1. Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

9600gt defect

Discussion in 'NVIDIA' started by Aleksander, Apr 8, 2012.

  1. Aleksander

    Joined:
    Dec 2, 2009
    Messages:
    3,254 (1.93/day)
    Thanks Received:
    304
    hi!
    i am having trouble with a card my friend gave me to test
    the 9600gt
    he said to me to post a photo of a part he replaced and ask in forums
    so i will post here. also if anyone knows which is the name of the part
    that would save the day :toast:
    [​IMG]
  2. Aleksander

    Joined:
    Dec 2, 2009
    Messages:
    3,254 (1.93/day)
    Thanks Received:
    304
    I forgot to add that the card is asus!
  3. temp02 New Member

    Joined:
    Mar 18, 2009
    Messages:
    493 (0.25/day)
    Thanks Received:
    166
    I'm pretty sure that's a transistor, but the soldering job looks very bad, I mean, the PCB line that goes to the base of the transistor seems to be completely ruined.

    I might be wrong (I hope I am) but if the card doesn't work in its current condition it's going to be very difficult, at the very least, to fix it (remember, transistors come in NPN and PNP "format" so replace only with same part number).

    Good luck tough.

    Offtopic: OMG I walk by this everyday xD
    Aleksander says thanks.
  4. _ALB_R3D X

    _ALB_R3D X New Member

    Joined:
    Aug 10, 2011
    Messages:
    337 (0.31/day)
    Thanks Received:
    82
    Location:
    Tirana,Albania
    Don't know what the part name is but the soldering job looks like a mess...!
    If your friend wants a new card(he sure will)shoot me a PM
    Aleksander says thanks.
  5. Swamp Monster

    Swamp Monster

    Joined:
    Oct 22, 2010
    Messages:
    560 (0.41/day)
    Thanks Received:
    83
    Location:
    Latvia
    It is a diode as symbol "D505" indicates.
    Aleksander says thanks.
  6. Aleksander

    Joined:
    Dec 2, 2009
    Messages:
    3,254 (1.93/day)
    Thanks Received:
    304
    Ok, he told me that thing has 3 legs.
    He has fitted in there 3 times 3 diodes so this is why it looks like a mess.
    He doesn't know which diode is needed, so he looked at the others and bought one
    exactly like D504, or D503 and so on.
    But it looks like it is not like them!
    Which one it is?
    Or is it bad soldering?
  7. Black Panther

    Black Panther Senior Moderator™ Staff Member

    Joined:
    May 30, 2007
    Messages:
    8,558 (3.29/day)
    Thanks Received:
    1,911
    This.

    If someone gave me that card asking why it's not working without telling me that soldering work was done on it, I'd pin-point that diode and say that it looks blown/burnt.
  8. Aleksander

    Joined:
    Dec 2, 2009
    Messages:
    3,254 (1.93/day)
    Thanks Received:
    304
    Oh and the card works, but the problem is that it "crashes"
    So is it soldering again?
    Is it bad to try it out on the pc?
  9. Swamp Monster

    Swamp Monster

    Joined:
    Oct 22, 2010
    Messages:
    560 (0.41/day)
    Thanks Received:
    83
    Location:
    Latvia
    Sorry, I had not much time to explain in the previous post, but there are various possible configurations of diode arrangement in 3-pin sot23 body that you have there.
    Also there are different types of diodes for different purpose (Schottky diode and "common type diode" for example).
    I am not saying that it's not possible to repair your card, only that you may have to try out many configurations before you succeed.

    Here are one example of possible diode configurations in 3-pin body: http://www.farnell.com/datasheets/27632.pdf
    Aleksander says thanks.
  10. micropage7

    micropage7

    Joined:
    Mar 26, 2010
    Messages:
    5,564 (3.54/day)
    Thanks Received:
    1,272
    Location:
    Jakarta, Indonesia
    i guess not since its not connect directly to the power, but you may pay attention more when test it coz you dont know what would happen to the card
    i ever saw repaired card that soldered and coated with Cyanoacrylate glue :D
  11. SaiZo

    SaiZo

    Joined:
    Apr 21, 2011
    Messages:
    497 (0.42/day)
    Thanks Received:
    56
    Location:
    Hesperus IV
    I do not know what type of soldering iron your friend used, but that looks like a real mess.
    Suggest that he gets a proper soldering station, some ESD equipment as well. Some parts are rather sensitive.

    As I see, it looks like the soldering iron has burnt the diode. Usually the tip of the soldering iron should be rather small/thin, should look almost like the tip of a pencil.


    EDIT: Link - http://www.infidigm.net/articles/solder/
    This is a good link, I think it provides a good guide in soldering surface mounted devices.
    Aleksander says thanks.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guest)

Share This Page