This is the combination of some high end older parts, bad impulse control, and really good deals on parts.
Tech YES City did find Spectre and Meltdown mitigations severely degraded performance on Lynnfield systems, so make sure to turn off Spectre and Meltdown mitigations with the tool from Gibson Research:
EVGA P55 boards have lasted a VERY long time. My P55 Micro is still kicking.
i just watched a video on a build featuring this processor and it still seemed to work as a budget rig in 2019