I've had this about five years now, specs: Mobo - X99-S CPU - 5820K Cooler - NH-D15s GPU - 980Ti RAM - Corsair 16GB Vengeance LPX PSU - RM750i As of about two or three days ago the system fails to POST, and the motherboard is showing a Q-Code of 00. Doing a quick google around this could be anything from failing motherboard, CPU or power supply. Generally not good. The cooler fan doesn't spin, but GPU, case fans and HDD's work. What's strange is yesterday evening whilst toying around with the PC, I unplugged all the internal drives and USB's, reseated the RAM (an effort in itself as it's right underneath the bulky cooler) and when I pressed the power button on the mobo it gave me an error code of 33. After a few more attempts it suddenly sprung into life. I was able to switch it off to get the monitor plugged in, turn it back on and then use the system for the rest of the night without any issues. I didn't move it just in case I messed it up but shut the system down as Avast needed to update. This morning I got the same problem - cooler fan isn't spinning and the Q-code displays as 00. I don't understand what could be causing the problem, and quite frankly i'm in no mood to check each individual bit of hardware to identify the problem. Not even sure where to start. Buying X99 parts at reasonable prices appears to be quite an effort in 2020 too, so my other option is to just bite the bullet and replace the whole thing with a more modern system, which I guess would give me better support for M2 drives, higher RAM frequency, USB 3.2, PCIe 4.0 and faster boot up (ASUS boards appear to train the memory by default on each boot). My problem is where do I go from here? Looks like AMD will be releasing Zen 3 soon but that could mean i'm without a PC for a good few more months. Reading other threads on this forum suggest there's no real gain going from a 5820K to one of the newer Ryzen's, although I should mention I do not game on it. Any suggestions appreciated.