Yeah I haven't given memtest a proper trial yet, have only done the tests in which I know give immediate errors assuming the RAM is just really under pressure, but yeah I also need to give it more time and hopefully I'm thinkin they will infact loosen up. Running prime95 right now at 235MHz although I'm pretty sure this speed is good to go as I've tested it before.
as 4W4K3 said though his ram will past memtest86+ like nothin yet going into windows it goes poopy
but that's due his PSU, so I figure if it can past prime95 then it's good to go since that should be taxing it WAY more than memtest does.
I have Freemem running and when I turn on the blend mode it takes it from 820mb of free memory down to like 2 and 3mbs lol so I know the memory is REALLY getting taxed in this scenario.
Good stuff though mike....have you thought about going further?
I bet you could get DDR533 with a little more frustration