how to identify if cpu is damaged

[mrdude000]

i built my cousin a computer about two years ago with a water cooler. the cooler leaked, and he didnt notice the temps untill i looked a few days after he noticed his games lagging. speedfan measured 125 C! im suprised the computer didnt shut it down, the idle temps were about 90... so im thinking that some of the long term issues he has been having with his computer after i replaced the cooler is heat damage from about a year ago (ive been trying to help him for a bout that long...) the gpu isnt the problem, we tried replacing that with no change. im thinking it could be the mother board or the ram too, because the water cooler leaked a little bit, but i dont see how they would be damaged slightly with out being completely destroyed. any ideas? how could i test his cpu?

 

[turkey3_scratch]

Describe "long term issues".

 

[mrdude000]

Describe "long term issues".

all of the games he plays he has to set to low settings, and low resolutions. his games are choppy. he has a ivy bridge i7 (3770k i think?)

 

[FinneousPJ]

I don't think it's likely to be damaged if it works. Look for other factors.

 

[mlga91]

CPUs shut themselves around 100°C, how can you reach 125? post your entire specs.

 

[mrdude000]

CPUs shut themselves around 100°C, how can you reach 125? post your entire specs.

i7 3770k
amd 7970 3gb
3 ssds raid 0
z77 pro-4 m motherboard
gskill 2X4gb ram (8 gb total) 2133 mhz
750 watt rosewill

sorry i know its about 5 months later, i was locked out of my account, so i never knew anyone responded. any chance you could look again?