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Hi! I recently swapped out my Cryorig H5 Universal, for a NH-D15, as well as adding a second case fan for the bottom (7 fans including NH-D15 fans). One of my fans doesn't have an adjustable RPM, and I'm going to swap it out for another Noctua fan. The 2x front intake fans are the same as the exhaust fan, and the 2x bottom intake will be the same. So, I'm going to be having 7 fans in total — it might seem a bit overkill, but with the limited space for my tower, my 7700K was reaching 85 degrees when playing even the least demanding of games. Anyway, I took my computer in to Canada Computers, and after the guy installed my fans, he just used adapters and didn't take fan controlling into consideration. Because of this, only 3 of my fans are recognized. I have no idea how to build computers, so I'm sorry if this might be a dumb question: Would I be able to control all the fans with Fan Xpert? I don't think I have enough fan headers, so I was wondering if it's possible to have the 2x intake controlled as one, the 2x bottom intake controlled as one, the exhaust controlled as 1, and the 2 CPU fans controlled as one, essentially turning 7 fans into 4 with the use of splitters. All of the fans that I'd be pairing are the same, so it's not mixing different RPMs. If this is possible, what would I need to buy? Sorry if this is a bit confusing. I'm not very experienced in this, so that's why I'm asking you tech-magicians. ;~} Here's a picture of the fan layout. Like I said: I'll be swapping out the bottom intake (Corsair AF140) with the same Noctua that's beside it. Also: Merry Christmas. :~}

So as far as I can understand, its just fans you can control? So is the difference between pwm and non-pwm that non(when connected to a motherboard) will increase or decrease RPM according to temperature on its own and PWM you can set a fan curve? I have the MeanIt 5PM BLK case. Comes with a fan controller, but according to the case manual. You can only set it to PWM mode when ALL fans connected to it are PWM. I have the Strix B350 board so I should just plug any PWM fan I get into the chassis header? My case has 4 140mm fans. 3 front intakes and 1 exhaust at the back and am using Cryorig H7 to cool my R5 1600x. Just for aesthetic, I want 2 white fans(thinking of the cryorig QF140). 1 in the back, and one on top towards the back, so 6 fans total. If you see the case, it doesn't really have good airflow. Just a thin opening around the front panel. I plan on keeping the stock fans on. So is there another configuration I should be running besides 3 front intake and 3 exhausts? And since the 2 fans that are gonna be PWM fans are gonna be set to exhaust, are they really gonna be that beneficial over non pwm? Also, If I want a slightly positive pressure, Is that a hard thing to do in cases with bad airflow? Since those cryorig fans are capable of more airflow than the stock ones, I'd have to set it to a lower RPM, at that point it doesnt seem worth to spend $15 on fans I wont be making much use out of. Lots of questions, thanks for taking the time to read. Answer what you would like and give any advice you see fit. Happy Holidays!

Hi! I'm still new to computers, and am confused about how many fan headers I have, and how many that I have that can be controllable via software like Fan Xpert. I have an Asus Z270-E Gaming, with a NH-D15 in a dual fan configuration. Including the dual fans for the NH-D15, how many PWM case fans can I add that will be recognized by AI Suite/ Fan Xpert? Would my motherboard currently be capable of individually controlling 1x exhaust, 2x bottom intake, and 2x front intake, on top of my dual fan CPU cooler If not, should I get the Asus' fan extension card? Thanks. <3

Hi I have an old set of fans on my radiator that came with a pot connected to adjust the speed. I would however like to have the speed controlled by the motherboard. The fans connect to the pot and then to the motherboard. Can I simply remove the pot and connect the fans to a 4 pin fan connector?

Motherboard: Asus Z270E Gaming CPU Cooler: NH-D15 with dual stock fans. Case fans: 3x NF-A14 iPPC-3000 PWM (2x for intake, 1x for exhaust) 1x NF-A14 Premium Quiet (1x bottom intake) 1x AF140 Quiet Editiion (1x bottom intake) Yesterday, before I had the person add in and swap out my fans and cooler, AI Suite III was working perfectly; Fan Xpert doesn't recognize more than 3 fans as controllable. This is all because today when I took my computer to Canada computer's, I spent money on priority service, and after being told the longest it'd take would be 1.5 hours, and then when be told (when calling 4 hours later) that they're almost done, and they'd call me. Unfortunately, it seemed as if they hoped that I would have forgotten about it since when I called them 30 minutes before closing time, they said that it'd be ready by the time I got there. It shouldn't be surprising to you guys to know that the guy had barely begun, and had waited past their closing hours. The reason why that story is important is because I'm not sure if it's a bios or software problem, or a problem with the guy plugging things in incorrectly (he didn't test the CPU cooler, since I watched him plop it in). Anyway, please let me know what you think that the issue is that I'm having to deal with is. Note: In the BIOS, I have tried choosing the fans to be PWM instead of 'DC'. Fan Xpert is the biggest issue, though.

