Replacing capacitors

Discussion in 'General Chat' started by plucker, Aug 3, 2014.

Share This Page

  1. plucker

    plucker New Member

    Jul 28, 2014
    Likes Received:
    Hello there

    I currently have a HTPC in my bedroom, for me and the misus to stream movies from my server..
    Last night, the graphics card failed, i got just a black picture..
    (old Powercolor Radeon HD 4890 1gb)..

    I have tested all parts, and found its definately the gpu at fault..
    I have narrowed it down to the capacitors..

    I know a fair bit about electronics, and capacitance ratings etc..

    Checking over the PCB, there are two varieties of caps across the entire board...
    Some 1500uf 2.5v caps, and some 270uf 16v caps..

    Sadly, i dont have of those spare (i have every other one)

    But i do have some 1000uf 16v's and some 22uf 16v's...

    Would they work?? would it be ok to test??
    Or would it go bang or something, from having the wrong Uf capacitors on it?/

    many thanks
  2. Flash

    Flash Regular Kustomer

    Dec 21, 2002
    Likes Received:
    I wouldn't touch it as there multi layer boards, something like a graphics card you will need to swap like for like components

    for the sake of 10-15 quid its not worth the hassle is a standard or low profile card ?

    experience - 2-3 years as a tv and video engineer, 15+ years working with pc's and networks, comptia A+ and N+, city and guilds in electronics
  3. Archaon

    Archaon Eats, Drinks, Sleeps Kustom

    Jul 5, 2004
    Likes Received:
    If it's just used for streaming, my advice (subject to funds naturally) is to bin it and stick a £25 Radeon 6450 in it. Smaller, quieter, less power, less heat etc etc