I am new to this board and so I would like to ask a question, maybe somebody can help me.
The problem I am facing is that the fan on my motherboard of my laptop wont start. The strange thing is that first it was working. Then I switched it off and suddenly wont work anymore. ( the fan only ) More strange is that the laptop functions perfectly, just that it get heaten up badly due to the fan issue.
I took out the schematics of the board and found the fan control section shown below:
When I measure the PIN1 of JP26 with a multimeter I only get about 0.26V instead of 5.0V, for the fan to work.
The U26 chip shows the following readings:
PIN1 - about 5V
PIN2 - about 5V
PIN3 - about 0.26V
If there is somebody who could help a little would be much appreciated!
Thanks in advance!
The fan is not the issue, i hooked it up to 5V and spins like a charm.
PS: I have attached the whole MB schematics !
Edited by onlyprinzp, 09 March 2017 - 10:35 AM.