Just buy one more 2nd hand server. Everything are the same including the OS, except one using 8x2GB ram and the other using 4x4GB ram. I found out 4GB ram has lower temperature than 2GB ram. I guess is because in 4GB-ram-block server, it has more space between each ram (because i only used 4 ram slots, in 8x2GB ram server, I used all 8 ram slots), but is it the real reason?
These are from 4x4GB server:
Ch. 0 DIMM 0: +57.5°C (low = +127.5°C, high = +127.5°C)
Ch. 1 DIMM 0: +58.0°C (low = +127.5°C, high = +127.5°C)
Ch. 2 DIMM 0: +57.5°C (low = +127.5°C, high = +127.5°C)
Ch. 3 DIMM 0: +54.0°C (low = +127.5°C, high = +127.5°C)
These are from 8x2GB server:
Ch. 0 DIMM 0: +75.5 C (low = +127.5 C, high = +127.5 C)
Ch. 0 DIMM 1: +70.0 C (low = +127.5 C, high = +127.5 C)
Ch. 1 DIMM 0: +77.0 C (low = +127.5 C, high = +127.5 C)
Ch. 1 DIMM 1: +65.0 C (low = +127.5 C, high = +127.5 C)
Ch. 2 DIMM 0: +75.0 C (low = +127.5 C, high = +127.5 C)
Ch. 2 DIMM 1: +55.5 C (low = +127.5 C, high = +127.5 C)
Ch. 3 DIMM 0: +72.5 C (low = +127.5 C, high = +127.5 C)
Ch. 3 DIMM 1: +53.0 C (low = +127.5 C, high = +127.5 C)
