GA 6vx7 4x

[kakayo]

Still working, just noticed that I have one burst and one bulging CHOYO cap. A 330uF 25V XR 105*C 45A and a 1000uF 10V HR 105*C 35A. Recomendations for new caps. I have a catalogue from which I can choose Vishay, Xicon or Nichicon caps, which company and which model type should I look for. for nichicon I have UVZ, UPW, UHE. the rest are kinda confusing. should I go for low esr, low impedance, lead free?

Any and all info will be greatly appreciated.

I also have a shuttle spacewalker 370, with most caps burst, but I believe that one to be beyond repair, it won't post and it leaks current through the system which gives a nice jolt when trying to work on the board even when its been disconected for a minute or so.

[Spacedye69]

Re: GA 6vx7 4x

Nichicon UHE first then UPW
UVZ not low imp. which you need

[kakayo]

Re: GA 6vx7 4x

UHE then, I have no idea which I need, I know the basics, but not the feature specifics, low impedance, low esr, no idea if any of those features are really needed.

UHE is low impedance, hi reliability, lead free.

[Spacedye69]

Re: GA 6vx7 4x

Are you looking at the Mouser catalog? If so, Nichicon UHE and UPW are the only ones they carry in 1000uf and up that will work. Just find size. Bigger volts and uf are ok(within reason) but not smaller. Best to match what is on the board now, unless not available, then go to next volt/uf up. Case size is important if they are going to be a tight fit, but if you have room, bigger case is probably better.

[kakayo]

Re: GA 6vx7 4x

yup mouser, but I found perfectly correct caps for all three models.


O I see, I re-read your original reply, I do need low impedance. and only UHE and UPW have that feature.

[Spacedye69]

Re: GA 6vx7 4x

Very pleasant company to deal with. :

[kakayo]

Re: GA 6vx7 4x

really, i've never ordered before.

UHE sounds fine I have 11 caps of 330uF, 5 caps of 1000uF, and 13 caps of 1200uF, all choyo, but only two visibly bad. I also saw one GSC 33uF 16V. and almost missed a choyo 22uF 16V. for now I'm considering changing out all the 330's and the 1000's, since they are the ones which had the bad ones. should I change the 1200's

[Spacedye69]

Re: GA 6vx7 4x

Yes, change 1200 also. Always change out all of bad brand above 1000uf. Since you have bad 330uf, of course you would change those.

[kakayo]

Re: GA 6vx7 4x

thanks for the info. I love that I could get this resolved the same day that I posted, thanks for the attention.

should I venture to fix the shuttle spacewalker 370, if its not posting and the current flowed through the case and components even after disconnected?

[Spacedye69]

Re: GA 6vx7 4x

Cant hurt..unless it is still plugged in!

[kakayo]

Re: GA 6vx7 4x

I unplugged it as soon as it gave me the jolt, when I was getting ready to pull the agp card. and even after unplugged it gave me a couple of lesser jolts minutes after.

[Per Hansson]

Re: GA 6vx7 4x

kakayo; it sounds to me that you run your computers without a proper mains ground

That is a really bad idea, a floating ground in a PC can cause all sorts of strange problems, because, as you have no doubt felt, the charge held can be quite significant...

[kc8adu]

Re: GA 6vx7 4x

I unplugged it as soon as it gave me the jolt, when I was getting ready to pull the agp card. and even after unplugged it gave me a couple of lesser jolts minutes after.

sure its not static zapping you?
could be pri-sec breakdown in the transformer in the psu but thats rare.
i would change the psu anyway.