Intel I815E User Manual download pdf (Page 14)

INSTALLATIONS

10 I815E User’s Manual

Configuring the CPU Frequency

The I815E board does not provide DIP switches to configure the

processor speed (CPU frequency). However, the processor speed can be

configured inside the BIOS Setup. Refer to the BIOS Setup section in this

manual on how to change the processor speed.

JP2: Clear CMOS Contents

Use JP2, a 3-pin header, to clear the CMOS contents. Note that the

ATX-power connector should be disconnected from the board before

clearing CMOS.

JP2 Setting Function

Pin 1-2

Short/Closed

Normal

Pin 2-3

Short/Closed

Clear CMOS

JP5, JP7, JP8: RS232/422/485 (COM2) Selection

COM1 is fixed for RS-232 use only.

COM2 is selectable for RS232, RS-422 and RS-485.

The following table describes the jumper settings for COM2 selection.

COM2

Function

RS-232 RS-422 RS-485

Jumper

Setting

(pin closed)

JP7:

1-2

JP5:

3-5 & 4-6

JP8:

3-5 & 4-6

JP7:

3-4

JP5:

1-3 & 2-4

JP8:

1-3 & 2-4

JP7:

5-6

JP5:

1-3 & 2-4

JP8:

1-3 & 2-4

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 79 80

Comments to this Manuals

No comments

Intel I815E User Manual Page 14

Comments to this Manuals

Related products and manuals for Motherboards Intel I815E