Results 1 to 9 of 9

Thread: Fans,Headers or PSU

  1. #1
    Senior Member
    Join Date
    Aug 2006
    Location
    Money Grabbing Overtime Whore
    Posts
    545
    Thanks
    44
    Thanked
    25 times in 22 posts
    • SuicidaL's system
      • Motherboard:
      • Asus Rampage Formula X48
      • CPU:
      • Q9450 + Heatkiller 3.0LT custom loop
      • Memory:
      • 4Gb Corsair Dominator 8500
      • Storage:
      • 2x 1Tb Samsung F1's, 320Gb Samsung F1, 250Gb Samsung Spinpoint
      • Graphics card(s):
      • MSI 6870 ref + EK FC6870 custom loop
      • PSU:
      • Silverstone Strider Plus 750w
      • Case:
      • Coolermaster HAF-932
      • Operating System:
      • Win7 Pro
      • Monitor(s):
      • 22" Iiyama E2209HDS
      • Internet:
      • VM 50meg

    Fans,Headers or PSU

    i've just started having this quirk with my rig the last couple of days, and looking for some ideas as to what the issue could be.


    rebuilt my rig the other week with a p5q-deluxe as the previous mobo was starting to fail. now haven't been home much recently due to work. friday night booted up and noticed that neither intake or extract fans were going (more the intake as it's an led fan) but the fan on the cpu was fine.

    so gave the extract a little spin up with a finger and it started to go and the led intake fan kicked in to. now if i do a reboot the same happens.

    now the only things i can come up with are.

    a. that both fans are getting a bit worn, although i can't believe that it's both of them 1 ok but not 2.

    b. there is an issue with the motherboard fan headers. are all fan headers commoned up on a mobo? or are the case fan headers seperate from the cpu fan header, or are they all seperate? main reason i would think of this is that it is both fans that fail to start, and if there was a problem at one header would it replicate on the other? the other thing is that when i spin up the extract fan both of them kick in, but lastnight i noticed that for a few seconds 1/2 of the led's on the intake were flickering (would that to point c. the psu?) but then settle down.


    c. lastly the only other thing is the psu, i don't thinks so but not sure. it's an ocz evo720, and all thats plugged in is the 24pin mobo/8pin cpu/ 6pin gfx and 2 sata ppower for 2xhdd and dvd.


    any way to conclusively prove what it might be without having to use any spares - which i don't have at the moment. really don't want it to be either the mobo which is only a month old or the psu which is quite a bit older but still fine. if it's the fans - then fine i can grab a couple of them no probs.

  2. #2
    DILLIGAF GoNz0's Avatar
    Join Date
    Jun 2006
    Location
    Derby
    Posts
    10,866
    Thanks
    632
    Thanked
    1,190 times in 943 posts
    • GoNz0's system
      • Motherboard:
      • Asus Rampage V Extreme
      • CPU:
      • i7 something X99 based
      • Memory:
      • 16gb GSkill
      • Storage:
      • 4 SSD's + WD Red
      • Graphics card(s):
      • GTX980 Strix WC
      • PSU:
      • Enermax Galaxy 1250 (9 years and counting)
      • Case:
      • Corsair 900D
      • Operating System:
      • win10 64bit
      • Monitor(s):
      • Dell 24"
      • Internet:
      • 220mb Cable

    Re: Fans,Headers or PSU

    i would check the fan headers are kicking out 12v with a multimeter if possible, or try the cpu fan on those headers ?

  3. Received thanks from:

    SuicidaL (10-05-2009)

  4. #3
    Senior Member
    Join Date
    Jan 2009
    Location
    London
    Posts
    350
    Thanks
    6
    Thanked
    48 times in 42 posts
    • sadbuttrue's system
      • Motherboard:
      • Gigabyte P55 UD5
      • CPU:
      • i5 750 @ 3.8ghz + Megahalems + GT1450 @ 5v
      • Memory:
      • G.Skill ECO 4GB 1.4v
      • Storage:
      • Intel 320 120gb + Samsung F4 2tb in Scythe Quiet Drive
      • Graphics card(s):
      • 6950 @ 940/1350/1.175v + Shaman @ 20%
      • PSU:
      • Corsair AX750
      • Case:
      • Raven RV02 with 3xPhobya G-Silent Fans @ 210rpm + Scythe S-Flex 1200 @ 5v
      • Operating System:
      • Windows 7
      • Monitor(s):
      • Samsung 2233rz, Dell 2209wa, Panasonic AX200 Projector
      • Internet:
      • BeThere 24mb

    Re: Fans,Headers or PSU

    Try disabling/changing Q-Fan or whatever the fan control settings are in bios. Your fans probably can't run at the low voltage being given.

