Do I have Inadequate Cooling? Processor Running Hot After Redoing Thermal Paste

GNTSquid

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Nov 22, 2014
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intel i7 4790
MSI Gaming 7 z97 mobo
MSI GTX 970
16GB RAM
Windows 10

About a week ago I installed some new RAM (giving me a total of 4 sticks) and in the process I had to remove my heatsink and as a result I had to redo the thermal paste.

Before installing the new RAM I could play on high-ultra settings and according to the MSI Afterburner app my CPU temperature would hover around the mid to high 60's while playing the game. Wanting to double check that a couple months ago I did a test with AIDA64 and again my average temperature would hover around the mid 60's, from what I understood a perfectly safe normal temperature.

Jump to last week after installing the new RAM and reapplying the thermal paste I noticed my computer case felt a little too hot after playing Battlefield 1 so I started digging into my temps again and did some research. I found this guide, http://www.tomshardware.co.uk/forum/id-1800828/intel-temperature-guide.html . Keep in mind though i never checked temperatures for BF1 before I installed the new RAM so I have nothing to compare it too.

As described in this guide I downloaded prime95 v26.6 and Core Temp. Did the test for 10 minutes with temperatures per core maxing out around 75-77c. That seems high but that guide says mid-70's is average. So I went back to play BF1 to see how the temperatures would be according to Core Temp and again they hovered around 75-77c and fluctuating. But the max temp for each core was 78-80c. (Idol temps are around the high 30's)

If you dont know the guide says other temp gauges and stress testers may not be accurate enough and that core temperatures are more important than the CPU temp

I tried it again in a "lighter" game, BF4 and still got the same max core temps.

Now im wondering if I did something wrong with the thermal paste, or if my heatsink isnt adequate enough? I have this HS http://www.newegg.com/Product/Product.aspx?Item=N82E16835608025 .
When I first built the computer I felt like a low profile was better since I have a small mid-tower ATX case and a lot of coolers seemed too large to me. But after talking to some people they said I need a regular sized HS like the Cooler Master 212 EVO or even a small water cooler HS.

Are my temps high? Would it be a good idea to get a newer larger "better" HS? Redo thermal paste? Is something else going on? Should I not play any more intense games until I get this sorted out?
 
Solution
Speedfan and the BIOS itself will tell you what speed it's operating at. If you go on youtube and search "Jayztwocents speedfan" he has a video detailing how to set it up, but if this wasn't a problem before it probably either that there isn't enough thermal paste or the cooler isn't mounted tightly enough
I wouldn't worry too much about 80C, but that's a bit high for that power efficient of a chip on that Noctua cooler. If you want to correct it I'd suggest taking the cooler off and redoing the thermal paste, making sure that you have enough and that it's tightened down adequately and evenly so that the paste spreads out over the whole chip. Are you sure that the fan is spinning up when the CPU gets hotter?
 

GNTSquid

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Nov 22, 2014
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Is there a way to check if the fan speed is increasing, I know the BIOS has something but what about through the desktop? After Burner has some fanspeed controls but those are for the GPU
 
Speedfan and the BIOS itself will tell you what speed it's operating at. If you go on youtube and search "Jayztwocents speedfan" he has a video detailing how to set it up, but if this wasn't a problem before it probably either that there isn't enough thermal paste or the cooler isn't mounted tightly enough
 
Solution