#23 in Computer cables & adapters
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Reddit mentions of 3-Pin to 4-Pin Adapter

Sentiment score: 7
Reddit mentions: 12

We found 12 Reddit mentions of 3-Pin to 4-Pin Adapter. Here are the top ones.

3-Pin to 4-Pin Adapter
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Specs:
Height0.3 Inches
Length1.5 Inches
Weight0.02 Pounds
Width1.5 Inches

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Found 12 comments on 3-Pin to 4-Pin Adapter:

u/bdnicho · 3 pointsr/techsupport

Yes, something like this 3-pin to 4-pin molex adapter will do the trick. Note that this will only power the fan, though, and will not give RPM monitoring or control to the motherboard, so the fan will just run at full speed all the time.

u/tielknight · 2 pointsr/pcmasterrace

Did the fan come with the case? If so check the case box and you should find a Molex-adapter for the fan(something like this or like this) so it will run off the power supply. It'll be a bit louder but if the front fan is the same as the rear fan it will still be pretty damn quiet even at full blast, at least my Spectres were.

u/TheWingedPig · 2 pointsr/buildapc

So far as I can tell all those parts are compatible. However I'd look into maybe getting a different motherboard. The one you picked is fine, but if you'd be willing to pay an extra $25 you could get this one. It's got 4 slots for RAM instead of two, for a maximum of 32gb instead of 16. It also has support for USB 3.0, and SATA 6gb/s. That HDD you picked does 6.0gb/s, but your mobo only has 3.0gb/s so you wouldn't be fully utilizing that it.

As for the USB 3.0, that mobo I listed has two ports on the back, but also an internal connector for the front pannel of the case. However the case you picked doesn't have USB 3.0 ports, so you might look into getting one that does. This is the case I'm using. After the mail-in rebate it's a little cheaper than the one you listed, and it has two USB 3.0 ports on the front which is nice.

However, if you do decide to get that case and that mobo I should warn you about a few things. If not, then disregard this paragraph. First of all, the four fans that come with the case are really nice in terms of air flow, but that mobo has nowhere to plug them in, so you'll have to plug the fans directly into the PSU instead. That's not a big deal or anything, but you'll need to buy an adapter to do that. PSU plugs are called molex, and the fan plugs are just called three-pin (although some fans use four-pin etc.) I went to my local Microcenter because I didn't want to wait for shipping (didn't discover this until mid build), and they had one that was four 4-pin to one molex, which was perfect. It should look something like this, (the molex is the bigger plug, and the three-pin is the smaller one). Try and see if you can't find one that doesn't have an extra molex on it, and has extra three-pins just so you have less cable in there. Also, that case isn't ideal for mounting SSD, because of where it places the 2.5" mounts (won't affect you since you don't have a SSD). It was also a bit hard to install the optical drive in the top 5.25" slot simply because you have to push in two pegs on the side to remove the 5.25" panel, but there are little plastic things in the way of the very top one. I had to bend the panel a bit to get them out (also not a big deal, because you'll probably end up throwing that panel away afterwards anyway).

Also, don't just take my word for it. When you've modified your build, or decided that the one you have is good, make a new post so more people see it. I'm not the best in terms of giving advice on the best bang for your buck in terms of GPU and CPU, and others could help you there. ALtough i do have almost that same CPU. I've got the intel i3 2120. Here's my build in case you were wondering.

**EDIT*** Ok, so here is the exact cable I was talking about. Microcenter says they are out of stock, but you get the idea of what I was talking about.

u/BananasApeUnicorn · 2 pointsr/buildapc

Alright, so just hook up the case fan directly to the motherboard and see if it can start up. Maybe the adapter is defective.

I should have been more specific, but I actually meant this kind of molex adapter.

You should be able to hook up the case fan to PWR/SYS fan header on the motherboard, if its the small 3 pin connector and it isn't necessary to use an adapter in this case to plug into the PSU.

If you need more help reply or PM me.

u/foragerr · 2 pointsr/buildapc

These are called 4 pin molex connectors. You wont find sockets on your motherboard to plug them into. Your PSU might have one or two though.

You have one in and one out on the fans coz you can daisy chain them. As in if your PSU has 1 4-Pin-Molex out, connect the fan to that, and you can connect a second fan to 1st fan's out.

There might be converters from motherboard pin to 4-pin-molex, let me look.

EDIT: here

u/consonaut · 1 pointr/buildapc

The description of your case implies that those are LED lighted fans that should be attached to the front panel fan control.

Are there any other connectors coming from where your power button is located?

