I recently installed a 2900xt, lets just say its a little hot. Stock my cpu temp shot up to 122f idle (e6600, dq6, antec freezer pro, lian-li v1200b plus II), my system temp went from 105f-111f to 129f-138f, that is quite the increase (i assume the vid card is on top of the temp sensor on the motherboard?). I first thought it could be my PS (NeoHE 550), but i asked around people seem to think that will be good without overclocking. I can't play BF2 or hl2 after a few seconds but i can play wow and command and conquer 3 without a problem at full settings. I ran 3dmark06 a few times without problem, i assumed that would check the temp issue. So is this a temp issue, a power issue, a cooling issue, heat sinks not on properly? Also, my gpu temp under games i don't crash while playing is around 74-77C, that seems very hot to me.
The vid card sits up against one of the smaller copper blocks on the heat pipe of the mobo(The pipe connects all major heat areas of the mobo). So if i shouldn't expect the vidcard to go at anything less than 100c than why are these games crashing (games that use less of the vid card ie. wow, don't crash). Anything i should try? I am going to try underclocking the vid card next, that should tell me if its a heat/power issue right?