Cpu Opt Fan Header For Case Fan

The four wire connectors are for processor fans with higher power consumption.

Cpu opt fan header for case fan. The fan on that header is on the side of my case, blowing air in, near the ram. A three wire fan connecting to a four pin fan header:. Your board likely has CPU_fan, OPT_fan, and CHA_fan headers that each have different speed profiles (usually adjustable in bios or with Asus Fan Expert).

The cooler is the Kraken X62 280mm, it's manual says to use CPU_FAN for the pump, but the mobo manual says use AIO_PUMP for the pump and CPU_FAN and CPU_OPT for the 2 rad fans I most likely won't change the pump RPM but I'd like to have the option to change it in CAM if it does end up being too loud at idle in my small case. Similarly with the other AIDA64 system fan designations. If you want to monitor and control the individual fans via software, the available internal fan headers (connectors) according to the official specs are:.

CPU = CPU CPU OPT = System 6 Pump Chassis 1 = System 3. Make sure and check the settings for it. According to the manual for Z170x Gaming 7 mobo, there are 5 fan headers on the mobo.

First, if you know the power ratings of your fans and of your motherboard, you may be able to use a splitter such as the Rosewill Case Fan PWM Cable Splitter. Each header should support 3-4 fans without an issue. Your motherboard has a header for PUMP and CPU FAN / CPU OPT.

If you dont have enough 4 pin headers on the motherboard and still want to control your fans you have 2 options:. The CPU fan in AIDA64 is obviously the CPU_FAN header. No answer in the manual.

Fans and on-board fan headers are backwards compatible. And i have the cpu header and the cpu-opt header free for 2 fan's in push\pull configuration. On Asus, since it says AIO_Pump header, I'd.

Dec 18, 13 #4 Z. 3-pin connectors are usually used for the smaller chassis fans with lower power consumption. A better option would be splitter cables for the normal case fan headers.

If a motherboard says it has 2 fan headers (on the manufacturer's website and next to it in () it says ( 3pin, 4pin), does this mean there are two sets of those or one of each?. The length of 37cm includes the fan splitter header. Four Radiator Fans via Y-Splitters:.

Gigabyte boards have CPU_FAN or CPU_OPT. This is the header to use if you decide you want motherboard control of your radiator fans (for whatever reason). Hello, Iv been working on my build and added some extra fans trying to achieve positive air pressure.

A typical 140mm 1250 rpm case fan is rated for about 0.14 amps. This is how I've had mine for years;. There are 4 CHA_FAN headers.

However, if in doubt, just connect it to the standard CPU header. That can usually be disabled in the bios so the fan would run at full speed without monitoring. And the two fans into the CPU FAN/CPU OPT headers.

I cannot reduce voltage lower than 50%!. When connecting a three wire fan to a four pin fan header, the fan is always on;. By default, anything connected to it will run at 100%.

Also the cpu-opt header is suitable for water pump and for 4 pin pwm fan. One labelled CPU_fan, one as CPU_OPT and three more as Sys_Fan. For example the MSI G43 Does it have one of each (3 pin and 4pin) for a total of 4 3 pin and 4 4pin or just 2 3.

CPU and its mirror OPT were designed for a traditional air tower with two fans. You can use it for a second fan on your CPU cooler if you have one or you can use it for a flowmeter/pump RPM sensing or even just for another case fan (like I have done). OPT will always run the same speed and CPU Fan and is not controllable on Asus boards.

Try an alternate CPU fan header. This sometimes fixes the CPU fan error. Cooler Master MasterFan PWM Hub - Supports up to 10 Fans (3-pin or 4-pin), Occupying only One 4-pin Motherboard Header (System Fan or CPU Fan) Types:.

If you have multiple CPU fan headers on your motherboard, try plugging the fan into a different slot. All 3 sys_fan headers are being used and the air cooler is using the cpu_fan slot. H100i v2 to AIO header.

BTW I've found absolutely no difference between CPU_FAN and CPU_OPT when trying both. So i have the water pump connected direct on the PSU with 3 pin adapter, thats way i have the pump to run in full speed all the time. Rear exhaust fan control is a disaster.

1 x M.2_FAN connector (intended for M.2 SSD) 1 x CPU Fan connector(s) (to be used for CPU) 1. The CPU header will likely be labelled "CPU Fan," but if it isn't, it's still easy to spot with its three holes for the fan's three-pronged plug. When load is applied.

My board in sig has all four pin headers but only those two are PWM. Here is what I was able to determine on my MB fan headers. CPU_OPT is a optional fan header for the CPU area.

Chassis and CPU fans may use either 3-pin or 4-pin power connectors. I don't think the header could support 4 fans from one header, but it was best deal I could find and then I only just reached the externally mounted fan cables (radiators mounted outside the case) as I thought the fan cables to be longer. They will run at FULL SPEED.

Anyway I've got my H115i Pro attached to the CPU_FAN header. The case came with 3 fans installed on the hub. Two Radiator Fans without Y-Splitter:.

For the 2 fans I would connect one to the CPU FAN and the other to the CPU OPT so this way if the system starts to overheat it will tell the fans to increase their RPMS, you can use a splitter and just connect em both to CPU FAN but I prefer not to do it this way. It makes more noise than my old Antec Tri-Cool, that was set to Low. My motherboard has 6 fan headers and a CPU_OPT header.

Your header is likely rated for one amp. On the case fans plugged to the CPU fan header - yes it will be controlled depending on the CPU temperature. NB is the north bridge chipset fan header.

