BSOD Attacks

So, in the past few weeks, I had BSOD attacks.
When it started, first there were random attacks, sometimes the blue screen with message about win32k.sys, sometimes my monitor just turns off. It's been 6 months since I reinstalled windows.
I installed many programs to fix windows registers, like CCleaner.. Everything's been fine for a few days, and then when I opened some youtube clip, my monitor turns off again. This was happening for a past two~ weeks, everytime I open some random youtube clip, it's not for every clip but let's say for half youtube clips, like this one NONONO - Pumpin Blood (Official Video) - YouTube .
Yesterday, I reinstalled win7, and it happend again, the same problem monitor turns off, with the same clip as a test.
I've read some topics around, that I should clean the pc and take out each component and return it back. And it happend again.

CPU: Intel(R) Core(TM)2 Duo CPU E7400 @ 2.80GHz
Motherboard: BIOSTAR Group P43-A7
BIOS: Default System BIOS
Total memory: 3.00 GB Usable: 3.00GB
HDD: WDC WD3200AAKS-00L9A0 ATA Device
Sound card: (1) USB Audio Device (2) High Definition Audio Device (3) NVIDIA Virtual Audio Device (Wave Extensible) (WDM)
Graphics card: NVIDIA GeForce 9800 GT
OS: Microsoft Windows 7 Ultimate 32-bit 7601 Multiprocessor Free Service Pack 1

http://www.bleepingcomputer.com/download/adwcleaner/

download from bleeping computer – delete any rubbish these find.

So you think that my system is infected with adware ?

Another one...

And again I open some youtube link...

I tried this
Disk Check
http://www.bleepingcomputer.com/download/adwcleaner/

and it is happening again

bump

Sure, just a.s.a.p please.
Thank you!

Well you are only uploading a single dump each time instead of using the tool as mentioned here,

Blue Screen of Death (BSOD) Posting Instructions

They all point to hardware though,

Code:

BugCheck 124, {0, 85f808fc, 0, 0}

Probably caused by : hardware

Followup: MachineOwner

You can start with this till some hardware guys get here,

   Information

MemTest86+

Run a minimum of 8 passes, preferably overnight, or until errors occur using MemTest86+.

Use this tutorial to help you use MemTest86+:
RAM - Test with MemTest86+