aint maintainence supposed to lengthen the life of something?

why is it that for me, anything that I did some maintainence to it end up dead in the end.

take for example my old motherboard GA-M55SLI-S4.. the dusts were somewhat annoying and I took a dust-sucker cloth to clean them.
next thing I know it's dead within less than a day.

so, same goes for today on my 2years old 8800gt. everytime when I play games, the stupid fan spins up to 100% and the noise is irritating. I removed the cooler and cleaned the crap - thermal grease and dusts.

it booted fine at first - as usual. then I played borderlands, and while playing half way the screen  blacked out so I thought maybe it's the overclock of my CPU. resetted the comp and it was fine still. started borderlands again and I went afk. I came back and I saw the screen went black again and this is where my 8800gt went dead.

I thought there might be some short-circuit due to the cleaning but apparently not.
I just hate it when my comp auto-resets due to something bad/faulty.

seems like some durability has been lost quite a bit on this new comp of mine.

again, this is where the weird fate is. everytime I receive my pay, some of the things that I own will turn out dead. like the money I got has to be spent no matter what. can't I just save those fucking money omg..

I am using my dad's 9600GT in the meantime before the motherboard comes back. seems like I can't play much graphic-hungry games for now.