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USB lead to connect to motherboard has no colours

I have just bought an internal USB Card Reader, and the lead to connect the device to the motherboard has no colours on the individual wires - (this is a Sumvision Internal (drive bay) USB Flash Card Reader/Writer, which has no product code on any of the packaging or the manual!) The two identical ribbon cables to connect the device to the motherboard are all white, each with different markings. The manual simply gives the motherboard wiring diagram and says "connecting up shouldn't be difficult to tell". The five wires have the following markings 1st (or 5th!!) - small squares spaced at wide intervals along the wire. 2nd (or 4th) short oblong strips along the wire. 3rd wire - crosses along the wire. 4th (or 2nd) one inch (approximately) long lines along the wire, and the 5th (or 1st) no markings, but some text, which is small and indistinct, but some of which seems to read "200v PTI". Can anyone decode these symbols and relate them to the standard USB colours of red (or +5v), white (or Data-), green (or Data+) and black (or GND)?

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  • chrisdesford May 26, 2010

    Whilst this first response tells me about the motherboard side, it does not tell me about the cable. I know that putting the lead in the wrong way can fry the motherboard, so I need to know which end is which on the cable "plug". There are no markings on the plug either, by the way - I've never come across that before. If this wire "coding" is not known, is it possible to use a multimeter to test which pins on the USB socket (i.e. outside the computer) connect to which wire on plug for the motherboard? (and not while the computer is on!!)

  • chrisdesford May 26, 2010

    I didn't get to solve the problem, but Andrea was helpful in offering several tips

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Hello

Ok, you need to have a look at the connector head itself which need to be plugged into the motherboard. Once the card is plugged into the motherboard slot, you can actually connect the cable to any compatible port on the motherboard itself.

Please do not hesitate to let me know if you have any further questions.

Kind regards
Andrea

Posted on May 26, 2010

  • Andrea Lock
    Andrea Lock May 26, 2010

    Hello

    Well, as i said, the cable input ports on the motherboard itself is standard, hence, if it is a 5 pin plug, and there is an open 5 pin port on the motherboard, it should work. I live in South Africa, and bought a TV card few years ago, i had the exact same problem, and had to contact Philips to find out what exactly the coding meant.

    Their reply was as i have mentioned above. I was a bit lenient, but, i plugged it in, and it worked perfectly.

    I can not find any customer support or contact details for queries accept for this one link, i can contact them for you, or you can do it yourself. Click HERE to navigate to link.

    As i said before, please do not hesitate to let me know if you have any further questions.

    Regards
    Andrea



  • chrisdesford May 26, 2010

    Thanks Andrea,

    I'm not sure I want to risk plugging it in the wrong way - several sources say that would mean the end of the motherboard if it was the wrong way round! Like you say, there's nothing out there in the way of guidance - Sumvision don't have any support system at all on their site.

    In terms of the markings, all five wires are creamy white, but have different markings on them - which must have a meaning, but without the "code" to make sense of these, I'm none the wiser. I'm amazed that there is not a system to make sure that you can't plug in the wrong way round - given the risks. (there would be a way if the plug was a nine pin one - but with two fives . . . . )
    Anyway, thanks - I think I will have to wait and see if anyone out there does know about the markings
    Chris


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The usb plugs are numbered for 2 usb on a plug like this
2-4-6-8-10
1-3-5-7-9
where the number one ..is the first ..and it is located at the edge of the motherboard..
in our case...a usb single port will be 2-4-6-8-10 where the 8 is the ground ..and 10 is just the over-current and common for both on the plug ( usb ports )and 9 (last in the right internal side) is the no pin ....one ..
so ...
so you have to plug that "thing " in either the usb 0 port or usb 1..so follow one of the lines..2(1st) 4(2nd) ...10(5th)
or the other one ...but with the 10(5th) not with the 9 cause that one is no pin one...
Practically numbered from the left to right with one at the left edge and numbered in criss-cross ..will be the way ..but cause we only need to port it in a usb ..just follow one line ..the usb 1..from the pin 2 ...10..the internal line from left to right ..one by one ..in order..with the 5th being the over current

Posted on May 25, 2010

  • 2 more comments 
  • Catalin Turcu
    Catalin Turcu May 26, 2010

    I just said that the usb are from number 1 3 5 7 and from 2 4 6 8 with 9 as a pin out ..and 10 as ground.. and cause you asked how to insert those numbered one ..I assumed that you understood that they came in order...
    1- usb power 3usb 0 port negative 5 usb 0 port positive 7 ground 9 (no pin)
    2 - usb power 4 usb 1 port negative 6usb 1 port positive 8 ground 10- overcurrent signal
    this is the configuration for the usb ..and now I will look for the colors and just match them no matter in what port a 0 or a one channel in a usb port the numbers of the pins are from left with the 1 in the edge ...and 2 in parallel and 3 near one and 4 in parallel and so on..
    these are teh usb color codes
    and probably it will match the colors from that plug ...
    USB 1.x/2.0 cable wiring Pin Name Cable color Description

    1 VCC Red +5 V

    2 D− White Data −

    3 D+ Green Data +

    4 GND Black Ground


  • chrisdesford May 26, 2010

    Thanks for your second response. However, the problem with the ribbon cables is that there are _no_ colours on them, as I said in my original posting. I've searched the web to try and find any reference to this peculiar system of marking, but with no joy.

    As you say, the motherboard socket has nine pins and these are in two rows. The two ribbon cables, each identically marked, has a five pin plug to go into the mother board. Either of them could go in either row (which I know wouldn't particularly matter) and either way round (which I know would matter) Both of them have five wires going into them, and with the unknown coding marks on them it is not possible to know which way round they would go.

  • Catalin Turcu
    Catalin Turcu May 26, 2010

    you said something about the marking ...but I didnt understood exactly ..cause you had been not clear ..if it has numbers than the issue is clear..put the 1 at the 2 usb pin and the rest will follow..cause in a usb line ..only the 2 4 6 8 10 is a 5 pin line ...cause the other is the one with 9 witch is the no pin one ..even if it is there ..it is not actually used..it just marks the way it supposed to be plugged..and the 10 pin is the only one that is the over-current one ..just try it like I said ..and there will be nothing happening ..cause if it is in short all that can happen is will not power up..not boot ...and in this case just change direction of teh cable..but ..my suggestion is to take a careful look at the plug of the exit from the card reader..and see what is written there ...even open it from the screws and look inside if it is the case..and see where the first one goes of each ..if it goes ro power line ..that end is the 5+ so it will pair with the pin 2 on the mo bo..

  • Catalin Turcu
    Catalin Turcu May 26, 2010

    My advice is to take in mind the second line ..the one that includes the 10 pin for the over current..and as long the computer is running just insert that like I said..if you inserted it in the wrong way ..in the moment you touch the pins the computer will shut down suddenly ...with no wornings like in a power out ...and you will know that is the other way and with a marker make a sign..There will be nothing wrong with it..probably will resume the os ..and ask for the last know configuration that worked..like in a unplugging from the power cord..
    and just inser *** the other way if it shuts down ..and will work ..there are only 2 possibilities and the chances to be like I say are 80% if they are numbered with 1 in a side and 5 in the other ..and you respect this in the plug at the reader..
    so ..just plug it ,,and if it shuts down ..put it the other way around and will work ..


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