Jumper Settings for TX98-3D/TX98


TX98-3D/TX98 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 JP16 to position (1-2).

Manual Mode
To enable Manual Mode, short JP16 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) FQ3 FQ2 FQ1 Frequency Ratio BF2 BF1 BF0
100 66 [1-2] [1-2] [1-2] 1.5x [1-2] [1-2] [1-2]
120 60 [1-2] [1-2] [2-3] 2.0x [1-2] [1-2] [2-3]
133 66 [1-2] [1-2] [1-2] 2.0x [1-2] [1-2] [2-3]
150 60 [1-2] [1-2] [2-3] 2.5x [1-2] [2-3] [2-3]
166 66 [1-2] [1-2] [1-2] 2.5x [1-2] [2-3] [2-3]
200 66 [1-2] [1-2] [1-2] 3.0x [1-2] [2-3] [1-2]
233 66 [1-2] [1-2] [1-2] 3.5x [1-2] [1-2] [1-2]

FOR CYRIX/IBM 6x86/6x86MX/MII CPU

Internal CPU Speed (MHz) External Bus Speed (MHz) FQ3 FQ2 FQ1 Frequency Ratio BF2 BF1 BF0
P150+ 60 [1-2] [1-2] [2-3] 2.0x [1-2] [1-2] [2-3]
P166+ 66 [1-2] [1-2] [1-2] 2.0x [1-2] [1-2] [2-3]
PR200 75 [1-2] [2-3] [1-2] 2.0x [1-2] [1-2] [2-3]
PR233 66 [1-2] [1-2] [1-2] 3.0x [1-2] [2-3] [1-2]
PR233 75 [1-2] [2-3] [1-2] 2.5x [1-2] [2-3] [2-3]
PR266 66 [1-2] [1-2] [1-2] 3.5x [1-2] [1-2] [1-2]
PR266 83 [2-3] [1-2] [2-3] 2.5x [1-2] [2-3] [2-3]
PR300 66 [1-2] [1-2] [1-2] 3.5x [1-2] [1-2] [1-2]
PR300 75 [1-2] [2-3] [1-2] 3.0x [1-2] [2-3] [1-2]
PR333 66 [1-2] [1-2] [1-2] 4.0x [2-3] [1-2] [2-3]
PR333 75 [1-2] [2-3] [1-2] 3.5x [1-2] [1-2] [1-2]
PR333 83 [2-3] [1-2] [2-3] 3.0x [1-2] [2-3] [1-2]

FOR AMD-K5/K6/K6-2 CPU

Internal CPU Speed (MHz) External Bus Speed (MHz) FQ3 FQ2 FQ1 Frequency Ratio BF2 BF1 BF0
PR100 66 [1-2] [1-2] [1-2] 1.5x [1-2] [1-2] [1-2]
166 66 [1-2] [1-2] [1-2] 2.5x [1-2] [2-3] [2-3]
200 66 [1-2] [1-2] [1-2] 3.0x [1-2] [2-3] [1-2]
233 66 [1-2] [1-2] [1-2] 3.5x [1-2] [1-2] [1-2]
266 66 [1-2] [1-2] [1-2] 4.0x [2-3] [1-2] [2-3]
300 66 [1-2] [1-2] [1-2] 4.5x [2-3] [2-3] [2-3]
333 66 [1-2] [1-2] [1-2] 5.0x [2-3] [2-3] [1-2]

FOR IDT-C6 CPU

Internal CPU Speed (MHz) External Bus Speed (MHz) FQ3 FQ2 FQ1 Frequency Ratio BF2 BF1 BF0
150 50 [2-3] [2-3] [2-3] 3.0x [1-2] [2-3] [1-2]
150 75 [1-2] [2-3] [1-2] 2.0x [1-2] [1-2] [2-3]
180 60 [1-2] [1-2] [2-3] 3.0x [1-2] [2-3] [1-2]
200 66 [1-2] [1-2] [1-2] 3.0x [1-2] [2-3] [1-2]
255 75 [1-2] [2-3] [1-2] 3.0x [1-2] [2-3] [1-2]

CPU Voltage Selection

CPU Type Voltage Requirements
Intel Pentium
Cyrix/IBM M1 6x86
AMD K5
IDT-C6		 3.4V(STD) / 3.5V(VRE)
Intel Pentium with MMX
Cyrix/IBM M1 6x86L		 2.8V
Cryix/IBM 6x86MX
AMD-K6-166, 200		 2.9V
AMD-K6-233 3.2V
AMD-K6-266, 300, K6-2 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]

Special Function Keys

Press the key "F" during power on to clear the CMOS
Press the key "J" during power on to re-detect the CPU

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Copyright(c) 1998 Zida Technologies Limited. All Rights Reserved.
Last Updated on 17 July 1998

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