something weird has been happening to my computer the last few days. A few days ago I switched my computer on and it botted fine but there were lots of blue lines and other weird colour shapes on the monitor, very soon after boot it froze and so I reset my computer and the same happened again but with slightly different colour and shaped artifacts but this time it froze but the mouse was still able to move across the screen, not move but jump and no icons were responding.
I took the side panal off my computer and resitted the ram, the GPU and cleaned and dust I could see. I swithed it back on and still had the same issue but this time I had the dreaded blue screen of death with a message saying "memeroy dumped ....". Next, I took the ram out and tested each sticjk on its own and still had teh same probelm so knew it wasn't the ram. Think it may be dust I cant see I went out and purchased a can of air to dust and unseen dust hidden away in the nooks and crannies of the GPU. I did this yesturday, switched my computer on and it was working fine all night but today I come home and it just did the same thing again after trying to listen to some tunes on indows media player, the computer froze and wierd artifacts on screen. Just rest it and now im here asking for help and the computer seems to be runnibng fine for now.
This seems to be an intermitent problem as a simple push of the reset button seems to have cured it but I know there is something wrong and this will happen again very soon.
Could this be a faulty GPU ( which is what I think it is ) or a faulty CPU, PSU or something else ??? Like I said, I tested the RAM and still the same fault with each stick (3 sticks in total) and I cleaned all the dust from GPU and CPU and PSU, now im stuck as to what to do next.
My spec is
CPU- E7300 or E740
RAM- 3x1GB Kingston
PSU- Atrix 650W
Mother board- ASUS P5N-E SLI
I also ran some temp tests with Rivea tuner and nothing seems to be over heating. CPU 35 degrees and GPU 70'ish degrees but I believed this GPU is ok to run at this temp.
Thank you for looking and hope you can help.