MacPro1,1 w/ Radeon 5770: Temperature runs high

i have macpro1,1 have installed ati radeon 5770 in. has worked great, except i've noticed runs extraordinarily hot. problem can't yet pin down exact cause. installed 2 acer s242hl monitors, , have been playing diablo 3 , then.

earlier afternoon, had chrome , parallels running, , had mac diablo 3 client running on second monitor. trying fine-tune color configuration first monitor, second monitor turned red hue , had static/fuzz going crazy on it. reached behind machine , warm, , touched radeon's plate extraordinarily hot.

shut machine down , popped case open allow cool. had left old video card in next slot backup (which have noticed lot of people installing 5770 on machine seem do), removed open more space.

after hour, put case , plugged machine in again. right now, istat showing following temperatures , fan speeds:

temps

• hd: primary: 104
• hd: secondary: 106
• cpu a: 95
• cpu b: 95
• ambient: 79
• expansion slots: 97
• hd bay 1: 92
• hd bay 2: 88

fans

• power supply 639rpm
• exhaust: 599rpm
• cpu fan: 499rpm
• hd/expansion: 500rpm

i've never monitored these before, i'm not sure how take these numbers. obviously, if i'm running game eve or diablo 3, temperatures rise, there can reasonably try improve cooling inside mac, particularly respect radeon card?


edit: should add when problem first happened, had both monitors connected using mini displayports. prior getting these new monitors, had 1 monitor hooked displayport, , other dvi (for reason couldn't previous monitors both run on displayports @ same time).

 

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