Page 1 of 2 12 LastLast
Results 1 to 10 of 17

Thread: UsDC shutdown

  1. #1
    Constant Bitrate
    Join Date
    Jul 2005
    Location
    NJ
    Posts
    183

    UsDC shutdown

    hey guys...im looking at the installation diagram and it shows a computer power sense wire coming from the e terminal on the jumper block. do i need this connection and what is it?...i have a 2 pin connector from my motherboard that connects to the G Pin mb power switch terminal on the shutdown controller. I turn on my car and the usb hub glows thats connected to my comp and the comp starts to boot and i see the fans goin...then all of a sudden it turns off but everythin else stays on except for the actual comp. Am i doing something wrong....i am keeping my computer case open while testing this..should it be closed or will this not matter?..i really dont understand whats going on...anyone have any ideas...my car is in pieces and im tryin to figure this out!

  2. #2
    Mo' Programming Mo' Problems
    Auto Apps:loading...
    Sonicxtacy02's Avatar
    Join Date
    Sep 2004
    Location
    Woodbridge, VA
    Posts
    8,114
    Blog Entries
    49
    thats an optional jumper. I dont understand it... dont use it.. and everything still works fine.

  3. #3
    Constant Bitrate Willy-Mach1's Avatar
    Join Date
    Mar 2005
    Location
    Laurel, Maryland
    Posts
    222
    the computer power sense connector is meant to let the usdc know if the computer is on or off. basically you connect a 5v wire from your power supply to the + pin on the terminal on the usdc. When there is voltage on that wire the computer is on when there is no voltage on that wire the computer is off. It is basically a safety measure so that the usdc won't try to turn on the computer when it is already on (causing an undesired shutdown) or try to turn off the computer when it is already off (causing an undesired boot).

    As sonic mentioned, it is optional but i've found it is quite useful. I don't know exactly what the cause to your problem is, but it is worth trying to connect this wire and see if anythin changes
    Progress: |##########| 99.99%
    - Tweaking and enjoying!!!! Never really done.....


    -= MachPuter Project =-
    -= MachPuter Project Worklog=-

  4. #4
    Constant Bitrate
    Join Date
    Jul 2005
    Location
    NJ
    Posts
    183
    hey thanks for the response..i actually got it workin but im gettin alot of video noise on my monitor. i know the monitor is fine cause i tested it with my laptop. i have a vector power invertor that is guarenteed not to have video noise and smooth start up..however my power seems to dim when i hit a light switch or sometihn...i bought the invertor remanufactured..so im hoping thats the problem..any ideas?..i cant get an opus cause i have 165 watts so...no resolution there

  5. #5
    Constant Bitrate Willy-Mach1's Avatar
    Join Date
    Mar 2005
    Location
    Laurel, Maryland
    Posts
    222
    I actually use a keypower psu, its 250W dc-dc, the only thing is that it does not have the bells and whistles that the opus has (ie. shutdown controller) but you already have the usdc which takes care off all that. that is what i'm running.
    Progress: |##########| 99.99%
    - Tweaking and enjoying!!!! Never really done.....


    -= MachPuter Project =-
    -= MachPuter Project Worklog=-

  6. #6
    Constant Bitrate
    Join Date
    Jul 2005
    Location
    NJ
    Posts
    183
    yea but how do you connect that to your battery..do you have a dc to ac invertor you mean?.....how do you connect a dc to dc to a car battery?

  7. #7
    Constant Bitrate Willy-Mach1's Avatar
    Join Date
    Mar 2005
    Location
    Laurel, Maryland
    Posts
    222
    the connections are even easier than using an inverter......car battery power is already dc so....you wire the usdc to the battery like you normally would (properly fused of course) and connect the usdc straight to the dc-dc power supply....here is a very high level illustration of how mine is wired, let me know if you have any questions.....

    Progress: |##########| 99.99%
    - Tweaking and enjoying!!!! Never really done.....


    -= MachPuter Project =-
    -= MachPuter Project Worklog=-

  8. #8
    Constant Bitrate
    Join Date
    Jul 2005
    Location
    NJ
    Posts
    183
    hmm that does look very good.....why wouldnt i be able to use my 200 watt power supply that is in my computer now..that came with the tower?...or is this a special kind of ps. my invertor has been giving my monitor static so im trying to fiugre out an alternative


    Jason

  9. #9
    Constant Bitrate Willy-Mach1's Avatar
    Join Date
    Mar 2005
    Location
    Laurel, Maryland
    Posts
    222
    the reason you can't use the power supply that came with your tower is that it is designed to run with AC, so essentially it is an AC-DC converter (of course with other functions too). So basically your car is battery is DC, you are converting it to AC with your inverter, and the computer power supply is converting it back to DC for the computer.
    Progress: |##########| 99.99%
    - Tweaking and enjoying!!!! Never really done.....


    -= MachPuter Project =-
    -= MachPuter Project Worklog=-

  10. #10
    Constant Bitrate
    Join Date
    Jul 2005
    Location
    NJ
    Posts
    183
    do you think this could fix the lines and noise on my monitor?...will this also be a lil more easy on my battery..seems like the invertor killed my battery


    Jason

Page 1 of 2 12 LastLast

Similar Threads

  1. uSDC problems in my NSX (with pix and video)
    By Joshiwashy in forum Power Supplies
    Replies: 53
    Last Post: 05-13-2012, 03:04 PM
  2. Typical shutdown controller/car pc diagram?
    By CavityCr33p in forum Power Supplies
    Replies: 6
    Last Post: 07-07-2005, 07:57 AM
  3. Please HELP!! PSU/ Shutdown controller questions
    By RJP350Z in forum Power Supplies
    Replies: 8
    Last Post: 12-23-2004, 02:37 PM
  4. New Improved ATX Shutdown Unit!
    By Danceheaven in forum General Hardware Discussion
    Replies: 22
    Last Post: 04-15-2004, 09:52 PM
  5. Can you adjust shutdown voltage on Opus 150w?
    By Visual Echo in forum Power Supplies
    Replies: 4
    Last Post: 03-26-2004, 08:04 AM

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
  •