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WD/Seagate SATA3 Drive Jumper Tips for Older Macs with onboard SATA1
A recent Seagate SSHD in Mid-2007 MacBook (2,1) report included a jumper setting tip to force SATA1 mode on the Seagate SATA3 drive. (If a SATA3 drive won't auto-negotiate down to 1.5Gbps speed, a jumper setting is required to be usable on a SATA1 interface.) A similar jumper setting tip was posted in 2011 here for using Western Digital SATA3 drives in PowerMac G5s.
   If you have a problem with a SATA3 drive not being usable/recognized (or reliable) in an older Mac with onboard SATA1 interface, check to see if the drive has a jumper setting to force SATA1 mode. (They were put there for this reason.)
   If any reader finds another SATA3 drive model that has/needs a jumper setting for SATA1 use, let me know. (via news at

(The above are drive related issues, but there are also some SATA2 Macs with a chipset that runs SATA3 Drives at SATA1 speed that owners should be aware of before buying a drive replacement/upgrade.)

Apple/Mac/iOS related News/Tips/Op-Ed/PR:

Apple Support/How-To/Troubleshooting Articles (updated):

And more at our Tips, Troubleshooting & How-To Guides for Mac/OS X/iOS users.

Recent Articles/Tips/Tweaks/Reviews:
Listing/links of Updates, DIY mod/upgrade articles, Tips and more you may have missed.

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Previous News Archive Summary:
    Wednesday July 23rd, 2014 News
  • Mid 2011 MacBook Air EFI Firmware Update 2.9 pulled
  • Seagate SSHD in a 2007 MacBook (with fix for drive not recognized)
  • Apple describes 'suspicious' iOS background services
  • EFI and SMC firmware updates article/listings updated (2011 MBAir EFI update)
  • How to Troubleshoot iCloud Mail
  • iTunes Store: Hiding and unhiding purchases
  • How to Authorize your Mac or PC using iTunes
  • OS X Yosemite Public Beta/Sign up page and FAQ
  • Op-Ed on New MacBook Air Ad and State of the Mac

For links to older news pages, see the Archives.

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