Air Duster

Wasn't sure where to post this, so I apologize if this isn't the right place to ask. Anyways: I recently bought two of these air duster cans, planning to finally get some dust out of my pc. However, didn't initially think about the fact that using these inside might be dangerous, after all it is...

Well I have a custom built computer that I didn't build myself and it seems like I have to buy these ever month - https://www.walmart.ca/en/ip/Emzone-Air-Duster-284g-10Oz-2-pack/PRD7IYKTZ6LZE2T Is there something else I can buy for a custom built computer such as below that would be cheap maybe...

Will my Intel Dh61bf Motherboard support a gtx 750 ti of zotac please help my other specs are i3 3220 4 gb ddr3 ram 1 tb hdd and geforce 210

Hello community, I am having a hard time overclocking my Amd FX-8320. I managed to get it to 4.4 GHz and it was stable with 30 minutes on prime95 and I had an maximum temperature of 61* C, but every time I put the pc into sleep or sometimes even when starting the pc up, I get a black screen or...