No other system I can test them with really. But the same sticks just failed in 1 and 3 and then booted fine in 5 and 7.
Also, yes BIOS boots before Windows, but nothing even posts. Nothing gets to the monitors at all for 10 seconds, then powers off and tries again.
motherboard - doubtful its the ram - had similar thing with a couple motherboards......as I said; pull back any OC you have until everything is stock.....and then test