Jumper Settings for 5STX-J98

Jumper Settings for 5STX-J98

5STX-J98 provides two modes for Jumper Settings: (1) Auto Jumper Mode; (2) Manual mode.

Auto Jumper Mode
An advanced technology eliminates the necessity for the user to be bored by jumper settings on the mainboard. It is capable of detecting the CPU brand, and setting the appropriate CPU core voltage and speed according to instructions from the user through CMOS setup menu.

To enable Auto Jumper Mode, short JP14 to position (1-2).

Manual Mode
To enable Manual Mode, short JP14 to position (2-3) and follow the jumper table below for necessary jumper settings for CPU installed.

FOR INTEL PENTIUM / PENTIUM WITH MMX TECHNOLOGY CPU

Internal CPU Speed (MHz)	External Bus Speed (MHz)	JP4	JP5	Frequency Ratio	BF2	BF1	BF0
90	60	[3-5],[2-4]	[1-2]	1.5x	[1-2]	[1-2]	[1-2]
100	66	[1-3],[2-4]	[1-2]	1.5x	[1-2]	[1-2]	[1-2]
120	60	[3-5],[2-4]	[1-2]	2.0x	[1-2]	[1-2]	[2-3]
133	66	[1-3],[2-4]	[1-2]	2.0x	[1-2]	[1-2]	[2-3]
150	60	[3-5],[2-4]	[1-2]	2.5x	[1-2]	[2-3]	[2-3]
166	66	[1-3],[2-4]	[1-2]	2.5x	[1-2]	[2-3]	[2-3]
200	66	[1-3],[2-4]	[1-2]	3.0x	[1-2]	[2-3]	[1-2]
233	66	[1-3],[2-4]	[1-2]	3.5x	[1-2]	[1-2]	[1-2]

FOR CYRIX/IBM 6X86 M1/M2 CPU

Internal CPU Speed (MHz)	External Bus Speed (MHz)	JP4	JP5	Frequency Ratio	BF2	BF1	BF0
P150+	60	[3-5],[2-4]	[1-2]	2.0x	[1-2]	[1-2]	[2-3]
P166+	66	[1-3],[2-4]	[1-2]	2.0x	[1-2]	[1-2]	[2-3]
PR200	75	[1-3],[4-6]	[1-2]	2.0x	[1-2]	[1-2]	[2-3]
PR233	66	[1-3],[2-4]	[1-2]	3.0x	[1-2]	[2-3]	[1-2]
PR233	75	[1-3],[4-6]	[1-2]	2.5x	[1-2]	[2-3]	[2-3]
PR266	66	[1-3],[2-4]	[1-2]	3.5x	[1-2]	[1-2]	[1-2]

FOR AMD-K5/K6 CPU

Internal CPU Speed (MHz)	External Bus Speed (MHz)	JP4	JP5	Frequency Ratio	BF2	BF1	BF0
PR90	60	[3-5],[2-4]	[1-2]	1.5x	[1-2]	[1-2]	[1-2]
PR100	66	[1-3],[2-4]	[1-2]	1.5x	[1-2]	[1-2]	[1-2]
PR133	66	[1-3],[2-4]	[1-2]	1.5x	[1-2]	[1-2]	[1-2]
PR166	66	[1-3],[2-4]	[1-2]	2.5x	[1-2]	[2-3]	[2-3]
PR200	66	[1-3],[2-4]	[1-2]	3.0x	[1-2]	[2-3]	[1-2]
PR233	66	[1-3],[2-4]	[1-2]	3.5x	[1-2]	[1-2]	[1-2]
PR266	66	[1-3],[2-4]	[1-2]	4.0x	[2-3]	[1-2]	[2-3]
PR300	66	[1-3],[2-4]	[1-2]	4.5x	[2-3]	[2-3]	[2-3]

FOR IDT-C6

Internal CPU Speed (MHz)	External Bus Speed (MHz)	JP4	JP5	Frequency Ratio	BF2	BF1	BF0
150	50	[3-5],[4-6]	[2-3]	3.0x	[1-2]	[2-3]	[1-2]
150	75	[1-3],[4-6]	[1-2]	2.0x	[1-2]	[1-2]	[2-3]
180	60	[3-5],[2-4]	[1-2]	3.0x	[1-2]	[2-3]	[1-2]
200	66	[1-3],[2-4]	[1-2]	3.0x	[1-2]	[2-3]	[1-2]

CPU Voltage Selection

CPU Type	Voltage Requirements
Intel Pentium Cyrix/IBM 6x86 AMD K5 IDT-C6	3.4V(STD) / 3.5V(VRE)
Intel Pentium with MMX Cyrix/IBM 6x86L	2.8V
Cryix/IBM 6x86MX AMD-K6-PR166, PR200	2.9V
AMD-K6-PR233	3.2V
AMD-K6-PR266, PR300	2.2V

CPU Core Voltage Table

Vcore	VID4	VID3	VID2	VID1	VID0
2.2V	[1-2]	[1-2]	[1-2]	[2-3]	[1-2]
2.8V	[1-2]	[2-3]	[1-2]	[1-2]	[1-2]
2.9V	[1-2]	[2-3]	[1-2]	[1-2]	[2-3]
3.2V	[1-2]	[2-3]	[2-3]	[1-2]	[1-2]
3.3V	[1-2]	[2-3]	[2-3]	[1-2]	[2-3]
3.4V	[1-2]	[2-3]	[2-3]	[2-3]	[1-2]
3.5V	[1-2]	[2-3]	[2-3]	[2-3]	[2-3]