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Thread: Arise ACE-865V dc-dc ps, system wont post, help...

  1. #1
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    Unhappy Arise ACE-865V dc-dc ps, system wont post, help...

    Hello there. I've been gathering up the parts for my mp3 car system the past month or so, and just last weekend i finally had everything and put it all together. I have a micro AT motherboard (unknown brand, found it in my mom's old puter heh), an ESS pci sound card, an ATI All-In-Wonder pci video card, and a crappy Seagate 2 gig hd. I managed to find a really kewl small case to stuff all of this in, that fits neatly under my front seat. I bought an Arise ACE-865V 12 volt dc-dc power supply to power this unit. When I flip the switch, everything looks ok...the fans are spinning, the power led lights up, the hard drive spins...however, the system just won't post. I heard about a monitor not being connected possibly causing this sort of problem, that hasn't been an issue before with this video card. I'm using the composite video out to the parts express 5" lcd. I made sure everything is grounded; the ps, the puter case, and the negative lead. Everything is connected properly. When I bring the unit back into the house, and hook it up to an ac-dc ps, everything works fine. One thing i think might be an issue, is the fact that this dc-dc ps only puts out 65w. I've heard of other ppl using this ps in their mp3 car systems. Isn't 65w enough for just a motherboard and one hard drive? What's going on? Any help is appreciated.

    I will be making a web page for my project once I have the time, but until then, here are a few pics:
    http://home.pacbell.net/plasmadi/cpu.jpg <--- the incredible amd k6-233 cpu http://home.pacbell.net/plasmadi/ps.jpg <--- the Arise ACE-865V ps http://home.pacbell.net/plasmadi/system.jpg <--- my mp3 car system http://home.pacbell.net/plasmadi/normalps.jpg <--- the system running on an ac-dc ps http://home.pacbell.net/plasmadi/screen.jpg <--- the system desktop on the parts express 5" lcd screen http://home.pacbell.net/plasmadi/winamp.jpg <--- winamp on the screen http://home.pacbell.net/plasmadi/jennygame.jpg <--- my gf playing dreamcast on the screen

  2. #2
    FLAC
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    Wink

    I know exactly what it is.....don't know if i can discribe it thoroughly to u. But seems like the video card is not getting and + . If u look real close at the wires from the PSU that hooks up to the mb, it is missing one connection. Take the wire next to it and attach it to the missing part on the white connector. Maybe i will take a picture of mine and put it on the site.

    abcd-1
    abcd-1
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  3. #3
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    Interesting. Are you sure? I asked someone about that missing wire in #mp3car before, and they said it was for the "power good" signal, and that this ps is not supposed to have it. Is this correct?

  4. #4
    FLAC
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    moahdib's Avatar
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    Isnt the Power Good Signal just +5V? i am sure it is...let me know if you get ur box working in the car plasmadis. I am thinking about getting that same dc-dc converter since my system is almost identical to yours and abcds's =)
    04 Acura TL w/ core2duo 2ghz laptop w/ 1gb RAM on a docking station.

    Fast car, fast PC. ;)

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  5. #5
    Retired Admin Aaron Cake's Avatar
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    The problem is the power good line. I have the same supply, and had the same problem with my motherboard. Some motherboards will run without a power good signal, but others won't. Does it boot if you reset the board (momentarily short the two reset pins)? I'll bet that it does. You can either do that everytime, or I can provide you with simple instructions to simulate a power good signal.

    ------------------
    Player: Pentium 166MMX, Amptron 598LMR MB w/onboard Sound, Video, LAN, 10.2 Gig Fujitsu Laptop HD, Arise 865 DC-DC Converter, Lexan Case, Custom Software w/Voice Interface, MS Access Based Playlists
    Car: 1986 Mazda RX-7 Turbo (highly modded), 1978 RX-7 Beater (Dead, parting out), 2001 Honda Insight
    "If one more body-kitted, cut-spring-lowered, farty-exhausted Civic revs on me at an intersection, I swear I'm going to get out of my car and cram their ridiculous double-decker aluminium wing firmly up their rump."

  6. #6
    FLAC
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    I 100% agree with Aaron Cake. Some motherboards redirect or gets the power from the other connections. I have two other mb that it works fine if i don't connect the missing wire. Yep...reset it and it will work. Seems like Aaron and I have experienced this problem. I ended up, for fun, with sproggy's help, creating a simple timer circuit, but i never used the mb anyway.

    abcd-1
    abcd-1
    Author of CobraI,II,III and now CobraIV.
    You can contact me on AOL instant messenger....nick is cenwesi or cenwesi3

  7. #7
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    Hello there. I had some free time this weekend, so i was able to get back to my project. I did as cenwesi said, just connected the empty pin hole to the wire next to it, and now the puter finally works! Wooooo! So now, things are looking good; the puter is back in the car, and i mounted my 5" parts express screen on the ceiling using some bolts. I found that i was able to give the screen power from the dome light. Since the screen is right there in front of it on the ceiling, this was very convenient. Some of you might be thinking "but, doesn't the light only go on when a door is open?", which is what i thought too. But remember, most dome lights have a switch where you can turn the light on while the doors are closed...wire the screen up to this part of the switch, and it will work fine. Just remember to turn the screen off when you leave your car, since it is given power continuously. A problem im having now is that the screen is a bit wobbly. It seems that just two bolts wasnt enough. I really didnt want to have to drill more than two holes in the ceiling, in case i ever had to remove the screen. I suppose i could secure it with some velcro. Another problem i ran into was trying to feed some 10 gauge wire into the car from the engine compartment. I found a hole covered by a rubber cap, which looked like it was put there to feed extra wires through, but there is something in the way on the other side. Oh well. Is there any way to get power directly from the battery without having to feed another wire to the battery? Shouldn't there be a terminal on the fuse box inside? I guess i'll keep looking. I will put up a web page with all the crap i've been doing someday, heh...

  8. #8
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    I'm sorry, i forgot to say thanks to everyone that gave me suggestions.

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