Splitter for fans with additional power

Cooler connection to PSU or battery

To connect to the power supply use regular connectors, if you want to change the number of revolutions (speed) need to simply reduce the applied to the cooler voltage, and this is done very simply by rearranging the wires on the socket:

splitter, fans, additional, power

So you can connect any fan and the lower the voltage the less speed, respectively, the quieter its work. If the computer is not particularly warm, but very noisy can use this method.

To power it from batteries or rechargeable batteries, simply connect the plus wire to the red one and the minus wire to the black one. It begins to rotate at about 3 volts, the maximum speed will be about 15. You should not increase voltage more than this, motor windings will burn out from overheating. The current consumption will be about 50-100 mA.

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Each Hydro X splitter will connect two fans to one fan controller. Thus you can significantly increase the total number of connected fans with PWM-controlled CORSAIR iCUE Commander PRO module (up to 12 fans when using six splitters).

Package contains three cables, each with one (1) male and two (2) female 4-pin connectors for PWM control.

How to find the batch number

Lot numbers for Corsair products can usually be found in the locations shown below. For more information for individual product series, see the Corsair Knowledge Base article on batch numbers.

Headsets. Number is located on the ear piece.

Speakers. The number is located on the back of the subwoofer.

Case. Number located on back panel.

Cooling. Number is located on the heatsink.

Flash drives. The number is located on the package, next to the UPC bar code.

Solid State Drives. Number located on sticker on top of drive.

Mice. The number is located on a sticker near the USB connector.

Keyboard. The number is located on the package, next to the UPC barcode.

Memory modules. The number is located on a sticker right on the module.

Power Supply. The number is located on a sticker on the power supply, next to the serial number.

Automatic speed control cooler 3-pin or reobass with your own hands

I want to tell at once that the review was not planned and the photos were taken with an iron, so the quality will be appropriate. But I thought, that this review may be useful. Also I should warn you, that my knowledge in the world of radio components is on a, let’s say, very low level.

It all started with the fact that I decided to go for a cheap and at the same time productive platform 2011-v3 with minimal financial investment. Before that I used AM3 platform with Phenom II X4. When studying the market of Chinese motherboards I chose the cheapest, four-channel motherboard X99z v102, aka Machinist x99, Kllisre x99 etc.д. On this board there are only 2 connectors for the cooler. one 4 pin, and one 3 pin.

The way it works is that it takes a PWM signal from the motherboard and transmits speed sensor readings from the cooler connected to the red connector. PWM signal is branched off to all the jacks of the splitter and the 12 volt power and ground is taken from the Molex connector.

All coolers except CPU cooler are 3 pin and as you know are compatible with 4 pin connectors, only without rotation control. Everything would be fine if it weren’t for the increased noise of the coolers.

As it turned out, my previous Gigabyte motherboard may not have regulated RPM of the three-pin coolers, but they didn’t run at full speed on it. For example the front panel cooler was always on 1200 RPM, almost noiseless and I thought that was its maximal RPM. But on the new motherboard it started to make more than 2k. I don’t like 4 pin coolers and they make really uncomfortable noise.

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I started to look at of 4 pin coolers and frankly speaking. I didn’t like them). Then I decided to buy a reobass, but I was not satisfied with the manual speed control, and those that regulate the speed of the temperature sensor, with the need to place it in a PC case, mostly had one connector for a cooler.

Next, the great and mighty Google gave me a lot of interesting articles on the query “How to regulate the speed of a 3 pin cooler” and it was decided to make a re-bus based on the splitter, bought earlier and a field-effect transistor.

I chose the n-channel transistor IRLZ34NPBF. datasheet, because it seemed to me the most suitable from what was available in our city, the resistors I had.

There seems to be no need in those schemes that I found earlier. But at the assembly I accidentally read about inductive load for transistors and that it is necessary to put a protective diode. Good thing I had some Schottky diodes. 1N5819, because I was doing it all at night and did not want to stretch it over several days. A schematic diagram which I used as a guide when assembling

The automatic 3-pin cooler speed control or a reboost with my own hands

I want to say right away, that I did not plan the review and photos were taken with an electric iron, so the quality will be appropriate. But I thought that this review may be useful and overcame myself. sat down to write. Also, be warned that my knowledge in the world of radio components is, shall we say, at a very low level.

