EVGA

Helpful ReplyAdding a pci express 10Gb card to slot 15 (PCIe x8) causes one DIMM to disappear

Author
Post
Essentials Only Full Version
mokrunka
New Member
  • Total Posts : 35
  • Reward points : 0
  • Joined: 2009/09/16 20:32:05
  • Status: online
  • Ribbons : 0
2024/09/30 14:03:58 (permalink)
See title. I have 2x 32gb dimms installed with my 12900k. Been running great for a couple years. I also have 2 nvme drives (top 2 slots), my 3090Ti (top x16 slot), and a USB expander in the bottom most x4 PCIe slot.

I want to add 10gb networking, so I added an Intel 10gb card I pulled working from another server to the previously empty x8 PCIe slot. When I boot, one of my ram sticks is no longer detected and it shows only 32 GB available. The system otherwise boots just fine. If I remove this card and boot again all 64 GB are available. If I reinstall the 10 GB card and remove the USB expander, I once again see only 32GB of RAM.

Is there some resource limit that is happening that would cause one DIMM to be unaddressable when installing this NIC?
post edited by mokrunka - 2024/09/30 15:08:05


#1
List Solutions Only

11 Replies Related Threads
    Cool GTX
    EVGA Forum Moderator
    • Total Posts : 30807
    • Reward points : 0
    • Joined: 2010/12/12 14:22:25
    • Location: Folding for the Greater Good
    • Status: offline
    • Ribbons : 123
    Re: Adding a pci express 10Gb card to slot 15 (PCIe x8) causes one DIMM to disappear 2024/09/30 14:46:08 (permalink)
    which Z690 MB do you have?
    OS?
    PSU? - maybe not enough power?


    Is the AUX power socket on your MB, connected to the PSU to give more power to PCIe?
     

    Learn your way around the EVGA Forums, Rules & limits on new accounts Ultimate Self-Starter Thread For New Members

    I am a Volunteer Moderator - not an EVGA employee

    Older RIG projects RTX Project  Nibbler


     When someone does not use reason to reach their conclusion in the first place; you can't use reason to convince them otherwise!
    #2
    mokrunka
    New Member
    • Total Posts : 35
    • Reward points : 0
    • Joined: 2009/09/16 20:32:05
    • Status: online
    • Ribbons : 0
    Re: Adding a pci express 10Gb card to slot 15 (PCIe x8) causes one DIMM to disappear 2024/09/30 14:56:32 (permalink)
    I’ve got the Kingpin mobo.

    Psu is a 1000W Seasonic titanium, so power should not be an issue.

    No, the aux socket is not connected. In fact, I’d never even noticed it was there. Let me see if I can get a 6 pin connector over there and report back.


    #3
    Cool GTX
    EVGA Forum Moderator
    • Total Posts : 30807
    • Reward points : 0
    • Joined: 2010/12/12 14:22:25
    • Location: Folding for the Greater Good
    • Status: offline
    • Ribbons : 123
    Re: Adding a pci express 10Gb card to slot 15 (PCIe x8) causes one DIMM to disappear 2024/09/30 15:08:00 (permalink)
    mokrunka
    I’ve got the Kingpin mobo.

    Psu is a 1000W Seasonic titanium, so power should not be an issue.

    No, the aux socket is not connected. In fact, I’d never even noticed it was there. Let me see if I can get a 6 pin connector over there and report back.



    Learn your way around the EVGA Forums, Rules & limits on new accounts Ultimate Self-Starter Thread For New Members

    I am a Volunteer Moderator - not an EVGA employee

    Older RIG projects RTX Project  Nibbler


     When someone does not use reason to reach their conclusion in the first place; you can't use reason to convince them otherwise!
    #4
    mokrunka
    New Member
    • Total Posts : 35
    • Reward points : 0
    • Joined: 2009/09/16 20:32:05
    • Status: online
    • Ribbons : 0
    Re: Adding a pci express 10Gb card to slot 15 (PCIe x8) causes one DIMM to disappear 2024/09/30 18:40:49 (permalink)
    Alright, ran another 6pin PCIe cable back there and tried again. Same results this time. No matter whether the USB card is in the slot below or not, the presence of the 10gb NIC causes one of the memory sticks to not be read.


    #5
    Sajin
    EVGA Forum Moderator
    • Total Posts : 49089
    • Reward points : 0
    • Joined: 2010/06/07 21:11:51
    • Location: Texas, USA.
    • Status: online
    • Ribbons : 199
    Re: Adding a pci express 10Gb card to slot 15 (PCIe x8) causes one DIMM to disappear 2024/09/30 23:36:39 (permalink)
    Hmm. Now that is an odd one. You should contact evga to see what they have to say about this. Maybe some odd bios bug?


