Overvolt?

[kendallcschm]

how do i overvolt a 120MM fan.. i just need more airflow out of the thing.. and i need it cheap

[Navi]

I'm not sure that's possible. Assuming your 120mm fan is already running at 12v, and I don't think there's a higher voltage than that in the average pc (just 3.3v, 5v, and 12v if memory serves).

It's possible to undervolt a fan for the sake of silence but that's not what you're trying to achieve :)

[AmuseMe]

Originally Posted by Navi

I'm not sure that's possible. Assuming your 120mm fan is already running at 12v, and I don't think there's a higher voltage than that in the average pc (just 3.3v, 5v, and 12v if memory serves).

It's possible to undervolt a fan for the sake of silence but that's not what you're trying to achieve :)

Isn't 7V in there somewhere?

[Sushi Warrior]

Originally Posted by AmuseMe

Isn't 7V in there somewhere?

7V doesn't come naturally, you can get that by bridging 12V and 5V but it isn't in there naturally.

[Zero82z]

Originally Posted by kendallcschm

how do i overvolt a 120MM fan..

You don't, unless you want to burn it out.

If you really want to be stupid, ground the fan to the -12V rail, but be prepared for some fireworks if you do that. Fans tend to not like being run at twice their intended voltage.

[Lyle Chipperson]

Originally Posted by kendallcschm

how do i overvolt a 120MM fan.. i just need more airflow out of the thing.. and i need it cheap

How cheap is a decent fan? You'd have to assume that overvolting a fan is at the very least going to burn it out quickly, assuming it doesn't cause a fire or something horrific. How many do you need? I'm sure people with more experience than I could suggest some quality brands. Scythe are apparently very good, but some of their stuff is more centered around quiet airflow. If you're using a stock fan though, this would probably be a very good upgrade, or check out Noctua.

More suggestions are probably necessary, but just think that overvolting things that are meant to be overvolted can kill their life. I imagine that a cheap fan wouldn't last long if it lasted at all (note: fire).

[kendallcschm]

Originally Posted by Lyle Chipperson

How cheap is a decent fan? You'd have to assume that overvolting a fan is at the very least going to burn it out quickly, assuming it doesn't cause a fire or something horrific. How many do you need? I'm sure people with more experience than I could suggest some quality brands. Scythe are apparently very good, but some of their stuff is more centered around quiet airflow. If you're using a stock fan though, this would probably be a very good upgrade, or check out Noctua.

More suggestions are probably necessary, but just think that overvolting things that are meant to be overvolted can kill their life. I imagine that a cheap fan wouldn't last long if it lasted at all (note: fire).

im getting the odd feeling that people here thinks its a bad idea... perhaps my fans are fine the way they are... lmao