i have two sticks of RAM (RAM-A: 128mb, RAM-B: 256mb, both DDR266, kinda slow but.. it's fine with me...). RAM-A is on slot one, and RAM-B is on slot 2. now, here's the problem.. RAM-B was replaced (waranty) 3 times already, due to failure with a week or up to a month between failures (what are the odds, three defective RAM sticks?)... now, i'm running the RAM-A on slot 2 to figure out who's really the culprit. it's running fine for a week now...

i'm tired of this... is it just bad RAM or the board has a bad SLOT? the motherboard and the RAM stick are still new and still in waranty... may be replaced anytime..

help me please?!

Most likely bad RAM or a sligh timing difference between them. You were correct to place the newer RAM in Slot A as it would use that first rather than the smaller RAM module.