10 Feb
2003
10 Feb
'03
2:04 a.m.
Hey all,
Awhile ago there was a thread about electrolytic capacitors popping and
then destroying the motherboard they are on. One of the ideas was to
replace them before they go.
Now I was wondering about another idea... Would it be okay to encase
the capacitor in silicone gel? Then when the capacitor pops, it wouldn't
spread its electrolyte all over the motherboard.
But would this cause other problems with heat or something? Would it
further shorten the life of the capacitor?
Cheers,
Bryan
10 Feb
10 Feb
2:36 a.m.
The caps leaking electrolyte wasn't as much of an issue as the shorting
of the caps and causing other problems. At the best it was random
reboots, at the worse it was total destruction of the VR section of the
motherboard releasing much magic smoke and propelling pieces of the
regulators all over the case interior. Not to mention toasting the cpu
and memory simms.
We never attempt to repair them, just replace them. When a replacemnt
motherboard only costs $45-60, the tech time cost is higher than scrap
snd replace.
James
Bryan Pope wrote:
Hey all,
Awhile ago there was a thread about electrolytic capacitors popping and
then destroying the motherboard they are on. One of the ideas was to
replace them before they go.
Now I was wondering about another idea... Would it be okay to encase
the capacitor in silicone gel? Then when the capacitor pops, it wouldn't
spread its electrolyte all over the motherboard.
But would this cause other problems with heat or something? Would it
further shorten the life of the capacitor?
Cheers,
Bryan
3:17 a.m.
Good point. I've also wondered about those in my older Macs, my 128D
and my NeXT's. But I seem to think that the older caps are of better
quality than those produced today.
James
Bryan Pope wrote:
And thusly James Rice spake:
We never attempt to repair them, just replace
them. When a replacemnt
motherboard only costs $45-60, the tech time cost is higher than scrap
snd replace.
I was thinking more of motherboards that aren't being made anymore, like
the 128D.
Bryan
3:25 a.m.
And thusly James Rice spake:
Good point. I've also wondered about those in my older Macs, my 128D
and my NeXT's. But I seem to think that the older caps are of better
quality than those produced today.
James
Check out this Sunday's Dilbert... :)
http://www.dilbert.com/comics/dilbert/archive/images/dilbert2003020522589.g…
Cheers,
Bryan
4:50 a.m.
Bryan Pope wrote:
Hey all,
Awhile ago there was a thread about electrolytic capacitors popping and
then destroying the motherboard they are on. One of the ideas was to
replace them before they go.
Now I was wondering about another idea... Would it be okay to encase
the capacitor in silicone gel? Then when the capacitor pops, it wouldn't
spread its electrolyte all over the motherboard.
But would this cause other problems with heat or something? Would it
further shorten the life of the capacitor?
Also chlorine as found in water, can distroy caps very quickly if got
inside. Ben.
5:04 a.m.
New subject: Electrolytic cap 'protection'
Bryan wrote:
Now I was wondering about another idea... Would it be
okay to encase
the capacitor in silicone gel? Then when the capacitor pops, it
wouldn't spread its electrolyte all over the motherboard.
Won't that make it harder to replace the capacitor when it does fail?
5:18 a.m.
New subject: Electrolytic cap 'protection'
And thusly Eric Smith spake:
Bryan wrote:
Isn't there a little bit of clearance from the cap to the board? This could
give you enough space to remove it...
(But if it blows up like what was said a few messages ago, it may not matter)
Cheers,
Bryan
Now I was wondering about another idea... Would
it be okay to encase
the capacitor in silicone gel? Then when the capacitor pops, it
wouldn't spread its electrolyte all over the motherboard.
Won't that make it harder to replace the capacitor when it does fail?
7940
days inactive
7940
days old
7 comments
4 participants
participants (4)
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bfranchuk＠jetnet.ab.ca -
bpope＠wordstock.com -
eric＠brouhaha.com -
jrice54＠charter.net