Results 1 to 16 of 16
  1. #1

    CORSAIR 850AX PSU Fan not moving?

    Hi the technicans helped me install a corsair 850AX PSU on my HAF 922 with the fan point upwards ( was told and seen that it do not fit fan downwards on the case )

    The fan will spin while starting windows but it stopped around 3 secs later.

    I was told that the PSU is a special design and will only spin when it gets hot. But i touched the PSU and its cold around 29 Celsius

  2. #2
    Member

    capttripppp's Avatar
    Join Date
    Apr 2011
    Location
    Anchorage, Alaska
    Benching Profile Folding Profile Heatware Profile
    If it's cold then you shouldn't worry about it, at least if you were told that the fan is triggered by heat. You should have no worries, Quote from Corsair site on your PSU
    The Corsair AX850's energy-efficient design allows it to operate reliably with minimal cooling, and hence very low noise levels. The AX850's Hybrid Silent Fan Control technology offers three modes of cooling, depending on the load level. This includes a fanless mode of operation (0 rpm) up to about 20% load, a quiet, low fan speed cooling mode for typical loads up to around 50% load, and a higher performance cooling mode for more demanding loads. Noise levels still remain low even when fan speeds start to climb, thanks to the use of a premium-quality 120mm San Ace fan from industry-leader, Sanyo Denki.
    "I just picked up some Vaseline and a big syringe. I'm thinking using the syringe will make it easier to put the Vaseline in all the little hard to reach spots. I'm hoping to get to mess with it tonight, if so I'll post some videos" Convicted1

  3. #3
    Forums Super Moderator
    Overclockers.com Lead Editor


    David's Avatar
    10 Year Badge
    Join Date
    Feb 2001
    Location
    Hiding from Americans and making pretty colours in a drybox in St Andrews
    Author Profile Benching Profile Folding Profile
    Fans are very often set to run only when the heat in the case requires it ...

    Is there a second fan on the PSU?
    David J. Nelson MChem(Edin) PhD(Strath) MRSC [ResearcherID: D-3927-2011]
    OC Forums Super Moderator // Overclockers.com Editor


    The Workhorse: [Lenovo W510] Intel Core i7-720QM / 8 GB DDR3 / nVidia Quadro FX880M / Crucial M4 256 GB SSD / Windows 7
    The HTPC/Server: AMD Phenom X4 9650 / 6 GB DDR2 / nVidia 8300 / 5 TB of HDDs / Antec Solo II Case / Windows 7
    The Gaming Rig: AMD Llano A6-3650 / 4 GB DDR3 / nVidia GTX260 / 2x 500 GB HDD in RAID0 / Antec Dark Fleet DF-85 Case / Windows 7
    The Benchmarking Setup: Various LGA775 chips / Asus Rampage Formula / 2 GB OCZ 1066 MHz DDR2 / nVidia Quadro NVS 285 / 320 GB HDD / Windows 7

    My research fellowship is eating all my time, so I may be slow to reply to emails and private messages.

  4. #4

    Destroyer of Spammers, Trolls and Cretins

    Premium Member #12
    RollingThunder's Avatar
    Join Date
    Jan 2005
    Quote Originally Posted by aya90 View Post
    Hi the technicans helped me install a corsair 850AX PSU on my HAF 922 with the fan point upwards ( was told and seen that it do not fit fan downwards on the case )

    The fan will spin while starting windows but it stopped around 3 secs later.

    I was told that the PSU is a special design and will only spin when it gets hot. But i touched the PSU and its cold around 29 Celsius
    What "technicians?"

    The power supply is bottom mounted. It can be mounted with the fan up or down. The fan should face down. If you drop anything into the upward facing fan opening, you have a problem. You also lose some usefull length that the cables can reach with the fan facing up because the cables are then oriented to the outer edge of the power supply.
    Intel E8500 @ 3608 MHz...............Intel E7500 @ 3333 MHz Home Server
    DFI DK P45 T2RS Plus.................Same
    WD Velociraptor 150 & WD Raptor 74...Raptor 74 - Hitachi Deskstar 1TB
    ATI 5750.............................ATI 6200FX
    Dell Ultra Sharp U2413.............. Dell Ultra Sharp 2209WA
    2 x 2 GB GSkill PC8500 @ DDR2 960....2 x 1 GB GSkill PC8500
    Corsair HX520........................Corsair HX520
    Coolermaster NV 690..................Lian-Li PC-K7
    Vista 64.............................XP Pro
    Experience teaches only the teachable.

