What are these temps for?

[sunlitsix]

i was just running super_pi with speedfan running to see the temps of the cpu underload and i just wondered what are the temps that are highlighted in the picture from (e.g chipset etc)

and is temp2 the cpu?

 

[sunlitsix]

A64 venice 3000+ @ 2.7Ghz
1gb twin mos ram
Gigabyte nforce 3 K8NSC-939 mobo
geforce fx 5600


temp2 rises the most so that must be the cpu, still dont know about the others

 

[sunlitsix]

Anyone got any ideas?