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Geforce 256 DDR missing parts

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First post, by Retronerd878

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Need some help with a schematic or if someone can tell me the values of the missing parts.

Front
C91:
C92:
C93: 10uF
Y2 (probably clock generator): 14.31818 Mhz Crystal
C107:
C121:
C122:
C117: 22 uF
C118: 10 uF
C119:
C207:
C31 (electrolytic): 330 uF

Back
C180: Not Actually populated on this card
C183: Not Actually populated on this card
C136: Probably 150 nF
C139: Probably 150 nF
C177: Not Actually populated on this card
C179: Not Actually populated on this card
C223:
R115: 220 kOhm
C158:
R106: 0 Ohm
C157:

Last edited by Retronerd878 on 2026-05-26, 09:12. Edited 1 time in total.

Reply 1 of 1, by Retronerd878

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I actually managed to identify some of the values. Other brands use SMD tantalum capacitors, so I was able to decode their markings. I also noticed that some parts are simply not populated on my exact card revision.

At this point, I’m mainly left with a few small SMD capacitors whose values I still can’t determine. Does anyone happen to know what they might be, or at least suggest some reasonable ballpark values?

Front: C91, C92, C107, C121, C122, C119, C207
Back: C139, C136, C223, C158, C157

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