GPU stuttering

Computer GPU Stuttering

So, I've been getting stuttering in my computer since 2 days ago. I searched on Google about the problem for the past few days.
I did chkdsk, reg clean, defragmenting, disk cleanup, virus scan, turning antivirus off, reinstalling drivers, updating drivers, unplugging USB devices, monitoring hardware. I could not fix it.
Whenever I play a game/video/load gui/music/scrolling files/browsing web, I get normal frames but every few seconds, the computer will freeze everything except the mouse cursor for 1 second or so, then return to normal, this issue is extremely frustrating as I can not find what problem is causing this. After awhile, I found that something is going on with my GPU, when I run a game or something that requires the GPU to load, the GPU usage will stutter from 99%/100% to 0% for a second, freezing the whole computer. anyone know what is happening? Yea I tried underclocking and overclocking the PC as well even changing resolution, anyone know?

Screenshot:

PC Specs: My signature

 

Temps?

Sounds like it is throttling to me.

 

GPU stock clocks Idle temp: 30-42
GPU Overclocked Idle temp: 35-45
GPU stock clocks while gaming: 70-76
GPU Overclocked while gaming: 70-86

And for the past year I had the laptop, it did not do this till 2-3 days ago

 

CPU temps more importantly?

It may not be GPU, because if you alt tab out of a game the GPU load will drop like that so it sounds like the system could be playing up. Have you made any changes to hardware since this happened? I am wondering HDD maybe.

Run a MEMTest and a HDDTune health check.

 

Wow I have the same exact problem as yours, and I posted this two days ago!! From what I observe it's definitely A HDD problem not GPU.
See my thread: http://forum.notebookreview.com/asus-gaming-notebook-forum/686774-need-help-g73sw-freezes-every-few-second-like-crazy.html

 

It does, run a health check and then if not run a latency check. Might be time for a nice new SATA III SSD

 

Hmm, so my HDD hybrid is failing? O_O How much more time before it fails? I'm getting a Asus G75 in November. I do not want to lose any of my data.

EDIT:
How do I know which of my HDDs are failing? I will evacuate the data there and put it to the other drives. I have 3 more drives.

Well, I could play Happy Wheels which is a flash game. So, what does HDD error actually cause, I think it may not be it.

 

As above run a HDDtune health check and a Latency check. It may not be that you need to diagnose the problem.

 

I can almost confirm it's HDD failure.
I just found a thread with similar issue: ST95005620AS very laggy in games - Seagate Community Forums

 

ok thanks guys. So what do I do to find the defective Hybrid drive in my PC? Unscrew them one by one and play a game? LOL

 

I assume you have a secondary HDD installed on the other slot right? Swap them and do a complete clean install see if it works normal.
I'm having the same exact issue as you...If I were you I'll probably stay away from Seagate drive.

 

Problem solved, I changed the drivers of the Drives to SD26 because I've been told that it will fix the problem, sure enough, it did, though my drives will work a little slower than usual, it does not stutter anymore. Thanks for the help anyway guys.

 

So Seagate HDD's reading head parking feature was failing I guess.