[MotherBoard]Asus P5E3 Deluxe Teperature Issues

Hi, im new in the forum, i wanted to hear the experiences of another users about the temp of the mobo.

my mobo sits on 40c 42c at idle it can varydepending of my room temperature and when i play for few hours it can reach the 45c and the asus probe (my temperature monitor) has the alarm set at the 45c releasing the alarm.

i read somewhere many users having the same problem they related somethign about using the pcie 16x causing the temperature to rise.

by the way my case has

Asus P5E3 Deluxe MOBO
Qx9650 Procesor
Geforce 9800GTX GPU
one TV tunner on one PCI and 2 usb + fire wire on the other pci

120mm fan on front to input air
120mm fan on rear to output air
80mm one on the side to input air

my procesador cooler its the V1 from thermal take

are those temperatures ok or should i do something else? or somethign to consider?

Thx in advance

the aplication, used to take the temperature its the PC probe II, came on the instalation cd of the motherboard the 45c were reached while playing few hours on crysis