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Precision 7560 & 7760 Owners' Thread

Discussion in 'Dell Latitude, Vostro, and Precision' started by hoxuantu, Jul 8, 2021.

?

Which Precision do you own?

  1. 7560

    50.0%
  2. 7760

    50.0%
Multiple votes are allowed.
  1. win32asmguy

    win32asmguy Moderator Moderator

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    You should try driving those monitors via USB-C as it allows the Nvidia GPU to shut off unless an app requires it. If you have mDP/HDMI set as the primary display you will likely have to reboot to see a power drop even if the displays were unplugged as Windows likes to startup a bunch of background processes that tie themselves to whatever GPU the primary display is set to. Because of this issue, I think the Precision is really superior to the Thinkpad / Zbook line because it has the ability to drive addition displays via USB-C connected to the Intel GPU.
     
    alaskajoel likes this.
  2. Aaron44126

    Aaron44126 Notebook Prophet

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    Note that this only works if you have displays attached via USB-C and direct discrete output mode turned OFF in the BIOS.
     
    thock likes this.
  3. Ionising_Radiation

    Ionising_Radiation ?v = ve*ln(m0/m1)

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    I'd be happy to:
    [​IMG]

    That said, overclocking is not available on the Xeons (not that I need it: the CPU maintains 3.8 - 4 GHz easily).

    Not yet: I'll try this. I've operated under the assumption that the core and cache voltage offset should be exactly the same. Can't remember where I read this.
     
  4. Aaron44126

    Aaron44126 Notebook Prophet

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    https://www.dell.com/en-us/shop/pfydresults/272815?categoryId=4325

    I noticed that they seem to have "corrected" the price of the 32GB ECC memory modules that you can purchase separately at the Dell website. They are now $450 USD. In early July they were $220 USD. Still a bit cheaper than ordering them with the system, but the difference is much less drastic...
     
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  5. jack574

    jack574 Notebook Evangelist

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    Solved the mystery of the missing Cuda option in the task manager GPU usage graph.

    With this setting on, it is not there.

    With the setting off, it is there.

    Anyone know what the setting does, and whether or not it should be on? Obviously it tells me what it does, but just wondering if it's a good thing in reality vs MS's recommendation...

    I'm using hybrid graphics if that's relevant.

    Thanks

    upload_2021-8-24_21-49-52.png
    upload_2021-8-24_21-52-8.png
     
    Last edited: Aug 24, 2021
  6. Aaron44126

    Aaron44126 Notebook Prophet

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    https://devblogs.microsoft.com/directx/hardware-accelerated-gpu-scheduling/

    Basically, you'll get a modest performance boost in some applications if this is enabled. Very modest (<2%). Here's some benchmarks:
    https://www.gamersnexus.net/guides/3599-windows-10-hardware-accelerated-gpu-scheduling-benchmarks
    (Some show better with it enabled, some show better with it disabled, margin of error is small in either case.)
     
  7. jack574

    jack574 Notebook Evangelist

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    Thanks a lot. Why would it stop me being able to see the cuda usage in TM? Really annoying...
     
  8. hoxuantu

    hoxuantu Notebook Guru

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    Is there anyone try to run stress test both CPU and GPU using Furmark ? I tested my laptop and while the A2000 GPU was capped at 80W, the CPU was limited to 35 W !!!
    I hope the total power for CPU + GPU (especially CPU) should go higher because the same cooling system is being used for higher specs.
     
  9. zhongze12345

    zhongze12345 Notebook Evangelist

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    You could just run another CPU benchmark (Ex. Cinebench).
    Was the CPU capped at 35W when you put a load on the CPU and GPU? 80W GPU power is at the limit of the 7560, so the CPU being stuck at 35W isn't unrealistic.
    However, the GPU using all the available wattage while giving much less to the CPU in a combined workload makes sense since most cases are either 100% GPU or 100% CPU.
     
  10. hoxuantu

    hoxuantu Notebook Guru

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    If run CPU stress alone, the max power is 95W for CPU. When stressing both CPU and GPU, CPU was capped at 35W. I supposed that with GPU runs at 100% (80W), CPU can run with higher power.
     
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