  5. Received thanks from:

    SuicidaL (10-05-2009)

  6. #4
    Gentoo Ricer
    Join Date
    Jan 2005
    Location
    Galway
    Posts
    11,034
    Thanks
    1,013
    Thanked
    944 times in 704 posts
    • aidanjt's system
      • Motherboard:
      • Asus Strix Z370-G
      • CPU:
      • Intel i7-8700K
      • Memory:
      • 2x8GB Corsiar LPX 3000C15
      • Storage:
      • 500GB Samsung 960 EVO
      • Graphics card(s):
      • EVGA GTX 970 SC ACX 2.0
      • PSU:
      • EVGA G3 750W
      • Case:
      • Fractal Design Define C Mini
      • Operating System:
      • Windows 10 Pro
      • Monitor(s):
      • Asus MG279Q
      • Internet:
      • 240mbps Virgin Cable

    Re: Fans,Headers or PSU

    It's probably Q-fan undervolting the fans. Is the system actually overheating? Or are you just concerned about a possible fault/anomaly? Take a peak in the BIOS settings in any event.
    Quote Originally Posted by Agent View Post
    ...every time Creative bring out a new card range their advertising makes it sound like they have discovered a way to insert a thousand Chuck Norris super dwarfs in your ears...

  7. Received thanks from:

    SuicidaL (10-05-2009)

  8. #5
    Senior Member
    Join Date
    Aug 2006
    Location
    Money Grabbing Overtime Whore
    Posts
    545
    Thanks
    44
    Thanked
    25 times in 22 posts
    • SuicidaL's system
      • Motherboard:
      • Asus Rampage Formula X48
      • CPU:
      • Q9450 + Heatkiller 3.0LT custom loop
      • Memory:
      • 4Gb Corsair Dominator 8500
      • Storage:
      • 2x 1Tb Samsung F1's, 320Gb Samsung F1, 250Gb Samsung Spinpoint
      • Graphics card(s):
      • MSI 6870 ref + EK FC6870 custom loop
      • PSU:
      • Silverstone Strider Plus 750w
      • Case:
      • Coolermaster HAF-932
      • Operating System:
      • Win7 Pro
      • Monitor(s):
      • 22" Iiyama E2209HDS
      • Internet:
      • VM 50meg

    Re: Fans,Headers or PSU

    Quote Originally Posted by GoNz0 View Post
    i would check the fan headers are kicking out 12v with a multimeter if possible, or try the cpu fan on those headers ?
    will do, found a molex > header converter with bare ends so will use that to adapt to my meter.

    Quote Originally Posted by sadbuttrue View Post
    Try disabling/changing Q-Fan or whatever the fan control settings are in bios. Your fans probably can't run at the low voltage being given.
    hadn't thought of that, will check when i check the voltage.

    Quote Originally Posted by aidanjt View Post
    It's probably Q-fan undervolting the fans. Is the system actually overheating? Or are you just concerned about a possible fault/anomaly? Take a peak in the BIOS settings in any event.
    it's not overheating at the moment as i hadn't put the side back on , will check bios settings but don't seem to remember the fans not operating when i first rebuilt it. so want to check to see if it isn't a problem with the headers. as i said i can't see it being both fans gone at the same time.





    edit.

    just checked voltage with the fans running and was getting 12.2v, the bios was reporting 12.29v so with my meter set on 1 decimal place and not 2 i would say that it was pretty accurate. just done a shutdown and reboot and the fans started no probs, so will have to try later after the pc has been off for a while.

    checked the q-fan settings and it's already disabled on the cpu and chassis fans.


    anything further i can check?
    Last edited by SuicidaL; 10-05-2009 at 12:53 PM.

  9. #6
    Gentoo Ricer
    Join Date
    Jan 2005
    Location
    Galway
    Posts
    11,034
    Thanks
    1,013
    Thanked
    944 times in 704 posts
    • aidanjt's system
      • Motherboard:
      • Asus Strix Z370-G
      • CPU:
      • Intel i7-8700K
      • Memory:
      • 2x8GB Corsiar LPX 3000C15
      • Storage:
      • 500GB Samsung 960 EVO
      • Graphics card(s):
      • EVGA GTX 970 SC ACX 2.0
      • PSU:
      • EVGA G3 750W
      • Case:
      • Fractal Design Define C Mini
      • Operating System:
      • Windows 10 Pro
      • Monitor(s):
      • Asus MG279Q
      • Internet:
      • 240mbps Virgin Cable

    Re: Fans,Headers or PSU

    If you deliver 12v directly to the fans from the PSU and they still don't spin up, then it's a case of a pair of faulty fans. As unlikely as it seems, that's the logical conclusion. For whatever reason, the fans aren't getting enough current to kick start their motors.
    Quote Originally Posted by Agent View Post
    ...every time Creative bring out a new card range their advertising makes it sound like they have discovered a way to insert a thousand Chuck Norris super dwarfs in your ears...

