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    Lag spikes/Framerate drops on L702x

    Discussion in 'Dell XPS and Studio XPS' started by mortenvat, Jun 30, 2011.

  1. mortenvat

    mortenvat Notebook Enthusiast

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    I mean the fps drops dramatically for a couple of secounds. examble if i Play Crysis 2 and listen to music, suddenly framerate drops from 40 to 2 and music starts squeking and all hell breaks loose. This also happens with Counter strike source and internet browsering. I am really annoyed by this as it happens quite often. I have already contacted dell and they told me to run hardware diagnotics. Test results showed no errors.. tomorrow im going to run ubuntu and check if its a software fault. wish me gl.

    And btw I have only overclocked once, and the temperature reached 70 and screen started flickering. minimized game and reset clocks, !?
     
    mortenvat, Jun 30, 2011
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  2. otacon

    otacon Notebook Evangelist

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    This is kind of a poor man's approach to it but it's worked for me a few times on an unrelated issue. If the lag lasts longer than say 1-2 seconds fire up Task Manager and watch the Processes tab. Sort the CPU to go from most to least usage. When you get the lag spike see if one of the running processes uses up a ton of CPU resources. It helped to figure out a program or two I had running in the background causing issues.
     
    otacon, Jun 30, 2011
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  3. madmattd

    madmattd Notebook Deity

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    I'd say look at CPU and GPU temps. If those aren't a problem (you mention 1 is in the 70s C, that is not a problem for a laptop), then I don't know.

    Are you running an SSD? Then that could be the problem, the chipsets in the Sandy Bridge laptops has an issue with LPM. Ignore this part if you don't have an SSD. Holler at Dell in that case, you should not be seeing this. Dell Hardware Diagnostics are useless btw, they didn't catch my faulty HDMI port on my first laptop. It didn't work at all...
     
    madmattd, Jun 30, 2011
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