It all started with the fact that I decided I would switch to a cheap, yet productive, 2011-v3 platform with minimal financial investment. Before that I was sitting on an AM3 platform with a Phenom II X4. While searching the market of Chinese motherboards I chose the cheapest, four-channel mother X99z v102, aka Machinist x99, Kllisre x99, etc.д. On this board only two connectors for cooler. one 4 pin and one 3 pin.

The way it works is that it takes a PWM signal from the motherboard and transmits speed sensor readings from the cooler connected to the red connector. The PWM signal is split at all splitter connectors and the 12 volt power and ground is taken from the Molex connector.

All my coolers except processor’s are 3 pin and as you know are compatible with 4 pin connectors, only without rotation control. Everything would be fine if not for the increase in noise of the coolers.

As it turned out, my previous Gigabyte motherboard may not have regulated speed of 3 pin coolers but they did not run at full speed. For example the cooler on the front of the case was always running at 1200 rpm, almost noiseless, and I thought that was its maximum rpm. But on the new motherboard, it started hitting more than 2k. I didn’t like the RPMs and they made a very uncomfortable noise.

Started looking at the of 4 pin coolers and I’ll be honest. I didn’t like them). Then I decided to buy a reboost, but I was not satisfied with manual adjustment of RPM, and those that regulate RPM by the temperature sensor, with the need to place it in a PC case, mostly had one slot for the cooler.

Next, the great and mighty Google gave me a lot of interesting articles on the query “How to control the speed of a 3 pin cooler” and it was decided to make a reobass based on the splitter, bought earlier and a field-effect transistor.

I chose n-channel transistor IRLZ34NPBF. datasheet, because it seemed to me the most suitable of what was available in our city, the resistors I had.

It seems that nothing else is needed on those schemes that I found earlier, but I accidentally read about the inductive load for transistors and that it is necessary to put a protective diode. I was lucky to have the Schottky diodes. 1N5819. I didn’t want to take several days to assemble it all at night. Here’s a schematic diagram of what to do when reassembling

Wiring diagram

Now that we have the types of fans figured out, let’s plug in a new one. Let’s start with replacing it in the power supply. Here everything is relatively simple. Buy device of the same size and install it instead of the burnt out one. If the number of pins in the connectors of the old and new match, just insert the “plug” into the “socket” on the PSU board, observing the coloring.

If we have a two-pin socket on a PSU and a three- or four-pin plug on a cooler, connect it this way to use only the power wires. Let’s leave the rest hanging in the air. For example the picture below shows a four pin plug installed in a two pin socket.

If the elements of the circuit board prevent you from connecting the plug, you can simply cut its body in two, thus shortening it to the size of a two-pin. Exactly the same if the socket has three or four pins, and the plug of the fan two. Simply plug it into the appropriate sockets, leaving the others unused. Of course, in this case, no speed regulation and speed control is out of the question, and it will always be spinning.

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How To Add Extra Fan Headers To Your PC Build

Important! In order not to insert the plug of the new fan backwards, before you disconnect the old one, it makes sense to write down how it was connected and the color of the wires, not forgetting that a four-pin plug has a different color than a two- or three-pin.

Installing additional fans

If we decide to install an additional fan in the system unit, we have to find a separate socket for its connection. It is good if the motherboard manufacturers have foreseen this point and have provided their product with additional sockets. Usually they are three pin and marked as CHA-FAN. In the picture below the motherboard has two of these connectors.

Another option is to use the PWR-FAN jack (if available). This socket is intended for power supply fan connection, but most modern PSUs have their own sockets for this purpose. Any type of 12-volt fan can be plugged into these sockets, but keep in mind that its rotation with a two-pin plug will not be controlled by the system, and if it fails, we will know about it after the fact.

How to connect to a power supply directly

If there are no additional sockets on the motherboard, or they are all occupied, the last variant is to connect the case cooler directly to the power supply unit. The most convenient way to do this is to use a Molex connector. It is usually used for IDE drives, which are obsolete now, so there are free sockets on almost any power supply unit.

