DSTWO power consumption

Discussion in 'Supercard' started by topicaltapioca, Oct 3, 2010.

  1. topicaltapioca
    OP

    topicaltapioca Advanced Member

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    Sep 2, 2010
    United States
    Any unbiased tests done on this?

    Does it ALWAYS use the extra internal CPU?
     
  2. YayMii

    YayMii hi

    Member
    5
    Jun 24, 2009
    Canada
    that place
    Xenon++ and I did some tests a while ago.
    The DStwo always uses the CPU, and it shaves off about 15-20% of your battery life.
     
  3. NinjaMic

    NinjaMic Advanced Member

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    Jul 8, 2010
    United States
    Yikes.....hows that looking for a 3 month old DS Lite?
     
  4. YayMii

    YayMii hi

    Member
    5
    Jun 24, 2009
    Canada
    that place
    Depends on your usage.
    You lose a max of 1 hour of battery life IIRC.
     
  5. tomrev

    tomrev GBAtemp Fan

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    1
    Oct 19, 2009
    United States
    Do you mean SCDS2 CPU always run regardless of its need to operate or not. I mean it has no sleep state that wasted power consumption, right?

    I guess you mean testing on topic - > http://gbatemp.net/t237948-dstwo-battery-killer?&st=15 (sorry, if I'm wrong) that discuss about SCDS2 battery.
    This test is good and useful but there is 2 points that I feel not right. First, test by turning DS brightness to MAX because it need to test SCDS2's battery consumption , not DS power consumption. That should get rid of irrelevant factor as much as possible to get the best result. Second, no comparison test between "DS & SCDS2" and "DS & normal cartridge" but use official battery life instead, it's unreliable to test with different environment.
     
  6. 9th_Sage

    9th_Sage GBAtemp Maniac

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    Apr 30, 2008
    United States
    At the very least, it clocks the CPU down (there are 4 supported levels, with the highest being ~400 mhz). I'm not really sure if it ever shuts down completely.
     
  7. FAST6191

    FAST6191 Techromancer

    pip Reporter
    21
    Nov 21, 2005
    United Kingdom
    For what it is worth I found most flash carts draw extra idle power (I know this is for EZ but I since found an R4 clone and a few others to test with although I did not test as thoroughly as the following)-
    http://ezflash.sosuke.com/viewtopic.php?f=16&t=15020 scroll down
     
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