the older gpu card ran hot. my older 250 gpu temp was 50-60c just sitting still. with the other pc the nvidia card is older and slower then the onboard chipset and not made for windows 7. most of these cards are used for low power hpc pc. the temp getting that hot is not the card issue but the dell case and that the gpu is passive cooled. most of these cards would be used in mini towers with at lest two fans one pulling air in and one pulling air out. if your using the small form factor desk top i would look into cutting some vent into the top panel or look into putting a fan on the top of the case to vent the hot air out.