Here is the solution for Solaris 10 boot up message.
WarpDrive Warning: WarpDrive is running in a slot without sufficient power, the performance will be throttled. Check WarpDrive documentation for additional details
My Senior who is Solari’s pro fixed it by upgrading the firmware of WrapDrive. I will update detailed steps once I got notes from him.
NOTICE: unsupported 64-bit prefetch memory on pci-pci bridge
NOTICE: mcxnex0: driver failed to attach: UAR BAR mapping
kstat_create('unix', 0, 'mcxnex_rsrc_cache00000000'): namespace
Fix for above messages :
due to BIOS
PCI 64 bit Resources being enabled, not supported on S10, I disabled it per https://docs.oracle.com/cd/E36975_01/pdf/E38016.pdf