I have an ESXi system running in a Supermicro 826B 2U chassis with 4x FAN-0074L4 midplane fans.
It was running E5-2650 v2 / X9DRD-7LN4F-JBOD (single CPU) with passive 2U heatsink and was happily idling at 30C. Now I upgraded to E5-2640 v3 / X10SRH-CF and with passive heatsink it was idling at 43C. I switched to active 2U SM cooler and it is still idling at 42C. My expectation was that upgrading to v3 from v2 will keep CPU temp the same or maybe even drop by a degree or two, but instead it jumped up by 10C. I am using optimal fan mode, but switching to full fan mode only drops temp to 40C.
lm-sensors is showing me that Package Id 0 temp is 43C (matching what IPMI is reporting), but hottest core is only at 34C, now I haven't paid much attention to the difference between package and core temp in the past so I don't know if this is normal or not.
I don't have another v3 CPU that I could try, but I am leaning towards there being something wrong with this CPU. Any ideas?
It was running E5-2650 v2 / X9DRD-7LN4F-JBOD (single CPU) with passive 2U heatsink and was happily idling at 30C. Now I upgraded to E5-2640 v3 / X10SRH-CF and with passive heatsink it was idling at 43C. I switched to active 2U SM cooler and it is still idling at 42C. My expectation was that upgrading to v3 from v2 will keep CPU temp the same or maybe even drop by a degree or two, but instead it jumped up by 10C. I am using optimal fan mode, but switching to full fan mode only drops temp to 40C.
lm-sensors is showing me that Package Id 0 temp is 43C (matching what IPMI is reporting), but hottest core is only at 34C, now I haven't paid much attention to the difference between package and core temp in the past so I don't know if this is normal or not.
I don't have another v3 CPU that I could try, but I am leaning towards there being something wrong with this CPU. Any ideas?