@Another User said:
Thanks for the info. Actually, I was looking around on the giga website, and according to them, giga's ram limit is restricted by the cap limit in the windows kernel. In windows XP, this would be 2GB. In windows Server 2003, the kernel's limit is 32GB, so I don't see how running giga on windows server 2003 would have problems accessing the ram up to 4GB and more.
Putting a finer point on what cm says about real world tests, I'll start by repeating point blank that "this would be 2GB" means precisely nothing; you will load 1.05GB maximum on a 2GB or greater XP machine if you follow Mattias' tweaks (if you don't, it'll be about 20% less). Period.
The internet is chock-full of BS computer specs, and they sound impressive because the words are big. They usually have little to do with reality. If you think you can load 4GB in a dual Opteron machine, best of luck to you. My hunch is that you risk loading nothing, because Giga isn't designed to run on those machines.
I hope I'm wrong, but I sure wouldn't want to be the one to run such an expensive experiment. For my money, I'd buy three cheap machines that you know will work well and a KVM switch. If portability is an issue, put them in 2U rackmount cases and then buy a roll-around rack case (SKB, Gator).
Yes, 2GB on it's own would not mean 2GB loading into giga, I'm aware of that. However think for a second. It's the DIFFERENCE in cap limits that interests me, and should everyone.
May I also remind you that "those machines" are designed to run XP software, and hence are designed to run giga. So there is a possibility that either it will, or won't work. I'm already aware of all these facts you've brought up. You still haven't been able to answer my question- will it work?! This is ultimately the only thing I'm interested in.