Confessions of the World's Largest Switcher
Subject:   an important piece is missing.....
Date:   2003-10-30 14:22:31
From:   anonymous2
Response to: an important piece is missing.....

"Also, message caching and dynamic memory management were added for improved scientific application performance."

They have software that performs dynamic memory management. It would be niceif Apple brings ECC to at least the XServes in time, but I'm sure the memory management through software (which was developed at VT) was a big part of the cost savings, and they were never looking at machines with ECC RAM because the software could handle the error corrections.