Which DDR5 RAM works best with P07-660 for high capacity upgrades?

Chris_Z
Chris_Z Member Posts: 4 New User
edited April 13 in Predator Desktops

Hi,

PO7-660 was delivered with 64 GB composed of 2 * 32GB 2Rx8 PC5-6000-UB0-1211-XT DDR5 UDIMM from ADATA.

Which memory is most compatible with it (i.e. causing the least performance loss), when upgrading to 128 GB or more?

Where can I find a qualified vendor list for RAM uppgrades?

Best regards,

Best Answer

  • StevenGen
    StevenGen ACE Posts: 13,830 Trailblazer
    edited April 14 Answer ✓

    The Predator PO7-660 Intel cpu specification which is a good guide to the type and amount of ram suitable for the PO7-660 is like its shown below. The PO7-660 has the Intel Core i9 285K LGA 3.7 GHz 40M 125W Arrow Lake-S 99C cpu, I also suggest that you install the latest bios version if you want to upgrade the PO7-660 desktop to above 64GB max total that Acer guide suggests, as these desktops can also be upgrade to 128GB max ram and beyond comfortably with the new DDr5 ram.

    I know this as with the laptop model Predator Helios Neo PHN16-71 model their i5, i7 and i9 cpu's model laptops have a max Intel cpu memory spec of 128GB and one community member has updated his i9-13900HX cpu laptop to 96GB memory and it works perfectly, see here for that post, as these DDR5 laptop and desktops are very flexible with ram and what their cpu's max memory capacities are listed at. Good luck and hope this helps you out further.

    Intel® Core™ Ultra 9 Processor 285K 36M Cache, up to 5.70 GHz

    • Max Memory Size (dependent on memory type) 256 GB
    • Memory Types Up to DDR5 6400 MT/s
    • Maximum Memory Speed: 6400 MHz

    This is the Acer recommended memory ram modules for the PO7-660 desktop

    If this answers your question and solved your query please "Click on Yes" or "Click on Like" if you find my answer useful👍

Answers

  • Puraw
    Puraw ACE, Member Posts: 16,234 Trailblazer
    edited April 13

    What CPU does it have? Only the Intel Core i9-13900K or newer processors in the Raptor Lake series are capable of supporting 128GB of DDR5 RAM. https://global-download.acer.com/GDFiles/Document/Lifecycle%20Ext.%20Guide/Lifecycle%20Ext.%20Guide_Acer_1.0_A_A.pdf?acerid=638713933559606242&Step1=&Step2=&Step3=PREDATOR%20PO7-660&OS=ALL&LC=en&BC=ACER&SC=PA_6 This Acer manual states Intel Core Ultra 9 285K CPU that supports a maximum of 192GB of DDR5 RAM. This capacity can be achieved using configurations like 4 x 48GB RAM sticks.

  • Axxo
    Axxo Member, Ally Posts: 1,511

    This model is compatible with more than one type of memory.
    CORSAIR VENGEANCE LPX DDR4 2666MHz DIMM.
    CORSAIR VENGEANCE LPX DDR4 3200MHz DIMM.
    CORSAIR VENGEANCE RGB RS DDR4 3200MHz DIMM.
    Crucial Pro DDR4 3200MHz DIMM.
    Kingston FURY Renegade DDR4 3200MHz DIMM.
    DDR4 2666MHz DIMM.
    Kingston FURY Beast DDR4 3200MHz DIMM.

    —————————————

    If this answers your question and solved your query please "Click on Yes" or "Click on Like" if you find my answer useful.

  • Chris_Z
    Chris_Z Member Posts: 4 New User

    "This Acer manual states Intel Core Ultra 9 285K CPU that supports a maximum of 192GB of DDR5 RAM. This capacity can be achieved using configurations like 4 x 48GB RAM sticks."

    Yes, this is the one, Arrow Lake Core Ultra 9 / Z890.

    Memory modules listed in the 'Lifecycle Extension Guide' are OEM for Acer and are not available on the free market (no one in Sweden have them for sale). If they were, I wouldn't need to ask for help ;)

    Mine has factory installed: 2 * 32GB 2Rx8 PC5-6000-UB0-1211-XT DDR5 UDIMM from ADATA,

    CPU-Z reports: DDR5-6000, A-Data Technology, SK Hynix, P/N AO2Y60UCTV2-BIOS.

    The User's Guide know nothing about more than 4 * 32 GB, but if I understood you correctly, I can add 2 * 48 GB and have a total of 160 GB, right?

    Isn't it so, that with 4 sticks present the MB will adjust to the slowest pair?

    So the only thing I need to know which ones will make the least 'damage' performancewise, ideally manufacturer part numbers. Every MB in universe have a QVL, but Acer doesn't?

    I hope this isn't a state secret 😉

  • Chris_Z
    Chris_Z Member Posts: 4 New User

    I am afraid it is none of those…

    It is DDR5 only.

  • StevenGen
    StevenGen ACE Posts: 13,830 Trailblazer
    edited April 14 Answer ✓

    The Predator PO7-660 Intel cpu specification which is a good guide to the type and amount of ram suitable for the PO7-660 is like its shown below. The PO7-660 has the Intel Core i9 285K LGA 3.7 GHz 40M 125W Arrow Lake-S 99C cpu, I also suggest that you install the latest bios version if you want to upgrade the PO7-660 desktop to above 64GB max total that Acer guide suggests, as these desktops can also be upgrade to 128GB max ram and beyond comfortably with the new DDr5 ram.

    I know this as with the laptop model Predator Helios Neo PHN16-71 model their i5, i7 and i9 cpu's model laptops have a max Intel cpu memory spec of 128GB and one community member has updated his i9-13900HX cpu laptop to 96GB memory and it works perfectly, see here for that post, as these DDR5 laptop and desktops are very flexible with ram and what their cpu's max memory capacities are listed at. Good luck and hope this helps you out further.

    Intel® Core™ Ultra 9 Processor 285K 36M Cache, up to 5.70 GHz

    • Max Memory Size (dependent on memory type) 256 GB
    • Memory Types Up to DDR5 6400 MT/s
    • Maximum Memory Speed: 6400 MHz

    This is the Acer recommended memory ram modules for the PO7-660 desktop

    If this answers your question and solved your query please "Click on Yes" or "Click on Like" if you find my answer useful👍

  • Chris_Z
    Chris_Z Member Posts: 4 New User
    edited April 15

    I went with your advice and with "Inserting more than 3 DDR will slow down the speed to 4400MHz or higher." (from Users Manual) in mind opted for a Crucial Pro RAM 96GB Kit (2x48GB) DDR5 5600MHz, Intel XMP 3.0 - CP2K48G56C46U5.

    Zero problems upgrading.

    The speed went down with 3 modules (greying out XMP), and then stayed the same with 4.

    Before:

    After: