I opened my pc case several days ago to have a look as fans getting noisey and temp up slightly.
Fans, case holes and bits of mobo have lots of dust. I've bought an air duster can. Is it only safe to use it on sturdy items like fans and case holes are is it safe to 'blast' the mobo and generally everywhere? Don't fancy blasting mobo and cpu flying off!!
The air dust can has no instructions other than to unplug pc before use.