Graphics card doesn't work after cleaning

So yesterday my computer was dusty so i decided to clean it, I used compressed air can. So when i was done i put everything back and started up the computer and i got no signal to the monitor, all fans were running even on the gfx but the monitor was black. So i switched place on the gfx and still nothing, i've change the cpu cooler to the stock Intel one, still nothing, i have checked the ram and still no sign. So what should i do?? Can i get a new Gtx 760 of my warranty? Btw i think my videocard is the problem, what do you think?. Please help!

Be aware that using compressed air (especially if using canned air) can cause condensation causing a short if the card is installed shortly afterwards. In this case warranty would be void. Try without the GTX760 and see if computer works fine (in case cpu has integrated gpu or you have another vga). If so make sure card is dry and retry. If no help try the card in another system.

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