Not enough fan connectors

By stevenhomz
Jan 17, 2009
  1. I am using a case that has three fans two up front and one at the rear. When connecting them to the mobo there was only two sockets so i attached one front and one rear. Is there a way to connect all three or some part available to allow the two front in the same socket?
  2. kimsland

    kimsland Ex-TechSpotter Posts: 14,525

    Quite normal
    As I have multiple Fans too, my M\B ran out of connections as well
    I ended up using one of the PowerSupply connectors. Note: I had specifically purchase a fan that had this connection on - directly to PowerSupply, but you can purchase adapter wiring that allows your 2 or 3 pin wire to connect into the PowerSupply connector.
  3. Coxis

    Coxis TS Rookie Posts: 21

    Keep in mind that fans connected directly to the PSU will always run at full speed, so choose wisely.
  4. kimsland

    kimsland Ex-TechSpotter Posts: 14,525

    Damn I forgot to say that
    I was even thinking it whilst replying above
    Thanks: Coxis
  5. stevenhomz

    stevenhomz TS Rookie Topic Starter Posts: 39

    will a fan running at full speed cause a problem or will it just be noisy? and is connecting the fan to the psu the only option
  6. kimsland

    kimsland Ex-TechSpotter Posts: 14,525

    No doubt there's some PCI card with fan controllers out there, that I'm not aware of
    By the way, I am aware of PCI cards that include a Fan (generally made to cool PCI-E Video cards)

    Anyway, mine have been noisily (not that noisily really) running at full speed for way over a year, so no issue
  7. stevenhomz

    stevenhomz TS Rookie Topic Starter Posts: 39

  8. kimsland

    kimsland Ex-TechSpotter Posts: 14,525

    Yes I am aware of those, if you do not have a direct fan connection to the powersupply plugs


    Otherwise, just use fans with the powersupply plugs already made

    Oh I lost the point

    Yes they're good :)
  9. Coxis

    Coxis TS Rookie Posts: 21

    Interesting, I didn't know such a cable existed... looks neat. So, can the motherboard (or the user) control the fan speed of two fans simultaneously? If using that splitter cable, that is.

    What if the fans have different RPM limits? Also, won't it increase the chances of frying the mobo? since you're exceeding the voltage that fan controller can handle... or something like that.
  10. stevenhomz

    stevenhomz TS Rookie Topic Starter Posts: 39

    I used the splitter cable for the two front fans which should run at the same speed. I doubt they will cause the mobo any voltage problems. I have had them running for a couple of days and everything seems fine.
  11. captaincranky

    captaincranky TechSpot Addict Posts: 10,865   +1,523

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