![Does anyone have any idea why this error keeps occurring?! Can't read fan speed error code 999, I'm about to return the card, I've switched pcie slots on motherboard, I've changed risers, Does anyone have any idea why this error keeps occurring?! Can't read fan speed error code 999, I'm about to return the card, I've switched pcie slots on motherboard, I've changed risers,](https://i.redd.it/uiiisehfous61.jpg)
Does anyone have any idea why this error keeps occurring?! Can't read fan speed error code 999, I'm about to return the card, I've switched pcie slots on motherboard, I've changed risers,
![AMC6821: Application: FAN speed measurement (R.P.M) from 0x08 & 0x09 register - Sensors forum - Sensors - TI E2E support forums AMC6821: Application: FAN speed measurement (R.P.M) from 0x08 & 0x09 register - Sensors forum - Sensors - TI E2E support forums](https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/1023/command.jpg)
AMC6821: Application: FAN speed measurement (R.P.M) from 0x08 & 0x09 register - Sensors forum - Sensors - TI E2E support forums
![Reading RPM speed of 4Pin Fan from HP Blade Server - Motors, Mechanics, Power and CNC - Arduino Forum Reading RPM speed of 4Pin Fan from HP Blade Server - Motors, Mechanics, Power and CNC - Arduino Forum](https://aws1.discourse-cdn.com/arduino/original/4X/e/f/4/ef4a445ca72afbb106ecc832a56e71775fe7d3fd.png)
Reading RPM speed of 4Pin Fan from HP Blade Server - Motors, Mechanics, Power and CNC - Arduino Forum
![arduino - how to read and control the speed of a 12V - four wire fan? - Electrical Engineering Stack Exchange arduino - how to read and control the speed of a 12V - four wire fan? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/ToTSf.png)
arduino - how to read and control the speed of a 12V - four wire fan? - Electrical Engineering Stack Exchange
![Final clear out!Laptop Fan Cooler Lcd Displays Read Temperature Fan Speed Quickly Dissipate Heat Laptop Cooling Pads - Walmart.com Final clear out!Laptop Fan Cooler Lcd Displays Read Temperature Fan Speed Quickly Dissipate Heat Laptop Cooling Pads - Walmart.com](https://i5.walmartimages.com/asr/66108a90-e148-43f6-9e40-02264953bb59_1.15fa38c694e7fe7851dd6d570dcaa69d.jpeg)
Final clear out!Laptop Fan Cooler Lcd Displays Read Temperature Fan Speed Quickly Dissipate Heat Laptop Cooling Pads - Walmart.com
![arduino - how to read and control the speed of a 12V - four wire fan? - Electrical Engineering Stack Exchange arduino - how to read and control the speed of a 12V - four wire fan? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/T87he.png)