Cpu Opt Fan Header For Case Fan

CPU = CPU CPU OPT = System 6 Pump Chassis 1 = System 3.

Cpu opt fan header for case fan. Dec 18, 13 #4 Z. There is no fan control. 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.

A typical 140mm 1250 rpm case fan is rated for about 0.14 amps. I cannot reduce voltage lower than 50%!. Here is what I was able to determine on my MB fan headers.

Since it is a "CPU_OPT" header, it may be tied into the settings for the main CPU fan by default. 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. By default, anything connected to it will run at 100%.

Your header is likely rated for one amp. I also explain long ryzen bo. I7-8700K 4.7GHz @ 1.25V No AVX Offset, Asus Maximus X Hero Wi-Fi AC, 32GB G.Skill 30MHz CL14,.

A three wire fan connecting to a four pin fan header:. Two Radiator Fans without Y-Splitter:. And i have the cpu header and the cpu-opt header free for 2 fan's in push\pull configuration.

Since I have a free CPU fan header, I am considering connecting the rear case fan to this header. CPU Fan 2 / OPT can be left unused. AIDA64 reports 7 system fans (1 thru 7).

CPU OPT FAN is the fan header I cant control, which sucks cuz my corsair is doing alot of noise at 00+ RPMs. The fan on that header is on the side of my case, blowing air in, near the ram. On the case fans plugged to the CPU fan header - yes it will be controlled depending on the CPU temperature.

It's powering off of the CPU_OPT header alone. Manufacturers forget to say this a lot unfortunately. Opt cpu fan mirrors the CPU fan.

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. 4-pin connectors are usually used by CPU fans with higher power consumption. Your motherboard has a header for PUMP and CPU FAN / CPU OPT.

The length of 37cm includes the fan splitter header. So I repeated this setup for the new board. If 3-pin non-PWM fans are connected to this fan hub, this fan hub CANNOT give them extra PWM function.

CPU, Chassis, and AIO Pump.Can the AIO header be used for a normal case/chassis fan?. There are 4 CHA_FAN headers. I would plug the pump into the pump 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. Chassis and CPU fans may use either 3-pin or 4-pin power connectors. OPT will always run the same speed and CPU Fan and is not controllable on Asus boards.

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. The CPU fan in AIDA64 is obviously the CPU_FAN header. Rear exhaust fan control is a disaster.

On most boards only the CPU and opt cpu fan headers are PWM. Is it ok to use a splitter that ive got to connect this 3 pin fan or is the cpu header not designed for doing that?. 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.

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. If you want to monitor and control the individual fans via software, the available internal fan headers (connectors) according to the official specs are:. Well not really, all fans turn off when CPU temps are < 40.

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. The AIO came with a 3-fan splitter for the 3 fans that were included with the AIO cooler. They will run at FULL SPEED.

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. Also the cpu-opt header is suitable for water pump and for 4 pin pwm fan. Thermaltake Commander FX review vs PWM Y-splitter - How many fans can you add to each fan header?.

A better option would be splitter cables for the normal case fan headers. No answer in the manual. Try an alternate CPU fan header.

MAKES TOO MUCH NOISE. In fact, there are a number of ways to do so. 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.

Similarly with the other AIDA64 system fan designations. It makes more noise than my old Antec Tri-Cool, that was set to Low. The answer to that may affect your decision on which header to use and if you are short headers for your case fans.

If you have multiple CPU fan headers on your motherboard, try plugging the fan into a different slot. I was going to connect one fan to the cpu and one to the cpu_opt header then decided not to in case the fan speed from the two different fans caused a problem and the NH-D14 instructions specify to use the Y splitter so I figured I should continue using Noctua's recommended install. The only problem you may run into is the configuration of fan speed for that fan header in the motherboard's bios.

That can usually be disabled in the bios so the fan would run at full speed without monitoring. 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 case came with 3 fans installed on the hub.

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. The case header already has 2 pwm fans split off from it using a cable that came with my noctua af9 fan. If you dont have enough 4 pin headers on the motherboard and still want to control your fans you have 2 options:.

Four Radiator Fans via Y-Splitters:. 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. So that leaves the cpu header.

Not sure if that's normal or showing total rpm of all 3 fans??. My motherboard has 6 fan headers and a CPU_OPT header. Make sure and check the settings for it.

The four wire connectors are for processor fans with higher power consumption. And the two fans into the CPU FAN/CPU OPT headers. My Strix Z270I itx board has 3 fan headers ():.

So the two manuals are saying two different things. The sensor report shows the wrong fan headers for the Gigabyte Aorus Z390 master MB. Such a splitter connects two.

When connecting a three wire fan to a four pin fan header, the fan is always on;. Can anyone confirm that the System #7 fan is actually the CPU_OPT header?. ASUS support was unable to give me an answer, and I've been waiting for their "escalation" with product engineers.

Fans and on-board fan headers are backwards compatible. The manual for the AIO cooler says to plug the AIO cooler into the CPU FAN header, but the manual for the motherboard says to plug the AIO cooler into the CPU OPT header. In addition, the two fans need to be plugged into the same type of fan header.

NB is the north bridge chipset fan header. At idle, the CPU fan turns at around 0 RPM while the rear fan goes at about 850 RPM. Each header should support 3-4 fans without an issue.

When load is applied. My board in sig has all four pin headers but only those two are PWM. Old my old Gigabyte board the CPU fans were set to 100% at all times unless you used 4 pin fans, other fan headers could regulate the speed of both 3 and 4 pin fans.

Is it better to get a fan hub?. CPU and its mirror OPT were designed for a traditional air tower with two fans. The three wire connectors are for small chassis fans with lower power consumption.

I suppose it. I connected the 4-pin to CPU_OPT and in BIOS it shows rpm on CPU_FAN. All 3 sys_fan headers are being used and the air cooler is using the cpu_fan slot.

Its recommended that the pump be connected to an alternative fan header on the motherboard such as. This sometimes fixes the CPU fan error. H100i v2 to AIO header.

Cpu_opt is my last option to fit in the case's built in controller. Of course you would be controlling speed in groups this way. 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:.

1 x M.2_FAN connector (intended for M.2 SSD) 1 x CPU Fan connector(s) (to be used for CPU) 1. Connect one adapter to CPU Fan 1 and the other adapter to CPU Fan 2. Dedicated fan pwm controller or buying a fan splitter and controling several fans from one header (usually used for front intake).

The power cable for the hub is not connected. The only one that really makes a difference is the cpu fan header as it is usually failure monitored in the bios. Connect one fan to CPU Fan 1 and the other to CPU Fan 2 / OPT.

This is the header to use if you decide you want motherboard control of your radiator fans (for whatever reason). See page 27 of your motherboard manual.