How do I optimize for gaming?!?!?
I will talk about it, but this is not a strict HOWTO. Many of the details are simply from years of experience, and not an exact procedure. In part, that is because it depends on each individual machine to some extent.
When I take a look at someone's machine in person, in every single case I have ever come across, the person had their machine misconfigured, or less than optimum setup. Over 2,000 windows installations so far. Every one! No exceptions. However, almost every one could "run" when you turn it on. But they run badly, with conflicts, run choppy, with lag, yada yada yada....
For a few people who are friends, I fix it. It can take me about 8 hours in some cases. In every case, when I am done, the machine works great, and non of the problems I read about on this board or other ones exist. I know about so many problems mostly because I see what people have before we scrap their OS and reinstall from scratch. I will not be able to explain all in this post of just why/how everything is done, as it would take hours or days to write.
General Outline (not a HOWTO!!):
1. Take the machine apart, examine all hardware, replace the weak links, like old hard drives.
2. Update MB & Video Card BIOS, then set every setting by hand, from scratch.
3. Repartion their drive into hard drive into logical drives C: thru H:
3.a. C: is 2GB, with emergency boot (like Win98 or DOS)
3.b. D: is typically 1 GB, with ONLY a swapfile. Nothing else.
3.c. E: is 6.4GB, and contains Temp & Cache files, only.
3.d. F: is typically 24 or 48 MB, and is the main OS.
3.e. G: is usually 24 MB, and the alternate boot OS.
3.f. H: has most of the rest of the drive capacity for data.
4. Install XP (from a custom configuration, slipstreamed, optimized; processes and reasons for just how are contained throughout the MS Knowledge Base & are quite complicated)
5. Optimize all services & registry settings (fairly complicated).
6. Install whatever games and programs... if they do not conflict with other programs (I test each, and know from experience, or else it does not go on a machine).
The repartitioning is a key, nay crucial, element to keeping a MS machine running as well as the MS OS will allow it. I use Partition Magic to do the work.
It is essential to note that if you are not confident in plowing into your registry and understanding it, that it is far far far far simpler for you just re-install your Windows every 6 months or so... more frequently if you start having slowdowns or problems. Problems usually happen as a result of web surfing (I won't go into all that in this post), installing/removing programs, and testing games.
As far as online sources go, I'd google for it. I'm sure there are guides that are written. However, there are no simple "magic bullets". A person cannot just do whatever "damage" to an OS and expect to click on an .exe and cure all.
Your machine, with a 6800 and 4.1 GHz, even from a mere Celeron, should be a screamer. Unfortunately, I cannot give you a golden bullet. Even a fresh install of Windows XP is not optimized for gaming, but I cannot explain all the things I do since it really is vast, and always a work in progess. LOL, I am currently testing two optimized builds of XP as we speak, and this process has been ongoing since XP came out. One method of optimizing some aspects of an XP install is to google for nLite. Then read the several hundred hotfixes and hotfix candidates, particularly for XP SP3 (not released yet). Then do driver optimization. On and on. Its basically recursive. .
So don't bite off on everything at one. Instead, know exactly what a single tweak or idea or recommendation does, and build on that. DO NOT blindly go to a site, and blindly apply some "miracle cure!" It will take time, but you will be playing games for years to come (in the big picture).
Hope this helps, or at least makes you aware that 'optimization' as I define the term is not a trivial issue. Things like "Set AGP Aperture Size to 128" are a single item, of hundreds of possibilities, in optimization. And many things only make an impact when they are done properly, in conjuction with other seemingly unrelated things (like network and sound, for instance).
SOOOoooo.... bottom line? Back up your system. Then think about tweaks. Likely, the best tweak is to repartition and install a 2nd OS on one of the new partitions, then get it up to speed, and only play a few of your 'best' games, like RTW, on it.
PS, I guess I'll have to make a basic HOWTO out of this sometime, because I'm sure others have these kinds of questions too.