# Case Fan Upgrade \[Tutorial\] **URL:** \ **Category:** LulzBot TAZ\ **Created:** [February 13, 2016, 10:27am UTC](https://forum.lulzbot.com/t/case-fan-upgrade-tutorial/2940 "2016-02-13T10:27:40Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![imxron](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/imxron/32/25_2.png) [@imxron](https://forum.lulzbot.com/u/imxron)\ **Post date:** [March 7, 2016, 8:57pm UTC](https://forum.lulzbot.com/t/case-fan-upgrade-tutorial/2940/4 "2016-03-07T20:57:27Z")
> [@Ed6](#): > > Thanks so much for this tutorial! > > What is the reason that you avoided using the standard “fan” pin location on the board? > I recently bought a quieter fan (and plugged it into the standard “fan” pins on the board) for the case and its significantly quieter (can’t hear it over the loud power supply fan now) > > I also purchased and installed some stepper dampers (x &y axis) and was very impressed! > I still need to read/attempt the power supply fan upgrade because its noise is now driving me nuts. No problem! The reason I didn’t use the fan header is because it outputs 24v (kind of). If you connect a 12v computer fan there you’ll burn it up (you can smell it too). So there’s some weird circuit at that pin (positive and negative 12v may be used to make it 24v) So to avoid any issues I just connector a regulator at the source and called it a day. It also leaves room for future upgrades that requires 12v! I posted another tutorial for the power supply fan upgrade here: [Power Supply Fan Upgrade [Tutorial]](https://forum.lulzbot.com/t/power-supply-fan-upgrade-tutorial/2882/1) Totally worth it! Good luck! --- _[View the full topic](https://forum.lulzbot.com/t/case-fan-upgrade-tutorial/2940)._