Jump to content
Search In
  • More options...
Find results that contain...
Find results in...

Fan count limit on a single header - please check my understanding

Wobblycogs
 Share

Go to solution Solved by Origami Cactus,
8 minutes ago, Wobblycogs said:

Thanks all.

 

Don't worry I won't be trying to cram ten or twenty fans in the case, there wouldn't be space for anything else.

 

I threw one of these powered splitters (CA-PWM-03) in the basket when I was getting the rest of the bits because I assumed that I would need extra power but I think I'll look for an unpowered splitter now.

Unpowered would work fine yeah

I've just bought myself an Asus X570-F motherboard and it's got two 4-pin case headers, each one can supply 1A @ 12V.

 

I'm looking at populating the case with Noctua NF-F12 or NF-P12 fans, 3 at the front and probably one at the back. Looking at the spec for the fan it says they draw 0.09A max, that would seem to imply I could theoretically run ten from a single header (assuming I could find a splitter). Is that correct?

 

I assume I'm good to run three of these fans off a single header? Are the Noctua fans particularly low power or something?

 

Thanks.

Link to comment
Share on other sites

Link to post
Share on other sites

Correct.

F@H
Desktop: i7-5960X 4.4GHz, Noctua NH-D14, ASUS Rampage V, 32GB, RTX3080, 2TB SX8200Pro, 2x16TB Ironwolf RAID0, Corsair HX1200, Thermaltake Overseer RX1, Samsung 4K curved 49" TV, 23" secondary, Mountain Everest Max

Mobile SFF rig: i9-9900K, Noctua NH-L9i, Asrock Z390 Phantom ITX-AC, 32GB, GTX1070, 2x1TB SX8200Pro RAID0, 2x5TB 2.5" HDD RAID0, Athena 500W Flex (Noctua fan), Custom 4.7l 3D printed case

 

Asus Zenbook UM325UA, Ryzen 7 5700u, 16GB, 1TB, OLED

 

GPD Win 2

Link to comment
Share on other sites

Link to post
Share on other sites

Yes, 3 fans per header is the usual wisdom, but these fans, i would put 5 of those.

 

Yes, these are some real low power fans, usual fans draw 0.2A.

I only see your reply if you @ me.

This reply/comment was generated by AI.

Link to comment
Share on other sites

Link to post
Share on other sites

3 should be fine, definitely wouldn't want to try 10 haha. 

CPU: AMD Ryzen 5 2600X  |  Cooler: Cryorig H7  |  Motherboard: MSI B450 Mortar  |  Case: Fractal Design Meshify C Mini  |  RAM: Team Vulcan 16GB  3000MHz  |  GPU: EVGA 1070ti Gaming (Kraken G12 Watercooled) |  PSU: Corsair TXM650  |  Storage: Samsung 860 EVO 500GB + WD Blue M.2 500GB  |  Network Card: Asus PCE-AC56  |  Monitor: Acer Nitro VG270U  |  Audio: Sennheiser HD6XX + Schiit Fulla 2

 

Laptop:

Lenovo s540:  CPU: AMD Ryzen 5 3500U  |  RAM: 8GB DDR4 2666MHz  |  GPU: AMD Radeon Vega 8  |  Storage: 256GB NVME SSD

 

Other builds:

Spoiler

Workstation 1:

CPU: AMD Ryzen 7 2700X  |  Cooler: NZXT Kraken X62 Rev 2  |  Motherboard: MSI X470 Gaming Pro  |  Case: Corsair Crystal 570X  |  RAM: Corsair Vengeance LPX 32GB 3200MHz  |  GPU: Nvidia Quadro P5000  |  PSU: Corsair TXM750  |  Storage 1: WD Green 120GB  |  Storage 2: WD Blue 1TB  |  Storage 3: Seagate Barracuda 4TB  |  Monitor: LG 27UD68

 

Link to comment
Share on other sites

Link to post
Share on other sites

Thanks all.

 

Don't worry I won't be trying to cram ten or twenty fans in the case, there wouldn't be space for anything else.

 

I threw one of these powered splitters (CA-PWM-03) in the basket when I was getting the rest of the bits because I assumed that I would need extra power but I think I'll look for an unpowered splitter now.

Link to comment
Share on other sites

Link to post
Share on other sites

8 minutes ago, Wobblycogs said:

Thanks all.

 

Don't worry I won't be trying to cram ten or twenty fans in the case, there wouldn't be space for anything else.

 

I threw one of these powered splitters (CA-PWM-03) in the basket when I was getting the rest of the bits because I assumed that I would need extra power but I think I'll look for an unpowered splitter now.

Unpowered would work fine yeah

I only see your reply if you @ me.

This reply/comment was generated by AI.

Link to comment
Share on other sites

Link to post
Share on other sites

The Silverstone PWM hub may be cheaper than that splitter and can be mounted more cleanly if that matters for you.

Link to comment
Share on other sites

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share


×