Wargo says that as soon as he removed the plastic strips, he could successfully remove the aluminum door leaving the clear heat shield in place without freezing. There is a problem with some currently? Some users have had success eliminating this problem by using the age-old process of resetting PRAM. MacFixIt reader Robert Cramer writes:. The procedure is in the Troubleshooting section of the G5 Manual. In this case, it may not be the actual zapping of the PRAM that is doing the trick. Performing the PRAM reset causes your Mac to restart continuously until you release the key combination.
It may simply be the repeated restart that is allowing users to startup properly. It booted up with the screen working for two days. Today, the first startup was black again: no video was initialized. Restarting directly again and the video was there again. I love the flashing LEDs on the modules.
This creates a problems closing the door to the Power Mac. The sensor knows the door is not closed right, so the PowerMac is throttled down because of a problem with cooling. As this report indicates, you should always check with the manufacturer of your PC RAM module to make sure it is guaranteed to be G5 compatible. A moderator on the Apple Discussion boards has now provided official confirmation that this message may be erroneous, and suggests that readers who receive this or another fan failure message open the G5 and check that both the drive bay fan and the PCI slot fan are spinning.
If they are, nothing is wrong. If either fan is not spinning, the moderator suggests taking the computer to an Apple Authorized Service Provider for maintenance. When it doesn't crash it fails to encode or go extremely slow. I had this problem on all three models at Two different Apple Stores. The Apple representatives were dumbfounded as well.
This problem only occurs if you are using an iDVD install from the iLife disk or another source. These releases do not seem to work with the Power Mac G5. Try deleting all traces of iDVD from your computer and re-installing the application from the media included with your G5. You should be able to encode properly.
MacFixit reader John Bennett writes "This effectively prevents one from using the full capabilities of the Radeon card, i. Until a fix is available it would seem to be better to not buy a G5 from Apple with the Radeon Pro pre-installed, and instead install the retail version Pro card on your own. Another feature that is not supported with OEM cards is VersaVision, which allows you to rotate your desktop in either direction by 90 degrees for a portrait orientation, or flip it degrees for an upside down view.
While the retail version of the card comes with a control panel that enables this functionality, the OEM version, shipping pre-installed in G5s does not. Unfortunately, it looks like users will have to wait for a new software release from either ATI or Apple to gain this and other functionality, as it requires the addition of a new OpenGL extension. Separately, users are complaining about the noise generated by the Radeon card.
It sounds much louder than my single G4 As reported in other threads, I did sound level tests on it which showed a dB noise level at idle when measured from 1" in front of the system using C weighting. For comparison sakes, my G4 is under 50 dB so my dual G5 is over twice as loud. This, in conjunction with the fact that other M-Audio cards are not PCI-X compatible, effectively eliminates the company's cards from current compatibility with G5s.
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Be respectful, keep it civil and stay on topic. We delete comments that violate our policy , which we encourage you to read. Discussion threads can be closed at any time at our discretion. Don't show this again. A MacFixIt reader notes that this may simply be a drawback of certain optical outputs: "The sound dropout seems to be a drawback of the way optical links send data -- the exact same thing happens at the begining of a track on a CD being played with my Laserdisc player or DVD player, or at the layer break when the audio stream breaks as well on a DVD I just recently had to go through the entire process again and after this the machine is working ok again.
The local "Genius Bar's" are less "than" where I live. One did not even know how to remove the glass screen on my mid iMac 27"? It takes about 15 seconds and the only tool required is finger nails That's very strange. My best advice, then, is to take it to a different Genius Bar or somewhere else that has some expertise in fixing this type of problem. My laptop kept switching off and I took it to the Apple store. After more than a week, they told me I need to change the logic board and the Battery as the SCM memory was full and need to change it.
I am very familiar that the apple store 1st solution would be to replace half components. Would you rest work with my laptop? I think its daylight robbery. I would highly appreciate if you could mention an alternate way fix this if the above method doesn't work.
