Hey there!
To start here's my setup if needed.
Mobo- Crosshair Formula V
CPU- AMD FX 8320
GPU- Zotac GTX950
Cooling- Swiftech H240x with additional 240
Fans - 7*120's, 3*80's,1*60
Power- Crosair HX850
So I just got these new "Works" fans from Micro Center. There very very loud lol, 240CFM @ 5200RPM at a whopping 64dbs lol. Now I got these cuz if i want the cooling power, I have it. I want to run these off a fan header so there controlled by FanXpert(Asus control software). The problem is, these fans pull 36 watts!! My headers can only do 12W a piece. My thought is to use the fan header to control a Mosfet, So those fans can get power directly from the PSU. I need some help on the circuit. I made a couple schematics but bare with my I may be way off I'm not an EG. Let me know if you see somthing I need to change or which I route I should go.
The first three ar ones I saw online and I forgot all 12V and GND points going to fan will be directly from psu not from header like in diagrams. Sorry
The fourth I made with an isolation optocoupler in the circuit to protect my PC. I only have NPN Optos and N channel Mosfets. So I'm not sure how to do that. How the circuits drawn is the only way I see the opto working. I do like it better but what do you guys think?
Thanks
To start here's my setup if needed.
Mobo- Crosshair Formula V
CPU- AMD FX 8320
GPU- Zotac GTX950
Cooling- Swiftech H240x with additional 240
Fans - 7*120's, 3*80's,1*60
Power- Crosair HX850
So I just got these new "Works" fans from Micro Center. There very very loud lol, 240CFM @ 5200RPM at a whopping 64dbs lol. Now I got these cuz if i want the cooling power, I have it. I want to run these off a fan header so there controlled by FanXpert(Asus control software). The problem is, these fans pull 36 watts!! My headers can only do 12W a piece. My thought is to use the fan header to control a Mosfet, So those fans can get power directly from the PSU. I need some help on the circuit. I made a couple schematics but bare with my I may be way off I'm not an EG. Let me know if you see somthing I need to change or which I route I should go.
The first three ar ones I saw online and I forgot all 12V and GND points going to fan will be directly from psu not from header like in diagrams. Sorry
The fourth I made with an isolation optocoupler in the circuit to protect my PC. I only have NPN Optos and N channel Mosfets. So I'm not sure how to do that. How the circuits drawn is the only way I see the opto working. I do like it better but what do you guys think?
Thanks