Question How much downward air is safe for a PC motherboard? How much CFM is 2 much?

[reaper89971]

I am wondering how much CFM would be 2 much if the fans were blowing down at the motherboard into the case.

 

[USAFRet]

I don't think there is a number that would be "too much".
Not in any consumer buyable space.

The only consideration might be budget.

 

[reaper89971]

I don't think there is a number that would be "too much".
Not in any consumer buyable space.

The only consideration might be budget.

Thanks for your reply
Thats good to know.

 

[USAFRet]

Thanks for your reply
Thats good to know.

I mean...if you put it in a NASA wind tunnel, maybe you'll have problems.

 

[TheHerald]

You mean physically damaging the motherboard due to the airflow? LOL, I don't think there are any off the shelf fans that can do that. Not even the 6k rpm industrial delta fans can do that.

 

[reaper89971]

You mean physically damaging the motherboard due to the airflow? LOL, I don't think there are any off the shelf fans that can do that. Not even the 6k rpm industrial delta fans can do that.

that was exactly what i meant
Thanks for your reply

What if i used one of these heavy equipment coolers there crazy powerful. I have used them in a pc but not blowing directly down at the components
https://www.parts-express.com/Therm...0mm-Sleeve-Bearing-176-CFM-250-026?quantity=1

i use those along with these something like this to power it.
https://www.ebay.com/itm/4030725777...s7UnbqRYevVv4RZXa7apt7P4UNnHJ6aL04dTLBLzhbewE

 

[Gururu]

Just make sure all the wires are secured well and that the large air flow isn’t opposed to air flow generated by the CPU or GPU fans.

 

[80251]

that was exactly what i meant
Thanks for your reply

What if i used one of these heavy equipment coolers there crazy powerful. I have used them in a pc but not blowing directly down at the components
https://www.parts-express.com/Therm...0mm-Sleeve-Bearing-176-CFM-250-026?quantity=1

i use those along with these something like this to power it.
https://www.ebay.com/itm/4030725777...s7UnbqRYevVv4RZXa7apt7P4UNnHJ6aL04dTLBLzhbewE

Where are you going to mount that 150x50mm AC fan? I'd figure it's too big to be mounted to any heatsink or radiator. You can get 150x50mm fans in +12V DC. The Delta AFC1512DG +12V 150x50mm produces even more CFM (259 cfm) than the 150x50mm AC fan you listed.

I never realized they made such large fans w/sleeve bearings either. I'll bet it's loud too.

The downside to using that AC fan is I don't think you'll be able to control the RPMs, so it'll be running full speed whenever it's on.

 

[bill001g]

I suspect it is extremely high number. You can find a large number of videos of people doing stupid stuff.

linustechtips and jayztwocents have done these type of videos. These guys tend to have mostly have serious content but do stupid stuff. I know jay was using a leaf blower