http://forums.station.sony.com/ps2/index.php?threads/desktop-crash-after-a-few-minutes.48199/ Keep this thread bumped. Having the same issue.
HI guys. Good news. I think I found another good solution. Don't you gus get the crash when the battle get hot or on map loading? I bet these are caused by a memory problem. Anyway, this is the solution : First, set your page file to a larger amount. How to: http://windows.microsoft.com/en-US/windows-vista/Change-the-size-of-virtual-memory In my case, I changed it from about 5000MB to 10000MB and it completely worked. Reboot and try running PS2 and check if it workes. Second, if the first solution didn't work, also try this. Run command prompt as Administrator. Type "bcdedit /set IncreaseUserVa xxxx". Now xxxx is a certain value but I'm not sure what this command is doing andwhat the best value is. Well, try "3072" or "2048" or "4096" etc. In my case, 3072 was best. Reboot and try running PS2. Also remember that to revert this setting, type "bcdedit /deletevalue IncreaseUserVa". I haven't got any crash and enjoying the game after this. Hope these works for you guys too. Good luck!