Hey Guys, I'm going for a build which has 6 Corsair LL140 fans (2 on AIO Radiator +4 Case Fans) I've been looking at the Corsair Commander pro as it says it can adjust all RGBs and Fan speeds -Individually!!- (fan speed important). On the commander pro it say its says it can control up to 6 fans, but.... as the fans each have 2x 4 pin cables (1 for fan Control + 1 for rgbs) I dont know how this will fit into the 6x 4 pins on the commander pro? I'm guessing that the RGB LED Fan hub will allow for the control of the RGBs?? Do I even need the commander Pro or will a fan controller (Dark base pro 900 fan controller) work just fine? Another side question, the fans on the CPU AIO cooler... do those fans have to be put into the CPU fan header on the MOBO or can it go into a fan controller and have a custom curve changing with cpu temps. Thanks in advance

hi like tittle says i have some problems i need to solve: 1)How should I make the connections of the two fans to be able to control the speed of them with CLink4? 2)How should I configure them on the motherboard? ***I clarify that one of the fans has 4 pins and the other 3 and both are connected to the pump*** ask this because I connect the fans as they are supposed to go and in the CorsairLink4 I do not see one of the fans (the fan that expels air out of the case) to change its speed so it turns very fast rpm. the temporary solution was to connect this fan to the motherboard and regulate it in this, but its speed remains constant at all times and although the CLink4 shows me the fan connected to the motherboard, obviously does not allow me to configure the speed from this. like I said, I can regulate the speed of the fan that draws hot air from the cabinet. well I'm waiting for your help thanks

Hello mates. Can i split my two 140mm fan from a 280mm rad into a single CPU PWM port on my Board? The pump is connected directly to to the psu via 4pin molex to 4pin pwm. My concern is if I split the CPU 4pin Pwm on my board to connect my two 140mm fan, will those two fan achieve optimum performance??? In terms of "will it hit the fans max or highest RPM" if I set to 100% stuff like that..

I'm Looking to do a build in the 'Dark Base Pro 900 Case' with an Asus ROG Maximus X Hero z370 Motherboard, but I'm confused on how the case fans will be controlled. The case has a PWM fan hub, does this mean that all fans connected to this hub will spin at the same speed as each other and all react to temps the same? Or do I get to control individual fans? e.g. a few fans only start when the system gets to a certain temp while other fans are reacting to CPU temps? Or does this fan hub get controlled by the BIOs and does this give me control over individual fans? Thanks in advance

Hi everybody, Quick question: is it possible to manually control (via software in Windows) the speed of case fans (PWM) that are connected with PWM directly to the motherboard 4-pin sockets? I'm looking for a way to best balance noise/performance. Thanks in advance!

The fans can be the most expensive part of a water cooling loop when you need 5 and PWM fans I would like good fans not just random fans that aren't a name brand but I would rather not play 15 dollars per fan.

My motherboard only has 1 sysfan header, so I'm forced to use a fan hub, since I want to add 2 or more fans (no controller, I have no front bays and dont want to use dials, want to control from bios). And I want to be able to control them all from the bios, which I would ideally do, by controlling the hub, attached to the pwn header. If I got a pwm fan hub, could I hook my 3pin fans to it and they would be regulated by the hub? I'm just trying to find a solution and save a couple bucks, also it seems weird to me that most fans that are bought on amazon or in general are non-pwm, while many people must use them with a hub or controller.

Quick Question. I have a Frostflow 120. The frostflow have a 120Fan , a 120Rad and the cpublock. The 120Fan is a 4Pin fan header. The cpublock is a 3pin fan header. I bought a CoolerMaster Masterfan Pro 120 AirFlow, it came with a 4pin fan header. My motherboard has only two 4pin fan header labelled as cpu_fan and sys_fan. Can i actually put the cpublock into a 3pin fan header on my Thermaltake Commander FX, the 120Fan to the sys_fan , while the CM120AirFlow to the cpu_fan. Will the cpublock still function? Regards... This is a drawing

So, I just built my brand new system which features a ryzen 1700. I have seen all over the intrenet that people also experience random 10-ish degrees spike at idle. Now the prooblem with that is it keep making fans ramp up. I've searching for a while now and I can't find a way to change the fan speed update period in the UEFI of the crosshair VI Hero, so I was hoping someone on the internet did.

Hey there I have a little question about the Cooler Master Liquid Cooler 240M. The Manual does not say if i have to controll the Pump with a PWM or not. Can you guys help me out there? Thank you!

