it's been my experience that when replacing an 85C cap with a 105C cap, the ESR is slightly higher in a 105C cap than an 85C one. this is probably due to the formulation of the electrolyte. i have never seen the ESR of a new 105C cap to be outside the limits of what's usable, and it will keep it's ESR low longer than most 85C caps. there are specialized low ESR caps, but their body size is usually larger in diameter or length, and might not always fit in a crowded board, or cramped spaces in a unit case. the board shown in this thread is fortunately not very crowded, and with that transformer being so tall space doesn't seem to be an issue.nothing wrong wtith replacing faulty cap with low-ESR model and/or better temperature range.