Last year when I first built my system CPU temps were pretty okay. I would be getting 30C idle and 50C - 60C in games like Battlefront and Battlefield 4 and Arma, pretty much any AAA title, but over time they have gotten higher and higher gradually. For the last six months they have stayed in the high 60C's and the low 70C's. Just a few days ago they seem to have spiked up. In Battlefront they went up to 80C and in CSGO the temp stays in the 80C's with the highest Iv'e seen being 88C. My room is always 60F (15C) given that it is winter where I live. Tonight I used compressed air to completely clear the dust out my system. The radiator to the liquid cooling was fairly dusty. With that being said I started my system up and to my dismay the temps in the games were still in the 80C's but just a few degrees lower on average. Whats wrong? Is the liquid cooling pump declining over time. Its only a year and a half old. I have four corsair fans all at 1200 RPM and I have the radiator in a configuration where it sucks air from the outside into the radiator. so what wrong? Sorry for the long paragraph. Thanks in advance.
Case: Corsair 350d
Motherboard: ASUS Maximus VII Gene
RAM: 16gb Corsair Dominator Platinum 2133mhz
CPU: i7 4790K 4.4ghz
GPU: GTX 980 Ti (Reference and not overclocked)
Cooling: Corsair Hydro Series H75
Hard Drive: Seagate 2 TB
OS: Windows 10
Case: Corsair 350d
Motherboard: ASUS Maximus VII Gene
RAM: 16gb Corsair Dominator Platinum 2133mhz
CPU: i7 4790K 4.4ghz
GPU: GTX 980 Ti (Reference and not overclocked)
Cooling: Corsair Hydro Series H75
Hard Drive: Seagate 2 TB
OS: Windows 10