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Thread: Does your Opus 90 surive crank and perform shutdown?

  1. #1
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    Does your Opus 90 surive crank and perform shutdown?

    This question has been asked and answered in bits and pieces in a dozen threads. But never (that I could find) in one place. It might be useful if people say what problems if any they've had with the Opus 90 surviving crank and shutting down improperly.

    I've talked to someone who says some of his carputer clients have sporadic problems with the computer not surviving crank and not shutting down properly (10% of the time or so).

    I'm wondering if for most people it's 100% reliable or only somewhat reliable.

  2. #2
    Variable Bitrate Cherub211's Avatar
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    My 90w Opus survives carnks and shuts down properly every time. (knock on wood)

  3. #3
    Raw Wave Confused's Avatar
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    I've not had ANY problems with my Opus, and hence my carputer, since I got it.

    In that, I mean that it survives crank, starts up and shuts down properly.


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  4. #4
    LAME :) lopan's Avatar
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    Quote Originally Posted by Confused
    I've not had ANY problems with my Opus, and hence my carputer, since I got it.

    In that, I mean that it survives crank, starts up and shuts down properly.


    Garry
    I just got my opus 90w in the mail today, I downloaded the manual, and looked at the section for shutdown delay... Is there really only two settings one for 10 sec and one for 20 minutes? I hope not, 10 sec seems too short and 20 minutes seems a bit long....

  5. #5
    Raw Wave god_of_cpu's Avatar
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    My 150watt OPUS works perfectly everytime so far. Yes it is only 10 sec and 20 minutes.

    If you want more discrete timing set it to 20 minutes and use software to automatically shutdown / hibernate after a certain amount of inactivity.

    Quote Originally Posted by lopan
    I just got my opus 90w in the mail today, I downloaded the manual, and looked at the section for shutdown delay... Is there really only two settings one for 10 sec and one for 20 minutes? I hope not, 10 sec seems too short and 20 minutes seems a bit long....
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  6. #6
    LAME :) lopan's Avatar
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    Quote Originally Posted by god_of_cpu
    If you want more discrete timing set it to 20 minutes and use software to automatically shutdown / hibernate after a certain amount of inactivity.
    Well that means I either have to shut off mediacar everytime, or keep having to wake up the PC when driving longer then 20 minutes. Thats not really an option for me, hopefully my PC will hibernate gracefully within 10 seconds...

  7. #7
    Maximum Bitrate none's Avatar
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    Quote Originally Posted by lopan
    Well that means I either have to shut off mediacar everytime, or keep having to wake up the PC when driving longer then 20 minutes. Thats not really an option for me, hopefully my PC will hibernate gracefully within 10 seconds...
    I have a feeling you are misunderstanding the whole concept.

  8. #8
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    no, lopan is not misunderstanding it, unless i am too! he's just saying if he follows the advice of "god of cpu" (setting Windows to hibernate if inactive for more than X minutes) then he needs to continually move the mouse or hit a key or something to prevent the computer from going into hibernation because of "inactivity". i assume if Winamp is just running, and you don't do anything, it would still think it's inactive. and if it doesn't think that's inactive, then that option is pretty useless as a replacement for the shutdown controller.

    i would certainly agree that 10 seconds is way too short. i don't think my computer would reliably (every time) hibernate that fast (with 512 MB ram). i could be wrong.

  9. #9
    Constant Bitrate henkbliek's Avatar
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    Having heard of the Opus concept, which is quite similar to mine, it will survive cranking and do proper shutdown. However, in case of a bad alternator and/or a bad battery, the voltage can drop as low as 5V (according to Ford specifications). My design would not bridge such low extremes and the Opus won't do either I guess.
    For the shutdown concept similar problems can rise; if someone starts playing with start>shutdown or presses the power button and then during the shutdown period also shuts down the acc. line, then the shutdown control sequence might get messed up. This is a potential problem with my design and probably for Opus as well (in fact, I heard Opus does not really like concurrent existence of the power botton at all).

    So if you have a healthy car and you don't attempt unusual power-sequencing tricks, then there shouldn't be any problem...

    Disclaimer; just back from pub at 3:40am local time, just fill in the consequences you experience...

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  10. #10
    Maximum Bitrate none's Avatar
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    I believe the 10 second/20 minute option refers to the time the Opus waits BEFORE starting the shutdown process. After that, the computer can take as long as it wants to hibernate, no hurry. This differs from the ITPS and Mucha shutdown controllers, which shut off all power a short time later.

    I believe that is what lopan was confused about.

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