  10. #7
    Senior Member
    Join Date
    Aug 2006
    Location
    Money Grabbing Overtime Whore
    Posts
    545
    Thanks
    44
    Thanked
    25 times in 22 posts
    • SuicidaL's system
      • Motherboard:
      • Asus Rampage Formula X48
      • CPU:
      • Q9450 + Heatkiller 3.0LT custom loop
      • Memory:
      • 4Gb Corsair Dominator 8500
      • Storage:
      • 2x 1Tb Samsung F1's, 320Gb Samsung F1, 250Gb Samsung Spinpoint
      • Graphics card(s):
      • MSI 6870 ref + EK FC6870 custom loop
      • PSU:
      • Silverstone Strider Plus 750w
      • Case:
      • Coolermaster HAF-932
      • Operating System:
      • Win7 Pro
      • Monitor(s):
      • 22" Iiyama E2209HDS
      • Internet:
      • VM 50meg

    Re: Fans,Headers or PSU

    Quote Originally Posted by aidanjt View Post
    If you deliver 12v directly to the fans from the PSU and they still don't spin up, then it's a case of a pair of faulty fans. As unlikely as it seems, that's the logical conclusion. For whatever reason, the fans aren't getting enough current to kick start their motors.

    well going to pick up a couple of fans later just to eliminate/prove them. is the 12v for the fan headers not regulated by the mobo or does it get routed direct via the 24pin?

  11. #8
    Gentoo Ricer
    Join Date
    Jan 2005
    Location
    Galway
    Posts
    11,034
    Thanks
    1,013
    Thanked
    944 times in 704 posts
    • aidanjt's system
      • Motherboard:
      • Asus Strix Z370-G
      • CPU:
      • Intel i7-8700K
      • Memory:
      • 2x8GB Corsiar LPX 3000C15
      • Storage:
      • 500GB Samsung 960 EVO
      • Graphics card(s):
      • EVGA GTX 970 SC ACX 2.0
      • PSU:
      • EVGA G3 750W
      • Case:
      • Fractal Design Define C Mini
      • Operating System:
      • Windows 10 Pro
      • Monitor(s):
      • Asus MG279Q
      • Internet:
      • 240mbps Virgin Cable

    Re: Fans,Headers or PSU

    Yeah, the motherboards power regulation circuits provide the fans power from the 24pin ATX connector. 3pin fans should be fine. Akasa fans almost always provide 3-pin to 4-pin molex connectors, which adds a bit of flexibility.
    Quote Originally Posted by Agent View Post
    ...every time Creative bring out a new card range their advertising makes it sound like they have discovered a way to insert a thousand Chuck Norris super dwarfs in your ears...

  12. #9
    Senior Member
    Join Date
    Aug 2006
    Location
    Money Grabbing Overtime Whore
    Posts
    545
    Thanks
    44
    Thanked
    25 times in 22 posts
    • SuicidaL's system
      • Motherboard:
      • Asus Rampage Formula X48
      • CPU:
      • Q9450 + Heatkiller 3.0LT custom loop
      • Memory:
      • 4Gb Corsair Dominator 8500
      • Storage:
      • 2x 1Tb Samsung F1's, 320Gb Samsung F1, 250Gb Samsung Spinpoint
      • Graphics card(s):
      • MSI 6870 ref + EK FC6870 custom loop
      • PSU:
      • Silverstone Strider Plus 750w
      • Case:
      • Coolermaster HAF-932
      • Operating System:
      • Win7 Pro
      • Monitor(s):
      • 22" Iiyama E2209HDS
      • Internet:
      • VM 50meg

    Re: Fans,Headers or PSU

    well i never managed to get any fans earlier, i broke my rule of not goin to pc ****eworld to get a couple of akasa fans but they didn't have any except some crappy jeantech ones.

    so brought a fish tank for my little 'un instead........who needs a bank to rob them when u got a wife and kid(s)


    so will try again tomorrow.......................if i get away from cumnock in time.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Spare PSU for gaming rig?
    By philpem in forum PC Hardware and Components
    Replies: 3
    Last Post: 30-09-2008, 02:10 PM
  2. Dodgy? Antec PSU
    By ChrisC418 in forum SCAN.care@HEXUS
    Replies: 4
    Last Post: 13-09-2008, 07:27 AM
  3. How big a PSU and why a Corsair one?
    By carbon8ed in forum Cases
    Replies: 23
    Last Post: 11-12-2007, 07:52 PM
  4. Help ! My PC died suddenly. Could be the PSU, I guess.
    By rmaciag in forum Help! Quick Relief From Tech Headaches
    Replies: 16
    Last Post: 29-05-2007, 04:04 PM
  5. Silverstone 0dB Fanless PSU
    By Carvahlo in forum Reader Reviews
    Replies: 6
    Last Post: 21-10-2004, 09:12 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •