Newer G3 Upgrade - Missing Capacitor Values

Phipli

68040
I picked up a 300MHz Newer Technology G3 upgrade (the type that goes in the CPU slot on an 8600 etc.). Unfortunately it looks like it has had a bit of a rough life and three capacitors have been knocked off.

Photos attached at the end of the post, but basically while it might just work without, for stability and piece of mind, I'd prefer to replace the missing capacitors.

The capacitors of interest are C63, C67 and C82.

Does anyone have a similar card (Same PCB, same speed ideally, but most if not all the caps will almost certainly be the same on other speeds with the same board)? If so, would someone be able to take measurements of the capacitors on their card? Alternatively, I could take the measurements myself if someone in the UK was willing to loan me a card (if your card is also missing different caps, I could use mine as reference and replace them for you :) ).

Realise it is a long shot, but hopefully someone can help out.

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I have what looks to be the same Newer Technology G3 upgrade card but at 250MHz. Your missing caps look the same as the other unmarked brown caps that are used all over this board. I think they'd need to be desoldered to measure the capacitance for sure but maybe they are "standard" decoupling capacitors all of the same value? I think I've seen 0.1uF 50V come up as the value for decoupling capacitors on RAM SIMMS, maybe same here?

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I think they'd need to be desoldered to measure the capacitance
Yes, that's correct. Plus the right type of meter.
but maybe they are standard decoupling capacitors all of the same value
In this context that's unlikely - some / many will be, but not all of them. For example, see how some are a different size? That implies that they're significantly different in spec, either voltage or capacitance, to each other. Then even within a specific physical size, some will be different.
 
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