Dell Dimension C521 Front-Panel

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  1. Posts : 8
    Windows Vista 32bit Home Premium OEM DELL
       #11

    I failed with the Headphone and Mic thing. I used this Desktop Boards — Front panel audio header pinouts and my Frontpanel Audio/Mic (your diagram), but i can't get it.

    I think this is not the same pinout, how do I trace them?

    Greetings

    Sven
      My Computer


  2. Posts : 8
    Windows Vista 32bit Home Premium OEM DELL
       #12

    Ok guys, my bad. I thought my old E521 had HD Audio xD
    But in fact it's AC'97...Front audio problem solved...USB is still missing, waiting for the right USB cable. Giving feedback soon...
      My Computer


  3. Posts : 8
    Windows Vista 32bit Home Premium OEM DELL
       #13

    BDRichardson, i'm sorry, but i don't understand the USB issue on your diagram. I've got the usb mainboard connector, the usb extension cable and my frontpanel...Don't know where to put the cable on certain frontpanel pins. Maybe you can help me...

    Greetings
      My Computer


  4. Posts : 8
    Windows 7
       #14

    USB Connections


    The mainboard connector has pins for two USB ports. I have labelled them USB1 (pins 1 to 4) and USB (pins 1 to 4). I drew a simple diagram of a USB plug/socket so that you can trace the correct pin from a socket or plug, to the correct pins on the mainboard connector. There may be some standard colours for the wires, but I do not know them.

    The only problem I experienced was that one of my USB ports was faulty, and seemed OK until I attempted to connect a device, and Windows would then misbehave! So I just have a dead USB port on the front of my case.

    If the point which you are trying make, is that you are unsure of how wire up the front USB ports, then you need to take the correct wires for each USB from the mainboard connector, and connect them correctly to a standard USB header. From my experience, standard ATX motherboards all have the same standard connectors for connecting each of the your additional ports, i.e. front ones from case. The following link might help clarify this point for you: Installing Frontal USB Ports | Hardware Secrets.

    By all means, ask me some more questions if we still aren't understanding each other.
      My Computer


  5. Posts : 8
    Windows Vista 32bit Home Premium OEM DELL
       #15

    I would like to know what's VCC, D+, D- , GND for USB1 and USB2. In your diagram, it's described as USB, USB1 and USB2 and pin 1 to 4. I don't understand your diagram in this way (without descriptions).

    Greetings Sven
      My Computer


  6. Posts : 8
    Windows 7
       #16

    They are the standard wiring identifiers (pinout) for each of the four wires , i.e. 5V, Data Negative, Data Positive and Ground. This is explained better here: USB - Wikipedia, the free encyclopedia. It is a straightforward task of wiring each terminal of the USB socket to the each corresponding wire of the mainboard connector.
      My Computer


  7. Posts : 8
    Windows Vista 32bit Home Premium OEM DELL
       #17

    Hey guys, i was busy with my front panel and i traced all important wires. BTW BDRichardson it was no surprise that i didn't understand your diagram, cause it's not the same!
    Here is my one.
    Thanks for your help anyway!

    Greetings Sven
    Attached Thumbnails Attached Thumbnails Dell Dimension C521 Front-Panel-dell-dimension-e521-frontpanel-40pin-pinout.jpg  
      My Computer


  8. Posts : 8
    Windows 7
       #18

    Oh well, there you go. Dell threw some more complexity into the equation. At least you got there in the end. For those few mad enough ones (like us) it was a little challenge, despite the slightly scrappy solution, but at least it works if you put some effort to it.
      My Computer


  9. Posts : 5
    Windows 7 Pro 32 bit
       #19

    Appearntly, enough that I dont understand that diagram posted . Im tring to test wether the board works or not but, I cant seem to get the power button connected right . I dont see how you can have the positive at one pin an the ground at another. Unless your not useing two pin connectors. Not sure if the heatsink matters or not. I want to do something with this unit. E521 Also, I found it helpful spite not getting it working yet.
      My Computer


  10. Posts : 5
    Windows 7 Pro 32 bit
       #20

    I see what I was doing wrong know. Do I still need a heatsink in order to start the thing or not. I really want to make this into my next desktop pc or somethin.
      My Computer


 
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