This is my first post on this site, so as a little introduction I'm Clayton from Leicester (UK) :-) and I'm hoping someone will be kind enough to help me.
I'm using my mobile phone to write this post because my computer isn't stable enough to use, which leads me to my problem...
Whilst playing Call of Duty MW2 a couple of days ago my computer crashed - lots of undesirable dots and patches appeared on screen, before sound distorting and the screen going completely grey, then not long after my monitor lost signal, I had to restart. Similar crashes had happened in the past during gameplay (allways cod mw2) so I assumed it was a software issue, however this time, on restart, even before the op system had a chance to load (on the ASUS mobo screen) the patches remained and the computer failed to boot. Worried, I restarted again, I had the expected option of loading in safe mode but I chose to run normally, it started up but after playing aimlessly on the internet for 5 mins the dots appeared, then the screen went grey and I had to restart.
I've had a little play around... I've discovered the error also occurs in safe mode. I've found out that music will carry on playing during/after the error, but I'm fairly certain the computer is completely unresponsive (combinations of alt + f4, enter, alt + tab, windows + d, don't shut down the system or stop the itunes music). I don't think there's anything else I can report. I am not particularly computer literate but I am confident with some aspects, however I couldn't tell you any temperatures without guidance.
I've owned the pc for around 20 months, but only got 1 year warranty from purchase. As far as I can think, the only problems I've ever had were while playing Call of Duty from around February, but now the error is completely random and not game related.
possible relevant specs of the computer I am running are:
Windows 7 64bit
AMD Phenom 9950 X4 processor
8 GB corsair XMS2 800mhz RAM (4x2GB sticks)
PowerColor ATI Radeon HD 4870x2 2048MB graphics card
ASUS M3A32-MVP deluxe mobo
800W quiet Quad rail PSU
Soundblaster X-Fi Xtreme music 7.1
I suspect either a RAM problem, or graphics card, but like I said, I don't have the knowledge to assess further than this. I've looked all over google for similar stories but havn't had any luck.
Thank you to anyone who takes the time to help me out, luckily I have this phone to check online for any advice.