Sounds like they all use cheap capacitors. I would consider another vendor.
I found this recent LKML announcement interesting:
"The GIGABYTE M57SLI-S4  is the first-ever desktop motherboard
supported by a Free & Open Source BIOS, thanks to AMD engineer Yinghai
Lu who released GPL-licensed code last month. This state-of-the-art
motherboard is based on the NVIDIA nForce 570 SLI chipset and AMD's
latest Socket AM2. It contains tons of advanced features such as:"