pc issue.. should I be worried?
in [Repair]
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From: kronflux on 9 Dec 2009 14:44 I seem to be spamming my own messages. anyway. I've successfully unsoldered the bypass capacitor as mentioned before, which was internally arching(I confirmed that it was this, and not 'glowing red hot' persay) the PC boots perfectly fine, nothing seems to be exploding. so my final question is, will it be safe to leave it like this long-term, and still use the system for watching movies and whatnot, perhaps for many hours of up-time per day?
From: Baron on 9 Dec 2009 16:52 kronflux wrote: > okay, so I changed power supplies, and cleaned it. and turned it on. > within about 30 seconds, it started glowing again. I'm going to have > to assume this is a faulty bypass capacitor. that being the case, can > someone answer my question about that? > should I try to replace the bypass capacitor, unsolder it and solder a > bridge between the two leads, or unsolder it and leave it empty, with > two open leads? Take suitable anti static precautions and un-solder the part. Its a bypass capacitor and it has an internal short. Its also on the 5volt rail so if you do decide to replace it almost anything of the same physical size will do. Its value is not critical. Though I would guess around .1uf to .5uf. -- Best Regards: Baron.
From: William R. Walsh on 9 Dec 2009 17:00 Hi! > so just to be clear, I -can- remove this, and it -should- work > without replacing it? No, you'd better replace that capacitor. The designers of the board put it there for a good reason. If you just remove it, you may find out why when the board blows up or something on it fries. A new capacitor will be cheap. If you can find someone who is willing to remove and replace the old one, or if you already know how, this will not be an expensive fix. William
From: kronflux on 9 Dec 2009 18:25 not even sure where I'd find something like that around here. but I'll try to find one. I'm gonna leave it on for about 5 hours, sitting here watching it constantly, if it doesn't go nuts or blow up or whatever, I'm just gonna leave it like that. if I remember correctly, bypass capacitors are mainly to filter out AC noise, since most of the board's component's require DC power. and since the power supply is supposed to do a good deal of that on it's own.. I don't see how they are entirely necessary on the board. that's not to say I won't keep my eye out. if I find them somewhere, maybe the source(which used to be radio shack) ? I dunno. lets see how the next 5 hours go. I'm even installing windows 7 on it, for kicks. kind of push it to its limits :p thanks for the help guys, I really appreciate it.
From: kronflux on 9 Dec 2009 18:28
I might also add, I thought the thing was dead anyway at first, so I don't really care if it died or fries components. the only reason I'd be afraid of those is if it's a fire hazard, and that's also why I have a master cutoff switch for my house in my bedroom, as well as a fire extinguisher beside my bed. |