Can you just attach the PWM signal to multiple fans? Presumably it's a low power control signal. Using a multimeter on a Phobya 8 way PWM splitter it seems they've wired up all pins apart from the tachometer to all the fans. The tachometer is wired up to just one fan. Does the PWM signal need a boost if splitting it between, say 4 fans or is it just fine to splice the wires? Please note I'll be powering the fans another way.

Hi everyone, I've recently started having an issue with a build I did a couple of months ago. I'll preface this by saying that I was originally using 3-pin splitters on all fans but the cpu fans then the problem changed slightly when I switched to 4-pin splitters. The fans I use are 2 corsair SP120s and 3 corasir HD120s, along with 2 CPU fans. After using the BIOS Qfan optimisation (ASUS Z270H mobo) my computer started failing to POST, only the CPU fans would run and while the LEDs lit up on the chassis fans, they would not run. I tried pushing them slightly to get them running but no joy. After restarting the computer a few times by turning it off at the wall it would eventually boot normally with all fans running. Now that I've switched to different splitters I'm only having this issue with the non PWM SP120 fans. I still have to do multiple restarts every time I want to turn my computer on to get the fan running so the computer can boot. It is also having this issue when I try to wake it from sleep. I have also tried using AI suite 3 to change fan settings and I've gone back and forth multiple times resetting and reoptimising to the point of madness. Could it be a voltage issue to the SP120s? If so please could someone help me work out how to fix it? Specs ASUS Z270H mobo i5 7600K Corsair H75 cooler MSI GTX 970 GSKILL Trident Z RGB 8GB x2 EVGA 650W G2 Windows 10

just got a Silverstone fan hub 1 to 8 (PWM). i was wondering what i use to control the fans? Also after installing the fan hub i plugged it into the cpu fan port and turned on my pc and got a cpu fan error. but all the fans are working side note i had to boot from the bios.

TL;DR! My post was WAAAY too long, so here's a TL;DR version. Feel free to read the original full post after this one. What is it? It's a project to create the ultimate über fan controller. However i want to add so many features that i may call it case controller. Now, i have a PCB designed, and i'll make a first batch. Main features : control of 6 PWM channels for fans, led strips, or whatever uses 12V and can be PWM controlled, 256 levels between fully off and fully on; high power for each channel, at least 30W max per channel (i'm very conservative); 6 plugs for temperature probes, normal or waterproof, this number can be increased a lot (hundreds) and easily; 5x analog inputs for potentiometers, analog sensors or whatever; 5x digital input (buttons, digital sensors) or outputs (leds, 5v leds strips, adressable LEDs...); shared with analog inputs, so it's 5 total; 3x I2C plugs, for sensors (gazillons of I2C sensors are available) or output devices (text LCDs, OLED LCDs, sound devices, etc); extensible up to 127 devices on the bus; real time clock for whatever use we can have for that; controlled by an Arduino Nano (2$ board), so can be programmed/upgraded via USB (soon to be with ESP32 chip, adding more power, wifi, bluetooth); draws power from a molex or whatever source providing 12V and 5V; can control individually adressable LED strips, with RGB (meaning whatever color for whatever LED of the strip independently from the other LEDs); open source, open hardware, so extensible; monitoring each fan speed; can print things on LCDs; can send data to PC; can receive data from PC; can work with or without the PC. State of the project Now i have a PCB designed, i'll soon order a first batch. I have all components in my stash. This is the first prototype : Most of the features mentioned here have already been tested, i have yet to test a board implementing all of those at the same time. I want to make a device with the community, without any consideration for commercial stuff or whatever, the idea is to make a cool device, with other people, have people modifying it, adding their code, etc ... The board is 50*70mm (2*3 inches approximately) and has 4 mounting holes. i'll make a 3D printable box to put it in a PC case, and a 5"1/4 tray for it later (in an optical bay, with an LCD in the front? what do you think guys?). By the way, it can also control watercooling stuff, the probes can be waterproof or not (no difference in code just a slight cost increase per probe for the waterproof version) and we can add flow sensors in the watercooling loop, or PWM control the pump or whatever you want. The whole board is relatively cheap to produce (should be 20-30€ for a complete unit), simple to assemble, and that's the first version i have. it will improve over time. However, i'd like to hear from you guys what should be included on such a device, what killer feature have you not seen on other fan controller/case controllers? what sensors would you have in your PC, smart desk , server cab or whatever? what would you want to control automatically? And don't hesitate to throw crazy ideas, many can in fact be implemented easily... Next post is a detailed version of this post, with technical details about many things, you don't have to read it, it's there for those who want to investigate further. Don't hesitate to ask me anything about this project.