You will only need those fans if you plan on running the PC 24/7 but I get that you want them working anyway.

*EDIT: If there are no additional connectors from your front panel, you would need something like this I guess, to attach your case fans to the 3pin fan connectors on your board. Make sure there are enough fan connectors on your board first.

u/wehwehtime · 1 pointr/buildapc

Correct. There are various models of the fan and their controllers - I've found. The AZMtronics fans (pretty much the same fan, different board) connected via molex, but the board allowed for 2 fan settings (high and low). There is a 4pin OUT header...but that seems to be for if you wanted to connect an RGB LED strip rather than a 4pin connection.

Correct about the reset switch on the tower. The board transforms that switch's input to change the light setting...aka - red, blue, green, or pulse, or gradual color change, or off (I think there are just 5 presets total). Sidenote - that works because I'm using it now haha.

And yes, I agree - MOLEX cannot adjust speed. But what I was wondering was that IF I did NOT have a fan header in the LED system's board, can the molex connector be connected to an adapter that CAN control the fan speed?

AKA...would something like [this work...]
(https://www.amazon.com/Alpha-Omega-148-0027-Adapter/dp/B000BSJGL0/ref=sr_1_7?ie=UTF8&qid=1498778736&sr=8-7&keywords=molex+fan+header)

Molex from fans connects to adapter. Adapter pin connects to mobo. Other molex goes to PSU? Do I have this right?

u/theroofisonfirelib · 1 pointr/buildapc

It is difficult to see the three pin connection from the picture. I believe you are looking for the following.

​

https://www.amazon.com/148-0027-3-Pin-4-Pin-Adapter/dp/B000BSJGL0

u/FrankeyMankey · 1 pointr/pcmasterrace

Is it better to use a fan splitter cable like this https://www.amazon.com/SilverStone-Technology-Sleeved-Splitter-CPF01/dp/B00B46XKKQ that connect directly to the board or get direct PSU fan cables/passthroughs like this https://www.amazon.com/Alpha-Omega-148-0027-Adapter/dp/B000BSJGL0/ref=pd_sim_23_3?ie=UTF8&psc=1&refRID=BVYPBTJHZB4KKFH4C2HJ to add more fans than there are mobo fan headers? (Note: I'm not sure if either brand is reliable and will do research on what company makes the best of those cables)

Also, why are LED fans cheaper than non LED fans?

u/PCMRBot · 1 pointr/pcmasterrace

Testing new things, I need your help.


> /r/theydidthemath has a neat 'points' system that I feel would be super awesome to have in our Daily Simple Questions thread. If you ask a question, and someone answers it correctly, reply with a thank you, but include this checkmark: ✓ ( or if you cannot enter Unicode, use !check instead )

> This will score the user whose comment you replied to a 'point'. I don't know what these points will be used for or if this feature will be a permanent thing. This is where you come in. If there's a good response and it works like I want it to, this could be a great way to incentivize people helping.

Now, get out there and help some people!

-\/u\/eegras

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In case you missed it, click here for yesterday's Daily Simple Questions thread. There may be some questions still unanswered! Below are a selection of questions with no replies. See if you can help them out.

If you don't want to see this comment click the little [-] to the left of my username to collapse this comment.

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> I have a 1TB HDD for mass storage (and 128gb for OS), being the PC enthusiast that I am, I want to run on SSD only storage from this point on.
> I want to get a 500GB SSD (750 EVO) this month, and the coming few months 1 SSD of 500Gigs at a time.
>
> Is this a smart idea or am I better off saving money for 1 big 1TB or 2TB SSD?
>
> In the netherlands, the 750 EVO 500GB is around 120 euros

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7p6jnr

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> I've just installed Windows 10. What are some things that I should remove? I found this thread but it's like a year old so I don't know if the same things still apply https://www.reddit.com/r/pcmasterrace/comments/3f10k0/things_to_removedisable_in_windows_10/

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7p5ss4

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> hello
> i've got a problem with my pc but i'm not sure what it is
> my setup is
> 970 gtx
> i5 4590
> 2x8gb ram
> b85 mb
> anyway, its nothing unusual
> When i play overwatch on high settings my pc turns off after really short duration of playing. I don't get any fps drops or any weird things going. Same happend in word of tanks beta hd.
> Ive got OCZ 600W stealth stream 2 PSU, the power seems to be enough but as far as i looked for answers everyone says its psu. When i did a stress test in furmark it didn't turn off, my psu is a bit older then rest of my pc.
> Is there a way to check if its psu or any other component failing?

