Datavan DTV-05C, User Manual

AMD5x86

Open

2&3

Open

2&3

I486DX4WT 

Open

1&2

Open

Open

I486DX4WB

Open

2&3

Open

Open

**JX2:

Jumper for select CPU VCC +5V or +3.3V

+5V output

1&4, 2&5, 3&6. Close.

+3.3V or 3.45V output

4&7, 5&8, 6&9. Close. (* Default)

**JX1:     3.3V output

    1&2 Closed.(* Default)

    3.45V output

    2&3 Closed.(for Cyrix 5x86 CPU)

JP16:

Jumper for select clock generator output frequency for CPU & M/B speed

Frequency CLK1 Pin1 & Pin2

Pin3 & Pin4

Pin5 & Pin6

Pin7 & Pin8

===============================================================

25Mhz

Closed

Open

Closed

Open

33.33MHz(133Mhz 4x) Closed

Closed

Open

Open(*Default)

40MHz(120Mhz 3X)

Open

Closed

Closed

Closed

50MHz

Closed

Open

Closed

Closed

66.66MHz

Closed

Closed

Open

Closed

80MHz

Open

Open

Closed

Closed

100MHz

Open

Closed

Open

Closed

===============================================================

JP17/20/21/23: Jumper to select Configuration of Cache RAM size

CACHE SIZE

JP17

JP20

JP21

JP23

===============================================================

64KB

1&2

Open

1&2

1&2

128KB

1&2

3&4

Closedt

2&3

1&2

256KB

1&2

3&4 

5&6

Closed

1&2

1&2(*Default)

CHAPTER 3

UPGRADING

NOTE:

Your warranty remains in effect only if an authorized dealer of technician adjusts the internal settings. 

This section is intended only for those users who wish to perform the adjustments themselves and void the 
warranty.

8