I'm just looking for some help finding the best 200mm fans out there. My plan is to use a 200mm as an intake for a Cooler Master HAF XB EVO and exhaust out the front and back of the case (I plan on having radiators there for a custom loop). My main problem is just that there doesn't seem to be an awful lot of options for 200mm, especially if you're looking for pwm. I know Noctua has one but I'd like to know what other good options there are.

Hello all! I recently installed a corsair h75 AIO water cooler and the two fans it came with. Only one issue, my Asus motherboard BIOS wants to protect me from myself (a bit late for that) and limits the duty cycle to 40% minimum for all the chassis fan headers. I think my CPU fan header might have a lower manual duty cycle of around 20% but I'd rather not screw with that because i'd prefer to keep my CPU fan to auto adjusts speed based on core temps. Anyway, preface out of the way, the thing I wanted to ask you lovely ladies and gentlemen of the LTT forum is: What can I do to limit the rpm of my fans... Silly question I know, but besides forking out ~$50 for a PWM fan controller, maybe there are some other things that could be done? I'm not adverse to installing some ghetto resistor in line to the fans considering I have already voided the warranty on just about everything in my case (the aforementioned h75 was for my GPU after all...). But I'm pretty sure the old "voltage divider" resistor trick doesn't work with PWM fans anyways... So, got any ideas? I'd rather not spend money tbh as it's a bit hard to come by right now. And yes, before anyone comments that this thread has already been made a million times, I'm doing it because I know how much you all LOVE answering questions that have already been asked before

Hi, I have an idea of how this will work but i wanted to run it by a few people who might have done something like this before. In short, I'm building a system using an ASUS Z270I (itx) motherboard, the board has the following available fan headers(and pin outputs): CPU Fan - PWM (ground, +12 V, rpm, PWM Signall) CHASSIS FAN - (ground, +12 V, rpm, +5V) AIO PUMP - (ground, +12 V, rpm, +5 V) I have two radiator fans (120 mm pwm), 3 chassis fans (2x80 mm, 1 x 140 mm) and the pump. My original plan was to run the 2 radiator fans off the cpu fan header, the pump off the AIO header (note it has a 12 V power feed direct from the PSU also) and the 3 remaining fans off the chassis fan header. However, i did not realise that the AIO header did not support PWM, thus, if i use this header for the pump i will only ever have a fixed pump speed 42% of maximum, that doesn't seem all idle but also not the end of the world? But... I also know that this board can likely control fans via dc voltage on the none PWM headers, so my thinking was what if i connected the pump PWM signal pin to the +12V pin instead perhaps I could have DC control of the pump speed via the AIO header instead? After all, PWM is just a digital way to mimic a voltage so i doubt the pumps going to notice the difference between a 7V PWM signal and a 7V DC signal? Here's the link to the pump i'm using https://www.ekwb.com/shop/ek-ddc-3-2-pwm-laing-ddc-3-2-pwm Thanks, Christian

I want to use a Fractal S36 watercooler and I want to have a near silent build but I want to have a lot of overclocking headroom and I am going to eventually use the G1/4 threads that it has for a custom watercooler. But I want to slowly ramp up the fan speeds one by one to minimize noise and I need to know how many PWM headers on the MSI X370 Gaming Plus. Thanks!

I'm having trouble controlling fans either through BIOS or Speedfan. Bios won't ramp them up enough when controlled by PWM and Speedfan is ramping them up way too much down low and PC suddenly becomes a wind turbine with any form of temp above idle. I have a Fractal S36 AIO as an intake with it's three PWM fans run through on it's inbuilt header to the CPU header. Than three more EK Vardar PWM fans as exhausts daisy chained to a single header. What I want ideally is to be able to ramp the CPU / intake fans when the GPUs get over a certain temp as well as normally ramp up for CPU temp like it already does. I also want the exhaust fans to be controlled by taking temps from both GPU1 and CPU and ramp up as temps increase if either get hot enough. At the moment I can barely OC my GPUs as they thermal throttle without the chassis fans spinning up as well. GPU fans I control through MSI Afterburner and they ramp up and down as wanted Build: https://au.pcpartpicker.com/list/BCYKVY

So I'm RGBing up my go to pc and had fans on my mind. I have an H110i GT AIO water cooler in ANGLE and was thinking about replacing the fans with RGB ones. I decided I really like how the HD140s look and would like to use them. But the h110i uses a 3pin power connector to power the fans. HD140's are 4pin pwm fans. Will this cause a problem? Will I still be able to control the leds? Is there a better choice for 140mm SP RGB fans? Also one thing to note the only thing about this particular build you could call a theme is it had a decent amount of corsair parts in it.