I just bought a Newer MaxPowr G3-L2 300/1MB for my PowerMac 6500/250. The problem is, it's always hanging either during startup or 5-10 minutes after the Finder has loaded. I've reinstalled System 7.5.5, 7.6.1, 8.1, 8.6 and 9.0 on a separate partition with no success. I don't have any other peripherals attached. Disabling the Newer extension makes the Mac usable again, although it just runs on the stock 603ev. Anyone have the same problems? Any help will be appreciated. Thanks.