Diagnostic LED 2 indicates the presence of trickle power required by the logic board to begin the startup process. If diagnostic LED 5 and LED 6 are both solidly illuminated at power up, improperly seated power supply cables could be one cause of this behavior.
Check all power supply cable connections to ensure they are properly seated. I just have to comment after seeing this post. I have always enjoyed reading your recommended solutions. Knowledge is power and you my friend have got a lot of it. Kudos to you! That's funny. Like, my wife says "my car won't start," and I say "try replacing the engine. Otherwise, that looks like a promising stack of instructions. I'll have to sit down with my laptop and the dead machine tomorrow and go through that whole post.
Okay, I had some time to troubleshoot this morning. Moving the video card to the other PCI slots tried them all results in no change. Replacing the video card tried all 4 slots results in no change.
powermac g5 with dual screens
We'll see. New graphics card was a bust. It doesn't work in any of the slots on the machine. Methinks the logic board is busted. Show 1 more comment. Sounds like your Mac Pro is starting up properly but its not reading any drivers for your Graphics Card. Take a look at the specs for the graphics card and grab one that matches those specs. From experience, a friend of mine had somewhat of a similar problem if I can recall correctly and the Graphics card that ended up working was an ATI Radeon HD Hope this helps.
Jim Razor jraz. If we can help, let us know as we help our customers all the time - we may not always have the answer, but we will do our best to find the answer for you Actually, I got both machines working, and they've been humming along just fine for several months now.
Connecting a Monitor to Powermac G5 | MacRumors Forums
The trick turned out to be getting the correct video cards installed. I found a guy locally who had a couple of Nvidia cards out of the original machines. These things really hum. Even the "slow" one is pretty spiffy - my son is upstairs playing Doom III on it right now without a glitch. I'm reposting my comment as an answer because I don't think comments trigger an email notification to those of you who might be subscribed to this topic they don't for me, anyway Can any of you confirm that a faulty logic board would cause the symptoms I've indicated?
Hey Andrew, I have the same issue with my macpro I'm a windows guy and I just always use this for video editing but 1 year ago it just stop working. Any suggestions out there?
Physical Aspect and Operating System
The XT Cards have become real turkey's for us They fail for a variety of reasons, dirty, fan failure, bad solders If you need keep using the XT card you can clean the card, check and see if the fan is spinning, and do the shake and bake thing stripping the card and baking it for a few minutes in an oven to see if this might bring back bad solder joints Thanks so much Jim Razor! You were right the culprit is the XT I took it out of the mac pro and heated it up all over the board, back and forth using a heat gun and let it cool and it worked.
Also, if you can recommend the cheapest card that can handle 4K contents for me. Thanks again! There have been quite a few people using nVidia cards most of them have been flashed - places like macvidcards. And if you use an unflashed card without Apple code you will not have an Apple splash screen which could make it difficult to diagnose any challenges you may have in the future. Having the no video issue with my Legacy Mac Pro. Tried different cards that worked previously and startup drives. I am an IT guy so I knew to try swapping memory around. Have taken all cards except the video card out.
galoogahbandpay.ir/images/250/836.php System boots as I can ssh to it. Tried resetting pram. Had Applejack clean the caches and swap file. It has been flashed to 5,1 but it's booted many times since then. Get no red lights on the cpu tray or the system board backplane. Is there a reset button on the backplane? If so, where? Show 2 more comments. Help Translate iFixit. Back Answers Index. Andrew Taylor Rep: 85 4 1. Any ideas on what's going on here? View the answer I have this problem too Subscribed to new answers. Is this a good question?
Yes No. Voted Undo. Score 4.
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Core Xeon X x2 Intro. EMC is Android Fix Kits. A new screen or battery is one kit away. Chosen Solution. Was this answer helpful? Score 3. And there was a twist! And sure enough, the two monitors connected to the DisplayPorts lit up. Except they appeared as a single monitor in macOS. This has to be a mistake, I thought. This is basically brand new hardware on the latest and greatest peripheral bus out there. Is there a driver out there that I need to install?