Asus P5A Compatible Cyrix CPU Identification, 7.Voltage Regulator Output Selection (VID0, 1, 2, 3)

ALLATION INST .III

Jumpers

III. INSTALLATION

Compatible Cyrix CPU Identification

The only Cyrix 6x86-PR166+ CPU that is supported on this motherboard must be Revision 2.7 or later. Look on the underside of the CPU for the serial number. The number should read G8DC6620A or later.

7.Voltage Regulator Output Selection (VID0, 1, 2, 3)

These jumpers set the Core voltage supplied to the CPU. Switching regulators allow some jumper settings to be the same for two voltages of different power planes.

WARNING! Because CPU designs change rapidly, the table below is only intended as a simple guideline and thus may not be true for your CPU. Always refer to the CPU documentation for your CPU’s voltage and then set the appropriate VID jumpers according to the illustration below.

Manufacturer	CPU Type	Single Plane	Dual Plane		VID3 VID2		VID1	VID0
AMD (.25micron)	K6-III/400,450	----	2.4V(Dual)		[1-2]	[2-3]	[1-2]	[1-2]
	K6-2/450,475
AMD (.25micron)	K6-2/266,300,333	----	2.2V(Dual)		[1-2]	[1-2]	[2-3]	[1-2]
	350,366,380,400
	K6/233,266,300
AMD	K5	3.5V(VRE)	----		[2-3]	[2-3]	[2-3]	[2-3]
IBM/Cyrix	6x86	3.5V(VRE)	----		[2-3]	[2-3]	[2-3]	[2-3]
Intel	P54C/P54CS	3.5V(VRE)	----		[2-3]	[2-3]	[2-3]	[2-3]
AMD	K5	3.4V(STD)	----		[2-3]	[2-3]	[2-3]	[1-2]
Intel	P54C/P54CS	3.4V(STD)	---		[2-3]	[2-3]	[2-3]	[1-2]
AMD (.35micron)	K6-PR233	----	3.2V(Dual)		[2-3]	[2-3]	[1-2]	[1-2]
AMD (.35micron)	K6-166,200	----	2.9V(Dual)		[2-3]	[1-2]	[1-2]	[2-3]
IBM/Cyrix	6x86MX	----	2.9V(Dual)		[2-3]	[1-2]	[1-2]	[2-3]
Intel	P55C-MMX	----	2.8V(Dual)		[2-3]	[1-2]	[1-2]	[1-2]
		VID3 VID2 VID1 VID0	VID3 VID2 VID1 VID0	VID3 VID2	VID1 VID0	VID3 VID2 VID1 VID0 VID3 VID2		VID1 VID0
		1
		2
		3		2.2Volts		2.3Volts
		2.0Volts	2.1Volts				2.4Volts
		1
		2
		3		2.7Volts		2.8Volts
		2.5Volts	2.6Volts				2.9Volts
		1
		2
		3
		3.0Volts	3.1Volts	3.2Volts		3.3Volts	3.4Volts
P5A CPU Core Voltage Selection		1
		2
		3
			3.5Volts

18 ASUS P5A User’s Manual