Power Mac :: What Steps Need To Take To Isolate A Graphics Card Failure In A Power Mac G5
May 29, 2012
a friend recently gave me a g5 power mac that had some issues, and the failure was described as intermittant. The machine supposedly would work properly when booted and start freezing up after time, but if turned on the next day it would work properly for some time. I assumed it was an overheating issue, but apperently there is more to the picture. I have tried booting the machine quite a few times and the display always reads no signal. The machine sounds as if it were booting normally, but there is not output. At first I assumed it was my display cable, which was a DVI-D single link, however the DVI-D dual link cable leads to the same result. Is it nessicary to have a DVI-I cable? None of the error LEDs light up on the motherboard. After doing some hunting I haven't found anyone with the same issue, but I am wondering if I should assume the graphics card is dead. What steps do I need to take to isolate a graphics card failure in a power mac g5?
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Oct 8, 2007
I hav" a "late 2004" G5 2.0 dual processor. To upgrade graphics card, I find many require a power supply splitter. Do I have a molex 4-pin connector? I can't see the location inside the box.
Information:
G5 dual 2.0, 2.5Gb
Mac OS X (10.4.3)
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Nov 2, 2009
I bought a sapphire radeon HD 4870 that was flashed with mac firmware. I've never installed a video card before. Do I just turn the machine off, put in the card, and boot up? Or do I need to install drivers before I put in the card? Also, which card slot do I put it in?
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Jun 8, 2010
I'm referring to this thread here:
[URL]
There's 2 images that are missing so I'm a bit confused. It seems pretty basic but I have to ask just to make sure. The cables that came with my card looks exactly like the image in the post. It has 2 inputs PER cable. With the molex split, I'm guessing I plug only 1 in per cable, so does that mean the other input is left hanging with no connection? Is there a specific input on the cable that I use? I notice there's only 3 colors with yellow and black leading to different holes and the brown one leading to the same hole. It seems so basic, but so confused without the 2 missing pictures.
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May 6, 2012
I bought a Referb 09 Mac Pro. I purchased a Gigabyte HD Radeon 6850. The Power cable that came with that card is obviously for a PC.I just need to know what cable I need and where I can get it?
Info:
Mac Pro, Mac OS X (10.7.3)
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Mar 28, 2008
I'm looking on cragslist right now for an older powermac to use as a media hub and I think I found one. It appears to be an AGP G4 PowerMac (500Mhz-ish). I have a 256MB graphics card I was using with my PC, I was wondering if I could plop it in and it would work? I know it's probably a pipe dream, but it doesn't hurt to ask
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Feb 6, 2010
I'm upgrading to a Nvidia GeForce 8800GT graphics card on my 1st gen Mac Pro. I know how to install the card and that it needs aux power to work. The card has the aux power cable, but I'm not sure where to plug it in. There is a egg crate looking connector near the fan. Is this the aux power connector? There are two little prongs on the cable? Do these prong have to go into a specific side (i.e. positive and negative).
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Apr 7, 2012
I have a Dual 1.8ghz G5 with 6 gig of Ram and wish to upgrade the Graphics Card. Can anyone tell me a decent card that would improve my system and that would be compatible with the machine. I currently have a 64mb card installed.Â
Info:
PowerMac, Mac OS X (10.5.8)
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Mar 21, 2012
Do not want a nuisance to escalate into a serious problem thru benign neglect. Random black screen -- Turn monitor off then on, and all comes back fine. No loss of power in machine, no fan quirks, no overheating. Is it the Monitor? or the graphics card?
Info:
PowerMac, Mac OS X (10.5.8), 6GB DDR2 SDRAM
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Oct 24, 2007
Will a NY GeForce 6200 256MB Graphics Card work on mac with a PCI slot?
Information:
Mac OS X (10.3.8)
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Apr 9, 2012
I have a G5 Power Mac dual 1.8 running 10.5.8. It powers a radio stations automation system. I have it set to power on after a power failure but for some reason it will not power on. I have to come t the station and reboot the system manually.
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Feb 6, 2012
What are the steps to up grade an old power mac G 4 from OS X 10.3.9 to Snow Leopard? Is it possible or recommended? With the current OS I can't download sfari upgrades or other programs.
