Here's a more complete listing of manufacturers who have had/are having quality issues with electrolytic capacitors.
In case this site gets nuked, here are the listed manufacturers:
Commonly failed capacitor brands
- Tayeh (A brand that does not appear to exist, indicating the actual manufacturers were wary of putting their name on their product; and probably a fake of "Ta-Keh", a genuine maker of high-end capacitors for audio equipment, used by Denon) * Chhsi * Teapo (Teapo has denied these claims, and evidence suggests their new capacitors are sound, however their older ones appear to suffer from the same problems other brands do) * I.Q. * Rulycon (A clone of "Rubycon", a well-known manufacturer of high-quality capacitors, right down to the exact style of the cases and the fonts used for lettering) * JPCON * Jackcon (The only capacitor manufacturer to own up to their mistake; they are also the only one to issue free replacement capacitors to people who had theirs fail. Their new products appear to be of greater quality.) * JDEC * CTC * (G) Luxon (also G-Luxon) * Gloria * Raycon * Hermei * Choyo * GSC * Nrsy (only with X-shaped vents. The new NRSY capacitors have K vents and are a genuine, high-quality Nippon-made part.) * Fuhjyyu (found in Antec power supplies to this day)
As of May 2005, some evidenceshows that the failing Nichicon capacitors on the iMac, Intel, and Dell boards are due to a different problem (specifically, overfilling the capacitors with electrolyte) than the one discussed on this page (faulty electrolyte formula). However, the symptoms (both the effects on the system and the physical appearance of the capacitors) are the same as the other failing capacitors, as is how to identify them, and the required repair.
(I've actually seen a Dell P4 motherboard that had failing Nichicon parts!)