Based on your description, it seems that you have several steps I was going to advice. At this point, I would recommend you taking the motherboard outside of the chassis in order to discard any overheating problems.
Also, I recommend you running the Intel® Processor Diagnostic Tool. This is software that diagnoses the internal components of the processor and will let you know the state of the unit. You can get it at the following link:
Testing a different heat sink and testing it in the CPU header helps as part of the troubleshooting steps but if the issue persists after doing these steps, you should contact your Intel® local support for them to help you out with replacement if necessary.
Okay so ive tested the processors using the tool, it fails the test due to overheating. I had to abort the test because i feared it would burn out the CPU as all cores were going into the 80's.
However it seems to only be having this trouble in high end games like battlefield in games likes league of legends its fine but obviously there is a huge different in work load on what BF gives the processor and what LoL give the processor, so could it actually be the fan itself that is the issue here? or do you think it is definitely the processor?
Also if my warranty has run out or no longer available is there any other way I could get my Intel unit replaced (without paying £259) obviously as a really just dont have the money it would take me months to save up that kind of money.
Testing another Heat sink fan is in fact a very good option at this point. So If you have the possibility to test a different fan go ahead.
In regards the warranty, Intel® provides 3 years warranty from the moment of purchase on processors. If the unit was purchase less than 3 years, I recommend you contacting your local support so they can help you with the replacement if necessary.
indeed, ive gone over it in my head multiple times, the only conclusion I can come to is that the processors overheating issue damaged the cooler due to the heat level getting so high and burning through the heat sink, the stock cooler served me well for 2 years though. I also believe that if it was the processor that was at fault i believe id be seeing higher idle temps than 32 max. it preforms fine in nearly most of my games, except for the higher end games like starcraft 2 and battlefield in which they tend to put a much heavier load on the processor and without the thermal paste the load caused the processor to overheat. I am at least 90% sure this is the issue now, with any luck ill have this solved by next Thursday.
this is the cooler I intend to buy, it comes highly recommended to me by some old colleagues over at dell and is a great bargain (if its as good as ive been told, due to its price). what do you think?