I'm posting this in a new thread as I hope we can get a sticky on this (if it works for more then just one or two people).
The original problem was having civ4 lock up on a Nvidia 6800GT card after about 5-10 minutes of play. The lockup looks something like this:
Based on suggestions from Ludde and Raezal, I downclocked the video card from 370 MHz core/ 1.00 GHz memory down to 330 MHz core, 899 MHz memory. After doing that, I've been able to run the game for over an hour and a half without issues.
I was fairly aggressive downclocking my video card, it may well be that a higher setting will still allow Civilization IV to function.
For more specific details on the steps I took, see below. If you would like to read the original thread, it is at http://forums.civfanatics.com/showthread.php?t=134244
I've taken the following steps (please note that this may or may not work for you. I take no responsibility if this causes issues or failures with your rig):
[1] I downloaded foreceware_coolbits.exe from www.3dguru.com (file is at http://downloads.guru3d.com/download.php?det=815)
[2] I extracted and then double clicked the coolbits.reg file. This adds registry keys to your HLKM hive.
[3] I went to display properties->settings->advanced, then clicked on the GeForce tab.
[4] This should open another "attached" dialogue box on the left. On the left side dialogue box, I selected "Clock Frequency Settings". This changes the dialogue box to the right.
[5] I wrote down the existing Core Clock Frequency and Memory Clock Frequency (for my computer, it was 370 MHz core, 1.00 GHz memory).
[6] I changed both frequency settings to a slower setting. For my computer, I changed it to 330 MHz core, 899 MHz memory. If you try this solution, you may find your "sweet spot" at a different setting. *** WARNING *** Setting this higher then the original settings may fry your video card and your warranty along with it. Be careful!
[7] I clicked "test Changes", then clicked "OK"
[8] I'm now playing CIV.
If you try out this solution and it works (or doesn't!) , post in this thread!!!
Feel free to PM me if you have any questions.
The original problem was having civ4 lock up on a Nvidia 6800GT card after about 5-10 minutes of play. The lockup looks something like this:
Based on suggestions from Ludde and Raezal, I downclocked the video card from 370 MHz core/ 1.00 GHz memory down to 330 MHz core, 899 MHz memory. After doing that, I've been able to run the game for over an hour and a half without issues.
I was fairly aggressive downclocking my video card, it may well be that a higher setting will still allow Civilization IV to function.
For more specific details on the steps I took, see below. If you would like to read the original thread, it is at http://forums.civfanatics.com/showthread.php?t=134244
I've taken the following steps (please note that this may or may not work for you. I take no responsibility if this causes issues or failures with your rig):
[1] I downloaded foreceware_coolbits.exe from www.3dguru.com (file is at http://downloads.guru3d.com/download.php?det=815)
[2] I extracted and then double clicked the coolbits.reg file. This adds registry keys to your HLKM hive.
[3] I went to display properties->settings->advanced, then clicked on the GeForce tab.
[4] This should open another "attached" dialogue box on the left. On the left side dialogue box, I selected "Clock Frequency Settings". This changes the dialogue box to the right.
[5] I wrote down the existing Core Clock Frequency and Memory Clock Frequency (for my computer, it was 370 MHz core, 1.00 GHz memory).
[6] I changed both frequency settings to a slower setting. For my computer, I changed it to 330 MHz core, 899 MHz memory. If you try this solution, you may find your "sweet spot" at a different setting. *** WARNING *** Setting this higher then the original settings may fry your video card and your warranty along with it. Be careful!
[7] I clicked "test Changes", then clicked "OK"
[8] I'm now playing CIV.
If you try out this solution and it works (or doesn't!) , post in this thread!!!
Feel free to PM me if you have any questions.
