Addressable RGB led freeze on B450m PRO4

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   Hi,

I am trying to make work the addressable RGB led port on the B450m PRO4 motherboard. I plug the Cougar RGB led strip (2 strips of 15 leds) and installed the Polychrome RGB software version 1.0.27. On first startup, the program updated the firmware of a chip (A Nuvoton microcontroller I think) and then I was able to change the effects of the led. All was working.

But, after a while, the last leds of the strip blink briefly and just freeze on a color. The other leds continue to work normally. When those leds freeze, the only way to unfreeze them is to turn off the power supply, because even if I shutdown the computer, those frozen leds stay light.

I tried to use the wICPFLASH.exe utility to rewrite the firmware version 2.07 (the file nu51_2.07), but the leds still freeze after a while. I even try to set it from the bios, but the same problem occurs. Sometimes it takes a few hours, sometimes it is after a few minutes.

Does anyone else have the same problem and found a solution?

Thanks

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Dominik Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Jan 2019 Status: Offline Points: 8	Post Options Post Reply Quote Dominik Report Post Thanks(0) Quote Reply Topic: Addressable RGB led freeze on B450m PRO4 Posted: 04 Jan 2019 at 10:36pm
	Hi, I am trying to make work the addressable RGB led port on the B450m PRO4 motherboard. I plug the Cougar RGB led strip (2 strips of 15 leds) and installed the Polychrome RGB software version 1.0.27. On first startup, the program updated the firmware of a chip (A Nuvoton microcontroller I think) and then I was able to change the effects of the led. All was working. But, after a while, the last leds of the strip blink briefly and just freeze on a color. The other leds continue to work normally. When those leds freeze, the only way to unfreeze them is to turn off the power supply, because even if I shutdown the computer, those frozen leds stay light. I tried to use the wICPFLASH.exe utility to rewrite the firmware version 2.07 (the file nu51_2.07), but the leds still freeze after a while. I even try to set it from the bios, but the same problem occurs. Sometimes it takes a few hours, sometimes it is after a few minutes. Does anyone else have the same problem and found a solution? Thanks

Dominik Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Jan 2019 Status: Offline Points: 8	Post Options Post Reply Quote Dominik Report Post Thanks(0) Quote Reply Posted: 28 Jan 2019 at 2:43am
	I finally found it was my led strips that were faulty. I exchanged them from where I bought them and I got no problems so far. Perhaps there was just one faulty led that cause the rest of the strip to freeze.