    See my current build here: https://forums.evga.com/My-bench-rig-unlimited-power-m3596024.aspx
    RTX 2080 Ti 4-way SLI?!?!: https://forums.evga.com/RTX-2080-Ti-4way-SLi-set-by-yours-truly-m2954756.aspx
    #6
    Cool GTX
    EVGA Forum Moderator
    • Total Posts : 30807
    • Reward points : 0
    • Joined: 2010/12/12 14:22:25
    • Location: Folding for the Greater Good
    • Status: offline
    • Ribbons : 123
    Re: Adding a pci express 10Gb card to slot 15 (PCIe x8) causes one DIMM to disappear 2024/10/01 08:39:26 (permalink)
    Fast BOOT is Off in BIOS?

    Learn your way around the EVGA Forums, Rules & limits on new accounts Ultimate Self-Starter Thread For New Members

    I am a Volunteer Moderator - not an EVGA employee

    Older RIG projects RTX Project  Nibbler


     When someone does not use reason to reach their conclusion in the first place; you can't use reason to convince them otherwise!
    #7
    mokrunka
    New Member
    • Total Posts : 35
    • Reward points : 0
    • Joined: 2009/09/16 20:32:05
    • Status: online
    • Ribbons : 0
    Re: Adding a pci express 10Gb card to slot 15 (PCIe x8) causes one DIMM to disappear 2024/10/01 19:03:49 (permalink)
    Not sure if fast boot is on or not - I'd have to check. What does that have to do with this (genuinely curious)?
     
    I also did some more reading about my NIC. It seems it's a PCIe 2.0 card, not 3.0. I am buying a PCIe 3.0 x4 card (which I needed to do anyway because the fan in this one turns out to rattle), the Intel X550-T2. When that arrives, I'll try again.


    #8
    Cool GTX
    EVGA Forum Moderator
    • Total Posts : 30807
    • Reward points : 0
    • Joined: 2010/12/12 14:22:25
    • Location: Folding for the Greater Good
    • Status: offline
    • Ribbons : 123
    Re: Adding a pci express 10Gb card to slot 15 (PCIe x8) causes one DIMM to disappear 2024/10/01 20:04:22 (permalink) ☄ Helpfulby mokrunka 2024/10/02 18:32:09
    mokrunka
    Not sure if fast boot is on or not - I'd have to check. What does that have to do with this (genuinely curious)?
     
    I also did some more reading about my NIC. It seems it's a PCIe 2.0 card, not 3.0. I am buying a PCIe 3.0 x4 card (which I needed to do anyway because the fan in this one turns out to rattle), the Intel X550-T2. When that arrives, I'll try again.




    Anytime you add or remove hardware; "you Want the MB to take inventory" - then the proper resources are applied - After the hardware change is recognized. 
    Your PC always has power (short of unplugging it) & that "soft off state of a Windows shutdown"  ---> prevents proper resource allocations needed by hardware changes.
     
    Windows Fast Startup causes its own issues when you change Drivers or Hardware -- because Win Fast Startup just uses the File from the Previous good start to launch the next session of Windows ... & this lets Win disregard any & all changes to the PC. 
     
    Easiest fix for Win Fast Startup - Hold the shift key down before you select shutdown & keep the shift key down until the PC is totally powered Off.  That simple step, erases the last previous good start file, this forces Windows to look at everything again & properly allocate resources & recognize new drivers
     
    Both of those steps are considered a Best Practice
     
    This may or may not help with the current strange issue you are seeing: hardware added & RAM disappearing issue
     
    They are a simple set of steps, costs nothing, might help & cant hurt to do, kind of a back to basics thing
     
     

    Learn your way around the EVGA Forums, Rules & limits on new accounts Ultimate Self-Starter Thread For New Members

    I am a Volunteer Moderator - not an EVGA employee

    Older RIG projects RTX Project  Nibbler


     When someone does not use reason to reach their conclusion in the first place; you can't use reason to convince them otherwise!
    #9
    mokrunka
    New Member
    • Total Posts : 35
    • Reward points : 0
    • Joined: 2009/09/16 20:32:05
    • Status: online
    • Ribbons : 0
    Re: Adding a pci express 10Gb card to slot 15 (PCIe x8) causes one DIMM to disappear 2024/10/03 17:28:05 (permalink)
    Ok, I tried turning off fast boot, and holding shift while shutting down and doing a cold shutdown/reboot.
     
    I tried this with my new, Intel X550-T2 PciE 3.0 x4 card in both available PCIe slots.
     
    I get the same result, one DIMM goes undetected and my RAM goes from 64GB to 32GB.
     
    I'm stumped.


