[SOLVED] What's wrong with my computer?

[imahuman118]

My computer heavily lags whenever I load a game and a youtube video simultaneously. I've tried swapping my graphics card and ram with my brothers' and it still lags.
I've checked the drivers are up to date and I'm using my brothers ram.
Nothing is thermal throttling or maxed out on task manager.
Does anyone have any suggestions to fix the issue?

 

[rgd1101]

full system spec? include make and model of the psu

 

[imahuman118]

Hi,
The computer is about 6 years old and the specs are:
i5 4670k
gtx 1060 3GB (this is about 3 years old)
8GB ram
Corsair cx500 (this is about 3 years old)
120gb kingston kc400 ssd

 

[rgd1101]

ram usage?
malware scan?
check cpu/gpu temp during heavy usage?

 

[imahuman118]

ram usage?
malware scan?
check cpu/gpu temp during heavy usage?

It's only using 4-5gb of the 8gb available and the graphics ram isn't maxed out either.
Reinstalled windows only to have the same problem.
60° CPU which is pretty normal for air cooling I think /40° on the graphics card at 30% fan speed.

 

[rgd1101]

how full is the ssd?

 

[imahuman118]

how full is the ssd?

60gb free, I recently reset windows.

 

[geofelt]

You need sufficient ram to hold all the tasks you are running.
See if you can't upgrade to 16gb.
8gb, it seems to me is too small.
If you are short of ram, look at task manager memory hard fault statistics.
If you see anything other than a zero rate, you are swapping code to the page file.
That is slow.

Then, if your ssd is getting full, there will not be sufficient free nand blocks to do an update and your page resolution time will be higher. And your ssd will wear out sooner.
Perhaps it is time for a larger ssd.