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Thread: 2004 Infiniti G35 Coupe || My 2nd CarPC Worklog || **NO 56k**

  1. #21
    Variable Bitrate Moneyfink's Avatar
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    I didn't get many pictures of where all of the components lay, but I fit them all under my center console. I have an Opus 150, 320 GB WD 3.5" HD, Via m10000, and a slot load DVD player all in the spare space. The MB is mounted on standoffs on a piece of ABS plastic that I took out of my old car.
    my OPUS 150



    my setup looks kinda like this:

    the HD lays ontop of the ide cable which lays on my MB.
    There is very poor circulation, but my MB runs at 100F and CPU at 110F. I may add fans before the summer.


    My favorite part of the entire install: the switches and USB ports




    The switches were awesome because of an accidental discovery I had:
    G35 Owners **Awesome Hack**
    So this was one of those great accidental discoveries, right up there with penicillin. Anyway, this hack allows you to turn on your factory radio when your car is off, you don't even need the keys.

    So I wired my car like this: S1 and S2 are switches


    The purpose of S1 is kind of like a valet switch, when it is off nothing gets power
    S2 is an override that allows me to turn the PC on without turning the car on.
    S2 does nothing if S1 is already switched to the off position (duh)
    I spend about 95% of my time with S1 on and S2 off, as that makes the opus make all of the Startup and shutdown decisions.

    I had my DMM out when doing all of this wiring so I was checking voltages. My Cigarette adapter only gets power when the ignition is on. So I run the 12V from the battery and check the voltages, the switch is doing its job.
    I then Hook up S2. When I flipped that into the on postion I can hear faint white noise coming from my speakers. I thought it was weird. I thought it was just ground loop noise or something. I didn't look at my radio to see if it was on, it was set to SAT with no input so thats why there was no music coming from the speakers. The noise made me think I was going to have to put a diode in the circuit to keep the voltage from going up the cigarette lighter

    Anyway I leave it as is and put the car back together. When The computer was hooked up and the DMM was put away, I played with the switches some more. Flipping S2 on turned on the CARPC (as intended) And the Car radio!!! The Cigarette adapter must be on the same fuse as the radio or something. Anyway I can turn my radio on with this switch without even putting my key in the car. No other accessory functions turn on (wipers, turn signals, power windows, seat heaters, AC) Just the radio.

    This was the coolest accidental hack ever. I only tried it on the Cig-adapter in my center console.
    My OLD carputer page
    My NEW carPC



    Via Epia M10000, 512 PC2100, Opus 150, 8" lilly touch, 320 GB 7200 WD Caviar

  2. #22
    Variable Bitrate Moneyfink's Avatar
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    Given Everything I had running I wanted to know How much power I was consuming to see If i had enough juice left for a 160 GB 5400 RPM to add to the system. So I hooked up the DMM and took notes:


    V=12.75 V
    Current Draw
    Power OFF: .14A
    Hard drive Spin up =5.05 A
    power on booted, no programs running =3.00 A
    Start audio = 3.95A
    Peak while audio plays = 4.25A

    So the most Power I used was about 63Watts
    This was measured across the fuse box that was right next to my battery. So looking at inefficiencies in the opus and the wire, I was prolly using less than 60 Watts. My bench test power supply is just a modified AC adaptor for a laptop, with a selectable range of output voltages (8-20). It said its max output was 60 W and I used that thing for hours on end, with no problems. So it would make sense that I was only using about 60 watts

    My startup time is 54.7 seconds from ign to music
    Broken down as such (approx)
    5 seconds opus delay ( I hate that)
    7 seconds BIOS
    31 seconds windows
    11 seconds for RR to load FE and playlist with 2700 songs. I many more than 2700 songs, that was just the playlist that was loaded when I booted.

