Troubleshooting: Fans Not Spinning¶
Work through these checks in order if fans connected to the powerboard won't spin. This page also applies to an HF-L1 with the optional powerboard installed.
Safety First
Power down the system before checking or reseating any connections inside the case.
1. Check the 8-Pin PCIe Power Inputs¶
Fans get their power from specific 8-pin PCIe inputs on the powerboard. If the input for a fan wall isn't connected, that fan wall won't spin.
| Input | Powers |
|---|---|
| 8-Pin PCIe IN 1 | Fan wall 1 (and the 4-pin fan outputs) |
| 8-Pin PCIe IN 3 | Fan wall 2 |
| 8-Pin PCIe IN 4 | Fan wall 3 |
Power Priority
8-Pin PCIe IN 1 powers the 4-pin fan outputs. Connect it first.
See Powerboard Connections for the full input map.
2. Check the Fan Cable Harness¶
- Make sure each Fan Cable Harness is fully seated on the powerboard.
- Make sure each fan is fully plugged into the harness.
- Each harness runs 3 fans. Check that every fan wall has its own harness.
3. Check the Fan Control Switch¶
The fan control switch decides what controls the fans. Make sure the rest of your setup matches the position it's in.
- The fans follow the PWM_IN cable, which should be plugged into a fan header on your motherboard.
- If the fans are stopped, check that motherboard fan header in your BIOS or fan software. A curve set to 0% (or "fan stop") will stop the fans.
- If you unplug PWM_IN, the fans should run at full speed. If they still don't spin, go back to steps 1 and 2.
- The fans are controlled by the powerboard, which needs the USB cable connected to a USB 2.0 header on your motherboard.
- Check your fan settings in Hako Foundry.
PWM_IN and USB connected
Having both the PWM_IN and USB cables connected is OK. Flip the switch to change which one controls the fans.
4. Test the Fan¶
Plug the fan into a motherboard fan header, or swap it with a fan you know works. If it still doesn't spin, the fan itself may be faulty.
Still Not Working?¶
Contact us at contact@hakoforge.com with photos of your powerboard wiring and the position of the fan control switch.