Results 1 to 10 of 10

Thread: DC-DC power supply and CarPC pro shutdown controller issues, could use some help

  1. #1
    Maximum Bitrate vicky_obee's Avatar
    Join Date
    Dec 2003
    Posts
    562

    DC-DC power supply and CarPC pro shutdown controller issues, could use some help

    HI every one heres my pc config...
    VIA P4 mini ITX, PW-200-M DC-DC power supply, Car EZ pro ( NO INVERTER and AMP )

    I have hooked up all the wiring as per the manual....( Inverter and AMp wiring not connected )

    All indicatins are fine....

    but when i turn ON the IGNition ( all 4 leds on EZ pro controller turn ON ) the PC boots UP without pushing the ON / OFF Switch. ..and now when i turn on the car the PC reboots ( obviously as the current drops )

    I have checked all the wiring and no possibility that the ON / OFF switching or wiring is faulty.....

    Can U guys pls help me out...
    Thanx in advance
    Commell LV-677 DC 6 x 6" Mother Board
    2.6 GHz; 1 Gb Ram
    120 Gb Laptop HD
    7" InDash Xenarc MTD - X7000 Screen
    Gyration Mouse ; GPS Mouse ; ELM Scan ; TPMS
    Parrot MK 6000 & iPhone
    ----------
    Re done the carputer...Into the Glove Box !!

  2. #2
    Neither darque nor pervert DarquePervert's Avatar
    Join Date
    Apr 2004
    Location
    Elsewhere
    Posts
    13,949
    If you wired everything according to the manual, then it's doing exactly as it's supposed to. The Car EZ starts the PC, which it is supposed to do. I don't understand why you think that's a BAD thing (as indicated by your frownie face).

    The problem is the PW200M.
    When you're starting the car the voltage drops as it feeds the starter. The PW200M doesn't regulate the 12v line to provide constant power, especially during engine crank.

    Frankly, the PW200M is a piece of ****. It doesn't provide the 200w that it says it does. If you get a regulator for the 12v line, you're going to have about 60w regulated, if I remember correctly.
    I suggest looking into either a Keypower 250w unit (which has no shutdown controller) or the DSATX 220w which has all the goodies built-in.
    The Opus makes a 150w PSU that includes a startup/shutdown controller.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  3. #3
    Maximum Bitrate vicky_obee's Avatar
    Join Date
    Dec 2003
    Posts
    562
    Hi well i think it is bad cos lets say i DOnt want to use my PC..Now when i turn on the IGN the SDC kicks in and BOOTS up the Car PC ( with out any input from my side ie.. by pressing the On button )
    SO does this means i HAVE to get the PC running each time i turn on the ignition or start the car ?
    Commell LV-677 DC 6 x 6" Mother Board
    2.6 GHz; 1 Gb Ram
    120 Gb Laptop HD
    7" InDash Xenarc MTD - X7000 Screen
    Gyration Mouse ; GPS Mouse ; ELM Scan ; TPMS
    Parrot MK 6000 & iPhone
    ----------
    Re done the carputer...Into the Glove Box !!

  4. #4
    Constant Bitrate Legarcondemerde's Avatar
    Join Date
    Jul 2005
    Location
    The Biggest Little City
    Posts
    210
    I used switches to control this. I have one that cuts power to my Lilli, one that cuts the accessory line going to the Opus 150 (so I can start my truck briefly without the PC booting) and another that cuts the 12V line on the Opus through a relay, just as if I disconnected it from the battery.

  5. #5
    Neither darque nor pervert DarquePervert's Avatar
    Join Date
    Apr 2004
    Location
    Elsewhere
    Posts
    13,949
    Simple solution:
    Put a switch on the 12v hot line. If the switch is on, the PC gets power and boots up. If the switch is off, there's no power, so it won't boot.

