nuninho1980 wrote:before update new motherboard (asus) and new cpu (pentium d 820), the celestia was running without any problems in cpu of p4 3.06ghz northwood and in motherboard of dfi via p4x400-al.
Then I'm sorry to say that this suggests an AGP or motherboard problem. I seem to recall that there have been some issues related to getting the AGP bus mapping set correctly in the BIOS, although the problem is not unique to Celestia.
Just to be certain:
What capacity is the power supply in your system?
(It should be 500 Watts or more: lower rated supplies can't supply the current that the graphics card requires, even if the whole system uses much less than 500W.
The 6800Ultra requires 130W and the P4D 820 requires close to 100, plus memory and disks, that adds up quickly.)
Do you have the second power connector connected on the graphics card?
(It can't get enough current through the motherboard slot and thus can't work without the second connection.)
[edit]
Using 6000 series cards in 3D mode more than doubles their power usage compared to 2D mode, so you might not see a problem normally. Also, Celestia is much more demanding than most 3D games.
[/edit]
What does the 6800's temperature monitor say in the Nvidia ForceWare graphics driver?
What does the CPU temperature monitor say?
What about the temperature of the "northbridge" chip?
(If any of them overheat, they'll shut down the system.)
