When using a Fujitsu Siemens Primergy RX300S3 with Intel Pro/1000 PT Quad in PCI slot #4:
ESX host stops responding at boot.
The last line displayed is, Enabling interrupts...
Resolution
The root cause of the issue, as identified by Fujitsu Siemens and VMware engineering teams, is a bug in the VMware ACPI code handling PCI configuration space access. This is a generic issue in this portion of the code and affects the parsing of the ACPI data provided by the Fujitsu Siemens BIOS. It is theoretically possible that the same issue can be witnessed on different hardware combinations.
This issue is resolved in ESX 3.5 Update 2.
If you require further support, contact Fujitsu Siemens Support Organization or VMware Support.