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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="harryb2448" data-source="post: 1247727" data-attributes="member: 42497"><p>The problem with this card is that you are unable to boot from Apple Hardware Test on our Mac Pros because it was on the original install discs version OS X.4.7 and the 5770 will only boot from an OS X.6.4 original system install disc from a much later Mac Pro.</p><p></p><p>Investigated this in the last week or two and decided to go with a HD4870 card which is capable of booting Apple Hardware Test from the original discs. Losing boot screen and AHT, DiskWarrior, Tech Tool etc capability were important to me.</p><p></p><p>Perhaps the ideal answer is to install a GeForce 7300 card in slot 4. They do not require connection to the PCI-E connectors on the mother board. You could boot from that card no problem.</p><p></p><p>In addition OWC reported the card as compatible with Mac Pro 1.1 but Apple did not. Believe Apple's option is for us to upgrade the Mac Pros, of course. Apple's specs called for a 2010 model Mac Pro:-</p><p></p><p></p><p><a href="http://store.apple.com/us/product/MC742ZM/A" target="_blank">http://store.apple.com/us/product/MC742ZM/A</a></p></blockquote><p></p>
[QUOTE="harryb2448, post: 1247727, member: 42497"] The problem with this card is that you are unable to boot from Apple Hardware Test on our Mac Pros because it was on the original install discs version OS X.4.7 and the 5770 will only boot from an OS X.6.4 original system install disc from a much later Mac Pro. Investigated this in the last week or two and decided to go with a HD4870 card which is capable of booting Apple Hardware Test from the original discs. Losing boot screen and AHT, DiskWarrior, Tech Tool etc capability were important to me. Perhaps the ideal answer is to install a GeForce 7300 card in slot 4. They do not require connection to the PCI-E connectors on the mother board. You could boot from that card no problem. In addition OWC reported the card as compatible with Mac Pro 1.1 but Apple did not. Believe Apple's option is for us to upgrade the Mac Pros, of course. Apple's specs called for a 2010 model Mac Pro:- [url]http://store.apple.com/us/product/MC742ZM/A[/url] [/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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