Question Server Fan for normal pc

[austiny20]

I understand that server fans draw extreme amounts of power and are extremely loud, and are completely unnecessary for something like my build.
However, I still would like to have one in my system just for the funnies. I'm most likely going with a delta fan that draws 12VDC with PWM support, so 4 terminating leads. How would I hook this fan up?

 

[Lutfij]

I understand that server fans draw extreme amounts of power and are extremely loud, and are completely unnecessary for something like my build. However, I still would like to have one in my system just for the funnies.
Simple answer = Bad idea.

Make and model of your motherboard and the fan in question? If your motherboard is unable to deliver 2A worth of power off one fan header, then you can study PWM fan splitters that rely on supplemental power from a SATA/molex connection. Meaning you provide power from the PSU's side(instead of the motherboard) and you derive PWM signaling from the fan header off of your motherboard.

 

[Paperdoc]

OP asked, "How would I hook this fan up?" First thing to understand is that the newer design of PWM fans for computer cases is a particular version of fans that require particular things from their power supply. The normal SYS_FAN or CHA_FAN header on any modern mobo will do exactly that, so THAT is how how you "hook them up".

Most computer case fans need power at up to 12 VDC, and consume current at 0.10 to 0.25 A max. Higher-power fans from computers may use closer to 1 A max. Now, any mobo header for fans can deliver power to a fan at up to 1.0 A max current (a few can do 2.0 A - check the specs in your mobo manual), so normally you can hook up ONE fan to a header with no issue. If you are trying to connect MORE than one fan to a header, or IF you have a fan with REALLY high max current, then this requires a fan HUB that gets its power directly from another source, the PSU, as Lutfij says above.

 

[austiny20]

I understand that server fans draw extreme amounts of power and are extremely loud, and are completely unnecessary for something like my build. However, I still would like to have one in my system just for the funnies.
Simple answer = Bad idea.

Make and model of your motherboard and the fan in question? If your motherboard is unable to deliver 2A worth of power off one fan header, then you can study PWM fan splitters that rely on supplemental power from a SATA/molex connection. Meaning you provide power from the PSU's side(instead of the motherboard) and you derive PWM signaling from the fan header off of your motherboard.

Ah i forgot to provide specs, sorry.
I have the MSI B650 Pro Wifi, and the fans I'm looking at draws 7 amps..

 

[USAFRet]

A "server fan" doesn't provide any magical benefits over regular PC case fans.
Detriment - louder.

All fans are there for is to move air through the case.

 

[Gururu]

I put two of these Small server fans behind the screen in the photo. Smallest I could find for the location (3.5" drive bays). They are loud but don't bother me since I keep my computer on the floor.

 

[bill001g]

Do you really mean 7 amps or .7 amps. Are you talking about those 40mm fans that run at high rpm and noise. Although you likely could power most from a motherboard header a lot of these are designed to only run at full speed. You are better off just getting some kind of power adapter and running them off the power supply directly. You don't see molex connections on power supplies as much but there were a lot of fan adapters that came with molex connections.

I find the pitch of these type of fans extremely irritating.

If you really have a 7 amp fan your only option is to power it off the power supply. Not sure how you would control the speed even if the fan supports it. Most fan controller can not pass that much power.