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M4700 Owners Thread

Discussion in 'Dell Latitude, Vostro, and Precision' started by ejl1980, Aug 11, 2012.

  1. davesurfer

    davesurfer Notebook Enthusiast

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    Currently I have the Intel 6300AGN 3x3 mini-PCIE WIFI installed. I'd like to get an AC adapter. Would the Intel AC 7260 work? I have 3 antennas hooked up now as it's 3x3, the 7260 only has 2x2 with two antennas. Does that matter? Will it work? Thanks!
     
  2. Aaron44126

    Aaron44126 Notebook Prophet

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    It will work. Just don't connect the grey antenna.
     
  3. SGVernor

    SGVernor Newbie

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    I recently updated to windows 10 version 1803...
    The only problem I'm experiencing now is that Dell diagnostic said that I have a "USB Composite Misconfiguration"...
     
  4. davesurfer

    davesurfer Notebook Enthusiast

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    Thanks! So I'll see huge increase in WIFI bandwidth from the AGN to the AC?
     
  5. Aaron44126

    Aaron44126 Notebook Prophet

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    You're looking at moving from 450 Mbps to 866 Mbps "theoretical speed" with 802.11ac, so almost double. However, 802.11ac only works on the 5 GHz band. If you have a dual-band router/access point, and your laptop decides to connect to the 2.4 GHz network, then you are using 802.11n and are capped out at the previous bandwidth limit. (Actually it would just be 300 Mbps since you lost one antenna.) I have set my card to 5 GHz only (it's in advanced options in Device Manager) because otherwise I find it periodically "deciding" that the 2.4 GHz band is better and switching to that. Sometimes I have to go tweak that if I have to connect to a 2.4 GHz network (i.e. my phone's hotspot is 2.4 GHz only). Devices usually do this because the 2.4 GHz network appears to have a stronger signal — which makes sense because 5 GHz is more limited by walls and such — even though it is often faster to be on 5 GHz with 802.11ac even if the signal is not as strong.

    You can avoid this by configuring your router/access point to broadcast a different SSID for the 5 GHz network, then you can just manually select it and it will never drop down to 2.4 GHz if you never tell it about that network. It seems that some Wi-Fi router makers have decided that this option is "too complicated", though, I have Google WiFi and I love a lot of things about it, but it does not have the option to have a separate 5 GHz SSID.

    866 Mbps is the "theoretical maximum" speed which you will never hit. In ideal conditions (only a few feet from the router) I am able to hit a little over 600 Mbps with the Intel 9260 card in my M6700.
     
  6. davesurfer

    davesurfer Notebook Enthusiast

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    Yeah I have 2.4 and 5 set at different SSDS already. 450Mbps! Wow yeah, no I'm getting like a quarter of that speed right now with the AGN 2.4GHz. I wish I could get 450Mbps, I think that's more theoretical speed as well. I have the Asus RT-AC68U and using it purely an access point. So that Asus has 3x3 technology for theoretical speeds of up to 1900Mbps. So with just the 2 antennas that limits me I guess, even though, I'm not really getting great speeds right now anyways with the Intel and 3 antennas.
     
  7. Andrij Yefimov

    Andrij Yefimov Newbie

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    Hello. I have a problem with my m4700 graphics card(k1000m)... No matter how I tried, i can't reach 851 mhz gpu clock and stuck on 699.8mhz.
    P.s. Solved my problem with 210w power supply...*facepalm*
     
    Last edited: Sep 6, 2018
  8. powerslave12r

    powerslave12r Notebook Evangelist

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    Hey guys, having an issue where the machine started beeping loudly while a program was 'not responding' due to load. I was able to silence it using the mute shortcut key.

    After the program was done, it stopped beeping. This has happened only once in the past under a similar condition.

    Does anyone know what it could be? Is it the graphics card or any other hardware?

    I'm going to run a diagnostic to see if that reports anything, but if anyone knows anything, please do share!


    Edit: Perhaps it's to do with power draw? When it's under load, the CPU(3740QM) + GPU (Quadro K2000M) might be pulling more power than the 180W brick can supply?

    Or possibly temperature issues?
     
    Last edited: Oct 3, 2018
  9. Aaron44126

    Aaron44126 Notebook Prophet

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    Power draw or temperature issues will only lead to throttling (unless there is an extreme heat issue maybe, which would only happen if the heatsink wasn't properly attached or maybe if a fan went out...). I don't think you'd be able to overload a 180W adapter, anyway...

    If hitting the mute button stopped the noise, then it is being piped through the sound driver by something running within Windows. If it happens again, open the volume mixer (right-click on the speaker icon on the taskbar) and you should be able to see what program is generating the sound.
     
    Last edited: Oct 3, 2018
  10. powerslave12r

    powerslave12r Notebook Evangelist

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    Thanks Aaron, that was my understanding as well. I was trying to eliminate the possibility that some Dell drivers might be indicating a hardware issue.

    I'll keep an eye open for the next time it happens.
     
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