The Mac Pro First Generation is an Intel Xeon-based workstation computer manufactured by Apple Inc. between the years of 2006 and 2013.

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Why doent My Mac pro Display?

bought a mac pro quad core CPU,but it has a problem with the display.though it boots,the display doesn't come on.what could be the problem and how can i fix this.have tried changing the VGA graphics card but there seem to be no positive impact this is so frustrating can anyone advice

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If this is a non Mac edition or Apple card, this is normal until OS X boots up. You will not get an image at startup if it does not have an Apple or Mac Edition ROM.

If it's an Apple card, this should not happen. Try new monitor(s) and try again. If it goes away, it's the monitor.

If it still happens, check if the card has PCIe power plugged in. If not, find a cable and plug it in to get the card working. If it has PCIe power plugged in, it's a bad video card and you will need to replace it.

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