The purpose of the wires of such a socket is as follows:

Since all case fans are powered by 12 volts, we will be interested in the black and yellow wire. If our cooler has a two or three pin fork then the connection diagram will be similar to the picture.

If we have a fan with a four-pin plug, then connect it like this:

We’ll need a Molex plug for this purpose. You can either buy it at a salvage yard (they can just give it as a present) or in a store as a part of the adapter. Buy an adapter, cut the plug, solder the fan to it. and it’s done.

It is useful! If you look hard, you can make it even easier. buy a ready-made adapter for the cooler.

Reducing case fan speed

Usually case fans have only auxiliary functions, so they are often turned on at low speed. It has little effect on cooling quality, but the noise level is noticeably reduced. You can, of course, turn the cooler via a suppression resistor, but it’s extra work to calculate its resistance and soldering, plus the substantial energy consumption for heating the resistor itself.

But, using the Molex connector for power, you can reduce the speed by simply changing the pinout of the plug. If you connect the black wire of the cooler to the red wire of the PSU connector, then the fan will receive 12. 5 = 7 V. It is known from practice that this voltage is more than enough for its reliable operation.

Fan Power Adapters. 563 items found.563 goods

Adapter for connecting a 12V 3 pin fan to the power supply’s Molex connector. 12 V 3 pin fans. it is first of all computer case or processor fans. Length. 0.2 meter (20 cm)

Power Adapter for the Fan 0.1 meter, Black, Red, Yellow, Molex 8981 (4-Clamp) “Dad”, Molex 8981 (4-Clamp) “Mom”, 3-pin for the fan

Name Fan Power Adapter 4pin to 4x3pin / 2pin cable 12v 5v / Purpose Connecting 4 additional case fans to 3pin Connectors Molex 8981 4-pin (Dad) 3-pin for the fan (Mom)

Y-coupler for 4-pin PWM fans, length: 115 mm, 3 pcs

Fan power connector 3pin or 4pin covered with braid. Up to four 12V fans can be connected. From power supply, molex connector Length: 270mm

Connectors: CEE 7/7 (Schuko). IEC C5, features: Angled connector, cable length (computer cables): 1.80 м

Hub for connecting up to 10 PWM fans. Has 10 fan connectors, a molex connector for power, and a motherboard connector. It comes with a 50cm cable to connect to the motherboard.There is a hole for mounting.

Espada molex(1big)-4x3pin fan power adapter

Cable length (computer cables): 0.04 м

Adapter to power fans 3pin or 4pin from power supply, molex connector Length 270mm

Adapter for power supply for fans 3pin or 4pin from power supply, molex connector 270mm long

Adaptor to power two fans 3pin or 4pin from PSU, molex connector 270mm

Power Adapter for 4 Pin Fans.24 pins Noctua NA-SYC1 4-pin PWM, 2pcs

Fan power connections 3pin or 4pin covered with braid. Up to four 12V fans can be connected. From power supply, Molex connector 270mm long

Cable length (computer cables): 0.15 м

Power Cable for Graphics Cards 8 pin PCI-E. 2xMOLEX, 0.15 м

Adapter to power two 3pin or 4pin fans from power supply, molex connector Length: 270mm

Type: splitter, cable connectors: Molex 4pin (m). 2xSATA 15pin (f), cable length: 0.15 м

Common motherboard fan connectors support up to 9.6 or 12W. So make sure that total power consumption of fans connected to one fan connector with NA-YC1 adapters does not exceed this value!

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A 2 molex to 6 pin power cable comes in handy if you decide to install a graphics card which requires additional power in your system box. This adapter has three connectors. On one side is a 6-pin PCI-E connector that connects to the graphics card. On the other side.

Braided cable to power three 3pin or 4pin fans from power supply, Molex connector Length 270mm

With adapter EURO-1, you can connect the European plugs with round pins and American (Chinese) plugs with flat pins, for example, in the Russian sockets. Often this adapter is bought for the products of the brand Xiaomi.Ideal for gadgets from Xiao.

