Seasonic PSU LED Fan Mod

[Matthew Grimes]

This is a simple mod. I replaced my factory Seasonic PSU fan with a Corsair ML120 White LED fan.

In my opinion the LED load of the case was a little unbalanced.

 

I decided to try to add an LED fan to replace my existing Seasonic factory unit.

 

First step was to remove the Power Supply and old fan.

 

Oh, you will void your warranty, so don't mess up.

 

Disconnect the fan cable from the header inside the power supply. There are only two cables. A Ground and a +12V. You will be removing some unnecessary cables from the new LED fan.

 

You only need the +12V and Ground wires. The other two are for the PWM signal and a tach wire so your motherboard knows the RPM of the fan.

 

Cut the two wires far enough away from the plug so you give yourself plenty of room to work. Remember to transfer that small piece of plastic to the new fan. 

 

Grab either some solder or some wire connectors. I chose to solder my wires but there are always options.

 

If you soldered your wires, remember to add heat shrink or your gonna have a bad time.

 

Reconnect the cable to the PSU and reinstall the cover.

 

Reinstall the PSU, sit back and enjoy the glory of a much quieter and much brighter fan. IMHO, this mod really did a lot to balance out the LEDs in the case. I really don't want to go the RGB route and this was a fun little Saturday project. 

 

Thanks for checking out my post.  Leave any questions or comments, I'll get to them.

 

 

 

Edited June 4, 2017 by Matthew Grimes
Deleted extra pictures.

[tp95112]

Looks awesome. Always thought power supplies would use 3 or 4 pins. 

[kb5zue]

Nice job, just a bummer about losing the warranty.  But if you had to send it back after making the mod, it would be pretty obvious that someone had been inside the box even if you had been able to save the tag.

 

[Matthew Grimes]

4 minutes ago, tp95112 said:

Looks awesome. Always thought power supplies would use 3 or 4 pins. 

Me too. I had to do some research into PWM pinouts before I started once I realized there were only a power and ground. It's probably running at the full 2000 RPM but I can't hear it at all. 

[Matthew Grimes]

Just now, kb5zue said:

Nice job, just a bummer about losing the warranty.  But if you had to send it back after making the mod, it would be pretty obvious that someone had been inside the box even if you had been able to save the tag.

 

I wasn't terribly worried. I've had this PSU for about 5 years but I wanted to let others know.

[Enderman]

Nice job, it looks great

Best LED fan too.

 

15 minutes ago, tp95112 said:

Looks awesome. Always thought power supplies would use 3 or 4 pins. 

Depends on the PSU.

My AX860i had 4 pin.

Some have 3 pin too.

[Matthew Grimes]

57 minutes ago, Enderman said:

Nice job, it looks great

Best LED fan too.

Thank you for the compliment. I was looking at this on Amazon and decided to see what my local Meh Buy had to offer and they actually had it in stock. It is by far and away the quietest fan I've ever used. Well worth the price. I'd replace all my fans with Mag Lev except I'd have to lose the LTT special edition ones and I'm just not ready to do that.