I've been experiencing issues with my old MacBook Pro, early 2011, A1297.
- It started showing some vertical stripes, but resetting the PRAM did help.
- Some time later it ran into RAM issues, but removing one of the modules resolved this.
- And now Apple Hardware Test has detected an error 4SNS/1/40000000:VDOR-18.507
In addition to the error, the MBP feels hot and I can barely hear the fan. I think they should run much faster. I am guessing it is some temperature or fan sensor.
I tried to ask on Apple's official forum, but it displays Access Denied, so I gave it up.
How can I fix the issue?