Understanding capacitor ratings

[Byte_76]

Hi, I have some capacitors that I need to replace on a graphics card.

I've attached pictures for reference.

Please help me to understand the ratings so that I can order the correct replacements:

1. G7 560 2.5E - I believe these are for vcore

• Is this 560uF and 2.5V?
• What does the "E" mean?
• Is there any relevance to the "G7"

2. ECX 17 560 2.5V - I believe these are on the memory phase

• Another 560uF at 2.5V?
• This is on the same graphics card. If the caps are rated the same as those above, why are they a different type?

3. G7 270 16E

• Is this 270uf and 16V?

4. F7 560 6.3Z

• Is this 560uF and 6.3V?
• Is there any relevance to the "F7"and 'Z"?

5. What are the typical ratings and package size for the tiny SMD capacitors next to the ram?

6. In general, for the SMD capacitors and resistors on graphics cards, can anyone recommend a sample book that has a mix of the most common SMD components?


Thank you

[aurgathor]

G & F may be used to indicate tolerance (2% & 1%) but I don't think that's the case here. Your capacity and voltage guesses look correct for 1..4.

As for the typical ratings for those small SMD caps -- see if any one of them has some kind of marking. Alternatively, if you have a capacitance meter, you can desolder some and measure them. My guess is that most of them, are probably in the 10 nF to 100 nF range.