some cards do not display vrm temps. but if the core is cool, chances are the vrms are ok also.
Please don't give people who don't know any better terrible advice like that - I was mining on my linux dev/test rig, Naomi, just a day ago, and had strange crashes when core was under 70C.
I used one of my tools to check the temps on the VRM controller feeding the core - it was over 106C.
Also, I assume that under Windows, the tools you guys have should show VRM temps on all cards except those with an NCP81022 feeding the core - because I can't get temps off it either; cheap piece of shit has no sensor.
ok, i will take your word for it. edited my post above to strike out that line. guess ive been lucky.