Help identifying SMT caps - GeForce 7900GT

[Asuga]

First of all, here is the exact card in question, with the caps circled.
http://www.isarapix.org/pix9/1227899373.jpg

The information off the top of these SMT caps reads as follows :

BP
100
ETZ

Now the problem isn't so much that the caps are bad, but that the previous owner of this card did not check clearance in the board before pushing it in, and as a result both smt's were snapped off.
I still have them (though theyre all but useless at this point) so i can confirm that the above code is correct.

I've cleaned off the pads and removed the original legs that were soldered in place still, and it's basically ready for a new set of SMT's to be working fine again, problem is i can't seem to track down what exactly these SMT's are, i'd be greatful if someone here could shed some light on to the matter

Even more useful would be if i could find out what the specs for them are, and located a suitable replacement on http://rswww.com

Thanks in advance, i'll be back a few times a day to check up on the thread and answer any questions you might have about them that could help with identification.

[kikkoman]

Re: Help identifying SMT caps - GeForce 7900GT

these are Rubycon TZV series, 25V 100uF.



from what i can tell by the silkscreen, through-hole components should work in both locations.

[willawake]

Re: Help identifying SMT caps - GeForce 7900GT

i dont think these caps are too significant to worry too much about specs. just use the lowest esr available to you
i see on the photo provided they have made possibility for smt or thru hole caps in those positions. so you have option

i think they are 100uf
most importantly is the voltage which would be either 4v or 16v depending on whether they are on the input or output.

BP
100
ETZ

is not helpful to me for the voltage

if you use 16v then no probs, if you use 4v or 6.3v etc and that is 12v input then they pop,

really need a pic of a different card with different caps in those positions which may help identify the voltage

once we find that this is easy fix

edit : oops too slow, good find indeed kikkoman

i think 25v over spec, likely to find max 12v on input

[Asuga]

Re: Help identifying SMT caps - GeForce 7900GT

Amazing work guys, i totally appreciate it!
Now knowing exactly what they are looking at it from a repaiting point of view, i think i'd be much more comfortable using the thru hole caps, not to sound lazy but could you maybe suggest some i could order from rswww.com (i'm from uk)
As i'm not entirely familiar with the ESR side of things when using different type caps.

Again, thanks a lot!

[willawake]

Re: Help identifying SMT caps - GeForce 7900GT

yeah i would probably go with the panasonic fm
http://uk.rs-online.com/web/5261430.html if you want radial lead and not smt.
those are 6mm

personally i would replace with 470uf 16v just for the hell of it (a better cap but only experiment would tell if its of benefit to the circuit)
http://uk.rs-online.com/web/5261389.html but that would be experimental. those are 8mm

[Asuga]

Re: Help identifying SMT caps - GeForce 7900GT

yeah i would probably go with the panasonic fm
http://uk.rs-online.com/web/5261430.html if you want radial lead and not smt.
those are 6mm

personally i would replace with 470uf 16v just for the hell of it (a better cap but only experiment would tell if its of benefit to the circuit)
http://uk.rs-online.com/web/5261389.html but that would be experimental. those are 8mm

Thanks, i'll give the radials a try, they should work fine, as for the experimentals i don't think it's really needed, the old caps were broken off my the previous owner, it's not really like the caps failed under normal conditions or anything.
Will order tomorrow or money and let you guys know how it worked out.

Thanks a lot for the advice.