Reset the SMC
You also fixed my dodgy trackpad which I didn't even know would be fixed by this. Thanks sooooo much, I owe you one. No problem! Really glad that it helped.
My MacBook Pro has been acting weird, and today while in light use my acreen turned white with horizontal gray lines so I shit off and it now appears to turn on with a gray horizontal line screen and the gray bar below the logo only fills halfway and doesn't turn on. I'm in shock and scared the laptop is toast. Could you please guide me with what may be wrong with it and what is the safest next step?
Apple has a special program going til Dec 31st where they will replace your logic board for free since and macbook pros have a common problem with the GPU. Grey lines like that is the start of your GPU going bad. I'd take it in and have it fixed for free while you still can.
Working with Pre-Intel Macs – A Blog
My Mac Mini claims it has a max capacity of 8 GB but crucial. Is this true? I've never heard of it working that way, but it certainly seems possible. I'd give it a shot and see what happens. Thanks for this post, Dann. Hi all. Could this options solve my issue? Thank you. This happened to me after installing El Capitan, turns out my serial number was wiped from my computer and therefore I couldn't access those you mention. Also had trouble with switching my computer on etc. I had to visit the Genius Bar at the Apple store and while they managed to rewrite my serial number, they couldn't work out why my computer would take multiple attempts of holding down a number of keys in order to switch on and suggested it was time to get a new one!
They did not mention an SMC reset and did not attempt this. I came across the SMC reset from googling and it seems to have sorted out my macbook air. Surely Apple should have told me about this, my macbook air showed all the signs of needing an SMC reset. I've never heard of that serial number issue; that's really weird!
Did they say how that might have happened? Glad that the SMC reset seemed to help—is your computer still working alright? And yes, I'm surprised that the guys at the Genius Bar didn't discuss that with you. Seems pretty likely that they would have known about the warning signs and potential fix. Unfortunately after posting this I had issues again where it would shut down when the progress bar was at a certain point.
I paid someone to try and fix it he mentioned replacing the hard drive but all he did was wipe everything, including my serial number again. It did work for a few days though and it still switches on alright but now where my wifi sign is it says wifi: no hardware installed. After looking online it seems the remedy for this is also smc reset which isn't working.
Apple don't understand how my serial number was wiped, the guy said he'd never seen it before but I only knew to check mine because of others it had happened to after installing El Capitan, he said it could possibly be due to that. I think my MacBook has had it, if Apple can't help me I don't know how to find someone who can. Hello this happened to me before so i needed to restart my pram and it worked cntrl alt p r but it happenednagain and it doest work anymore Makesthe sounds correctly but The screen says black. Moving what was plugged in around and restarting seemed to fix it.
But now when ever my computer goes into deep sleep or shits off, the fan kicks into high speed mode. I had the same issue with my old iMac but back then you reset your SMC by holding down your power button for 15 secs. I've never heard of a USB hub doing anything like that. Have you found a solution to this issue yet? Sounds like something Apple might have to fix. I am going to see if doing a clean instal will work; waiting to have internet reinstalled in my apartment. There are reports of this happening with USB hubs. I had the same issue years ago with a iMac, back then the SMC could be reset by the power button.
Not any more. It's your hub. They will sometimes trigger your mouse Unplug it and you will not have the issue anymore. Thank you! She was suitably impressed! Before I wrote this article, I wasn't aware of it either. Turns out it's extremely useful!
Hopefully this article has helped get the word out—I'm sure there are a lot of people who could benefit from knowing what it is and how to reset it. This error message pops up: "You are unable to log into the user account at this time I am having to reset the pram and the smc every single time I turn on my computer.
I can't put it to sleep of I have the do the pram reset. Whey is this happening? What can I do? You might want to bring your computer into an Apple store and have their techs look at it. That's not a problem I've come across before. Can you be more specific as to the steps for a machine like mine? I have a Macbook Pro retina. You say "On the built-in keyboard, press the Shift, Control, and Option keys on the left side and the power button, all at the same time.
