Why the 500 GB drive didn't install on the PowerMac G5

Google saved the day with this report in xlr8yourmac.com


Notes on Seagate 7200.9/500GB drive P/Ns with SSC disabled - (from a drive db report)

" In the course of researching a hard drive purchase, I got the following information from Seagate presales support:

"All Seagate 7200.9 SATA drives with the Part Numbers that end in the suffix -301 have SSC enabled and are not compatible with the Apple controllers. (as mentioned previously here - SSC (Spread Spectrum Clocking) is not compatible with the Mac onboard SATA. Seagate also has a PC/windows utility to disable this but not a Mac version of it.-Mike)

All other suffixes other than -301 on the Part Numbers are compatible ( -302, -303,-401, -402 etc).

Here is a list of part number with SSC disabled for ST3500641AS:
9BD148-302
9BD148-303
9BD148-401"