Pic inside) On my mobo, CPU_FAN and SYS_FAN1 are normal 4-pin headers. SYS_FAN2 is 4-pin in a smaller housing and fans won't fit. Why? : r/buildapc
![MSI MAG B550M MORTAR [37/184] Cpu_fan1 pump_fan1 sys_fan1 3 fan connectors](https://mcgrp.ru/views2/1747205/page37/bg25.png "MSI MAG B550M MORTAR [37/184] Cpu_fan1 pump_fan1 sys_fan1 3 fan connectors")
MSI MAG B550M MORTAR [37/184] Cpu_fan1 pump_fan1 sys_fan1 3 fan connectors
What is a system fan or SYS_FAN on a motherboard? - The Techtellectual
Can I plug a cpu fan into a sys_fan1 slot? - CPUs, Motherboards, and Memory - Linus Tech Tips
Can someone identify the SYS_FAN1 header on GA-7PESH2? : r/JDM_WAAAT
System FAN vs CPU FAN Headers - Difference & When to Use Which
![MSI X399 SLI PLUS [40/90] Cpu_fan1 pump_fan1 sys_fan1 4 fan connectors](https://mcgrp.ru/views2/1307682/page40/bg28.png "MSI X399 SLI PLUS [40/90] Cpu_fan1 pump_fan1 sys_fan1 4 fan connectors")
MSI X399 SLI PLUS [40/90] Cpu_fan1 pump_fan1 sys_fan1 4 fan connectors
![Gigabyte A520M K V2 [17/30] 4 cpu_fan sys_fan1 fan headers](https://mcgrp.ru/views2/1920108/page17/bg11.png "Gigabyte A520M K V2 [17/30] 4 cpu_fan sys_fan1 fan headers")
Gigabyte A520M K V2 [17/30] 4 cpu_fan sys_fan1 fan headers
Разъемы CPU_FAN/SYS_FAN1/SYS_FAN2/PWR_FAN для подключения вентиляторов
![MSI Z370-A PRO [34/95] CPU_FAN1,SYS_FAN1~4, PUMP_FAN1: Fan Connectors](https://mcgrp.ru/views2/1307678/page34/bg22.png "MSI Z370-A PRO [34/95] CPU_FAN1,SYS_FAN1~4, PUMP_FAN1: Fan Connectors")
MSI Z370-A PRO [34/95] CPU_FAN1,SYS_FAN1~4, PUMP_FAN1: Fan Connectors
Maximum Current for B450 A Pro MAX Fan header | MSI Global English Forum
System FAN vs CPU FAN Headers - Difference & When to Use Which
![MSI B250M BAZOOKA [27/134] CPU_FAN1~2,SYS_FAN1~4: Fan Connectors](https://mcgrp.ru/views2/1300799/page27/bg1b.png "MSI B250M BAZOOKA [27/134] CPU_FAN1~2,SYS_FAN1~4: Fan Connectors")
MSI B250M BAZOOKA [27/134] CPU_FAN1~2,SYS_FAN1~4: Fan Connectors
Fan header confusion - Cooling - Linus Tech Tips
SYS_FAN1 ve LED_CPU Farkı Nedir? | Technopat Sosyal
motherboard - Fan Connections for Cooler Master K280 vs Gigabyte GA-990FXA-UD3 R5 - Super User
Where to connect fans in NZXT Kraken X63 - Custom Loop and Exotic Cooling - Linus Tech Tips
![Gigabyte GA-MA770T-UD3 (rev. 1.5) [23/100] 4 5 cpu_fan sys_fan1 sys_fan2 pwr_fan fan headers](https://mcgrp.ru/views2/1046997/page23/bg17.png "Gigabyte GA-MA770T-UD3 (rev. 1.5) [23/100] 4 5 cpu_fan sys_fan1 sys_fan2 pwr_fan fan headers")
Gigabyte GA-MA770T-UD3 (rev. 1.5) [23/100] 4 5 cpu_fan sys_fan1 sys_fan2 pwr_fan fan headers
2 questions about fans : r/Noctua
Semi starting build - CPUs, Motherboards, and Memory - Linus Tech Tips
4-Pin Fan Splitter connected to SYS_FAN1 on motherboard, + Fan control questions. : r/buildapc
![MSI B450 TOMAHAWK MAX [32/156] Cpu_fan1 pump_fan1 sys_fan1 4 fan connectors](https://mcgrp.ru/views2/1916953/page32/bg20.png "MSI B450 TOMAHAWK MAX [32/156] Cpu_fan1 pump_fan1 sys_fan1 4 fan connectors")
MSI B450 TOMAHAWK MAX [32/156] Cpu_fan1 pump_fan1 sys_fan1 4 fan connectors
![How And Where To Plug In All Your Fans On The Motherboard [Updated Guide]](https://www.cgdirector.com/wp-content/uploads/media/2022/05/word-image-32.png "How And Where To Plug In All Your Fans On The Motherboard [Updated Guide]")
How And Where To Plug In All Your Fans On The Motherboard [Updated Guide]
![Gigabyte B650 GAMING X [21/39] 4 cpu_fan sys_fan1 2 fan headers](https://mcgrp.ru/views2/1920066/page21/bg15.png "Gigabyte B650 GAMING X [21/39] 4 cpu_fan sys_fan1 2 fan headers")
Gigabyte B650 GAMING X [21/39] 4 cpu_fan sys_fan1 2 fan headers
Does this mean that SYS FAN1/2/3 don't have PWM control? : r/gigabyte