  5. #5
    Quote Originally Posted by RollingThunder View Post
    What "technicians?"

    The power supply is bottom mounted. It can be mounted with the fan up or down. The fan should face down. If you drop anything into the upward facing fan opening, you have a problem. You also lose some usefull length that the cables can reach with the fan facing up because the cables are then oriented to the outer edge of the power supply.

    That is what i told them and he told me that if facing downwards cant fit in

  6. #6
    Also he gave me links to prove that most people did the same thing

    http://imageshack.us/photo/my-images...041zx.jpg/sr=1

    But i saw people having the same case as mine did the fan downwards... maybe the motherboard is different ?

    i am using z68 v pro

  7. #7
    Some guy in corsair says

    " Cases with bottom mounted PSU's were designed with having the PSU fan down to draw air from outside the case. However, the space between the PSU and the floor/table is only an inch and may impede air flow. If you have the case on the floor, the PSU will act like a vaccum cleaner and suck up the dust, lint, cat hair, dog hair, dust bunnies, etc. All that being said, I mounted my PSU with the fan up.

    Also, with the PSU mounted fan down, there would be some radiated heat into the case. With the PSU mounted fan up, the fan would suck that radiated heat and exhaust it out the case.

    JHMO, but mount the PSU fan up or down "


    Should i try again making it downwards or leave it be

  8. #8
    Researches Meritless
    LIES for the Front
    Page and Super Mutterator

    Overclockers.com Editor
    First Responders

    EarthDog's Avatar
    Join Date
    Dec 2008
    Location
    Stuck in Maryland...
    Author Profile Benching Profile Folding Profile Heatware Profile
    Id leave it be. The fan on that unit is thermally controlled. It will not spin until you put a few hundred watts of load on there for a while.I have the Seasonic X560 with a single 580/2500k and it rarely spins up even while playing a game.

    As far as 'radiated heat' thats going to be negligible. Do not worry about it.

    "We have more information and more ways of accessing it than ever, yet seem increasingly less inclined to do so."- Michael Wilbon

  9. #9
    Thank you , i felt much better

  10. #10
    Mr. Scott Theocnoob's Avatar
    Join Date
    Dec 2007
    Location
    Canada. Eh?
    Even in an antec 300 with 1" of space for the fan to draw air, which is plenty, I bottom mounted. You stick the straw from compressed air in the back every month and all the dust in the PSU comes out anyways.


    It is not a legitimate heat concern or dust concern. The main thing is what if you ever drop a screw in there?



    JM2C but leave yours how it is. I just wanted to comment.
    That PC runs heavy load all day BTW and has been fine since JAN
    Theocnoob's fistula news- all fistula, all the time!
    10/28/14- The fistula is still leaking. Got a call back from the doctor. Still waiting for an MRI appointment and for my appointment with the colorectal surgeon. Apparently if I get any pain I have to go to emergency again. Damn hospitals...

  11. #11
    Hi after watching so many psu reviews about point the fan downwards to the vent holes and preventing things dropping to the fan.

    I took 2 hours and finally made it face downwards and found out theres a clip in the cooler master 922 chassis to lock the psu , i pressured quite hard in order to match the screw holes , is it okay to do that ?

    PLEASE TAKE A LOOK OF MY PICTURES AND TELL ME something
    Attached Images Attached Images          

  12. #12
    THE more detailed
    Attached Images Attached Images    

  13. #13
    hump

  14. #14
    Researches Meritless
    LIES for the Front
    Page and Super Mutterator

    Overclockers.com Editor
    First Responders

    EarthDog's Avatar
    Join Date
    Dec 2008
    Location
    Stuck in Maryland...
    Author Profile Benching Profile Folding Profile Heatware Profile
    No need to bump after an hour in the middle of the road night...

    That said im nit sure what you want to know now. It fits. So enjoy your pc!

  15. #15
    Quote Originally Posted by EarthDog View Post
    No need to bump after an hour in the middle of the road night...

    That said im nit sure what you want to know now. It fits. So enjoy your pc!
    But is it okay if the psu is tight on the vent holes that i screwed

  16. #16
    Researches Meritless
    LIES for the Front
    Page and Super Mutterator

    Overclockers.com Editor
    First Responders

    EarthDog's Avatar
    Join Date
    Dec 2008
    Location
    Stuck in Maryland...
    Author Profile Benching Profile Folding Profile Heatware Profile
    Yes.

Posting Permissions

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