I have two MSI Armor cards, one runs at 75C/75% fan or below dual mining Eth and Dcr, one thermal throttles at 85-88C (reported by hwinfo/trixx) mining just Eth, since I manually disabled Dcr mining as the heat is a problem. Interestingly, the hot problematic one is like 88% asic, and undervolted to 850mV core/940mV mem controller (confirmed w/hwinfo) running at 1150 max boost (which it never reaches). Power draw is also low, around 60-70w VRM in. The fan is set to 100%, and it is spinning at 3200+RPM. Thinking it was a shitty thermal paste job, I repasted it but the temps are still shit. Card is less than 2 weeks old and has been running hot from the start. Any ideas why the temp is apparently so high? Thanks in advance.

Edit: The cards are at least 2cm apart, the same as my 9 other 470s that are all running well below 80C (there is a big box fan sucking in sub freezing air from outside behind my rig as well)