Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: SSR-750FX fan question

  1. #1
    Join Date
    Jan 2020
    Location
    Europe
    Posts
    3
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default SSR-750FX fan question

    Hey guys...
    I 'm running a Seasonic SSR-750FX + 8700k OC + RTX 2070 and up until now i've had the PSU fan running all the time.
    I recently wanted to test out the hybrid cooling mode so i turned the fan switch off and i started stressing my system.
    I measured 330-350 watts from the wall while running Prime32+Furmark for 30mins and the PSU fan didn't spin the whole time.
    I eventually turned on the fan switch and the air coming out of the PSU was quite hot.
    Should i RMA, is it faulty?

  2. #2
    Join Date
    Jun 2010
    Location
    The Netherlands
    Posts
    5,474
    Thanks Thanks Given 
    385
    Thanks Thanks Received 
    145
    Thanked in
    112 Posts

    Default

    It's normal.

  3. #3
    Join Date
    Aug 2014
    Location
    Poland
    Posts
    1,022
    Thanks Thanks Given 
    343
    Thanks Thanks Received 
    41
    Thanked in
    26 Posts

    Default

    I don't see anything wrong there either.

  4. #4
    Join Date
    Jan 2020
    Location
    Europe
    Posts
    3
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    but on the Seasonic site it says the fan will start at 30% load which is 225 watts and i tested at 330 watts.
    Last edited by haxzion; 3 Weeks Ago at 10:00 AM.

  5. #5
    Join Date
    Jun 2010
    Location
    The Netherlands
    Posts
    5,474
    Thanks Thanks Given 
    385
    Thanks Thanks Received 
    145
    Thanked in
    112 Posts

    Default

    That's called marketing. Most of the time it has nothing to do with reality.

  6. #6
    Join Date
    Jan 2020
    Location
    Europe
    Posts
    3
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    I couldn't rest my mind so i got from a friend a rtx 2060 and i run a luxmark openCL stress test on both gpus (RTX 2070 + 2060) plus prime95 on the cpu.
    470watts from the wall and i had to wait 5 mins for the PSU fan to start spinning automatically.
    I guess the psu works just fine. Cheers

  7. #7
    Join Date
    Oct 2006
    Location
    jonnyGURU forums, of course!
    Posts
    16,377
    Thanks Thanks Given 
    545
    Thanks Thanks Received 
    361
    Thanked in
    265 Posts

    Default

    Quote Originally Posted by haxzion View Post
    but on the Seasonic site it says the fan will start at 30% load which is 225 watts and i tested at 330 watts.
    The Seasonic fan is thermostatically controlled. Not controlled by load.

    So even if you're > 225W, if the temps are low, the fan still will not spin.

  8. #8
    Join Date
    Oct 2017
    Location
    Grand Junction, CO
    Posts
    2,179
    Thanks Thanks Given 
    125
    Thanks Thanks Received 
    72
    Thanked in
    65 Posts

    Default

    I imagine that if the PC case itself pulled (or pushed) enough air through the power supply, the supply fan might not come on at all.

  9. #9
    Join Date
    Aug 2018
    Location
    Korea
    Posts
    344
    Thanks Thanks Given 
    161
    Thanks Thanks Received 
    29
    Thanked in
    19 Posts

    Default

    Focus and Prime are both only thermal controlled?

  10. #10
    Join Date
    Oct 2006
    Location
    jonnyGURU forums, of course!
    Posts
    16,377
    Thanks Thanks Given 
    545
    Thanks Thanks Received 
    361
    Thanked in
    265 Posts

    Default

    Quote Originally Posted by rgbodosk View Post
    Focus and Prime are both only thermal controlled?
    Correct.

  11. The Following User Says Thank You to Jon Gerow For This Useful Post:

    rgbodosk (3 Weeks Ago)

Posting Permissions

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