Re: Dell Dimension 8400 V-Core caps
8400 motherboards are probably THE worst to recap. As far as I can tell, between the two outside layers of copper, is an internal layer of metallic super cooled hydrogen. The only thing I've found that works well with this guy is TWO soldering irons at the same time. I have a 65 watt Weller as my usual iron, but when working on an 8400 board I rig it up with a couple pieces of 28ish gauge wire to either my 45 watt Weller or my other 65 watt Weller so the two tips are physically touching each other. Even then I have to set the temp to over 700 degrees for it to reliably melt the solder on the Vcore caps in anything under 20 minutes. I remember the first time I did an 8400 I thought there was something wrong with my iron.
BTW, on 8400s I either polly mod with 10 560UF 2.5V pollies, or replace all electrolytics with 1800UF 6.3V Panny FLs. A couple times I've done polly on both ends, polly in the middle and FLs on all the rest, never had one come back, and never had one fail 48hr Prime95.
Originally posted by bw1
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BTW, on 8400s I either polly mod with 10 560UF 2.5V pollies, or replace all electrolytics with 1800UF 6.3V Panny FLs. A couple times I've done polly on both ends, polly in the middle and FLs on all the rest, never had one come back, and never had one fail 48hr Prime95.
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