James, there are several factors that you have mentioned that could be causing your problem. First and foremost it could be a heat issue and lack of air circulation inside of the computer beneath the logic board. If you have access to a small air compressor, close the lid and look for the air vents along the back edge of the laptop. Use the compressor to force air through the back side of the laptop. This should open the air vent grills inside of the computer to allow cooling air to pass through. If this does not work, then you need to remove the logic board and clean all of the dust out, in particular the the grill of the heatsink bracket. Once done then clean the heatsink compound of both of the heat sink pads and also the logig board and replace it with new Arctic Silver Heatsink compound. If you have already done this and you are still having a problem, I would then seriously suspect bad RAM chips. These will go bad and cause all of the same issues. Replace them one at a time with known good ones. I'm sur...
I have had very similar problems with this model of MacBook Pro's. One thing I have found, I know this sounds a bit ridiculous and I have the hardware to prove it, the Ram memory chips seem to fail in these MackBook Pros rather frequently. In particular the Samsung variety. Replace them one at a time, starting with the bottom slot. Chances are very good this could be your sneaky problem. Ed
I have found that the clicking noise sometimes is because of a bad memory stick. Pull the memory and replace only one. Repeat with the next one. Still have the noise.? Try the other memory slot and repeat the proceedure. Sometimes just a cleaning of the memory sticks conecting pins with WD40 will work wonders.
I have found that BAD memory will cause this issue. I have no idea why. Do this, pull the memory one at a time, then replace one at a time. If the funny noise goes away whenyou restart, replace the bad stick of RAM.
I have found the same issue with Window PCs It always comes down to the fact that you need more memory. At least 1 GB ram This normaly takes care of the laptop speed issues such as downloading and playing video streams. Ed
I have found that a very thin clear peice of plastic, like the kind you will find on battery sale packs, will work. You need to cut out the flatest part of the plastic and also cut it to size for the width of the cable. Be sure it will fit between the holder and the lodgic board. Now insert the keyboard ribbon cable and push the clear plastic under the cable, between the logicboard and the cable. It will fit very sngly, then tape it in place. Ed
A helpful tool needed is an X-ACTO hobby knife. The blade is small enough to fit into the DVI port hole. Once in the port hole us a bit of pressure on the knife against the improperly placed screw. Now use your screw driver and see if you can reverse the screw out. A powerful magi net could be helpful also to help pulling the crew out. If none of this works, then you will have to disassemble the whole top palm rest and keyboard assembly. Using the ifixit guide follow the steps to remove the LCD Data cable noting steps 14 through 17. You should be able to push the screw out this way Be careful you do not cut the Data cable with the hobby knife! I have done this myself a couple of times and it is very exasperating. Just be sure the next time to look very closely at the holes to make sure you are putting the screw back into the right one. Ed Update: I happen to have a PowerBook logic board that I just looked at. The two holes on either side of the port can be screwed out. These are just screwed into the DVI port...