    I have optimized my bios, I have an Nlited copy of XPPro SP2, I have prefetch enabled for boot only, I have 10 processes and 9 services. I have optimized with bootvis a few times. I have been unable to defrag lately. Is there anything else I can do to speed this up!!!
    My OLD carputer page
    My NEW carPC



    Via Epia M10000, 512 PC2100, Opus 150, 8" lilly touch, 320 GB 7200 WD Caviar

  3. #23
    Maximum Bitrate Caelric's Avatar
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    Very nice!

    I too have a switch wired directly to the battery, so I can turn my carPC on in case I want to load some software, or work on some issues in my garage, without turning the whole car accessory system on. It works out quite well for me.

    Dave
    2005 Infiniti G35 6MT Coupe Black/Black
    Core Duo CarPC
    CarDomain page

  4. #24
    Variable Bitrate Moneyfink's Avatar
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    Quote Originally Posted by Caelric View Post
    Very nice!

    I too have a switch wired directly to the battery, so I can turn my carPC on in case I want to load some software, or work on some issues in my garage, without turning the whole car accessory system on. It works out quite well for me.

    Dave
    What do you use for you ignition wire, when the switch is in the off position? Do you have it configured so that when you flip that switch, the Head Unit turns on? I want to think I was the person who discovered this!
    My OLD carputer page
    My NEW carPC



    Via Epia M10000, 512 PC2100, Opus 150, 8" lilly touch, 320 GB 7200 WD Caviar

  5. #25
    Constant Bitrate seanshine's Avatar
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    Quote Originally Posted by Moneyfink View Post
    My startup time is 54.7 seconds from ign to music
    Is there anything else I can do to speed this up!!!
    Nice screen fabrication,looks o.e.m.
    Your boot time is about what it should be considering that via cpu is the equivalent of a p3 550.
    The amd geode cpu is much faster and draws about the same power,and it comes on an itx board,so it would be an easy swap.here's one from newegg that you might like.
    http://www.newegg.com/Product/Produc...82E16813153052
    Any sufficiently advanced technology is indistinguishable from magic - Arthur C. Clarke

  6. #26
    Variable Bitrate Moneyfink's Avatar
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    Quote Originally Posted by seanshine View Post
    Nice screen fabrication,looks o.e.m.
    Your boot time is about what it should be considering that via cpu is the equivalent of a p3 550.
    The amd geode cpu is much faster and draws about the same power,and it comes on an itx board,so it would be an easy swap.here's one from newegg that you might like.
    http://www.newegg.com/Product/Produc...82E16813153052
    It is TIGHT in my console where the MB is, I don't think that processor fan will fit in there.

    Im looking at getting a nano ITX and that would free up enough space for dual 750 GB SATA drives. Or go with a non-Via product that is mini-itx and run an external 1 TB hd in my console, + 500 GB SATA under the console with the MB.

    Do any boards have eSATA
    My OLD carputer page
    My NEW carPC



    Via Epia M10000, 512 PC2100, Opus 150, 8" lilly touch, 320 GB 7200 WD Caviar

  7. #27
    Constant Bitrate seanshine's Avatar
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    The heatsink on the Jetway is removable,and there are many smaller ones around,and looking at the specs it has pata and sata connectors,so you're ok there as well.
    I've always replaced factory coolers with a quieter one anyway,just make sure you use decent thermal paste on it like arctic silver 5.
    A nano? Well,I suppose you could save space with one,but,then you are back in the slow speed boat again,lol. Have you considered a firewire housing for an external hard drive? You'd be able to mount it anywhere in the car that has enough space.
    Any sufficiently advanced technology is indistinguishable from magic - Arthur C. Clarke

  8. #28
    Constant Bitrate moboman's Avatar
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    You could put 2 750's in the trunk. Use 2 external usb, sata cases that the powersupply that comes with the case provides 5v and 12v. You could then run power to the trunk along with a usb hub and then you would have your 1.5tb, but it would be out of the way. You could just use a laptop drive as your boot drive inside the console and have the 2 750s as storage in the trunk.
    My Worklog
    I'm using my carputer 100%, but I still need to make it easier to use.

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