Last october I built myself a new PC with a V750, and it's been running flawlessly.
Yet, last week, something started to make a rattling / grinding noise. After some investigation I narrowed it down to my PSU. I have it mounted at the bottom, fan-side down, as it's supposed to be (Fractal Design S). If I tilt the case, the noise gets a little bit louder, until a certain point, and at a certain angle the sound stops.
I tried looking inside the PSU with a flashlight (through the ventilation holes and the fan grill), no wire seems to touch it, and it also doesn't seem to grind against the casing. I tried mounting it fan-side up, and it's completely silent again (checked it; fan running). So I'm pretty sure it's a faulty bearing.
Although mounting it fan-side up does kinda solve the problem, it's now taking in air almost directly from the graphics card, which isn't optimal. I don't know what the dangerous temps are for a PSU, and I don't want to find out. It's probably fine, but the cable routing is worse now, and I'm not too happy about the PSU drawing in hot air.
So, after some browsing, I found out about the glorious V-Series Replace service, and I was wondering if this is a valid reason for an RMA? I've put a lot of attention (and money) towards a silent PC, and having the fan running louder than it needs to (mounted the wrong way around) or having that annoying grinding sound (mounting it the right way) isn't why I spent a little more on a good PSU...
Thank you in advance for answering! Also, ask away if you want to know anything else.