Predator PO3-655 cooling upgrade - clarifications on Noctua NH-U9S, RAM and Thermal paste

pookyzero
pookyzero Member Posts: 2 New User
edited January 23 in Predator Desktops

Hi all. New to the PC scene, recently got the PO3-655 with the 4070 super / i7-14700F. Have discovered the wonderful high CPU temp issue people seem to have with these. Surfed the forums a bit and looking to replace the stock cooler. Could someone please confirm my below Qs?

  • Understand this is the correct / recommended cooler to fit this model: Noctua NH-U9S chromax.black, 92mm Single-Tower CPU Cooler (Black) : Amazon.co.uk: Computers & Accessories
    • I read people mentioning an optional second fan? Not sure I understand this concept if someone could clarify, and is it worth it really or no need?
  • Simple install / no need to remove anything other than the stock cooler? Just need 4x M3x10 screws to install the included Nocta bracket + thermal paste?
    • Is there a recommended thermal paste for install? Best way to clean off any residual paste from stock?
  • While I'm in there for the install might as well fill up the 2 empty RAM slots - is there a go-to RAM people like to use on this model someone could recommend?

Apologies for the lengthy post, many thanks in advance for your guys' help! :)

[Edited the thread to add issue detail to the title]

Best Answer

  • billsey
    billsey ACE Posts: 35,096 Trailblazer
    Answer ✓

    The second fan mounts on the cooler on the opposite side from the one fan that comes with. It doesn't really change the airflow much, since both fans will spin at the same speed and they are driven off the MB with a splitter. You won't use the Noctua back plate, you use the stock backplate with the new screws to hold it in place. The big change from the PO3-650 to PO3-655 was the bump in memory speed, from 4700 to 5600. This is what Acer shipped with them:

    You should be able to use any of the DDR5 5600 modules, faster will still run at the system speed, so don't spend extra.

    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.

Answers

  • billsey
    billsey ACE Posts: 35,096 Trailblazer
    Answer ✓

    The second fan mounts on the cooler on the opposite side from the one fan that comes with. It doesn't really change the airflow much, since both fans will spin at the same speed and they are driven off the MB with a splitter. You won't use the Noctua back plate, you use the stock backplate with the new screws to hold it in place. The big change from the PO3-650 to PO3-655 was the bump in memory speed, from 4700 to 5600. This is what Acer shipped with them:

    You should be able to use any of the DDR5 5600 modules, faster will still run at the system speed, so don't spend extra.

    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • pookyzero
    pookyzero Member Posts: 2 New User

    Thanks alot for the clarification. Did the install today and all is good, nearly 20 degree difference in CPU temp!

  • billsey
    billsey ACE Posts: 35,096 Trailblazer

    Yes, that's is pretty much the same results as most every9one else gets. Congrats on the upgrade!

    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.