XMP Support for Predator Orion 5000 PO5-655-UB22, getting constant alarm

gilp456
gilp456 Member Posts: 7

Tinkerer

edited February 23 in Predator Desktops

I attempted to enable XMP on my Orion 5000 PO5-655-UB22 and there is a constant alarm, presumably for failing to load the memory profile?

Without having to take the system apart to access the CMOS battery, is there a way to reset BIOS?

Also, I am using JEDEC approved DDR5 Dimms 6400 @ 1.1V. I expected everything to work straight away. I have tried two sets of XMP dimms at 6000 and 6400 but all fail with the alarm during post.

Any plans from Acer to update the bios so that it either auto recovers when the memory fails to train or enable more profiles?

[Edited the thread to add issue detail]

Answers

  • StevenGen
    StevenGen ACE Posts: 13,692 Trailblazer
    edited February 23

    The JEDEC DDR5-6400MT/s DiIMMs @ 1.1V that you bought is probably not a compatible CL ram for the PO5-655 desktop and its NOT an approved ram that Acer has set the Intel H770 chipset mobo to. The PO5-655 > XMP bios @ Enables settings is only for the DDR5-4800MT/s CL40 or the DDR-5600MT/s CL46 speed type ram, so that it gets overclocked to whatever Acer set the XMP ram max speed to, if you use the higher ram DDR5-6000 or the 6400MT/s speeds the XMP should be turned to Disabled, as this mobo ram will operate at whatever Acer has set the bios for the ram.

    Extreme Memory Profile ( X.M.P.) - (Disabled) This item enables or disables Extreme Memory Profile (X.M.P.)

    Use the Crucial recommended ram speed guide, as their ram speed recommendations work for the Acer Predator Orion 5000 PO5-655, they also recommend twice the ram max capacity of 128GB ram at the ram speeds and other capacities below:

    For 128GB max total ram Crucial recommend the following into the PO5-655s 4x ram slots:

    • Crucial Pro - 4x 32GB - DDR5-5600 • CL=46 • Non-ECC • UDIMM • 288-pins • 1.1V • 1Rx8 • PC5-44800
    • Crucial Pro - 2x 64GB - DDR5-6000 • CL=40 • Non-ECC • UDIMM • 288-pins • 1.35V • 1Rx8 • PC5-48000
    • Crucial Pro - 4x 32GB - DDR5-6400 • CL=36 • Non-ECC • UDIMM • 288-pins • 1.35V • 1Rx8 • PC5-48000

    Note: Make sure that you have the last bios version 1.05 installed as this bios updates the "INTEL Microcode 0x12B update for the Intel 13th and 14th Generation CPU issue" and also the ram compatibility from DDR5-4400MT/s to DDR5-5600MT/s and above with overclocking at bios. Good luck and hope this helps you out further and solves the overclocking issue.

    PO5-655 memory specs and Acer oem recommended modules

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

  • gilp456
    gilp456 Member Posts: 7

    Tinkerer

    edited February 23

    thanks for the reply, but the answer doesn’t really make sense because the XMP timings are programmed into the ram module, and the motherboard just reads the settings and applies them. The system claims to support XMP but I have not found a single combination of XMP RAM that work.

    Also, where did you get this recommendation from? I searched for a service manual and in the product documentation, but did not see any specific recommendations?

    Is there anything else in the service manual about how to reset the bios without taking the system components apart to access the CMOS battery? From what I could tell on the motherboard, Acer has the header where I should be able to clear and reset the bios. if at any time, the user enables XMP on this system, it appears to just cause a hang during POST and triggers the alarm.

  • gilp456
    gilp456 Member Posts: 7

    Tinkerer

    Also, I do have the latest 1.05 BIOS installed.

  • gilp456
    gilp456 Member Posts: 7

    Tinkerer

    I confirmed the system was preinstalled with DDR5 5600 modules, but XMP option is greyed out with the installed modules. I will open a separate support ticket for this issue, as I do not believe the system is behaving as designed. If others find this message, beware that if you purchase this system and expect to be able to change the memory out, you will most likely not be able to do so.

  • StevenGen
    StevenGen ACE Posts: 13,692 Trailblazer

    My answer does make sense as your PO5-655 ram is determined by the Intel designed 14th Gen max ram speed and the bios that Acer has for the PO5-655 to allow higher ram speeds, as the initial PO5-655 desktops suggested ram speed was DDR5-4400MT/s specified by Acer because of the PO5-655 bios that Acer had.

    Official Intel Intel® Core™ i5 processor 14400 and Core™ i7 processor 14700 cpu Memory Specifications

    1. Max Memory Size (dependent on memory type) - 192 GB
    2. Memory Types by CPU: i5-14400 cpu: max DDR5 4800 MT/s / i7-14700 cpu - max DDR5-5600MT/s
    3. Max # of Memory Channels 2
    4. Max Memory Bandwidth - i5-14500: 76.8 GB/s / i7-14700: 89.6 GB/s

    All the ram specs tables above are from the official Acer PO5-655 service guide which you don’t have access to as only Ace ranked Acer community member have access.

    • The XMP setting in bios is greyed out because you are using the max ram that the mobo can work with. If you had DDR5-4800MT/s then the XMP setting would not be greyed out and the XMP can be Enabled.
    • As per Crucial ram recommendations above, the mobo can use the overclocked 6000MT/s and 6400MT/s ram speed, as Crucial would not recommend these upper ram speed DDR5 modules for the PO5-655 desktop if the PO5-655 desktop didn’t work at those speeds. As I've suggested to you, you have the wrong DDR5-6400MT/s and CL type ram, that is why its not working, use the suggested Crucial DDR5-6400MT/s CL36 type ram as that will work.
    • Also, what is your Task Manager memory speed say? As that should tell you the exact ram speed that your desktop is running at with dDR5-5600, 600 or 6400MT/s ram speeds.

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

  • gilp456
    gilp456 Member Posts: 7

    Tinkerer

    Again, thank you for the response.

    However, why are you citing the Intel CPU specs? The original post is regarding XMP support. Not the default max ratings of the Intel CPU. These are two completely different specifications and have different requirements. Here is Intel's public site regarding what it takes to implement XMP successfully -

    https://www.intel.com/content/www/us/en/gaming/extreme-memory-profile-xmp.htmlError

    The Acer Predator Orion 5000 series claims to support XMP memory, yet as far as I can tell does not actually implement the correct XMP behavior in BIOS. If XMP fails to load, then BIOS is supposed to fallback to default JEDEC timings. This is not happening, it bricks the system with a continuous audible alarm.

    Currently installed DIMM's are 5600, but only train at 4400 (or 4000) depending on which slots are populated - further confirming what I have stated in that the memory configuration seems to be hard coded in the Acer BIOS and not honoring the SPD timings in the RAM. I have already confirmed this in Windows Task Manager.

    Windows task manager says 4400, even though 5600 DIMM's are populated.

    Also, your statement about how XMP works and that it requires certain memory is not accurate. While not all RAM modules may work with all motherboard/CPU combinations, if the XMP spec was implemented correctly then customers such as myself would not be able to encounter an unrecoverable event by simply enabling XMP! Most likely, if Acer were actually reading the SPD timings, programming BIOS (and the CPU memory controller) correctly, almost any memory would most likely boot. That is of course, if Acer (or whoever designed the motherboard) actually followed Intel PCB design rules regarding the memory bus layout on the PCB. As well as, if Acer designed in their power delivery to be able to support higher memory speeds which at this point seems unlikely.