Couple of questions regarding case cooling and airflow before I finalize my build.
Gigabyte GA B250M motherboard, Intel i7 6700 CPU, 8 GB RAM, 256 M.2 SSD, 1 TB HDD, no dedicated GPU.
I have a Coolermaster RC344SKN2 case with the 120mm stock front fan which came with it, I assume this fan draws cool air in, haven't switched it on yet.
I have a Raigintek Aidos black adition CPU cooler with its stock 92mm fan.
1. Most stock CPU coolers suck air from the case and blow it on to the CPU, but there are a lot of opinions to let it suck air from the CPU and blow in to the case, your opinion?
2. Apart from the 120mm front fan and the CPU coolers fan, do you think I should get another fan or 2? The case can take a 90mm at the back and a 80mm on the side.
3. What's the best way to keep the case clean of dust? If the best way is to install more fans then I'll do it, even though I want to keep the noise as low as possible, any aftermarket even DIY filter options?
My thinking is since the front fan will draw cool air in, I should get a fan for the back to blow the hot air out the case.
I think then it will also work best if the CPU fan suck hot air from the CPU and blow it in to the case, the hot air coming from the CPU will then also be blown out the back.
If this makes a difference, the PC will sit on the floor in my study which is relatively cool all year round, it won't be in a corner and will have at least 20 - 30cm of clearance all around it.
P.S. what is the safest way to clean the inside of a old PC to get the dust out? I presume a vacume cleaner or blower is too strong and will be bad for components?