What's the difference between 'CPU FAN' socket, 'CPU OPT' socket, and a 'SYS FAN' socket on motherboard? - Quora
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Should I use the CPU_Fan header, or the W_Pump header? (H100i v2) - Custom Loop and Exotic Cooling - Linus Tech Tips
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Can someone tell me what this noise is? Happens when CPU is under load or CPU_OPT is cranked up in bios : r/pcmasterrace
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Fan Header "CPU_OPT" ignoring BIOS configuration after a few minutes - Troubleshooting - Linus Tech Tips
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