Connect one fan to CPU Fan 1 and the other to CPU Fan 2 / OPT. The only problem you may run into is the configuration of fan speed for that fan header in the motherboard's bios. MAKES TOO MUCH NOISE.

CPU Fan 2 / OPT can be left unused. Stats and temps using CPU-Z, HWin, GPU-Z and NZXT CAM all read that the CPU is hitting 4800mhz, there's sufficient core voltage (1.250 approx), CPU does not go above 45c (around 30c idle) and Graphics Card under 'load' is. On most boards only the CPU and opt cpu fan headers are PWM.

CPU_FAN, CPU_OPT, 2xChassis FAN, AIO_PUMP, H_AMP_FAN) Corsair H115i Liquid Cooling (one connector coming out of the pump) Corsair Carbide 600C Case (It has three AF140L case fans). You probably should account for inrush current but the manufacturers already do that, well at least some do, so not that big of a worry most of the time. In addition, the two fans need to be plugged into the same type of fan header.

The answer to that may affect your decision on which header to use and if you are short headers for your case fans. Dedicated fan pwm controller or buying a fan splitter and controling several fans from one header (usually used for front intake). I connected the 4-pin to CPU_OPT and in BIOS it shows rpm on CPU_FAN.

There is no fan control. Only have 2 chassis fan headers on my MB, so I decided to use the cpu_opt header for my last. Anyway you could just connect the water pump fan (the block with wire connecter attached to it) to the optional CPU fan header.

At idle, the CPU fan turns at around 0 RPM while the rear fan goes at about 850 RPM. In fact, there are a number of ways to do so. Even though all 5 headers are 4-pin, from what I can tell, only the CPU_fan header is true PWM header.

Cooling and temps - I have a Kraken X72 liquid cooler and 7 fans (inc the 3 with the liquid cooler) in an NZXT H700i case. Opt cpu fan mirrors the CPU fan. I suppose it.

If 3-pin non-PWM fans are connected to this fan hub, this fan hub CANNOT give them extra PWM function. The Corsair's temps are sitting at 60-69C° under load for both CPU and GPU while the MSI gets noticeably hotter (around 70-77 for GPU and 75-80 for CPU). I always use the CPU fan as Gigabyte makes no distinction between the two other than name.

Connect one adapter to CPU Fan 1 and the other adapter to CPU Fan 2. If you use the CPU_OPT, would recommend you plug the rear case fan to that. The three wire connectors are for small chassis fans with lower power consumption.

ASUS support was unable to give me an answer, and I've been waiting for their "escalation" with product engineers. The reason that the manual tells you to connect your cooler fan to CPU_FAN is that by default, the BIOS is configured to control the speed of CPU_FAN based on the CPU temperature sensor, and you can expect updates the the BIOS to be configured that way too. ThreeBulls PWM Fan Hub, PC CPU Cooling 4 PIN/3PIN Fan Power Cable Hub Splitter Adapter Sleeved PWM Case Fan Splitter for 12V Desktop Computer Cooler Case Fans 1 to 5 Way (15.7 Inch) 4.4 out of 5 stars 312.

I would plug the pump into the pump header. The instructions to the H80iGT say that I have to connect the pump power cable to the CPU_FAN header on the motherboard and connect the fans that are attached to the radiator to the two connectors coming off the pump. It's powering off of the CPU_OPT header alone.

I did not use System 1 fan header and since AIDA64 did not see a Chassis 3 fan sensor I have to assume that System 1 fan header is your Chassis 3. See page 27 of your motherboard manual. Its fan control is locked to CPU temp, it is restricted with shorter fan delays, and it cannot be controlled in the same way as the other headers.

Is it better to get a fan hub?. Asus STRIX Z270E Motherboard (with the following headers:. The only one that really makes a difference is the cpu fan header as it is usually failure monitored in the bios.

CPU, Chassis, and AIO Pump.Can the AIO header be used for a normal case/chassis fan?. Its recommended that the pump be connected to an alternative fan header on the motherboard such as. My Strix Z270I itx board has 3 fan headers ():.

Such a splitter connects two. My point is, if you're on a budget, you don't want to spend more on fans and aftermarket coolers, airflow should be the focus when choosing a case. The power cable for the hub is not connected.

4-pin connectors are usually used by CPU fans with higher power consumption. Then I thought I would try swapping the fans to the CPU_OPT header and the pump to the CPU_FAN header to see if that would allow me to take the fans down to zero on the theory that with the pump running and the CPU at idle, just the natural convective cooling from the radiator would be adequate (it seemed that the CPU_FAN header would not allow. SYS_FAN is a fan header usually reserved for case fans.

Cpu_opt is my last option to fit in the case's built in controller. I also explain long ryzen bo. They usually use a small fan with a 2 pin connector.

Since I have a free CPU fan header, I am considering connecting the rear case fan to this header. Of course you would be controlling speed in groups this way. Since it is a "CPU_OPT" header, it may be tied into the settings for the main CPU fan by default.

Despite their intended use as labeled in the manual, CPU_FAN and CPU_OPT are essentially the same thing - they are PWM headers. Thermaltake Commander FX review vs PWM Y-splitter - How many fans can you add to each fan header?. And the "Y" cable for the radiator fans would connect to a regular fan header.

Well not really, all fans turn off when CPU temps are < 40. Since that header is tied to the same sensor that drives your CPU fan, the rear fan will spin up at a rate proportional. The sensor report shows the wrong fan headers for the Gigabyte Aorus Z390 master MB.

The other 4 system headers probably can regulate fan rpm by varying voltage. Can anyone confirm that the System #7 fan is actually the CPU_OPT header?. Not sure if that's normal or showing total rpm of all 3 fans??.