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7p5iyg

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> Are there any really clear UV reactive dyes I could use for my system? I just have clear distilled water in my loop but I'd love for it to also be UV reactive without making it also colored.

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7opu5s

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> What's an, or some, ideal rectangular tables for this space right here: http://i.imgur.com/y6KBwP1.jpg
> As you can see it's a pretty garbage table and I'm willing to get rid of it as quick as possible, as well as organize the things on the table.

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7oni4l

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> Anyone know if the AM1M-A board supports hot-swapping?
>
> Also - how do you set a particular drive to be marked as external? is it done by the bios or os?
> Thanks

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7ojsn9

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> Sata power cable on this CX 500 is too fat to be able to plug into the SSD, any recommendations on extensions?

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7oe85n

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> Good place for buying custom sized mousepads?

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7odl76

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> Where is AMD Catalyst Control Center saved by default? I want to overclock my monitor and can't figure it out.
>
> Edit. Advanced settings through AMD Preferences.

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7oc2w8

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> EA is asking me to verify my game (BF4) but when i bought it didnt come with a verification code since i bought via origin store, is this normal?

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7o8bmp

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> so I own the Cooler Master HAF 912 ATX Mid Tower Case and I really want my setup to start going a color theme or something like that do I need to buy a new case with a window. Im kinda wanting to go black and red a little because of my brand new HyperX Cloud 2s any one have suggestions? Is there anything I can do to my current setup to make it start following a theme? here is my current build PCPartPicker part list / Price breakdown by merchant
>
> Type|Item|Price
> :----|:----|:----
> CPU | Intel Core i3-6100 3.7GHz Dual-Core Processor | $110.99 @ SuperBiiz
> Motherboard | MSI H110M Pro-VD Micro ATX LGA1151 Motherboard | $55.99 @ SuperBiiz
> Memory | Crucial 8GB (2 x 4GB) DDR4-2133 Memory | $35.98 @ Newegg
> Storage | Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive | $45.89 @ OutletPC
> Video Card | EVGA GeForce GTX 960 4GB SuperSC ACX 2.0+ Video Card | $220.00
> Case | Cooler Master HAF 912 ATX Mid Tower Case | $54.99 @ Newegg
> Power Supply | EVGA 500W 80+ Bronze Certified ATX Power Supply | $43.49 @ SuperBiiz
> Operating System | Microsoft Windows 10 Pro OEM 64-bit | $0.00
> Monitor | Samsung 2333T 23.0" Monitor | $100.00
> Keyboard | Razer BlackWidow Chroma Wired Gaming Keyboard | $145.28 @ B&H
> Headphones | Kingston HyperX Cloud II 7.1 Channel Headset | $91.99 @ Newegg
> Other| Tax| $60.00
> Other| Dell Premium 6-Button USB Laser Scroll Mouse J660D| $0.00
> | Prices include shipping, taxes, rebates, and discounts |
> | Total (before mail-in rebates) | $979.60
> | Mail-in rebates | -$15.00
> | Total | $964.60
> | Generated by PCPartPicker 2016-09-15 14:53 EDT-0400 |

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7o6g5c

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> http://pcpartpicker.com/list/46wfyf
> Will these parts fit in the case? It's a Mini ITX build.

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7o5liu

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> Is it better to use a fan splitter cable like this https://www.amazon.com/SilverStone-Technology-Sleeved-Splitter-CPF01/dp/B00B46XKKQ that connect directly to the board or get direct PSU fan cables/passthroughs like this https://www.amazon.com/Alpha-Omega-148-0027-Adapter/dp/B000BSJGL0/ref=pd_sim_23_3?ie=UTF8&psc=1&refRID=BVYPBTJHZB4KKFH4C2HJ to add more fans than there are mobo fan headers? (Note: I'm not sure if either brand is reliable and will do research on what company makes the best of those cables)
>
> Also, why are LED fans cheaper than non LED fans?

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7o5aw2

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> I'm using my mouse with a bungee cord (for cable management) and the mouse cable is developing a small kink. Any tips for straightening these out?

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_15_2016/d7o4ngp

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> I am using an NZXT Grid V2 fan controller, does anyone know if I have to actually be running CAM in order for my fan profiles to be active?
>
> And does anyone have any recommendations for a monitor mount/stand for a 27 and 24 inch pair of monitors?

/r/pcmasterrace/comments/52wajw/daily_simple_questions_thread_sep_152016/d7o0x4k

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u/cscrawfo · 1 pointr/buildapc

Use molex 4 pin. You can chain them together to add as many fans as you want!

Molex to 3 pin