My issue is that I get a popup about icloud password every time i boot up. I recently switched to two step verification, and I think it's asking for an app specific password. Power down the computer normally 2. Ensure power cord is plugged in 3. Does that sound like the physical steps you're using?
If so, how can there be no confirmation that something is happening like with PRAM, at least it dings over and over again if you hold down all the buttons. Maybe I'm just doing it wrong. Yes, that should say "release all four keys at the same time. That's why "turn on the computer" is the next step. So you're correct in thinking that there's no confirmation—I'm not sure why that's the case, but I've never had any sort of confirmation on my machine.
What happens when you enter your iCloud password? If you look closely you will notice on the MagSafe power cord where the magnet plugs into the side of the computer the tiny LED light will change from Amber color to green and back to Amber that is the confirmation that the SMC was reset. The MagSafe light indicator, you mean? I would imagine that it is. Have you tried resetting the SMC on your computer?
I literally cannot thank you enough. You saved me so much time and money and Apple-related stress, this was the only thing that worked! I'm really glad to hear that it was helpful! This is a common fix that a lot more people should know about.
- What Is the SMC in a Mac?.
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That's a problem. Everywhere I've read the SMC advice, it says to remove the plug "for 15 seconds". I assume it means "at least" 15 seconds - or is the time critical?
Special Report: Troubleshooting the Power Mac G5 - CNET
As far as I know, it's at least 15 seconds, and it doesn't have to be exact. As for turning your computer off at the wall. I'm not sure. If you want to reset the SMC, though, I'd use the procedure above. You shouldn't need to reset it every night. That's a tough one. I'd head to an Apple store. I'm not sure if there's much you can do about that! Hi, read through all of these posts and wondering if anyone can assist? I have a 15" Macbook Pro with Retina display that is just over a year old and it will not turn on.
I'd bring that to the Apple store; if neither of these resets are helping, you might need some more serious work done. Let us know how it turns out! Hi Jeff, did you manage to fix your mac? I have the same Macbook with the same problem and mine is only a year old as well this month. Please share any new information you might have. Hello, I have an MacBook pro that is randomly shutting down on me anytime that I try to run some hefty programs, and even sometime if I run more then one program. Sometime just starting her up make it shut down. I have trying to restart the SMC, but I am not sure if I did it correctly or that was just not the solution.
Resetting G5 PMU
Have you tried resetting the PRAM as well? Also, means the computer's four or five years old, so you might be having some age-related problems; that's about how long mine last when I use them all the time. I did the shift safe mode restart thing and it stayed loading for about 25 minutes, now I just tried restarting the pram but this is also taking a while to change, how long does it take until it boots up?
I started having problems while plugging a USB in the computer and then it froze. Now I just have a grey screen with the apple logo and a loading dotted circle moving. It certainly shouldn't take 25 minutes to boot. Hopefully that'll get you back up and running! Hi,I have an 06 macbook, for a while the battery has been unrecognised and it shows the x symbol where it should be a thunderbolt Iv reset the smc with an initial change but then defaults back to the x symbol..
This evening I replaced the connection from the logic board to the battery and still no further forward after the resets I checked with a Mac repair shop and their is no fault with the battery I'm at a loss really, any ideas? Thanks in advance, Dec. Though I have to say that you've been able to keep a Macbook running for 9 years!
That's pretty impressive. After doing a little research, I haven't come up with a whole lot on this. Some people have seen the X symbol when they have a bad battery, but if the shop says that the battery's alright, and you also replaced the connection from the logic board, I'm not sure what else you can do. Call Apple, maybe? They might be able to help out.
Thank you. I've tried all the recommended resets but it won't start so I'm considering replacing either the logic board or the PSU. Here are the symptoms: 1. Single click sound near the PSU when the power cable is plugged in. When the power button is pressed: - a. The power light comes on and stays lit as long as the power button remains pressed - b.
The 2 CPU fans are momentarily jolted, along with a single click sound so some power seems to be transmitted 3.