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#11
Windows 7 is very sensitive about the Memory while installing! Special on older systems!
I had similar problems a few times and all times it were because of the memory.
Try to first to clean the Feets of the memory banks with an pencil rubber! Secondly use only 1 bank and try to install. if that didn't works, change that bank and so on. That's just to find out it's a compatibility problem with the memory and Win7!
Good luck.