I sent in my coolermaster on warranty earlier this year after it died on me. Not knowing it was under warranty, I slit the sticker and pulled the PSU apart, hoping to find a blown cap or burned wire or something I could fix. Not finding anything, I put it back together and then researched it, at which time I realized it was under warranty. I got an RMA, sent it back, and they sent me another with no questions asked. I don't think it will be a problem.