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| Thread ID: 82762 | 2007-09-07 02:43:00 | Conductive Polymer Aluminum Capacitors | braindead (1685) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 588749 | 2007-09-07 02:43:00 | Anyone know if these new caps are available in NZ? I need to re-cap a mobo that has developed crap caps. JayCar don't have them (yet). Many thanks. |
braindead (1685) | ||
| 588750 | 2007-09-07 22:26:00 | Dick Smith | Speedy Gonzales (78) | ||
| 588751 | 2007-09-07 23:11:00 | Thanks - I found everything but conductive polymer caps at DS. :) | braindead (1685) | ||
| 588752 | 2007-09-08 08:50:00 | Plase forgive my ignorance, but. Why does it matter what type of capacitor you use? Thanks PJ :confused: | Poppa John (284) | ||
| 588753 | 2007-09-08 11:14:00 | Several years ago many motherboard manufacturers used capacitors that were faulty. After some time in use, these capacitors would swell and leak, with a brown deposit often visible on top of the cap. When these caps expired, they would frequently take the whole mobo down too. You can see more in-depth info here: http://www.badcaps.net/ These caps typically have low esr (Equivalent Series Resistance). Ordinary polarised electrolytic caps will not do. PC power supplies are affected too, as they often use these bad caps. You can see what the polymer caps look like here: http://www.low-esr.com/ Replacement of faulty caps on a mobo is tricky, but possible. When done correctly, the mobo can be given a new lease of life, rather than forking out for a new mobo. One or two mobo makers went some way to replace faulty boards. Most did not take responsibility and hid behind their warranty, leaving a lot of people out of pocket. HTH :) |
braindead (1685) | ||
| 588754 | 2007-09-08 11:22:00 | Jaycar have the low ESR caps. I used them to fix a Pentium 3 based mobo. Here's my posts about my particular mobo. www.badcaps.net pressf1.pcworld.co.nz |
bob_doe_nz (92) | ||
| 588755 | 2007-09-08 11:32:00 | JayCar do have them. I bought 2 lots from them at different times to fix two Soltek mobos, but they changed brands between the first and second lot. One brand is fine, the other crapped out quite quickly. I'll not be buying anything but conductive polymer aluminum capacitors from now on. No-one in NZ seems to stock them yet. :( |
braindead (1685) | ||
| 588756 | 2007-09-08 11:38:00 | RS Electronics? Farnell? |
bob_doe_nz (92) | ||
| 588757 | 2007-09-09 01:54:00 | Thanks for the links bob_doe...neither of these suppliers panned out with the cap specs I'm looking for.I'll keep hunting :) | braindead (1685) | ||
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