Info:
PowerMac, Mac OS X (10.3.x)
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Mar 20, 2010
Stupidly installed this: [URL] wanting better performance from my Nvidia 8600M GT 512Mb. Was asked to restart after install & wouldn't boot (only getting the grey then blue screen in 10.6.2) Am now unable to boot up in anything other than Safemode. While installing update is gives the option to revert, tried this in safe mode but it ends in a fail. If it can revert then somewhere is a backup of the original driver yeah? Where is it & can restore it manually/rename it as the original? Tried to use TimeMachine but won't boot for me in Safemode.
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May 15, 2012
I have an old power mac and want to get it online if possible .Does anyone know if ots possible to install an airport card into it and get online that way ?
Info:
PowerMac, Mac OS X (10.4.11)
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Mar 19, 2010
I installed USB Overdrive (a program), I clicked on restart and my iMac never got up. When I start it, the HDD and fans do work. But there is no boot sound, and when I change sound levels, I cannot hear it. I think, it never makes it to OSX. It does not load the OS. I dont think it is Graphics card (HD2600) failure.
When I try to reset PRAM, nothing happens. Usually I must hear it restart again with loud boot sound but it never happens. Also my keyboard does not seem to work, as the CAPSLOCK button does not light up, when pressed. I changed RAM to different moduls, still the same. I checked the iMac RAM on a different computer, it works. Maybe USB Overdrive killed the USB slots? As my USB keyboard does not seem to work
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Jul 21, 2008
My problem is that in a morning when i turn on my mac G5, it lights and then fade and also make a sound like PAC.
But is it from the power supply and also how to avoid this accident.
I just send it to the seller Apple to repair it, but i need to wait, maybe got it within 1 or 2 weeks.
my Second problem is that if at night, i let my mac G5 auto boot, anyone can tell me if it may got this problem same the first one when my G5 turn on by itself.
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Apr 22, 2008
G4 733 D/A , 10.4.11. This morning there was a few second power failure according to my wife. Ther G4 shut down from the power failure. I didn't have "restart after power failure" selected in the Energy Saver prefs. I restarted the G4 when zi got home and after I was done with it, selected SLEEP from the menu. The G4 wouldn't respond to sleep. I logged out and tried SLEEP from another user acc't and from the login screen. I then went into the Energy Saver prefs, made sure everything was as I wanted ( 5 min display sleep, 10 min HD sleep, and "put disk to sleep whenever possible". I then rebooted and sleep still wouldn't function.
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Mar 20, 2012
While working last night I got a short power failure in the house. Right after that when I tried to start my mac mini again, it booted up to the log in scren ok, but when I try to login, a white screen appears and then it goes right back to the login screen.Â
Things I have tried: Tried to fix disk in recovery, no errors were found.used resetpassword in Terminal for my user account I can't get into safe mode, I'm trying to hold the shift and release it before progress bar, but safe mode doesn't come up?
Info:
Mac mini, Mac OS X (10.7.3)
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May 22, 2012
why i have to unplug the power cable from the back of my imac after every power failure at my home to get the imac to boot up. I've tried resetting the surge protecter and unplugging there. However, the only option is to unplug the cord from the back of the monitor/imac before it will boot up.Â
Info:
iMac, Mac OS X (10.7.4)
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Jan 4, 2010
Have a white iMac (2Ghz Core Duo, 20" screen). It has started misbehaving slightly: it usually takes two or more tries to start from off, and has to have a hard restart if I've let it go to sleep on its own.If I have made it sleep myself, by pressing the power button, it always comes back, but it refuses to do so if I let it sleep on its own.My local reseller suggests that it may be a logic board fault: I'll have to pay ?70 to diagnose this and, if that's the case, the repair is uneconomic, meaning I've also wasted
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Aug 6, 2010
I left my iMac on overnight last night to finish downloading some stuff. I woke up and all our clocks are flashing, so we must've had a blackout. Anyway, I went to check the progress of my downloads, and the iMac was off. I pushed the power button and nothing happened. No fan noise, HDD noise, nothing. I've been trying for almost two hours now and nothing is working.
