Posted September 1, 2018 Hi there, I just got an next h700 pc case and the fan it came with is a voltage controlled fan, but my motherboard only have 4 pin connectors, will they work? And what is the difference between them, is pwm fan really that much better than 3 pin voltage controlled fans? Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2018 It'll work just fine, just make sure you align the tabs correctly but they'll run at full speed if it's under PWM mode. So You Wanna Be A Playa, But Your Rig's Ain't Fly,You Gotta Hit Us Up, To Get A Pimped Out Rig, You've Got To Pimp My Riggggggg... (DAMN RIGHT) Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2018 The motherboard's BIOS should let you choose DC mode and PWM mode for the fan headers. Use DC mode for 3pin fans. PWM fans maintain their torque at low speeds, non-PWM fans lose torque when you slow them down. 17 minutes ago, Alexsolo said: You can put 3 pin in the 4 pin connector, it's made to be compatible. Except you lose fan speed control on boards with 4pin headers that do not let you choose DC mode. CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1 Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync Desktop benching: Cinebench R15 Single thread:168 Multi-thread: 833 SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2018 4 hours ago, James Evens said: Depends. Some mobo support voltage control on 4 pin fan header. On other they can not be controlled. I think it's pretty sure that if motherboard supports genuine PWM control (instead of just chopping 12V) it can also do voltage control. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2018 You can have PWM control on 3pin fan with Phobya 4Pin PWM to 3Pin Transformer Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted September 1, 2018 10 hours ago, Jurrunio said: Except you lose fan speed control on boards with 4pin headers that do not let you choose DC mode. Those aren't common, and most even then select it automatically. The bigger issue are boards with fake PWM. As in 4pin headers without PWM support. ^^^^ That's my post ^^^^ <-- This is me --- That's your scrollbar --> vvvv Who's there? vvvv Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
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