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Thread: WuNgUn PIC'S-Bench-bleeding the water-cooled carputer (almost finished!)

  1. #11
    FLAC WuNgUn's Avatar
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    2 Xonar's, 'cause I'm running active crossovers to 4 drivers, 4 tweeter and a sub (plus a L/R to a pair of VU meters in the console...)
    I need 11 channels and one 7.1 card doesn't cover that...

    Audiomulch is doing all the processing...from the input, it's fed into a 31 band EQ, then into the crossovers, then delay processing, and finally out...
    I might run phase shift in there as well on a couple of channels if I have to...I'll have to wait til it's installed...

    Please read the above post as to why I didn't choose a different mainboard/processor!!

    The H2O probably isn't needed...but it'll keep things cool AND quiet. I'm obsessive about noises in my car that aren't s'pose to be there!

    And the install isn't as much a PITA as you might think...
    The ENTIRE PC with H20, rad, power supply, etc. is all mounted into a custom made, MDF enclosure. To remove it, lift up the false floor, unplug the ground and main, disconnect the 1/8" jacks to the amps and lift 'er out...
    The rest of the install is typical of an audio install...


    Quote Originally Posted by swordfishunter View Post
    killer install dude

    but why 2 Xonar Sound cards? Mind sharing your audio setup?

    Is it 3 way, 2 way ? or with subs? Or are you doin some multi zone front / rear audio splits.

    How are you handling the audio processing? Wouldn't Optical to a processor be easier, and not to mention cheaper?

    It's really a rad install, but im wondering (besides the obvious bling-geek factor of a water cooled car pc)
    Why you didn't choose a board like the Jetway NC62k, which can run something like the AMD 4850e with the m2-atx easy, which, would support vista aero with ease, without the need for extreme water cooling.

    From experience, the car pc hobby is a friggin addictive and intensive one, with numerous testing, re testing and switching of components.

    A built in, PITA to remove install will earn you loads of neck aches and strained eyes trying to troubleshoot something seemingly minor.

    Just my two cents...

  2. #12
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    Just curious . . . How will you get two Xonar's to cooperate under windows so that one sound source (ie: Winamp) will play through both Xonar's at the same time?

    Aren't there IRQ conflicts and such?

    I'm having a hard time wrapping my brain around the concept of outputting one sound source through two sound cards.

  3. #13
    FLAC WuNgUn's Avatar
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    Quote Originally Posted by hartigan View Post
    Just curious . . . How will you get two Xonar's to cooperate under windows so that one sound source (ie: Winamp) will play through both Xonar's at the same time?

    Aren't there IRQ conflicts and such?

    I'm having a hard time wrapping my brain around the concept of outputting one sound source through two sound cards.
    It's all done thru AudioMulch and ASIO drivers...
    16 outputs show up in AudioMulch when configured this way

  4. #14
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    Love learning new things. Thank you for sharing!! I've got a w/c Desktop but, in the car is bawlz out!!

    [subscribed]

  5. #15
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    sorry to bump this old thread up but were there any updates? it seems like a very ambitious project running two xonars with so many channels all active in the car... just thinking about how to properly set phasing to these speakers, not to mention crossovers, EQs and delay effects makes me really tired
    I didn't like your approach of doing this with Vista, as that is not a very comfortable front-end in a car, but I guess you figured that out yourself already... Also, reading something very interesting called "The art of building Computer Transports" makes me think that you would want to rid yourself of so many fans and electrical consumers in your setup to reach high sound quality.
    are you resampling to say 96/24 or even 192/24?

    cheers,
    Moran

  6. #16
    FLAC WuNgUn's Avatar
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    Quote Originally Posted by moranl View Post
    sorry to bump this old thread up but were there any updates? it seems like a very ambitious project running two xonars with so many channels all active in the car... just thinking about how to properly set phasing to these speakers, not to mention crossovers, EQs and delay effects makes me really tired
    I didn't like your approach of doing this with Vista, as that is not a very comfortable front-end in a car, but I guess you figured that out yourself already... Also, reading something very interesting called "The art of building Computer Transports" makes me think that you would want to rid yourself of so many fans and electrical consumers in your setup to reach high sound quality.
    are you resampling to say 96/24 or even 192/24?

    cheers,
    Moran
    Working very well...I've since upgraded to a 2.2Ghz dual-core, and added Phidgets temp (X2), humidity and 20A current sensor...
    Nothing too complicated with setting up active channels, if you know what your doing...and I'm only using 11 of the channels.

    The reason for Vista, was (at the time) that was the only way to get both Xonar's working with discreet outputs. Only 1 Vista driver allowed this...all the others caused overlap...
    Turns out, with extensive testing, I was able to install that same Vista drive on XP!!
    And the onboard sound is used for inputs, mic and HD Radio....
    Only 1 fan runs when the CPU is under 47 degrees...then it gradually speeds up and the other joins in above that temp...
    These are brushless fans dude...they don't make 'noise'
    The other 2 fans only come on at startup then shut off...
    Also note, the Xonar's have EMI shielding...
    The only noise I ever had (sinced fixed) was a bad ground on one of my interconnects...
    Running 24 bit, 96Khz very well, especially with the dual core...
    With DVD-A's, sounds amazing!!!

  7. #17
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    Was also skimming over "The art of building Computer Transports"...looks somewhat interesting. I might try some of those ideas...
    However, our PC's have to do a lot more than just playback music...

  8. #18
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    Well, some of those worked, some didn't...
    Adding /noexecute=alwaysoff to my boot.ini caused my PC to not shut down...
    Disabling the video card disabled hibernation as well. But turning off write combining, all hardware acceleration and running in 16 bit colour made a HUGE difference in playback performance!
    Combined with some of the other suggestions in that PDF, I went from 2048 samples in ASIO buffering to 512 without and hiccups! Awesome!

  9. #19
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    What kind of coolant do you use? Make sure the freezing point of the coolant is so low that it wont freeze if the car is not running and exposed to cold temperatures. Maybe you need to add some anti-freeze to the coolant.

    Quote Originally Posted by WuNgUn View Post
    Swiftech resevoir...this actually works really well at releasing trapped air.
    Wont it let air in the system again when you break or accelerate hard?


    Have you considered mounting the radiator behind the front grill so you don't need fans running inside a hot car? Just like for the engine air cooler and air conditioning radiator? Many even use car air conditioning radiators for water cooling home PC's because A/C radiators are much cheaper than PC radiators.
    A car standing in the sun can get very hot inside, so cooling would be more efficient if the raidiator is behind the front grill in the air stream.

    Water cooling a car PC? http://forums.overclockers.com.au/sh....php?p=9918776

  10. #20
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    that sounds like a pretty ridiculous concept.
    granted, you would get great cooling down to whatever the outside temp is, but he's pretty set in having the computer in the trunk, and trying to run kink-free tubing through the length of the car twice is a chore in itself, not to mention the massive pump that would be needed to accomplish it.

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