Hello, Since there are a lot of experts here ( I guess, at least ), I would like for an opinion / ideas / knowledge. I've been told that the temperature sensors on Fuels are subject to get defective. Is the same valid for current sensors ? The question is due to this... I just got a Fuel donated to me, very kindly, that didn't turn on once I tried to. (the old owner didn't turn it on in a while, I was told) I've connected to the L1 diagnostic serial port on the mb and ... The env system prevents it from turning on for 2 reasons 1) XIO V12 bias with a value of 5.81 , considered too low 2) Odyssey temp fix at 93c at box turned off But I managed to run env while the 30 seconds timer announcing the power down were running and... it shows that 12V and 12V IO are perfect with the psu "running" so... any idea if the xio v12 bias sensor is connected with the odyssey temp sensor and thus could be simply faulty. I could do a test turning off env monitoring, but I would prefer to do it only after hearing opinions . given I don't know what kind of damages could happen if v12 bias is right , instead, and the system is brought up Environmental monitoring is enabled and running. Description State Warning Limits Fault Limits Current -------------- ---------- ----------------- ----------------- ------- 12V Enabled 10% 10.80/ 13.20 20% 9.60/ 14.40 12.12 12V IO Enabled 10% 10.80/ 13.20 20% 9.60/ 14.40 12.19 5V Enabled 10% 4.50/ 5.50 20% 4.00/ 6.00 5.10 3.3V Enabled 10% 2.97/ 3.63 20% 2.64/ 3.96 3.35 2.5V Enabled 10% 2.25/ 2.75 20% 2.00/ 3.00 2.47 1.5V Enabled 10% 1.35/ 1.65 20% 1.20/ 1.80 1.47 5V aux Enabled 10% 4.50/ 5.50 20% 4.00/ 6.00 5.12 3.3V aux Enabled 10% 2.97/ 3.63 20% 2.64/ 3.96 3.29 PIMM0 12V bias Enabled 10% 10.80/ 13.20 20% 9.60/ 14.40 0.00 Asterix SRAM Enabled 10% 2.25/ 2.75 20% 2.00/ 3.00 2.52 Asterix CPU Enabled 10% 1.44/ 1.76 20% 1.28/ 1.92 1.61 PIMM0 1.5V Enabled 10% 1.35/ 1.65 20% 1.20/ 1.80 0.00 PIMM0 3.3V aux Enabled 10% 2.97/ 3.63 20% 2.64/ 3.96 3.30 PIMM0 5V aux Enabled 10% 4.50/ 5.50 20% 4.00/ 6.00 5.15 XIO 12V bias Fault 10% 10.80/ 13.20 20% 9.60/ 14.40 5.81 XIO 5V Enabled 10% 4.50/ 5.50 20% 4.00/ 6.00 2.42 XIO 2.5V Enabled 10% 2.25/ 2.75 20% 2.00/ 3.00 1.21 XIO 3.3V aux Enabled 10% 2.97/ 3.63 20% 2.64/ 3.96 1.60 Description State Warning RPM Current RPM -------------- ---------- ----------- ----------- FAN 0 EXHAUST Enabled 920 1129 FAN 1 HD Enabled 1560 2229 FAN 2 PCI Enabled 1120 1476 FAN 3 XIO 1 Enabled 1600 3869 FAN 4 XIO 2 Enabled 1600 3699 FAN 5 PS Enabled 1600 1980 Advisory Critical Fault Current Description State Temp Temp Temp Temp -------------- ---------- -------- -------- -------- --------- NODE 0 Enabled 60C/140F 65C/149F 70C/158F 20c/ 68F NODE 1 Enabled 60C/140F 65C/149F 70C/158F 21c/ 69F NODE 2 Enabled 60C/140F 65C/149F 70C/158F 20c/ 68F PIMM Enabled 60C/140F 65C/149F 70C/158F 20c/ 68F ODYSSEY Active 60C/140F 65C/149F 70C/158F 93c/199F BEDROCK Enabled 60C/140F 65C/149F 70C/158F 20c/ 68F Alessandro