A few weeks ago, I bought a dual cold cathode. It was fine up until yesterday when it started to act up. It would get darker and brighter, sort of like it's flashing. This causes static from the speakers. I have an PCP&P 510 Deluxe and using ASUS Probe, all rails are stable. I don't have any lockups. Today, I started smelling something being burnt. These are the SVC brand and it was bought before the thread about them. It seems like they are bad quality after all.