    Either way, your PW200M is the source of your problem. It won't survive engine crank. Hell, it surprises me that you haven't fried a motherboard with it yet.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  6. #6
    MySQL Error MatrixPC's Avatar
    Join Date
    Sep 2003
    Location
    Beach City, Socal
    Posts
    4,053
    You should consider why a 150W PSU selling for almost 200 bucks (price already drop) and a 200W PSU selling for less than 100 bucks?
    2004 Matrix XR A7N8X-VM/400 AMD XP-M 2500+, DS-ATX
    89 Supra Turbo P3 600E@750/Abit BE6 II, Alpine M-BUS Car2PC.
    Y2K Accord Dell GX150
    RoadRunner is the best FE PERIOD
    EmoRebellion is a SCAMMER

  7. #7
    Maximum Bitrate BoraXP's Avatar
    Join Date
    Jul 2003
    Posts
    657
    Quote Originally Posted by DarquePervert
    Hell, it surprises me that you haven't fried a motherboard with it yet.
    ive been using a 120w m10k designed cheap *** $40 power supply for 3 years with no power supply related problems

  8. #8
    Maximum Bitrate
    Join Date
    Apr 2002
    Location
    Houston, TX
    Posts
    558
    I am always surprised by the nocks on the PW-70 thru PW-200 PSU's.... I will admit that for full size mother boards and 3-1/2" drive systems that are not the best choice, but I have had the PW-70 and PW-200 powering my M10000 and 2-1/2" HD system for over 2 years now with no problems....

    Size-wise they are the best choice for Via boards for indash install.... I ain't running large power draining hardware or graphic intensive software... so for me and I am sure many others the PW-XXX PSU are perfect... And they are well made... I have never had a bit of problem with either.

    Now since nobody else answered the question asked, I will attempt to answer it.

    I too have the CarPC Pro SDC, and from your post it is acting as it should. The hook up from the CarPC Pro to the Power Swtich (the 2 pin header between the black connectors) is only to allow you to also use the PC power switch, instead of the ACC line going hot, to turn on the PC. It is not designed the way I think you are expecting it to work.

    So DP's suggestion above is your best choice and it is simple to do....

    If I mis-understood your question, correct me and I will try again.

    Oh, yeah... I admit the PW-200 will not survive a crank.... So either use a tank circuit and small SLA battery (thecarpcstore.com) has a nice simple one.... or make your own.... or don't crank the car with the PC on....

  9. #9
    Constant Bitrate OoNikFraleyoO's Avatar
    Join Date
    Mar 2005
    Location
    Alabama
    Posts
    208
    Quote Originally Posted by vicky_obee
    Now when i turn on the IGN the SDC kicks in and BOOTS up the Car PC ( with out any input from my side ie.. by pressing the On button )
    This is exactly what it is supposed to do. Its the whole point of the thing. One thing you can do is, set the delay from the time the SDC is triggered by the IGN to give you enough time to start the engine. I use the Car PC Ez with a keypower 250w PSU. It survives crank just fine with a my stock battery.

  10. #10
    Neither darque nor pervert DarquePervert's Avatar
    Join Date
    Apr 2004
    Location
    Elsewhere
    Posts
    13,949
    Quote Originally Posted by dug1967
    I am always surprised by the nocks on the PW-70 thru PW-200 PSU's.... I will admit that for full size mother boards and 3-1/2" drive systems that are not the best choice, but I have had the PW-70 and PW-200 powering my M10000 and 2-1/2" HD system for over 2 years now with no problems....
    Because they advertise it as 200w power supply, but don't tell you that the 12v rail is unregulated.
    For stability (not to mention preserving your hardware!), you should regulate the 12v line, which will lower the output of the PW200M. It's a misrepresentation of the true capabilities of the unit.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

Similar Threads

  1. FAQ: Power Supplies Explained (Part 1)
    By Bugbyte in forum The FAQ Emporium
    Replies: 14
    Last Post: 06-10-2007, 07:45 AM
  2. Replies: 14
    Last Post: 10-01-2005, 11:21 PM
  3. Adding A Second Power Supply
    By Osiris in forum Power Supplies
    Replies: 0
    Last Post: 04-04-2005, 05:40 AM
  4. Shutdown Controller
    By SpectraCelica in forum Power Supplies
    Replies: 2
    Last Post: 01-31-2005, 09:34 PM
  5. Choosing a power supply now.
    By Osiris in forum Power Supplies
    Replies: 19
    Last Post: 01-31-2005, 05:51 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •