Jetway 993AN with two busted GSC

[UraBahn]

As you can see I've a Jetway 993AN with two busted GSC RE-series 1000uf 6.3 volt caps around the VRM. The question I'd like to ask is, would it be alright if I use Rubycon MBZ 1500uf 6.3 caps in the place of the GSC? (Please note the difference in capacitance...)

Thanks,

urabahn5

[gonzo0815]

Re: Jetway 993AN with two busted GSC

In generall it is safe to use larger caps (in destinnct limmits). I think this should be no probelm there.

[Rainbow]

Re: Jetway 993AN with two busted GSC

And if there are any other GSCs, don't forget to replace them all. Sooner or later, they will fail all.

[UraBahn]

Re: Jetway 993AN with two busted GSC

OK, I replaced all but one of the 1000uf 6.3v GSC RE caps on the board with Rubycon MBZ 1500uf 10v caps. (I ran out of caps before I could get to the last one. Of course, I replaced the two busted caps.) I'm currently testing the board, it tends to flake out occasionally under Windows 98SE but that's only to be expected of an el-cheapo board based on a very old VIA chipset anyway. Once I get all the caps changed out I'll probably start seeing an improvement in stability.

Thanks for your help (again), guys.

EDIT: I forgot to mention, there are a bunch of GSC M-series general-purpose(?) caps all over the board. I'll probably try changing those out too once I get some more caps.

[UraBahn]

Re: Jetway 993AN with two busted GSC

My apologies for bumping this ancient thread, but what exactly does it mean when I see a _very_ slight (almost unnoticeable) amount of 'wavy' interference on the screen? Funny thing is, it only appears when I use a Slot-1 Pentium III 550 (Katmai core, 100MHz FSB). It goes away completely when I use a Pentium II 450 MHz or a Socket 370 Celeron. Do capacitors have anything to do with it, by chance?

Just out of curiousity, changing the Spread Spectrum around seems to have an effect on it - with S.S. off or set to .25%, it's very obvious, whereas with S.S. set to .05% it's almost unnoticeable.

BTW I got rid of that nasty old POW!Max. I'm running a Hipro 200W on it now which, despite its Fuhjyyu capacitors, seems to run more stably than the PowMax ever did. And yes, I think the interference was there even when I was using that old PowMax.

[arneson]

Re: Jetway 993AN with two busted GSC

I've seen that symptom a lot when two crt monitors are next each other or on top of each other.