Mike T Posted February 23, 2007 Share Posted February 23, 2007 "On 32-bit machines, the Windows® operating system allows by default up to 1.5 GB for any single process (application). That means that even though you may have more physical RAM (for example 2GB), the operating system will not allow an application to use all of that memory. However, on the Windows® XP operating system, you can change this by using the famous /3GB switch in your boot.ini file. This will enable the OS to allocate up to 3 GB of RAM for any given application. Using that switch may allow you to render your scene without using any of the methods below for reducing memory usage." -VRAY Guide I would like to try this but I don't know where or how to get to "the famous /3GB switch they are talking about. Any suggestion? Maybe this will solve alot of crashing for alot of people. Link to comment Share on other sites More sharing options...
erickdt Posted February 23, 2007 Share Posted February 23, 2007 I too have had similar issues. Juan Alteri helped me out though. here's the link to that conversation: http://www.cgarchitect.com/vb/21807-help-please.html I haven't done the 3GB switch yet myself but that's apparently how to do it. Link to comment Share on other sites More sharing options...
Mike T Posted February 24, 2007 Author Share Posted February 24, 2007 Thanks Erick, I've changed it but I'm a little scared. I've heard success stories from doing this and one guy said he had to reinstall his OS, that wouldn't be so good. Anyway, I'll try it and if you haven't heard anything from me in a week that means all of hell is loose. Link to comment Share on other sites More sharing options...
LordRaven Posted February 24, 2007 Share Posted February 24, 2007 The 3 GB switch was a real life saver for me. I haven't got any problems because of it so far. Link to comment Share on other sites More sharing options...
BrianKitts Posted February 24, 2007 Share Posted February 24, 2007 I keep two lines in the boot.ini so that I get the option at bootup so that it can be easily turned on or off. Every once in a while I experience memory errors when running the switch, but it is quite infrequent. Regardless I leave the switch off unless I'm really stretching the memory thin in MAX. In which case I'll reboot and throw it on.... otherwise the machine seems to like it better off. Regardless though, it's never done anything detrimental to the system that would require reinstallation of the OS. Worse it's ever done is lock up the system. Link to comment Share on other sites More sharing options...
Mike T Posted February 25, 2007 Author Share Posted February 25, 2007 I works great so far. I've rendered a high res scene with high quality settings and it took it like a pro. Thanks Again. RPC Plants still crash my system though, but that's something else I guessing. Link to comment Share on other sites More sharing options...
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