Today is National Bluebird of Happiness Day (among many others). It is also a day of trying to diagnose why my old (circa 2014) workstation has started freezing up more frequently. A lot of Elephants have been raised here lately. This referring to the built in linux rescue to reboot. Alt SysRq + R Alt SysRq + E Alt SysRq + I Alt SysRq + S Alt SysRq + U Alt SysRq + B I've tested memory, CPU, and GPU. All seem ok. Using y-cruncher, the CPU never goes above 65.0℃ (the idle temp is 35℃). I keep htop running but when the system freezes, htop freezes as well. I am loth to buy new or build new. Is it time to change out thermal paste? ... Any suggestions (nice suggestions)? System: Dell Workstation T-1700 Linux Mint 22.3 Intel i7-4770 CPU Quadro K2000 graphics 32Gb memory #BirdsOfFediverse #Bluebirds #LinuxQuestion #RaisingElephants