Connectors: SATA 715pin (m). SATA 7pin (m)/Molex 4pin (m)

The power cable comes in handy if you need to install a graphics card which requires additional power.The adapter has three connectors: 8-pin PCI-E, which connects to the video card and two Molex connectors, which connect to the power supply.Cable lengths (15cm).

Connectors: SATA 15pin (m). 4 x SATA 15pin (f), cable length (computer cables): 0.40 м

Cable length (computer cables): 0.15 м

Accessory type: Adapter, Part type: Faucet

The Cablexpert CC-PSU-81 adapter is designed to connect a PCI Express video card equipped with an 8-pin connector to two Molex type power connectors

Type: splitter, cable connectors: Molex 4pin (m). 2xMolex 4pin (f), cable length: 0.15 м

Fan Power Adapter 3 pin.23 pin Noctua NA-SYC2 3-pin, 2pcs

Cable length (computer cables): 0.15 м

PC case fan splitter from 4pin to 3pin 0.25 m braided Designed to connect up to three fans to one power connector. You can use both 3pin and 4pin connectors on both the board and fans. The braid prevents tangling and sn.

Name Fan Power Adapter 4pin to 3pin4pin Purpose molex (4pin power). occurs on computer power supplies, hard drives, optical drives, backplanes of server platforms, hard drive baskets. Molex connectors 89.

Connectors: Molex 4pin (M). 2 x SATA 15pin (F), cable length (computer cables): 0.30 м

Fan Power Adapter 4pin to 4pin3pin, 15cm

Connectors: SATA 15pin (m). Molex 4pin (m), cable length (computer cables): 0.15 м

Type: splitter, cable connectors: Molex 4pin (m). 2xMolex 4pin (f), cable length: 0.15 м

Titan 4pin 3pin Fan Power Adapter [Y-4P2

Manufacturer: ORIENT Type: Adapter Cable connectors: SATA 15pin (m). Molex 4pin (f)

Connectors: Molex 4pin (M). 2 x SATA 15pin (F), cable length (computer cables): 0.30 м

Power Adapter for 12V computer fan. Adapter allows you to connect a fan with a 3-pin connector to the Molex connector. Cable length: 15 cm

Type: splitter, cable connectors: SATA 15pin (m). 2 x SATA 15pin (f), cable length: 0.15 м

The RobitonTravelEnergy Power Adapter allows frequent international travelers to use the electrical appliances they bring with them almost anywhere. A tourist from the USA can use it to replenish the power of his phone or camera with his charger.

Why the splitter for case fans does not work properly?

I bought a compact motherboard with only one socket for the CPU cooler and one socket for the system fan (both 4 pin). The case allows 4 regular sized case coolers so I didn’t skimp on cooling so I bought 4 good sized case coolers and put them in. Only problem: there is only one power connector for case fans on the motherboard I bought. There were also splitters with the turntables, and originally the whole system worked on them. But later it became clear that one 4-pin connector does not supply enough power for 4 case coolers.

To solve the problem of power supply, I bought a special Port Hub for PWM Fans, which is a board that connects power from the PSU, connect the necessary coolers and PWM wire from the motherboard to regulate the speed (it connects to a standard socket for system fans, but it takes only PWM signal). It would seem that what could go wrong?

But it turned out that PWM power control from the motherboard does NOT work when you plug the cable for PWM into the 4-pin connector for powering/controlling the power of case fans. BUT it works when I plug the cable into the 4-pin connector to power the CPU cooler. One interesting observation: when you connect a hub to the port for the system fan, the speed of the fans is not regulated, but the speed of the marker cooler is properly read.

Now I had to connect all four fans and the CPU cooler to the Por(n)t Hub for PWM Fans, and control that happiness through the CPU fan connection port. Here’s a question: WHY IT WORKS/WHY IT ISN’T WORKING? What is the difference between the connector for the system fans and the connector for the CPU cooler?

Fan splitter for 4 pcs Molex 4pin to 2pin

Power splitter for PC computer cooler fans can connect 4 pcs.

WARNING! Our store is moving to a new site. This product is available. You can buy it here.

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