what caps are these?

[WeStSiDePLaYa]

i need to know what caps these are, and if they are any good quality. im looking to replace them with higher capacitance ones. also, is the cirlced area a place for a capacitor? any thoughts on replace this with a small aluminum can cap? anyone see other spots to add caps possibly?

[willawake]

Re: what caps are these?

where it says C its a cap. where it says R its a resistor.

[WeStSiDePLaYa]

Re: what caps are these?

but what about the value of the other caps? they have 1200 and 1500 on them, im guessing thats uf. but how do i figure out what volts? google gives me nothing.

[willawake]

Re: what caps are these?

nichicon UD series
Y1 - lot number
1500 = 1500uf, j = 6.3v


oscon svp
1200uf 4v

[gonzo0815]

Re: what caps are these?

In the circle seems to be an ceramic cap, i wouldn`t replace it, due to the fact that larger al Elektrolytic can`t filter or bypass high frequenzy noise. The other caps could be replaced, but i would take some oscons as those are better suited for high temperature and ripple currents. But may be ist is difucult to get some with high voltage and capacity.

[WeStSiDePLaYa]

Re: what caps are these?

hmmm..... thanks for the info guys, maybe i could solder some electro caps in parrallel to the main caps.

[willawake]

Re: what caps are these?

what about working with the power coming in off the molex? put some caps between the psu and the card.

how do these cards work anyway, do they still take power from the agp or just the molex or both. do they take only the 5v off the molex?

[davmax]

Re: what caps are these?

The caps shown are good quality. Why do you want to replace them or add others in parallel?

What problem makes this necessary?

[linuxguru]

Re: what caps are these?

I'll second Davmax - there's nothing visibly wrong with the large SMT Nichicons. OTOH, there seems to be a component (probably a regulator or power IC) that burnt or soldered itself off above the Y6 oscillator - what was that and why did that happen?

[WeStSiDePLaYa]

Re: what caps are these?

I'll second Davmax - there's nothing visibly wrong with the large SMT Nichicons. OTOH, there seems to be a component (probably a regulator or power IC) that burnt or soldered itself off above the Y6 oscillator - what was that and why did that happen?

there was never anything there to begin with. there is alot of missing components because the manufacturer uses the same pcb for the x550, as well as 256mb versions.

@davmax,

the problem is i need more speed. if replacing caps, or adding caps will give me another few mhz, i will do it.

@willawake,

good idea, what would you suggest for caps? and would inductors be usefull at all? (lines may be screwy since i have a pump in the case.)

and they draw of agp slot, 5v line, but draw mostly from 12v line. probably at least 4-5 amps on the 12v line.