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buying caps

Discussion in 'Electronic Repair' started by Al, Jan 28, 2005.

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  1. Al

    Al Guest

    I'm trying to fix a Gateway pc with bad caps on the MB. I managed to
    remove the bad ones ('Chhsi' brand name) and clear the holes.

    I need (3) 1000uF 6.3v HM(M) and (2) 1500uF 10v WG(M) electrolytic caps.

    I'd been believing the replacements would cost ~ $1 each. But the local
    parts supply place has the 1000uF for ~ $2, and they don't have the
    1500s. Radio Shack has the 1000uF 35v for $1.69, but they don't carry the
    1500s. Can I use a different value in place of the 1500s? Radio Shack
    does have 2300s.

    I don't live in or near a large city. Any suggestions? I'd thought that
    procuring the caps was going to be the one easy part of this project.

    Btw, can I use axial, if they physically don't interfere with anything?
    Do I have to worry about any other ratings and/or quality?
  2. Al

    Al Guest

    sorry, that's HK(M)... if that's important
  3. Dan

    Dan Guest

  4. Guest

    Don't use crap radio shack capacitors or you'll be back in the same
    boat you are now whithin 6 months. Don't use Xicon capacitors from
    Mouser either. Cap kits always use the cheapest crap capacitors money
    can be wasted on, don't use them either.
    I always order from Digikey, and use Panasonic FC
    series capacitors which are high temp, high frequency and won't go bad.
    There's a killing being made by selling $0.12 capacitors for $2 from
    these other sheisters. Order these from Digikey.
    1000uf 6.3v, part# P10199-ND $0.47 each
    1500uf 10v, part # P10228-ND $0.80 each
  5. Guest

    Not just any 105C capacitors will do because you also need low ESR
    (effective series resistance) or they'll likely run warm and wear out
    earlier. Electrolytic capacitors rated for high-frequency switching
    operation will almost always have low enough ESR. Get a good brand,
    such as Panasonic, Nichi-con, Chemi-con, or Sanyo.

    Spacing is so tight on motherboards that there usually isn't sufficient
    room since axials mounted upright have to be shifted over a few
    millimeters, and even radials 1mm larger in diameter than the originals
    may be a hard fit.
  6. mobo_nogo

    mobo_nogo Guest

    I'm having the same problem but with a p3 450 made by Packard bell. I
    replaced one 1000uf 6.3v cap with 1000uf 10v, and 1500uf 10v with same.
    I placed the motherboard back into the case and attached all the cards and
    cables. And still the computer will not start. Anyone out there Have any
  7. NSM

    NSM Guest

    Why did you replace the caps?
  8. James Sweet

    James Sweet Guest

    If it's a Packard Bell just junk it, they were worthless when new.
  9. Rono

    Rono Guest

    Apparently, the capacitors with the "X" on
    top, bulge, & the ones with just a line..on top
    leak at the bottom, & it's not always easy to see!
    Heat up each of the two legs of the caps, one at a
    time, & smell for "fishy" smell! It's the best way to tell
    in circuit! Rono.
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