Results 1 to 8 of 8

Thread: Any high wattage Titanium PSU can run passively?

  1. #1
    Join Date
    Jan 2019
    Location
    Hong Kong
    Posts
    3
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default Any high wattage Titanium PSU can run passively?

    I'm looking for a quiet 850W PSU and struggling to make a decision between

    - The new Corsair AX850
    - Seasonic Prime Ultra Titanium 850W
    - EVGA 850 T2 (optional candidate)
    (Not looking for ~600W fanless PSUs)

    I've read the OC3D review of Corsair AX850 that the unit still runs passively after 20 minutes of full load, which is what I want. But the report from Cybenetics shows the fan starts at around 400W load.
    On the other hand Seasonic's fan starts a bit earlier but at lower RPM overall.

    Most of the time I use my PC browsing the web, watching Youtube. Sometimes gaming and video/audio editing/rendering.

    Spec (everything air cooled):
    i7 8700k 4.9GHz @ 1.3v
    Asus Z390-E
    4 x Kingston HyperX Fury 16GB 2666 1.2v
    Nvidia 1080 FE (no OC yet)
    Samsung 970 EVO 500GB, 860 EVO 1TB
    2 x 5.4k SATA 2.5" HDD 2TB
    5 x noctua A12x25
    Fractal Design Define C

    I'm currently using EVGA 850 G3 with ECO mode ON and it's the noisiest component. The PSU fan suddenly ramp up to quickly cool itself down after idling on desktop around 5-10 minutes and then back to passive mode and then ramp up again... repeat and repeat. Even with ECO mode off I still don't want that constant fan hum from the PSU. That's why I'm changing it.

    Thanks

  2. #2
    Join Date
    Mar 2011
    Location
    Germany
    Posts
    396
    Thanks Thanks Given 
    99
    Thanks Thanks Received 
    15
    Thanked in
    6 Posts

    Default

    For the small system you don't need 850W, take the Seasonic Prime Fanless and you don't have to worry about the fan.



    In the OC3D review of Corsair AX850 the fan did not start because the power supply unit was tested outside the case and did not warm up.
    best regards
    Tinpoint

  3. #3
    Join Date
    Jan 2019
    Location
    Hong Kong
    Posts
    3
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    Quote Originally Posted by tinpoint View Post
    For the small system you don't need 850W, take the Seasonic Prime Fanless and you don't have to worry about the fan.



    In the OC3D review of Corsair AX850 the fan did not start because the power supply unit was tested outside the case and did not warm up.
    I've used the PSU calculator and it says my load wattage is round 550W, I afraid I may actually able to reach such wattage while doing rendering. So I afraid the 600W fanless is not an option since I would like to keep some headroom for the PSU.

  4. #4
    Join Date
    Jul 2009
    Location
    Germany
    Posts
    3,499
    Thanks Thanks Given 
    6
    Thanks Thanks Received 
    32
    Thanked in
    29 Posts

    Default

    Quote Originally Posted by boveywong View Post
    I've used the PSU calculator and it says my load wattage is round 550W,
    They are lying to you and overestimating by a mile.
    DO NOT Trust them!
    Because CPU and GPU are the biggest Power consuming things...
    The rest hardly matters...
    Quote Originally Posted by boveywong View Post
    I afraid I may actually able to reach such wattage while doing rendering. So I afraid the 600W fanless is not an option since I would like to keep some headroom for the PSU.
    I doubt it.
    Your System is probably nowhere near 500W...
    And OC for a rendering machine? that is a bad idea s the OC increases the failure rates. And you might not want some problems with the rendering (and do it again), do you??

    Anyway, you might want to get a Powermeter to measure the Power Consumption of your system for various reasons...

    Thing is: 550W G3 would have been somewhat acceptable, the higher wattage are not...

  5. #5
    Join Date
    Oct 2017
    Location
    Grand Junction, CO
    Posts
    1,835
    Thanks Thanks Given 
    96
    Thanks Thanks Received 
    31
    Thanked in
    29 Posts

    Default

    Perhaps another approach is to upgrade your case fans such that the flow through the power supply you have now is increased and eco mode no longer needs to kick in the power supply fan.

  6. #6
    Join Date
    Oct 2006
    Location
    jonnyGURU forums, of course!
    Posts
    15,817
    Thanks Thanks Given 
    521
    Thanks Thanks Received 
    169
    Thanked in
    122 Posts

    Default

    Quote Originally Posted by boveywong View Post
    I've read the OC3D review of Corsair AX850 that the unit still runs passively after 20 minutes of full load, which is what I want. But the report from Cybenetics shows the fan starts at around 400W load.
    Because OC3D tests at room temperature and Cybenetics tests at 30 to 32°C.

  7. #7
    Join Date
    Sep 2010
    Location
    New Jersey, USA
    Posts
    1,303
    Thanks Thanks Given 
    884
    Thanks Thanks Received 
    11
    Thanked in
    10 Posts

    Default

    I used to run my i7 8700K with all 6 cores at 5.0 GHz, Vcore=1.37. PSU was a 460w Seasonic Gold fanless. Admittedly there was no dGPU involved, but an OC'd 8700K had no problems with 460W. You should have no problem adding a GPU if your PSU is 600W.
    CPU: Core i7 8700k, HT enabled, all 6 cores OC'd to 4.8GHz, Vcore = 1.24v
    Heatsink: Noctua NH-D15 with one NF-A15 1500 RPM PWM fan
    Motherboard: Gigabyte Z370X Aorus Gaming 7
    RAM: 4x16GB (64GB) Corsair Vengeance LPX DDR4 RAM 16-18-18-36@3200MHz, Vdimm = 1.35v
    GPU: MSI GeForce GTX 1080 DirectX 12 with 8GB 256-Bit GDDR5X
    SSD1: Samsung 840 EVO 500GB TLC; SSD2: SAMSUNG 860 EVO 1TB 3-bit MLC
    HD: WD 500GB (old); Case: LIAN LI PC-7H Aluminum ATX Mid Tower
    PSU: Seasonic Platinum 660W

  8. #8
    Join Date
    Jan 2019
    Location
    Hong Kong
    Posts
    3
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Default

    Thanks everyone's comments! I think I'll go with Seasonic 600W fanless then, but the price went up last night on newegg so I'll just wait.

    Hope in the foreseeable future I will not need a 2080ti or additional GPU for rendering though.

Similar Threads

  1. Importance of protections in high wattage PSU
    By ears_ears in forum PC Power Supply Discussion
    Replies: 3
    Last Post: 01-11-2019, 11:38 PM
  2. SilverStone Intros the Strider Titanium Line of High-Wattage PSUs
    By -The_Mask- in forum PC Power Supply Discussion
    Replies: 5
    Last Post: 06-23-2017, 10:17 AM
  3. Where are the low-wattage Platinum/Titanium PSUs?
    By The_Assimilator in forum PC Power Supply Discussion
    Replies: 18
    Last Post: 11-10-2016, 11:07 AM
  4. High-Quality, Low-Wattage PSUs
    By TaroTsujimoto in forum PC Power Supply Discussion
    Replies: 30
    Last Post: 08-12-2015, 07:08 PM
  5. High wattage platinum psu
    By him28 in forum PC Power Supply Discussion
    Replies: 23
    Last Post: 07-02-2012, 01:20 PM

Posting Permissions

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