Brand New Computer CPU Usage High?

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I am having a problem. I built a gaming computer on 6/24/15 and it was working fine that day. Playing games at 300 fps and stuff like that. But yesterday 6/25/15 I tried to play a game and was getting 30-70 on a game I get at least 300 on. The only thing I notice is that the cpu usage is wayyy too high for it being a brand new computer. On my other computer I get like 20% while playing this game and the CPU in my new computer is wayy better than the other one and I'm getting anywhere from 40%-70% while playing a game. Any ideas? Tips? Advice? Should I just factory reset the machine and see if that fixes it? Thanks for reading
 
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1LiquidPC I still have my old pc and the new one I'll list the specs of both

Old PC:
PGU: GeForce GTX 650
CPU: AMD A8-5600K APU 3.6 GHz (stock cooler)
Ram: 16gb DDR3
HDD: 1tb
Forgot what motherboard I have

New PC:
GPU: Geforce GTX 960 SC
CPU: Intel i5 4690k 3.5 ghz (Hyper 212 for cooling)
Ram: 8gb DDR3
SSD: Samsung 120gb
HDD: WD 2tb
Motherboard: MSI Z97 PC Mate
I have 5 fans placed in the case of this computer as well and the highest the cpu temp has gotten is 63 degrees C. and the system itself 37 degrees C. And I have checked for updates on the motherboard, cpu, gpu, windows, everything and they're all up to date. Would a HDD error cause high cpu usage? Because I installed windows on the SSD not thinking about the fact that I only have 120gb's on that and anything I install will be installed there so I went into the regedit and changed the default location of making accounts to the 2 tb HDD I have in it so I created a new account and am using that one so that when I install things like games and stuff it is installed to the HDD and not the SSD is that where I went wrong? And the only game I'm playing on it atm is League of Legends and the first day of having the computer I was around 400 fps and now its down to 25-70 fps because the cpu usage. Thank you for reading and commenting. First person to do so and I've posted this twice. If you can give me any advice it'd be much appreciated. This is my first build technically so I'm still pretty noob
 
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1LiquidPC I still have my old pc and the new one I'll list the specs of both Old PC: PGU: GeForce GTX 650 CPU: AMD A8-5600K APU 3.6 GHz (stock cooler) Ram: 16gb DDR3 HDD: 1tb Forgot what motherboard I have New PC: GPU: Geforce GTX 960 SC CPU: Intel i5 4690k 3.5 ghz (Hyper 212 for cooling) Ram: 8gb DDR3 SSD: Samsung 120gb HDD: WD 2tb Motherboard: MSI Z97 PC Mate I have 5 fans placed in the case of this computer as well and the highest the cpu temp has gotten is 63 degrees C. and the system itself 37 degrees C. And I have checked for updates on the motherboard, cpu, gpu, windows, everything and they're all up to date. Would a HDD error cause high cpu usage? Because I installed windows on the SSD not thinking about the fact that I only have 120gb's on that and anything I install will be installed there so I went into the regedit and changed the default location of making accounts to the 2 tb HDD I have in it so I created a new account and am using that one so that when I install things like games and stuff it is installed to the HDD and not the SSD is that where I went wrong? And the only game I'm playing on it atm is League of Legends and the first day of having the computer I was around 400 fps and now its down to 25-70 fps because the cpu usage. Thank you for reading and commenting. First person to do so and I've posted this twice. If you can give me any advice it'd be much appreciated. This is my first build technically so I'm still pretty noob - See more at: http://www.tomshardware.com/answers/id-2697866/brand-computer-cpu-usage-high.html#16133973
 
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1LiquidPC

1LiquidPC

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OK, lets read through this. Your CPU and system temps look ok, but what about your new GPU temps?. Also, since you mentioned your drivers(GPU specifically) are up to date, is it a different version than what was on during the first days when you had high FPS. I've never swapped account to a secondary drive the way you mentioned, so I can't comment there, though I doubt that this would have a huge affect specifically on gaming performance. For the moment, the only thing I can think that would increase CPU usage related to your HDD would be if you maxed out your RAM usage, and the HDD Swap file was being used, but by that point your PC would be crawling. Is your HDD activity light near solid when w/ the low FPS? I can't rule this out as being the problem though. Since your PC worked fine at first, it seems in some way software related. I would try a different Nvidia driver version than what your currently using if you updated since initial install. If no luck there, since you just installed your OS a few days ago, I would reinstalling again w/ the SSD/HDD configuration you intended to do so that can be ruled out as well.
 
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Sorry for not replying. Figured it out. I installed windows on the SSD then used the Registry Edit to change the default pathway where things download and install so I don't eat up all the memory on the SSD but in doing that I must have created an error on the SSD so my cpu usage was through the roof, did a clean install onto the HDD then transferred the windows install to the SSD using the program on Samsungs website for this exact thing (since I went with a samsung SSD i decided its probably best to use their program specified for doing this) and everything has been running smooth!
 
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