I've been running a Pentium 4 based PC for a few months, and my case has 5 80 mm fans in it, 3 with blue LED's. Recently I changed my motherboard to a Gigabyte 8KNXP and upgraded to a Radeon 9800 video card.
I now notice that all three of my LED fans don't glow as brightly as they used to, and very occasionally one or two of them get back to normal brightness for a second or so before returning to a dimmer state.
Any ideas what could be causing this? I don't think it's lack of power as I have an Antec 480 watt power supply in my case. One of the fans is connected direct to motherboard, others are using regular molex via adapters that came with them. I don't have any fan speed monitoring set on in the BIOS.
Thanks for any ideas.