    #10
    Cool GTX
    EVGA Forum Moderator
    • Total Posts : 30807
    • Reward points : 0
    • Joined: 2010/12/12 14:22:25
    • Location: Folding for the Greater Good
    • Status: offline
    • Ribbons : 123
    Re: Adding a pci express 10Gb card to slot 15 (PCIe x8) causes one DIMM to disappear 2024/10/04 07:36:54 (permalink)
     
     
     
    So, the puzzle continues

    Please, list all connected devices including the USB ports ?     
     
    Number & type of Monitor(s) / does monitor(s) have USB Hubs that you are using?

    RAM?      - Brand & Model # - using XMP settings in BIOS? 
            - is the Voltage for RAM set to Auto or did you set V, manually (to the RAM Mfg setting on sticker on RAM)? --> set it manually if on Auto 

    MB BIOS ---> which BIOS are you using / have you tested?      
     
    Are you setting the MB PCIe lane Manually (in BIOS) to PCIe 3.0 -- before you install the 10G NIC


    Z690 CPU         (all only have 20 PCIe lanes) 

    1 - PCIe 5.0 @ 16x (or 2 @ 8x)

    1 - PCIe 4.0 @ 4xZ690 Intel spec Chip-set Expansion Options
    • Direct Media Interface (DMI) Revision 4.0
    • Max # of DMI Lanes 8
    • PCI Express Revision 3.0, 4.0
    • PCI Express Configurations ‡ x1,x2,x4
    • Max # of PCI Express Lanes 28 
       
       
      OK looks like you are using 16 + 4 +4 +1 = 25 of the available 28 PCIe lanes ... before you install the 10G NIC
       
      adding the Intel X550-T2 PCIe 3.0 x4 card --- requires 4 more PCIe lanes, So GPU should drop to 8x
       
       

       EVGA Z69-0 DARK Manual

      PCIe Lane Distribution
      ❑ PE1 – x16 (Gen5, x16 lanes from CPU, x8 shared with PE2)
      ❑ PE2 – x8 (Gen5, x8 lanes from CPU)
      ❑ PE3 – x4 (Gen3, x4 lanes from PCH, x4 shared with PU)
       
      M.2 Lane Distribution*
      ❑ M.2 Key-M (110mm, Top, M.2_1) – Gen4 x4 from CPU
      o This slot supports PCIe M.2 SSDs / Intel® Optane.
      ❑ M.2 Key-M (110mm, Middle, M.2_2) – Gen4 x4 from Z690 PCH
      o This slot supports PCIe M.2 SSDs / Intel® Optane
       
      M.2 Key-E (32mm) – Gen1 x1 from Z690 PCH
      o This slot is pre-installed with the EVGA Wi-Fi/BT Module
       

       
       

    Learn your way around the EVGA Forums, Rules & limits on new accounts Ultimate Self-Starter Thread For New Members

    I am a Volunteer Moderator - not an EVGA employee

    Older RIG projects RTX Project  Nibbler


     When someone does not use reason to reach their conclusion in the first place; you can't use reason to convince them otherwise!
    #11
    mokrunka
    New Member
    • Total Posts : 35
    • Reward points : 0
    • Joined: 2009/09/16 20:32:05
    • Status: online
    • Ribbons : 0
    Re: Adding a pci express 10Gb card to slot 15 (PCIe x8) causes one DIMM to disappear 2024/10/04 09:53:53 (permalink)
    • DDR5 2x 32GB DIMMs, Kingston Beast 5600Mhz - XMP yes
    • MB Bios: forgot to check this. iirc I've got it updated to the latest version from sometime in 2023
    • Monitors: 2x. Once of them has USB devices plugged into it. I'd have to check, but I have most all of the ports on the back of the mobo populated with USB devices. Including joysticks, mouse, keyboard, mic, etc. I'm not using any USB hubs/expanders.
    • I have tried to manually set the PCIe lane to PCIe 3.0, as well as disabling the bluetooth/wifi U.2 device (I don't use it)
    • Because of what you mention about the PCIe lanes, I've tried both with and without the USB PCIe card. So, should be using max of 28 lanes with the NIC installed.
    • I did notice this in the device manager. I tried updating all intel chipset drivers using their tool, and it says all of the drivers are up to date. I've confirmed the 10Gb NIC is working. So, basically everything is great except for the fact that i lose a RAM stick!
    • ETA: the image didn't work. it says there is a yellow ! on the 'resource hub proxy device'. it says this device is currently waiting on another device or set of devices to start. Dependencies PCI\VEN_8086&DEV_7AFC&SUBSYS_10633842&REV_11\3&11583659&0&C8
       
    post edited by mokrunka - 2024/10/04 09:56:02


    #12
    Jump to:
  • Back to Mobile