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Apple Computing Products:
macOS - Desktop Hardware
MacPro 1,1 - What is my bad part?
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<blockquote data-quote="klaus_h" data-source="post: 1718888" data-attributes="member: 378417"><p>Dear community,</p><p></p><p>I am having trouble with my Mac Pro 1,1.</p><p></p><p>One day a short time ago, the display went dark and remained dark and the boot process would not start ever since. Everything still seems as always. LEDs on RAM slider flash on startup, LEDs on ATI Radeon X1900XT go on, GPU fan comes on, system fan comes on. But nothing else happens.</p><p></p><p>SETUP back then:</p><p></p><p style="margin-left: 20px"><p style="margin-left: 20px"><p style="margin-left: 20px">Apple MacPro 1,1</p> <p style="margin-left: 20px">ATI Radeon X1900XT Mac Edition in Slot 1</p> <p style="margin-left: 20px">4GB RAM (8x 512MB)</p> <p style="margin-left: 20px">OCZ Agility 3 SSD 240GB in Slot 1</p> <p style="margin-left: 20px">1TB HDD Slot 2</p> <p style="margin-left: 20px">1TB HDD Slot 3</p> <p style="margin-left: 20px">500GB HDD Slot 4</p> <p style="margin-left: 20px">OSX Lion</p> </p> </p><p></p><p>So I bought a used X1900XT on the internet for almost USD 100, oh my.</p><p>It did everything the same way the old X1900XT would do. No boot, no image onscreen, the GPU obviously wasn’t bad.</p><p></p><p>I am sure it is not the RAM. I checked the RAM thoroughly and I am sure all 8 bars are working.</p><p></p><p>But WHAT IS THE BAD PART?</p><p></p><p>The power supply?</p><p>The logic board?</p><p></p><p></p><p>In <a href="https://youtu.be/32EJyOif-hY" target="_blank"><strong>VIDEO 1 </strong></a>you see what happens when I switch on the Mac with 2 ATI X1900XTs installed. No boot, no image. Holding shift key does nothing. But the RAM LEDs flash, and both X1900XTs come on as if they were working. But no boot, no image onscreen.</p><p></p><p>In <a href="https://youtu.be/zRvSceMTOwM" target="_blank"><strong>VIDEO 2</strong></a> you see what happens when I switch on the Mac with 1 XFX NVIDIA GeForce GTX 285 (old but fully tested and working 64bit GPU, supported natively in OSX).</p><p>This video card should work easily on this Mac.</p><p></p><p>SETUP is now:</p><p style="margin-left: 20px"><p style="margin-left: 20px"><p style="margin-left: 20px">Apple MacPro 1,1</p> <p style="margin-left: 20px">XFX NVIDA GeForce GTX 285 Mac Edition in Slot 1</p> <p style="margin-left: 20px">4GB RAM (8x 512MB)</p> <p style="margin-left: 20px">OCZ Agility 3 SSD 240GB in Slot 1</p> <p style="margin-left: 20px">Traveller 3.0 16GB USB with bootable El Capitan Installer (Mac AppStore) in rear USB slot</p> </p> </p><p></p><p>My guess is the power supply. Why would it not at least fire up the GTX 285 in any sense? It just stays dead, as if there were no power at all.</p><p></p><p>PLEASE dear community, share your experience with me.</p><p>Thank you.</p></blockquote><p></p>
[QUOTE="klaus_h, post: 1718888, member: 378417"] Dear community, I am having trouble with my Mac Pro 1,1. One day a short time ago, the display went dark and remained dark and the boot process would not start ever since. Everything still seems as always. LEDs on RAM slider flash on startup, LEDs on ATI Radeon X1900XT go on, GPU fan comes on, system fan comes on. But nothing else happens. SETUP back then: [INDENT][INDENT][INDENT]Apple MacPro 1,1 ATI Radeon X1900XT Mac Edition in Slot 1 4GB RAM (8x 512MB) OCZ Agility 3 SSD 240GB in Slot 1 1TB HDD Slot 2 1TB HDD Slot 3 500GB HDD Slot 4 OSX Lion[/INDENT][/INDENT][/INDENT] So I bought a used X1900XT on the internet for almost USD 100, oh my. It did everything the same way the old X1900XT would do. No boot, no image onscreen, the GPU obviously wasn’t bad. I am sure it is not the RAM. I checked the RAM thoroughly and I am sure all 8 bars are working. But WHAT IS THE BAD PART? The power supply? The logic board? In [URL="https://youtu.be/32EJyOif-hY"][B]VIDEO 1 [/B][/URL]you see what happens when I switch on the Mac with 2 ATI X1900XTs installed. No boot, no image. Holding shift key does nothing. But the RAM LEDs flash, and both X1900XTs come on as if they were working. But no boot, no image onscreen. In [URL="https://youtu.be/zRvSceMTOwM"][B]VIDEO 2[/B][/URL] you see what happens when I switch on the Mac with 1 XFX NVIDIA GeForce GTX 285 (old but fully tested and working 64bit GPU, supported natively in OSX). This video card should work easily on this Mac. SETUP is now: [INDENT][INDENT][INDENT]Apple MacPro 1,1 XFX NVIDA GeForce GTX 285 Mac Edition in Slot 1 4GB RAM (8x 512MB) OCZ Agility 3 SSD 240GB in Slot 1 Traveller 3.0 16GB USB with bootable El Capitan Installer (Mac AppStore) in rear USB slot[/INDENT][/INDENT][/INDENT] My guess is the power supply. Why would it not at least fire up the GTX 285 in any sense? It just stays dead, as if there were no power at all. PLEASE dear community, share your experience with me. Thank you. [/QUOTE]
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Apple Computing Products:
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MacPro 1,1 - What is my bad part?
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