Overtemperature after inserting gpu

Krishna Kanth

Honorable
Jul 29, 2013
13
0
10,510
my spec's
GB 78lmt-s2pt v4 motherboard
amd athlonii X2 270 3.40ghz proc
4gb ram
gt240 gpu
450w zebronics psu


whole components are brand new except gpu and psu , after i insert gpu in slot my system temp are abnormal,when i starts playing temp rises to above 80c and at normal they remain 50c core remains 29-40c, can any 1 help regarding this issue