Mysterious fault on newly built pc

Lolertron

Honorable
Sep 19, 2013
11
0
10,510
Hello everyone, i have recently built a new pc from the ground up, however a very odd and baffling problem has came up. The PC will intermittently start to hang for a moment and follow with a complete freeze, soon after requiring a hard boot. if im lucky enough to semi recover from the hang my mouse icon will start to display the incorrect icons depending on where it is say on a webpage.
ive triple checked everything on the bios to see if everything is running the way it should, naturally everything says the way it should be.
ive done a memtest with 60 passes all passes, check the graphics card no problems (especially since playing games on max setting never provoked the symptom)
did a processor check with speed test, all passes, the HDD is only a year old so nothing wrong there.
Ive checked system monitor while the problem arises and all cores go no higher than 50* C, and the fan only speeds up slightly. im hardly using more then 2 gigs of ram space at a moments notice. another odd one is occasionally when i hard power off the fan speed goes incredibly fast for a fraction of a second right before it powers off.

What the hell can it be?

heres my specs:

Asus P8H61-MX USB3 Socket 1155
Intel Core i7 3770K 3.5GHz Socket 1155 8MB
Corsair (2x4GB) DDR3 1333MHz XMS3 Memory Kit CL9 1.5V unbuffered
windows 7 64bit home
 

Lolertron

Honorable
Sep 19, 2013
11
0
10,510
Whats funny is it never hangs or locks while gaming, i can play for hours and hours and i do so on the highest settings possible. it seems to happen most when im browsing the net via firefox or internet explorer or if its let to idle after a random period of time. when it locks up on idle the monitor will not even power back on to display anything.
its also done so while talking to people on skype it left skype running properly in the background with a locked up display but eventually it just stopped that as well.

i get a feeling that if i have it perform heavy file transfers or compiling a program that it invokes the hang/freezing. but i am not sure considering i rarely do that.

i forgot to mention i have performed a clean install of the OS encase of a bad driver or something. also the board has been replaced previously with the same model because i was hoping that was the issue.
 

Safoux

Honorable
Sep 18, 2013
26
0
10,530


What about a malwarebytes anti malwares check?
 

Lolertron

Honorable
Sep 19, 2013
11
0
10,510
I've used spy-bot to check for any problems and found Delta toolbar installed, removed the infection rescanned with both spy-bot and malwarebytes the infection is gone however the problem still persists. i doubt the infection had anything to do with my symptoms. im sure everyone understands my level of frustration.