Apple extended hardware test error codes & unexpected shutdown
As you can see from the description above I have unexpected shutdown issues, I ran the Apple extended hardware test and got the following two codes:
4SNS/1/40000000: TOOP and
I did some online sleuthing and all I could find out was that the first error code above relates to a system temperature sensor for the optical drive, does this mean that the optical drive temperature sensor needs to be replaced?
As for the second error code all I could come up with is that it relates to a fan, possibly the optical drive fan, but I could be wrong.
I am guessing that these two error codes may be the reasons for the unexpected shutdowns.
Any suggestions, help and solutions will be greatly appreciated.