As far as I remember, both. It was only slowly executing x86 code and the compilers didn't deliver what was expected. It was a gamble on non-matured technology.

As far as I remember, both. It was only slowly executing x86 code and the compilers didn't deliver what was expected. It was a gamble on non-matured technology. They didn't fail completely, though, HP was selling systems using Itanium processors for a long time.