Sorry I didn't get back to you sooner, I just recently had your email forwarded to my department.
Concerning your question regarding the temperatures with your processor. (1090) the maximum temperature threshold is 62 Celsius which set for the internal die (core) temperature of the chip. The core temperatures have an equational offset to determine temperature which equalizes at about 45 Celsius thus giving you more accurate readings at peak temperatures. The hindrance in this is the sub ambient idle temperature readings you speak of.
The silicon and adhesives used in manufacturing these processors has a peak temperature rating of 97+ Celsius before any form of degradation will take place. The processor also has a thermal shut off safe guard in place that shuts the processor down at 90 Celsius.
The Cpu temperature is read form a sensor embedded within the socket of your motherboard causing about a 7-10 Celsius variance form the actual Cpu temperature, which may be what you are reading about on the net.
You can use an application called AMD overdrive, that will allow you to monitor your temperatures accurately.
As long as your core temperature has not exceeded the high side of the 60 degree mark for extended periods of time you should be ok. 62 degrees holds a generous safety net to begin with.
I hope I was able to answer your questions, If you have any more inquiries don't hesitate to contact us.
Senior Technology Director
Advanced Micro Devices
Fort Collins, Colorado
2950 East Harmony Road
Fort Collins, CO
This info should be a sticky
Or at least should be in a sticky thread.