Trouble installing system on a Macintosh Quadra 660AV

[Alexis]

Hi,

I've got a Mac Quadra 660AV which refuses to install any system software, 
except System 7.1, which it refuses to boot from (apparently it needs a newer 
version, but web pages about the Mac say it should work). I've tried System 
7.1, 7.5 through 7.5.3, and Mac OS 7.6.

It happens right at the end of the install, when the system is being 
finalised. I've replaced the battery, cleared the NVRAM, updated the disk 
driver and set the date. I'm using the original hard drive.

Does anyone have any ideas?

Alexis.