V CPU (default)
		(i.e., P55C, 6x86L/MX)
		11 9 7 5 3 1
	Socket 7	JP30
	(for 586 CPU Family)
		2.1V CPU
		(i.e., K6)
	W25P240AF	11 9 7 5 3 1
		JP30
FDC
		2.9V CPU
IDE2	11 9 7 5 3 1	(i.e., K6)
		11 9 7 5 3 1
IDE1
	JP30
		JP30
		3.2V CPU
		(i.e., K6)
		11 9 7 5 3 1

JP30

Figure 2Ð2Ð2. Dual Voltage CPU

Note: Due to various design, please ask your CPU dealer for the exact VIO and VCORE voltage before you install it.

Memory Configuration

The mainboard supports two banks of 72-pin SIMM modules and three strips of 168-pin/3.3V Unbuffered DIMM modules. The mainboard requires SIMM of at least 70ns access time.

The mainboard supports from 4 to 256 Mbytes with no other restrictions on memory configurations. You must install two strips of SIMM modules to complete a bank.