N660TI 2GB PE/OC - increased temp after cpu upgrade

Question

so its like this, i recently upgraded my cpu from an old 3-core Athlon II to an i5-4690k, and i find that my gpu is running much warmer than it has as long as ive owned it, both in terms of peak temp and average load temp. ive had to adjust the fan profile to keep it cool, which of course makes much more noise. ive also noticed that the outboard fan (closest to the bracket&video out connectors, doesnt even spin unless the fan is set to 86%, which undoubtedly conttributes to the heat problem.
i DID take a can of compressed air to the heat sink and fans while i had my system apart installing the new cpu, but it still has a bit of dust on the underside of the fans that i cant get too, unless i take off the entire heatsink, which im not about to do. case has dustfilters on all the major intakes as well, so its not like suddenly it grew dust bunnies in the past 3 days
settings and such here: hxxp://imgur.com/a/ykjm8 (replace hxxp with http, duh)
 i bought this 660ti the day they came out, so its about 2.5 years old or so. generally speaking, load temp was mid-50s C, or low 60s if its really hot. the absolute peak ive seen in all that time was 76, which is what the scale on the afterburner graph is set at. after installing the i5, load temps (guildwars 2 for sake of exmaple) are are mid-60s, and ive seen a peak of 78.
specific model again is teh msi N660TI power edition/over clock 2gb, (which i guess is one of those that had a voltage regulator bypass, according to tomshardware), gpu bios is stock, latest nvidia drivers 347.52 WHQL, msi afterburner 4.1.0, no overvolting, stock clocks (athlon couldnt keep up with overclocking anyway and it runs too warm to overclock now) graphs are shown under load with guildwars 2, high quality settings at 1920x1080 windowed, vsync@60fps, in characters home instance. the fan profile shown is after i bumped it up, high mark was around 70%/70c at the time.
droping the power level in afterburner to 57% helps the temp a bit, as does underclocking it as far as it'll go. i also have a 12cm fan i could install in my case's side panel, right next to the gpu, to draw air out (cause thats where the gpu exhausts at), i also have another 12cm fan installed at the bottom of the case blowing up towards the gpu roughly in line with the inboard gpu fan.
anything i can do about that one fan? i dont really want to have to run at 90% fan speed all the time to keep it cool (especially with summer comming up, no A/C here, gonna get hot as balls) or is it time to upgrade?

Answer 1

Hi,
I might be wrong here, as I don't know much about AMD CPUs, however I think that your old 3 core Athlon was bottlenecking the GPU which did not let it use its full power.  Now with your i5 Haswell Refresh, it uses its full potential which cause slightly higher temps.
You could reapply thermal paste on the graphics card (done at your own risk) if you don't have warranty on it any longer. If you do, then contact MSI in your country and ask if you can do it (obviously if you damage something then warranty is void)
>>How to contact MSI.<<