imac 27 question mark folder and heating up
When I boot this iMac 27, first I get a blank screen for approximately 5 minutes (keyboard not responsive during this time), then I get a flashing question mark folder. I have tried several combinations of key (option + coomand + P + R and command + R) to no avail. I notice that the top of the iMac gets exteemely hot.
Suggestions?
iMac, OS X Mavericks (10.9), unsure about date & version of OS X