I have these two lights on top of my Raidmax X902 case next to the IO, one is blue and the other red. I have seen that the red light keeps on blinking forever, is it an issue?
Nope, not an issue at all. The blue light is probably for power, the red light is a hard drive indicator. When files are loaded from your hard drive (or SSD), that light will blink.
Absolutely fine, nothing to worry about. I forget they're even on my case, and chose to leave HDD LED cable disconnected, so the light doesn't blink anymore.