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Thread: DSATX and Compaq D510 (Pinout converter?)

  1. #11
    Low Bitrate jjnit's Avatar
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    Heck yeah - up and running on the DSATX now.

    I just popped all the pins out of the old Compaq plug, and out of one end of the DSATX, and put the DSATX wires into the Compaq plug matching zootjeff's guesses on the pins.

    One other note for anyone trying to use the DSATX with this PC - the front control panel header is a ribbon cable instead of the typical header, so I had to cut pins 3 and 6 out of the ribbon cable and use them to splice into header (G) on the DSATX for power on / power off functions.

    Thanks for the clues on this one!

  2. #12
    Low Bitrate jjnit's Avatar
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    zootjeff - also thanks on this - I just realized that you are apparently the creator of the DSATX? So cool to have your help on this one.

    One other question aimed at you - since in splicing the wires on this doesn't include a "PWR_OK" pin, is there going to be an issue with the DSATX possibly getting confused as to whether the PC is on or off? Or will it be able to remember state information from itself or maybe see whether voltage is being supplied on the other rails?

    Thanks

  3. #13
    FLAC
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    Quote Originally Posted by jjnit View Post
    zootjeff - also thanks on this - I just realized that you are apparently the creator of the DSATX? So cool to have your help on this one.

    One other question aimed at you - since in splicing the wires on this doesn't include a "PWR_OK" pin, is there going to be an issue with the DSATX possibly getting confused as to whether the PC is on or off? Or will it be able to remember state information from itself or maybe see whether voltage is being supplied on the other rails?

    Thanks

    No the Power OK is an output from the DSATX. Some motherboards use it to turn on stuff only after it goes high. Others just wait the 200ms or calculate it themselves.
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  4. #14
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    Compaq d510 usdt carpc (m2-atx)

    I have finished my carpc. I am useing a compaq d510 usdt, witch has a 12pin plug. all info above in previous posts (from what I read) is correct. I how ever wired a M2-ATX power supply to mine. I removed the old AC/DC power supply, to make room for the M2-atx unit. going from the 20 pin standard atx wire to the 12 pin was a snap! (all the leads are labled on the inside of the 90watt compaq power supply) All I did was wire the leads from the atx side to the side of the 12pin that all matched. I left out the fan_cmd wire off the compaq. (I just hard wired a standard fan in on a 12v lead from the M2-ATX) everything works Great! I even can use Wake-On-Lan, that tells me I wired the stand-by power correctly. I had to solder the white 'switch' wire (Jumper9 on the M2-ATX) to the back of the power switch on the compaq. as this PC does not have a mother board mounted plug for a switch. I added a few more little helpfull mods to the whole thing to clean it up, and to keep it all tight and neat. I can post pics if anyone wishes!?


    CarPC:

    Compaq d510usdt 2ghz 256mb RAM DVD/CD Burner MultiDrive, 40GB HD
    Dlink Moble wireless G router/AP/Client (used for a Lan bridge)
    Dlink airG wireless USB
    Lilliput 8" widescreen touch screen
    USB GPS unit
    mini keyboard
    offtable trackball mouse
    Motorola USB cellphone hook up for Dial-up

  5. #15
    One Sharp Cheddar ThunderStick's Avatar
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    Quote Originally Posted by offrotor View Post
    I have finished my carpc.... I added a few more little helpfull mods to the whole thing to clean it up, and to keep it all tight and neat. I can post pics if anyone wishes!?...

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  6. #16
    Newbie flomas's Avatar
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    Post pix Please

    Hi offrotor,
    I have a EVO d500 that has the exact same PSU and I want to wire a M1-ATX to it, I have posted several times and no one even came close the information you posted, Thanks a bunch, I would like to see some pix of the psu and how you have it connected right now. I read from your post you just popped the ones out of the 12 pin and wired the M2 with the sides that matched, unless I'm reading it wrong.
    Can it be that easy? you said that the info is inside the PSU (compaq) I'll guess I'll have to crack it open, So. How many wires do you actually have connected from the M2 to the 12 pin? Please submit some pix of your setup I would greatly appreciate it..

    Thanks!
    Flomas
    Previous posts on this subject:
    Compaq D510 SFF Power Supply replacement
    My issue is towards the bottom I have another post but no one responded to that and this one was originally regarding a 14 pin compaq PSU.
    thanks!

  7. #17
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    m2-atx to 12pin compaq

    I will up load pics soon.. (I will do so when I transfer my PC from the truck to van this weekend.) But I can tell you, YES, its that easy. you dont even need a multitester. (though, not recomended!) If you open up the 90watt PSU that comes with the compaq, (carefull, it is an OPEN PSU now!!) you will see every wire going to the board, and writen on the board it will tell you what it is. (as mentioned in another post, you will have to look under the white Goo in some places...) I just used two ATX plugs (with ample wire attched to each), cut from 2 dead stanadard ATX psu's. All I did was use a standard ATX pinout (found online with a simple search) and the info gathered from the Compaq PSU to determin the pinout of the MoBo, And wire only what is needed FROM the ATX (20 pin side) TO the 12 pin plug. A picture right now would say a 1000 words.. I WILL have a pic soon. the only pin (wire) I did'nt end up connecting was the FAN_CMD wire. I just hard wired a fan in, and ran it off 1 of the 12v wires from the M2-ATX. A standard 20 pin ATX plug will plug into the 12 pin socket on this MoBo, It will just be off set.

  8. #18
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    12pin PSU

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    No Secret behind the red electrical tape, just solder+Heat shrink. its nice how the 20 pin plug, plugs onto the 12 pin socket, just off-set to one side. That way I can keep my stock compaq PSU in tack, for in house/later use! if requested I can take a more detailed pic of ANYTHING.

  9. #19
    Newbie flomas's Avatar
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    That's awesome.. Thanks for the pix, puts everything into perspective, I feel confident in doing my crossover now.... Thanks again.. Awesome idea about not hacking up the original PSU 12 pin plug.

    Thanks!!

    Flomas

  10. #20
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    Do you have the pin outs for the above wiring that you have done there I know it's an old post but it is relevant to me right now as I have 2 d510's sat on the workbench ready to be hacked up and mounted in the car just need a definitive pin out to convert from M1 atx to the stupid 12 pin Compaq connector.

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