Device malfunction: Cooler, LCD screen, and fans are not functioning.
Device malfunction: Cooler, LCD screen, and fans are not functioning.
Started assembling my PC yesterday and soon discovered a problem with the NZXT Kraken Elite 360mm. The three RGB fans aren’t spinning even though they’re powered via SATA from my PSU. This particular radiator includes an RGB controller that connects the fans to a USB 2.0 Y port, which is also used by the pump to share a single USB 2.0 header on the bottom of my Asus Maximus Z790 Hero motherboard. The fan RGB functions correctly, but they fail to start when receiving power as shown in many tutorials. The LCD screen remains off despite trying different connections for the SATA port and the 3-pin pump connector to either AIO_PUMP or CPU_FAN. I attempted a workaround by using a separate fan splitter for the three front-panel fans, which enabled them to spin. This suggested the issue lies not with the fans themselves but with the connection setup. I suspect my LCD might have a dead backlight and the breakout cable is faulty, as it contains all three fans, the pump connector, SATA power, and the USB 2.0 port.
what you're displaying is just PWM signals for adjusting fan and pump speeds. the usb2 port connects to nzxt software for full control. do you have a second cable coming out of each fan? is there another port or output for the pump's lcd? it seems everything is managed through software. in bios under monitoring, look for cpu_fan and set it to ignore or disable.
Each device uses two cables: one for the three-part fan splitter (likely PWM) and another for the RGB hub connected to the lighting. The breakout cable in the final photo links to the pump, with the connector positioned at the far left.
Have you linked the RGB cables to the RGB hub, and also connected it to SATA power? They typically require SATA or Molex power. One ARGB cable should go to the ARGB port on the motherboard. You'll still need software to manage the LCD. Also, a 3-pin fan controller cable works with DC, not PWM on your motherboard. You might also need software to control the fans.
I shared some images of the PWM connections for the fans. One shows a PWM connector to the fan splitter, another goes to the hub where the remaining three are also attached. The RGB hub uses two cords—one for Sata power and another for USB 2.0 on the motherboard. The breakout cable matches the two cords I provided, which are also linked to Sata, the DC connector, and USB 2.0 feeding the pump. The LCD is supposed to power on with the system, but its display remains off during startup even though it receives power.
Focus on the connector that fits into the pump with the LCD. Remove it, verify it isn’t damaged or loaded, and reinsert it properly. This method worked for him.
Later you mentioned, did you discover a solution for your issue? I understand the pump is running but the LCD and fans aren’t functioning. Yes, the fans operate when connected directly to the motherboard.