Dan Easley wrote:
There's the big power connection to the motherboard that we're all familiar with. The motherboard I have has two additional 12V sockets - one that's square-shaped and one that's the same format as drives use. I plugged in both and had the same results as you - perhaps with more fear, as I thought that flash was something blowing (having no clue that the case has LEDs. :) I unplugged one of those additional 12V leads from the motherboard - I chose to unplug the drive-format one, freeing it up to power a drive, keeping the weird square-shaped one plugged in. It then ran fine. Apparently they are redundant, but you can only use one.
According to the Antec manual the square-shaped connector is the CPU power connection. It is plugged in correctly.
If none of the above, I suggest double-checking/experimenting with the direction that the power/reset-switch leads from the case are plugged in.
I'll try that. I always get that sort of thing mixed up. Thanks for the suggestions ! :) Best, dp