Acer Aspire E1-521 - 4-In-1 Card Function Failure

Troubleshooting 4-14
4-in-1 Card Function Failure
If the 4-in-1 card function fails, perform the following:
Figure 4:10. 4-in-1 Card Function Failure
Start
Replace M/B
Fan cable
Well connected
Fan ok
Connect it well
OK
NG
Replace fan
OK
OK
NG
Thermal
well insert
Insert is well
OK
NG