M4800 Owner's Thread

Discussion in 'Dell Latitude, Vostro, and Precision' started by changt34x, Oct 29, 2013.

  1. xacques

    xacques Notebook Enthusiast

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    I always have mine set to "Primarily AC Use". Where do you see the charge cycles?
     
  2. xacques

    xacques Notebook Enthusiast

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    The Dell M4800 manual states:
    Maximum memory
    1. Intel Core i5 and i7 Dual processors — 16 GB
    2. Intel Core i7 Quad Core and i7 Quad Extreme processors — 32 GB
    Let's look at the processor's capabilities from Intel's website.

    I have the Intel i7-4940MX extreme edition processor installed in my M4800.
    Looking at the specs on Intel's website states:

    Max Memory Size (dependent on memory type) 32 GB
    Memory Types DDR3L 1333/1600
    Max # of Memory Channels 2
    Max Memory Bandwidth 25.6 GB/s
    ECC Memory Supported No

    32GB is all the memory the quad core extreme processor can handle.
     
  3. Aaron44126

    Aaron44126 Notebook Prophet

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    There is a "Custom" option in the battery config in the BIOS, which allows you to set the max charge as a percentage.
     
  4. jedisurfer1

    jedisurfer1 Notebook Deity

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    You'll need a broadwell or newer cpu to take 1x16gb sodimm. I'm wondering why dell has a 3200x1800 and 3840x2160 screen options on these.
     
  5. scrlk

    scrlk Notebook Consultant

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    Press F12 on boot and enter the diagnostics screen. Then press ESC to cancel the test, then go to the configuration tab and scroll down.
     
  6. alexhawker

    alexhawker Spent Gladiator

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    Why's that?
     
  7. Aaron44126

    Aaron44126 Notebook Prophet

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    3200x1800 is double 1600x900, and 3840x2160 is double 1920x1080. Both of those are resolutions that you would typically see in a non-high-DPI system at 15".
     
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  8. xacques

    xacques Notebook Enthusiast

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    None of the Broadwell quad core mobile processors support more tha 32GB memory max and the broadwell dual core mobile processors support 16GB memory max except for one which supports 32GB. So what is the point of 1x16GB SODIMM? You would need a Skylake, Intel 6th generation mobile quad core CPU to be able to have max support of 64GB.
     
  9. xacques

    xacques Notebook Enthusiast

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    Ok. Thank you, I found the charge cycles. So I purposely always had the primary battery set to "Primarily AC Use" and the secondary battery set to "Standard". I use the "Dell Command Power Manager" program in windows to adjust and check battery settings which seems to do the same as the BIOS settings. Right now the Command Power Manager shows both batteries' health as 4 out of 4 dots and says battery health is excellent. However when going to the diagnostic menu upon the F12 boot option, it shows Primary battery as 123 charge cycles and battery health is 72%. It shows secondary battery charge cycles of 248 and battery health of 72%.
     
  10. scrlk

    scrlk Notebook Consultant

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    :eek: - 248 cycles and 28% wear! I thought I was doing badly with 17% wear on over 300 cycles.

    For reference I have the charging thresholds to start at 80% and to stop at 90%. The command power manager doesn't seem to be that good if it's still reporting excellent health.
     
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