ive been able to do RMA with EVGA with older cards without receipt they just go by manufacture date,
Also done one with asrock, manufacturer date as well
Ive had problems with a g604 mouse that i got off amazon about 6 months ago, im on my third one... first one had rubber peeling and left click switch problem, second one had rubber peeling problem, i'm on my third one, they just keep sending me mice...