After adding the 1000uf sanyo WG's on the output side, the card is now stable at lower voltage. It used to need 1.23v load for 756/1836, now 1.20v load is sufficient. They have had a positive effect
Thank you for that! I am definitely interested in capping my GS's now.. think I have a old ASUS mobo laying around here somewheres.. gonna check for some suitable caps.

*Thanks again Cryptik