Thanks, Bizman & Skuzzy. We have identified one problem. It is running 32bit. Seems like when I loaded it there was a reason for not doing 64bit or maybe all my previously owned software was 32bit. There was something.
Right now, the Win 7 Pro disk is AWOL in the office. I put it in such a safe place I can't find it! It will turn up but I need to figure out why I didn't do 64 three or four years ago.
Also, I was looking at the "Windows Experience" page and it seems my hard drive may be slow. Scores are Processor 7.5, Memory 7.5, Graphics 7.9, Gaming Graphics 7.9 and Primary Hard Disk 5.9. Seems the HD isn't up to the rest of it.
All in all with what you and Skuzzy have pointed out it seems there is another option that might be quicker/easier.
I have access to a mini-tower Lenovo H50-50 90B700EDUS. There are a few options on improving that for AH. I have played AH on it and it will do about 50 frames with every thing on pretty low settings. Seems to be able to hold that in heavy ack.
It's basic spec is: Lenovo proprietary (ugh) mobo, i7-4790 3.6 GHz, 8 GB RAM, Win 10, GeForce GTX 750 Ti with a minimal proprietary 280w power supply.
Now the quick and dirty upgrade here is to add a EVGA GeForce GTX 1050 Ti SC GAMING, 4GB GDDR5. It's a 300w card supposedly but whats 20 watts amongst friends, right? It might not need a bigger PSU AND it is a very small card (1.5 x 5.7 x 4.38 in) which is key here. The Lenovo mobo has the end of the RAM slot sticking down inline with the PCIe 3.0 slot to where the card must be ≤ 6.4" by my measure.
GeForce GTX 1050 Ti SC GAMING shows 5826 at Passmark while the GTX 750 Ti shows 3695. It's cheap to upgrade: ~$140. Would it make a significant difference in game?
The other option is new PSU (750w @ $45), new EVGA GeForce GTX 1060 GAMING ($240/ Passmark 8556) and a cheap adapter ($15) for the Lenovo proprietary 14 pin mobo power plug. So $300 total.
Here's the catch: that 1060 board length is spec'd at 1.62 x 6.8 x 4.38 in. I have been assured by <cough> MicroCenter</cough> that this board will fit in the Lenovo H50-50. By my measure it is .4" too long but maybe there's a cut or something that clears the RAM slot. Only way to find out is get one and check it out.
So to sum up.
I'm kinda thinking that upgrading the i7-870 2.93GHz machine is not really cost effective given the CPU and the apparently slow HD.
The quick/dirty $140 Lenovo upgrade might improve it enough to let me really check out AH3, the only risk being the 280w PSU vs the stated need for 300w.
The quick $300 upgrade should run AH3 pretty well? Yes/No? Decent CPU, good GPU, enough RAM from what I have been reading.
Your thoughts are greatly appreciated.