cpu upgrade and jumper setting
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CPU Support and Jumper Setting for VL/I-486SV2GX4 Motherboard


Rev. 2.0/2.1 Motherboard

* Am486DX4-SV8B
* i486DX4-&EW
* i486DX2-&EW (P24D)

JP16 1-2, 5-6 short for WT
JP17 1-2, 5-6 short
JP18 1-2 short
JP19 1-2, 3-4, 5-6 short
JP20 All Open for 3x clk, (1-2 short for 2x clk)
JP21 2-3 short for WT
JP22 1-2, 4-5 short

* Am486DX4-NV8T
* Am486DX2-NV8T
* Am486DXL4, DXL2

JP16 1-2, 5-6 short
JP17 4-5 short
JP18 4-5 short
JP19 All Open
JP20 4-5 short
JP21 All Open for 3x clk, (2-3 short for 2x clk)
JP22 1-2, 4-5 short

* Intel 486DX4ODP-3x clk
*
Intel 486DX4ODP-2.5 clk
*
Intel 486DX4ODP-2x clk

JP16 5-6 short
JP17 1-2, 5-6 short
JP18 1-2, 5-6 short
JP19 1-2 short
JP20 All Open for 3x clk, (5-6 short for 2.5x clk, 1-2 short for 2x clk)
JP21 All Open
JP22 1-2 short

* Intel SL486SX, SX2
* Intel NonSL486SX, SX2

JP16 5-6 short
JP17 1-2, 5-6 short
JP18 1-2, 5-6 short
JP19 1-2 short
JP20 All Open
JP21 All Open
JP22 2-3 short

* Cx486DX4 (3.45V)
*
Cx486DX2-V (3.6V/4V)
* Ti486DX2-G(3.45V)
* Cx486DX, DX2

JP16 2-3, 5-6 short
JP17 2-3, 5-6 short
JP18 2-3 short
JP19 2-3 short
JP20 2-3 short
JP21 1-2 short (All Open for Cyrix 486DX, DX2)
JP22 1-2 short

* Cx486DX4-P/O
*
Cx5x86(M1sc)

JP16 1-2, 5-6 short
JP17 1-2, 5-6 short
JP18 1-2 short
JP19 1-2, 3-4, 5-6 short
JP20 All Open for 3x clk, (1-2 short for 2x clk)
JP21 All Open
JP22 1-2 short

* SL(NonSL)i486DX,DX2
*
SL(NonSL)i487SX,ODP
* i486DX4-3x, 2.5x, 2x clk

JP16 1-2, 5-6 short
JP17 1-2, 5-6 short
JP18 1-2, 5-6 short
JP19 1-2 short
JP20 All Open for 3x clk, (5-6 for 2.5x clk, 1-2 short for 2x clk)
JP21 All Open
JP22 1-2 short

* P24T, 237-Pin SL ODP


JP16 4-5 short
JP17 1-2, 5-6 short
JP18 5-6 short
JP19 1-2 short
JP20 All Open
JP21 2-3 short for WT
JP22 1-2 short

* Am5x86-P75(x5-133MHz)

JP16 1-2, 5-6 short for WT
JP17 1-2, 5-6 short
JP18 1-2 short
JP19 1-2, 3-4, 5-6 short
JP20 All Open for 3x clk, (1-2 short for 4x clk)
JP21 2-3 short for WT
JP22 1-2, 4-5 short

* Cx5x86(M1sc)-133MHz)

JP16 1-2, 5-6 short for WT
JP17 1-2, 5-6 short
JP18 1-2 short
JP19 1-2, 3-4, 5-6 short
JP20 All Open for 3x clk, (1-2 short for 4x clk)
JP21 All Open
JP22 1-2 short

Cyrix/Intel CPU Selection

CPU

JP11

Cyrix

1&2

Intel

2&3


CPU Voltage Setting

Voltage

JP32

JP33

3.45(Volt)

1&2

Open

3.6(Volt)

2&3

Open

4(Volt)

Open

1&2

3.3(Volt)

Open

2&3

CPU External Clock Setting

Clock Speed

JP23

JP24

JP25

20MHz

1&2

1&2

1&2

25 MHz

2&3

1&2

1&2

33MHz

2&3

2&3

2&3

40MHz

2&3

2&3

1&2

50MHz

1&2

1&2

2&3

Hardware Trap Setting

CPU

JP5

JP6

486SX, DX, DX2, DX4ODP, 487SX, SL 486SX, DX, DX2, DX4, Am486DX4-NV8T, DX2-NV8T

1&2

2&3

Cyrix DX(2), DX2-V, DX4, 5x86, Am486DXL2, Ti486DX2-G

2&3

1&2

i486DX4-&EW, P24D, P24T, Am486DX4-SV8B

1&2

1&2


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Last-Modified: 08/05/96 by Steven Chou
Copyright (C) 1995 ASUSTeK COMPUTER INC.