Technical Support - Jumper Settings for 5DTX-LD

Jumper Settings for 5DTX-LD

Auto Jumper Yes	JP37
Enable	[1-2]
Disable	[2-3]

When Auto Jumper Yes is enabled, you are no need to set the jumpers. The CPU brand and its core voltage will be automatically detected. You just need to provide the speed of the CPU through CMOS setup menu.

When Auto Jumper Yes is disabled, please follow the tables shown below for necessary jumper settings.

INTEL PENTIUM CPU

Internal CPU Speed MHz	External Bus Speed MHz	JP5	JP6	Frequency Ratio	JP10
90	60	[3-5],[2-4]	[1-2]	1.5x	[1-3],[2-4]
100	66	[1-3],[2-4]	[1-2]	1.5x	[1-3],[2-4]
120	60	[3-5],[2-4]	[1-2]	2x	[1-3],[4-6]
133	66	[1-3],[2-4]	[1-2]	2x	[1-3],[4-6]
150	60	[3-5],[2-4]	[1-2]	2.5x	[3-5],[4-6]
166	66	[1-3],[2-4]	[1-2]	2.5x	[3-5],[4-6]
200	66	[1-3],[2-4]	[1-2]	3x	[3-5],[2-4]
233	66	[1-3],[2-4]	[1-2]	3.5x	[1-3],[2-4]

CYRIX / IBM 6X86 CPU

Internal CPU Speed MHz	External Bus Speed MHz	JP5	JP6	Frequency Ratio	JP10
PR133	55	[3-5],[4-6]	[1-2]	2x	[1-3],[4-6]
PR166	66	[1-3],[2-4]	[1-2]	2x	[1-3],[4-6]
PR200	75	[1-3],[4-6]	[1-2]	2x	[1-3],[4-6]

AMD K5 CPU

Internal CPU Speed MHz	External Bus Speed MHz	JP5	JP6	Frequency Ratio	JP10
PR90	60	[3-5],[2-4]	[1-2]	1.5x	[1-3],[2-4]
PR100	66	[1-3],[2-4]	[1-2]	1.5x	[1-3],[2-4]
PR133	66	[1-3],[2-4]	[1-2]	1.5x	[1-3],[2-4]
PR150	60	[3-5],[2-4]	[1-2]	1.75x	[3-5],[4-6]
PR166	66	[1-3],[2-4]	[1-2]	1.75x	[3-5],[4-6]

AMD K6 CPU

Internal CPU Speed MHz	External Bus Speed MHz	JP5	JP6	Frequency Ratio	JP10
PR166	66	[1-3],[2-4]	[1-2]	2.5x	[3-5],[4-6]
PR200	66	[1-3],[2-4]	[1-2]	3x	[3-5],[2-4]
PR233	66	[1-3],[2-4]	[1-2]	3.5x	[1-3],[2-4]

CPU VOLTAGE SELECTION

CPU Type	Voltage Requirements
Intel Pentium Cyrix/IBM 6x86 AMD K5	3.4V (STD) / 3.5V (VRE)
Intel MMX Pentium Cyrix/IBM 6x86L/M2 AMD K6 PR166,PR200 AMD K6 PR233	2.8V 2.8V 2.9V 3.2V

JP23	JP22	JP36	Voltage
[1-3],[2-4]	[1-3],[4-6]	[1-2]	2.8V
[3-5],[2-4]	[1-3],[4-6]	[1-2]	2.9V
[1-3],[2-4]	[3-5],[4-6]	[1-2]	3.2V
[1-3],[4-6]	[3-5],[4-6]	[1-2]	3.4V
[3-5],[4-6]	[3-5],[4-6]	[1-2]	3.5V