Weird situation, M18X R2 + 4GB GTX 980m = PCIe Bus speed stuck @ 4x 3.0

Discussion in 'Alienware 18 and M18x' started by UltraGSM, Jun 5, 2020.

  1. macdaddy8000

    macdaddy8000 Notebook Consultant

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    I have kind of the same issue i think, mine is stuck at x8 3.0 with only a single card and my FS score with 3940XM is only 6000 points, (cpu 10000, gpu 5800 roughly), i have flashed premamod v2 vbios with no change. I have i 2 hdd 1 ssd + 1 mSATA connected, can this limit my pci speed to 8x?
     
  2. macdaddy8000

    macdaddy8000 Notebook Consultant

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  3. ssj92

    ssj92 Neutron Star

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    x8 3.0 is correct since the system has 2x x8 ports for pcie.

    Score is low. Did you try the hibernation trick I posted earlier?
     
  4. macdaddy8000

    macdaddy8000 Notebook Consultant

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    No, i will try that right away.
     
  5. macdaddy8000

    macdaddy8000 Notebook Consultant

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    That actually improved alot at 8343 points that run. thanks for the advice
     
  6. ssj92

    ssj92 Neutron Star

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  7. UltraGSM

    UltraGSM ...so many Alienwares...

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    I dont know ... tried hibernation trick, no change (be aware, Im on w7 legacy boot, maybe thats the reason hibernation trick doesnt work, as I must run SG or if I choose PEG in legacy I get 8 beeps, I must use UEFI to use PEG only, but I have not experiented with that like so YET... maybe later today, just dont like idea o win10 on my baby....at all.

    Im on latest nv drivers, would that cause score be crap? Im not experiencing any thrototling or downclocking during GPU load sessions, just score is crap thats all.. I have feeling its down to VBIOS + Driver + OS/Boot mode/SG issue.... trying to stay away from idea its the GPU itself.

    My idle temps are between 38-49c my full load sustained stress temperatures does not exceed 70c while gaming and thats not using HWinfo fan controls, if used HWinfo - temps are 5-10 degree lower on full GPU load.

    FS gave ~8500 score, when 135MHz Oced on the core, FS gave me ~8950 score... HALP...
     
  8. ssj92

    ssj92 Neutron Star

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    Try this..

    1) Plug in laptop to power adaptor.

    2) Turn on and immediately go to BIOS and change graphics type to IGPU.

    3) Let windows load then click start>restart

    4) Go into BIOS again and set to SG graphics

    Try that and see.

    Honestly you should have bought 8GB Dell 980M it would have been almost plug n play for everything. Sounds like the 4GB models don't play well.
     
  9. UltraGSM

    UltraGSM ...so many Alienwares...

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    ok, so Ive done that, nothing changed. Tried exactly how you instructed and then alternatively tried load cold start to OS with SG,reboot->F2->iGFX->save&reboot load OS->reboot->F2->SG ... nothing. Stock clocks I keep hitting 8400-8500 firestrike. I need to reach out for some serious VBIOS modding help..im kinda surprised, and Ive searched, 4GB is not common variant to be used in M18XR2 at all as I find, yet I believe its pretty simple workaround , for those in the realm of modding vbios to that extent. it was done on 8gb variant, 4gb should be no different, circuitry should be no less the same as 8gb, just vram amount....
     
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