One wow freezing.

[Ualaa]

Do you get a WoW error box? What # error?

Still it sounds like a RAM problem. Run Memtest86.

Not getting any error messages.

Try giving each wow copie an own wow directory...
i get freezes too, but thats duo my CPU cant handle Mayor Cities...
+ your pc needs to Read and Write to the same HDD and Map... i gues your bottleneck lies with mapping your wow dirs/Single HDD.

I'm running InnerSpace + ISBoxer Toolkit. Basically I have a single wow directory, but it virtualizes my config file, so I can have separate settings for each wow as if I had multiple folders.

turn hyperthreading off, if that fixes it, make sure that u got the affinity set in pairs and not skipping one, like 1-1,2; 2-3,4; 3-4,5; 4-6,7 ; 5-5,6. that made a big diff for me, or u can just leve threading off entirely and set it up as u would on a quad core

I'm not exactly sure what you mean here.

The ISBoxer wizard has all 8 cores running each copy of warcraft, ie. let windows decide which cores to use and when. I can set it so only two cores are used for each copy of wow. I'm not sure how to turn Hyperthreading off.

I've had similar problems. With my old Nvidia i could easily run 5 WoW's at once, but then i upgraded to much faster ATI Radeon with more memory and everytime i started up 5 WoW's 1 of them froze. It must be a problem with radeon card and the way it handles multiple wow's.

It could be the Radeon. I had an Nvidia 8800 GTX, and then upgraded to the Radeon 4870 X2. I found with the Radeon, I could run higher graphics and still be smooth, but if I did not severely limit the background FPS some of the slaves would freeze when taking flight paths. I have been running the same card (Radeon 4870 X2) for more then a year now, with the Q6600 and background FPS limited to 10, without freezing issues. Having upgraded the processor, ram and motherboard, and I'm getting the random freezes.