PC computer fans to wall outlet. How many?

[smartwater101]

CRJ DC 12v Power Supply: https://www.amazon.com/CRJ-Power-Supply-4-Pin-Computer/dp/B071FNN9W7/

I have several fans left over from old PC builds. Most are Noctua, NZXT, and a several Corsair. I also have more than enough extensions and splits.

but I'm not sure how many fans I can chain to this...

120mm: https://www.amazon.com/gp/product/B00KF7R49S/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

140mm: https://www.amazon.com/gp/product/B07655KF5C/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

thoughts?


Edit: I see now. 120mm is .1a, and the 140mm is .13a

 

[hotdrop]

Limited by the current on your dc power supply most likely.

 

[TheHarold]

Pretty easy to figure out.

12V 1a power supply.

The 120mm fan you linked is .1a.

1 amp power supply. Fan draws .1a.

10 ;)

 

[dantimdad]

About 10 of the noctuas on that power supply. LOL!

 

[TheHarold]

About 100 of the noctuas on that power supply. LOL!

Nope. Noctua is .1a. Supply is 1a. 10

 

[smartwater101]

Pretty easy to figure out.

12V 1a power supply.

The 120mm fan you linked is .1a.

1 amp power supply. Fan draws .1a.

10 ;)

All I see is 12v listed in the item description. Where do you see .1a? I must be blind.

Edit: I see now. 120mm is .1a, and the 140mm is .13a

 

[ludnix]

Your power supply is rated for 1A current so probably somewhere between 1.5-5 fans depending in their draw. I have seen them from 200ma to 700ma and the listings you posted didn't say. I would look into a beefier power supply with a higher current ratings if you want to run several, or research the exact fans you have to see their current draw.

 

[dantimdad]

Nope. Noctua is .1a. Supply is 1a. 10

Fat fingered it and edited the post and it didn't change. I saw the specs and did the math right. Stupid fingers!

LOL!

 

[dantimdad]

All I see is 12v listed in the item description. Where do you see .1a? I must be blind.

Look at the picture of the fan. Says .1a right on it.

 

[shred5]

Look at the picture of the fan. Says .1a right on it.

Yep it says .1 amp and 1.2 watts.

 

[TheHarold]

Look at the picture of the fan. Says .1a right on it.

I know a bunch about 40mm Noctua fans these days LOL

(From printing)

 

[KorD]

I run two on a 12v power outlet. I have had up to 6 running at one time. but I do see that the more of a load the slower they run.

 

[KorD]

I forgot to add............water and power is fun :)