Installation -- jumper

Yesterday, I encountered a lot of trouble during the installation, and I paid a heavy price for it.

The patch cord area only occupies a small area on the motherboard, which is about 1‰ of the Main Board area. It may be smaller than this area. Because of the small area, I cannot see the specific English letters above. When observing the motherboard, I did not draw it down. Remember that I installed the patch cord for the first time:

First try, can work, do not pay attention to light or not light. Install the cabinet cover in a hurry. When testing again, the indicator light is not on. No way, you have to open the cabinet cover again to find the reason.

After careful check, there are no errors in other places. It must have been a jumper error. The teacher asked me to unmount the patch cord and re-install it. I couldn't see the English characters in the patch cord, the master helped me find a patch cord drawing. According to the patch cord drawing, and with the help of the master and sister cloud, the patch cord was finally installed. After testing, everything was normal. The installation diagram is as follows:

The rules are as follows:

(1) only one jumper is vertical, that is, h.d. d led.

(2) The last line is a jumper, which is related to power and requires power supply. Note the location of the yellow area.

(3) reset the startup key, which is a wild goose that leaves the group and is very lonely.

(4) The chassis horn is connected with four pins, which are the largest plug. When the computer is started, the sound of a "Drop" occurs during normal work.

Make a "Drop" sound.