I don't know why they have removed it, but here's the change log for the firmware release.
--<< Release >>
v1.40- Date: 09/15/2006
- Checksum: 0xD109 (BIOS140.ROM)
- Checksum: 0x5C8B (BIOS140.WPH)
- Banner: Sun Ultra 40 Workstation BIOS v1.40
- Description:
- Based on V1.30
- Segate 80g/250g/500g displaying incorrect speed
- LSI 3041 drops out of Bios Boot Order
- Support for RHEA card
- Bios option, Halt on keyboard error reversed
- NVidia errata, Bar@0x10 seen in Solaris
- Bios power button event
--<< Release >>
v1.30- Date: 05/18/2006
- Checksum: 0x77FB (BIOS130.ROM)
- Checksum: 0x0386 (BIOS130.WPH)
- Banner: Sun Ultra 40 Workstation BIOS v1.30
- Description:
- Based on V1.20
- Support PSS states for AMD Opteron 248 and 252 CPUs
- Added network boot display during system post
--<< Release >>
v1.20- Date: 04/13/2006
- Checksum: 0xA550 (BIOS120.ROM)
- Checksum: 0x30A2 (BIOS120.WPH)
- Banner: Sun Ultra 40 Workstation BIOS v1.20
- Description:
- Based on V1.10
- Integrated Console Redirection
- Implement SRAT (System Restore Affinity Table)
- Added fan speed control
- Added keyboard error halt on option
--<< Release >>
v1.10- Date: 03/08/2006
- Checksum: 0x6B6C (BIOS110.ROM)
- Checksum: 0xF652 (BIOS110.WPH)
- Banner: Sun Ultra 40 Workstation BIOS v1.10
- Description:
- Based on V1.07
- Added SATA hard disk speed information
- Support SMBIOS 2.4
- Reduced shadow memory usage to fix issues with certain Ultra-320 SCSI cards
- Fixed issues with certain PCI-X network cards
- Added MCFG table for Windows Vista support
- Enabled SATA 3.0Gb/sec if the hard disk supports it
- Added IOMMU for the AGP aperture size and expanded to 64MB
- Turned off the spread spectrum
- Removed Console Redirection
--<< Release >>
v1.07- Date: 02/06/2006
- Checksum: 0x48A7 (BIOS107.ROM)
- Checksum: 0xD3C3 (BIOS107.WPH)
- Banner: Sun Ultra 40 Workstation BIOS v1.07
- Description:
- Based on V1.05
- Support to tune SATA1 and SATA2 controller registers by smart decision algorithm
- Support PSS states for AMD Opteron 256 and 285 CPUs
--<< Release >>
v1.05- Date: 12/19/2005
- Checksum: 0x10B6 (BIOS105.ROM)
- Checksum: 0x9C50 (BIOS105.WPH)
- Banner: Sun Ultra 40 Workstation BIOS v1.05
- Description:
- Fixed incorrect hard disks order
- Changed BIOS option for OS installation