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Wiring a PC Fan

Discussion in 'General Hardware' started by LtMatt, Aug 9, 2018.

  1. LtMatt

    Caporegime

    Joined: Jul 12, 2007

    Posts: 31,036

    Location: United Kingdom

    I've ordered some high static pressure fans from a distributor and to my surprise, they came without a fan header and would therefore need to be connected manually, and perhaps soldered.

    Where can i get this done? It is not something i feel comfortable doing myself and although i did try, i failed and it didn't work. I have 6 fans in total that need wiring, but I've got no idea of how i find someone, or a company to do it.

    Appreciate any suggestions folks may have. :)

    [​IMG]
     
  2. pastymuncher

    Man of Honour

    Joined: Jul 12, 2005

    Posts: 16,509

    Location: Aberlour, NE Scotland

    It should work with a normal fan plug as long as the wires are in the right places, diagram here. I think Sanyo Denki fans may be intended for industrial use although there is no obvious reason why they wouldn't work with a normal 3 pin plug on them.
     
  3. LtMatt

    Caporegime

    Joined: Jul 12, 2007

    Posts: 31,036

    Location: United Kingdom

    I lack anything to solder them with, so would rather pay someone a few quid to do it for me. It's just finding a company or someone to do it.
     
  4. d_brennen

    Capodecina

    Joined: Jan 30, 2009

    Posts: 14,053

    Location: Aquilonem Londinensi

    If you have needle nosed pliers, it's possible to crimp the pins, I've done it in the past. Pain in the backside though with 18 to do, but probably not worth shelling out £40+ for a half decent crimp. If using solder, but be careful not to foul the connector housing. A touch too much solder or a spike and it won't fit, it's really a case of less is more.

    Hopefully there is someone on here that has the tool for the job and will help you out
     
  5. NovaKill4

    Gangster

    Joined: Jan 22, 2012

    Posts: 101

    For soldering work you would need to find an electronics repair shop, there's not that many of them left now but someone there may have some soldering experience.
     
  6. LtMatt

    Caporegime

    Joined: Jul 12, 2007

    Posts: 31,036

    Location: United Kingdom

    Thanks for the suggestions guys.

    I'm hoping a friendly soul at OcuK forums can help for a few quid, but if not i may have to look for an electronics shop in Norwich. God knows if ill find one mind. :D
     
  7. PaulCa

    Gangster

    Joined: May 3, 2018

    Posts: 297

    I'm not sure where you are but try asking on http://www.eevblog.com/forum/ if you can find someone local to you.

    Obvious insert normal caution about meeting people off the internet.
     
  8. pastymuncher

    Man of Honour

    Joined: Jul 12, 2005

    Posts: 16,509

    Location: Aberlour, NE Scotland

    If they are the same as in your picture then they don't need soldering. The pins crimp onto the wires and are then pushed into the plug until they lock. You can get a half decent set of ratchet crimping pliers on Ebay for less than £15. The ones I use are similar to these.
     
  9. Tealc

    Soldato

    Joined: Jul 13, 2009

    Posts: 6,966

    Location: Llanelli

    I'd offer to do it. I've terminals, connectors and all the soldering stuff you could shake a stick at. I am however a very long way from Norwich.
     
  10. LtMatt

    Caporegime

    Joined: Jul 12, 2007

    Posts: 31,036

    Location: United Kingdom

    Thanks bud.

    I could ship them to you and arrange a collection of the fans once you are done? Don't mind giving you a few quid for doing it either. I'll just mess it up if i attempt it myself :p
     
  11. Tealc

    Soldato

    Joined: Jul 13, 2009

    Posts: 6,966

    Location: Llanelli

    Just realised there was a Spoiler...... thought this more complicated to be honest.

    In fact it looks really straightforward.

    A little shortening of bared conductor to around 2.5mm. Using a set of pointy nose pliers to fold the crimp around the bare conductor. Then if desired a dab of solder on top and shove in the relevant hole. I've done this hundreds of times for all the little PWM converters I sold a few years back. I only once or twice ran too much solder which was fixed by heating back up and flicking it off.

    Not sure how else it could be messed up really. If you did, for example mess up a terminal they are available in their dozens on ebay for £1. The connectors like wise.

    Just thinking that the cost of shipment both ways is completely unnecessary here. Even the cheapest of the cheap soldering iron could cope with this.

    If you want to give it a go I can help you with diagrams or whatever.
     
  12. PaulCa

    Gangster

    Joined: May 3, 2018

    Posts: 297

    This of course assumes the wiring diagram is with the fans as to which wire is which and they are actually standard and as expected. PC PWM fans follow a standard, but are these standard fans?
     
  13. LtMatt

    Caporegime

    Joined: Jul 12, 2007

    Posts: 31,036

    Location: United Kingdom

    I didn't attempt a solder.

    More than happy to ship and from you @Tealc if you can do it for me? I would rather do that than do it myself. :)

    @PaulCa
    I think they're standard fans, just with a slightly higher power draw (0.31a) than typical fans due to the higher rotational speed.
     
  14. ANDARIAL

    Soldato

    Joined: Oct 19, 2002

    Posts: 5,403

    Location: Woolyback Country

    Thats about 3.72 watts?
    Is that a bit too high for direct mobo connection?How many you intending to connect to mobo?
    Lastly, i assume they are to be connected to a motherboard?I ask as recently i swapped a fan in my new UPS as it was too loud Bog standard fan with a gfx type connector i had to mod ,anyway cables were standard colour but had to rearrange order to get them to work
     
  15. LtMatt

    Caporegime

    Joined: Jul 12, 2007

    Posts: 31,036

    Location: United Kingdom

    I have a 35W fan controller, they will not be connected to the motherboard.

    I have 6x fans, 3 will be used in one system and 3 in another, both using the same fan controller. Should run them fine.
     
  16. pandem0nium

    Wise Guy

    Joined: Dec 5, 2010

    Posts: 2,312

    Location: Solihull

    Back to the Lt name Matt? I take it you're not a AMD rep any more?
     
  17. LtMatt

    Caporegime

    Joined: Jul 12, 2007

    Posts: 31,036

    Location: United Kingdom

    I just wanted my old name back as my job at AMD no longer focuses around this forum as a community rep, i just come here to help out in my spare time.
     
  18. pandem0nium

    Wise Guy

    Joined: Dec 5, 2010

    Posts: 2,312

    Location: Solihull

    Ok brill, good to hear it.
     
  19. EsaT

    Mobster

    Joined: Jun 6, 2008

    Posts: 3,972

    Location: Finland

  20. Tealc

    Soldato

    Joined: Jul 13, 2009

    Posts: 6,966

    Location: Llanelli

    Ok I can do it. The only issue I'd have is return shipment as I'm not around in the day.