It seems that the problem is related to a compatibility problem with the new drive. The Intel(R) Desktop Board D865PERL does not support SATA II devices, so I would guess that would cause the BIOS to take longer to detect the drive.
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Many thanks for your reply. I realize that the D865PERL is not SATA II compatible, but aren't most SATA II hard drives backward compatible with SATA I hosts? I do have a jumper set on the drive forcing SATA I compatibility mode, and the drive seems to function normally once the system is booted. I also ran manufacturer diagnostics on it and found no errors. Would you predict further issues with it or just that delay in booting up? Thanks again.