R Ramos_97 Prominent Apr 1, 2017 1 0 510 Apr 1, 2017 #1 i have a noctua nh d15 with two cpu fans. In the bios i cant seem to find an option to control the speed of the 2nd(opt) fan. do cpu and opt fans run at the same speed by default?
i have a noctua nh d15 with two cpu fans. In the bios i cant seem to find an option to control the speed of the 2nd(opt) fan. do cpu and opt fans run at the same speed by default?
Solution Nigel Spike Apr 2, 2017 Page 1-25 in your motherboard manual describes the fan headers and how they work. The easiest way to make the fans run at the same speed, get an y-splitter and connect both fans to the cpu fan header. https://www.amazon.com/Noctua-NA-SYC1-Accessory-4-pin-Y-Cables/dp/B00KG8K5CY/ref=sr_1_7?ie=UTF8&qid=1491118644&sr=8-7&keywords=pwm+y+splitter Nigel
Page 1-25 in your motherboard manual describes the fan headers and how they work. The easiest way to make the fans run at the same speed, get an y-splitter and connect both fans to the cpu fan header. https://www.amazon.com/Noctua-NA-SYC1-Accessory-4-pin-Y-Cables/dp/B00KG8K5CY/ref=sr_1_7?ie=UTF8&qid=1491118644&sr=8-7&keywords=pwm+y+splitter Nigel
Nigel Spike Distinguished Jan 9, 2016 1,052 96 20,390 Apr 2, 2017 Solution #2 Page 1-25 in your motherboard manual describes the fan headers and how they work. The easiest way to make the fans run at the same speed, get an y-splitter and connect both fans to the cpu fan header. https://www.amazon.com/Noctua-NA-SYC1-Accessory-4-pin-Y-Cables/dp/B00KG8K5CY/ref=sr_1_7?ie=UTF8&qid=1491118644&sr=8-7&keywords=pwm+y+splitter Nigel Upvote 0 Downvote Solution
Page 1-25 in your motherboard manual describes the fan headers and how they work. The easiest way to make the fans run at the same speed, get an y-splitter and connect both fans to the cpu fan header. https://www.amazon.com/Noctua-NA-SYC1-Accessory-4-pin-Y-Cables/dp/B00KG8K5CY/ref=sr_1_7?ie=UTF8&qid=1491118644&sr=8-7&keywords=pwm+y+splitter Nigel
Tannerleo Prominent Mar 10, 2017 11 0 510 May 22, 2017 #3 Your guess is correct, Ramos_97. CPU_Opt gets the same PWM signal as the CPU fan header. Upvote 0 Downvote