motherboard and ram

Solution
The Super Micro motherboard supports DDR2 Fully Buffered (with ECC) memory only. It does not support DDR2 Registered (with ECC) memory.

The Hynix modules from eBay are DDR2 Registered memory modules and are not compatible with the motherboard.

You have to get DDR2 Fully Buffered (with ECC) memory modules instead.
The Super Micro motherboard supports DDR2 Fully Buffered (with ECC) memory only. It does not support DDR2 Registered (with ECC) memory.

The Hynix modules from eBay are DDR2 Registered memory modules and are not compatible with the motherboard.

You have to get DDR2 Fully Buffered (with ECC) memory modules instead.
 
Solution