Solved Suddenly fps started jumping high and low

September 1, 2017 at 18:37:17
Specs: Windows 10
Hello, to give you an idea what happened to my pc I'll start with the whole story, my HDD was dying as a guy with more knowledge about hardware told me, pc was lagging on everything, even on desktop trying to move my mouse was a pain, I took my pc for repairs and ended up changing the HDD, new HDD I have is 1 TB Toshiba, I know it's not great but it's the best I could afford right now(I'm a student, I do not have good income). they also installed windows 10, I had win 10 before as well, so after getting my pc back everything seemed to work fine I had no problems with my pc whatsoever for like 2 days(100+ fps on ultra in overwatch), well everything seemed great and I was content since my pc started working fine again, I just decided to get a nap and left the pc on sleep mode, when I woke up I restarted it and wanted to play overwatch again, usually what I got was around 43 fps and it was dropping down to 20ish and really rarely going up to 60 for a second then going back down again, it felt like I was playing on a dying pc.

Stressed GPU: everything went fine, except when I first got it max temperature I got was 70c and now it went to 81
Stressed my CPU and it had great results, 0% throttle as well.

I have : i7-6700CPU 3.40, 3.40 ghz
Ram: 16GB
64 bit system, win 10
Geforce gtx 960
1TB HDD from Toshiba, I used to have 2TB hdd from toshiba as well which worked fine for longer than 4 years, I couldn't afford to get better one, but was thinking of getting an SSD for windows and leave 1 TB for D disk, in about 2~3 weeks, but I have no idea what to do now since I have this problem, any help would be greatly appreciated, I have fps drops in every single game including simple games such as league of legends for example.

EDIT: I'd also like to add that, after realizing pc got slow again I decided to reinstall windows myself and see if it worked in any way, I used recovery options of win 10 and deleted everything to start from fresh, still the same problem.
EDIT#2: I benched my CPU again and what I got was 28.1 on single thread(isn't this pretty low?) when I used compare function on cpu-z it was said that single thread should be around 400 and 1.9k on multi thread(with compare function, 2.2k was written on 6700) I have no idea what it means tho. so any help is greatly appreciated

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September 1, 2017 at 21:30:23
✔ Best Answer
You do not give a lot to go by. Here are some possibilities to look into and some questions to help us find out more information on it.
First, If your reinstall was to the original manufacture's install the you would have a lot of junkware from the factory install. If this is the case you may need to check in Task Manager to see what programs are using CPU and memory during idle. You may find that many of these are factory installed programs that you do not need or programs that you might use occasionally that do not need to be launched with Windows. Once you identify the programs that are running you can Google them to see what they are, what they do, if they are necessary, decide if they can be uninstalled or not. If you cannot uninstall some of them or would like to keep some of them the next step after uninstalling the ones you can is to open the program and see if they can be set through their settings to NOT launch with Windows which means that they will open only when you click on them and close completely when you X them out. If not then there are programs that will do this for you (I believe CCleaner has this tool).
Another thing you need to do is to make sure that all of your drivers are up to date. Get drivers from the system manufacturer of form components added (or custom systems) from the component mfg. except that you would get your graphics driver for the GTX960 from NVidia directly.
You should install HWMonitor (if not already) and reply with the internal temperatures of your system to make sure that heat is not the issue. Also while you are there, please report on your major voltages (12V, 5V, & 3.3V rails) to make sure that they are within 5% of their nominal values. On a similar point, please let us know the make and model of your power supply and/or at least all of the individual Amperage ratings for each of the major voltages so we can be sure that your power supply is sufficient for your system.
A list of your other components (or system make and model number) as well would be helpful.

You have to be a little bit crazy to keep you from going insane.

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