They look like Polymer Capacitors, why do you need to change them?

Surface mounted caps can be a pain to replace.
BUT I'm pretty sure those are :
1) 100uF 16V
2) 1200uF 4V
Replacements can have high capacity or operational voltage (or both), BUT they CAN'T be lower on voltage side (at risk of blowing up on first start or decreasing the longevity, depending on actual voltage difference between spec and actual operating voltage).
Lower capacity is an option if caps have way better other parameters, but at some point not having the capacity will limit their performance (because circuit itself was designed to have more).

1) 100uF 16v
2) 1200uF 4v

you can use higher voltage caps, with no problem...

Why do you believe that 'it needs recapping'? My guess is that it doesn't.

if you are having problems with your Asus V9980, have you examined the possibility of thermal issues?
those low profile copper coolers of that era with only 3 actual mounting screws are awful. i remember they started appearing on 5 series and early 6 series cards but, hey didn't stick around for long.
anyway, i have never been able to obtain solid cooler/gpu contact with the stock cooler on my Asus v9980.
somewhere along the line, i believe the engineers failed to take into account that these pcb's will tend to warp over the years due to all the heat.
getting good contact with the gpu with only 3 mountain screws and a warped board is almost impossible.

bloodem wrote on 2020-11-13, 18:28:

Why do you believe that 'it needs recapping'? My guess is that it doesn't.

I second that.

Sanyo SEPx series (Now manufactured by Panasonic) should still be fine after 15 years (which is now approximately the age of your card)... If you really insist on doing it, then the direct equivalent for the purple ones are part 4SEP1200M.

For the rest of the capacitors (which are electrolytic, eventhough they have no vent on top), any good quality electrolytic will do. Just match the diameter.

Sorry to all that responded for my delayed answers, I have been off the grid for a couple of months. The issue with the card is that somehow a couple of caps got knocked and the legs have pulled out a bit (the caps are looses a little bit, not on the board but the part of the lead that goes into the cylinder), though I pushed them back down, my guess is this ain't good so I probably need to fit some new caps.

Thanks for the help 😀

wirerogue wrote on 2020-11-13, 19:18:

if you are having problems with your Asus V9980, have you examined the possibility of thermal issues? those low profile copper c […]
Show full quote

if you are having problems with your Asus V9980, have you examined the possibility of thermal issues?
those low profile copper coolers of that era with only 3 actual mounting screws are awful. i remember they started appearing on 5 series and early 6 series cards but, hey didn't stick around for long.
anyway, i have never been able to obtain solid cooler/gpu contact with the stock cooler on my Asus v9980.
somewhere along the line, i believe the engineers failed to take into account that these pcb's will tend to warp over the years due to all the heat.
getting good contact with the gpu with only 3 mountain screws and a warped board is almost impossible.

Hi thank you for responding, yes the card gets extremely hot (my guess way over 100 deg C) and when it does I get artifacts, I have repasted everything and as far as I can tell the heatsink and fan are mounted OK, but now you said this I am going to check again.

I was going to try to underclock/undervolt the card by say 15% and see what that does, do you think the caps can be the reason for the card getting very hot?

Cheers

agent_x007 wrote on 2020-11-13, 18:12:

Replacements can have high capacity or operational voltage (or both), BUT they CAN'T be lower on voltage side (at risk of blowing up on first start or decreasing the longevity, depending on actual voltage difference between spec and actual operating voltage).
Lower capacity is an option if caps have way better other parameters, but at some point not having the capacity will limit their performance (because circuit itself was designed to have more).

This is not good advice IMO, higher capacitance is NOT necessarily a valid replacement. Neither is lower capacitance with tighter tolerance a great idea. Also, going way overboard with voltage rating can cause other issues (I experienced this when I replaced 16V caps with 1000V caps on a Snark Barker)