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Apple Computing Products:
macOS - Desktop Hardware
ATI Radeon 5770, Mac Pro 1,1, pre-boot initialization failure
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<blockquote data-quote="pigoo3" data-source="post: 1247638" data-attributes="member: 56379"><p>Another thought. Even though you didn't purchase your 5770 from OWC...you could try contacting them...and see if they can come up with any solutions.</p><p></p><p>Or if OWC is not very supportive (since you didn't buy the 5770 from them). Return the 5770 you have to Apple, and buy a 5770 from OWC. Then you can see if a 2nd 5770 solves the problems...and if not...then you can contact OWC for "official help" (since you bought it from them)!<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p><p></p><p>- Nick</p></blockquote><p></p>
[QUOTE="pigoo3, post: 1247638, member: 56379"] Another thought. Even though you didn't purchase your 5770 from OWC...you could try contacting them...and see if they can come up with any solutions. Or if OWC is not very supportive (since you didn't buy the 5770 from them). Return the 5770 you have to Apple, and buy a 5770 from OWC. Then you can see if a 2nd 5770 solves the problems...and if not...then you can contact OWC for "official help" (since you bought it from them)!;) - Nick [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
ATI Radeon 5770, Mac Pro 1,1, pre-boot initialization failure
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