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Feb 19, 2012
I have a PowerMac G5 computer, running OSX Version 10.4.11. Up until yesterday, the computer performed flawlessly. Suddenly, yesterday, I get a message from Firefox (the browser I usually use), telling me that my Flash Player had been disabled because I did not have the most up-to-date version of Adobe Flash Player. When I investigated, I found out that the newest version was NOT compatible with my computer. So I tried reinstalling the most recent version of Adobe Flash Player that IS compatible and have had no success. When I go in to System Preferences and click on the Adobe Flash Player pane (under other), I get a message reading "could not load Adobe Flash Player." Someone out there must know how to handle this. I'm not in a position to purchase a new computer, and I desperately need Flash Player for some of the websites I use quite often.
Info:PowerMac, Mac OS X (10.4.11)
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Apr 22, 2012
what to do when Mac OS X v10.7 Lion download stops, because of interruption of power supply?
Info:
iMac, Mac OS X (10.6.8), Trying download Mac OS X 10.7Lion
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Sep 6, 2009
My IMac crashes sometimes very suddenly, like in a power failure. It doesn't force quit or shut down, it just goes like somebody pulled the plug. It's usually possible to start it up again after 30minutes or an hour. The plug and lead seem to be fine. I tested it on another mac. The obvious suspicion would be overheating, but how can that be caused so suddenly (and how can I fix it)? It's an IMac Intel core duo, 20", 2 ghz, 2gb ram from 2006. I'm running Mac OS X (10.4.11) 2006.
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Mar 15, 2012
Cannot turn on iMac duo core after power failure. Tried plug - unplug. What's next?
Info:
iMac 2 GHz Intel Core Duo, Mac OS X (10.4.9)
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Sep 9, 2014
I have a 2011 MacBook Pro 15 inch, and the Messages application has been installed and functioning well for the past year. A few hours ago, my MacBook ran out of battery and died on me. This caused a number of applications to function incorrectly, however, after a restart all of the applications EXCEPT Messages work correctly. Now whenever I start up the messages app and try to send a message to one of my contacts, their name appears in red and I receive a message that says "###-###-#### is not registered with iMessage." This occurs even though the contacts DO have iMessage and were working in the past. None of the contacts work currently.Â
I tried signing out of Messages, restarting my computer, restarting iMessage from my phone, deleting my plist file, but none of these seem to alleviate the issue.
Info:
MacBook Pro, iOS 7.1.2
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Dec 8, 2014
While installing windows 7 via bootcamp tonight, I suffered a power failure a minute or two into installation. Upon reboot, I have only a black screen with flashing curse. I have attempted to reboot in safe mode, recovery mode and diagnostic mode, but I think the machine is not recognizing the keyboard.
Info:
iMac, OS X Yosemite (10.10.1), 2014 21.5" Fusion Drive
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Mar 9, 2008
Yesterday my screen (30" Apple Cinema) started showing symptoms of graphics card failure, jagged lines across the screen. I rebooted my Mac Pro and it was gone. Then it happened again an hour later, this time the machine didn't boot, I get the Apple logo, and then it hangs up and the screen is shifted to left (I get apple logo on left side of the monitor instead of the middle) and jagged lines all over.
So the first thing I tested was using Target Disk Mode, it works. I can access my Mac Pro's internal HD's by TDM from my MacBook Pro. Then I tested single user mode, it does boot, I can't read what's written since the screen is shifted to left, but if I type (without seeing) reboot and hit enter, it reboots. So I assume the single user mode is working.
What else can I try to 100% make sure it's my graphics card that failed and everything else is ok with Mac Pro? I already ordered a graphics card replacement but I wouldn't like to be surprised if the Mac Pro still doesn't boot when the card arrives. It won't boot from Apple Startup DVD either. Same thing happens, gray logo then kernel panic with jagged lines all across the shifted screen.
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Oct 2, 2009
Yesterday my screen (30" Apple Cinema) started showing symptoms of graphics card failure, jagged lines across the screen. I rebooted my Mac Pro and it was gone. Then it happened again an hour later, this time the machine didn't boot, I get the Apple logo, and then it hangs up and the screen is shifted to left (I get apple logo on left side of the monitor instead of the middle) and jagged lines all over.
So the first thing I tested was using Target Disk Mode, it works. I can access my Mac Pro's internal HD's by TDM from my MacBook Pro. Then I tested single user mode, it does boot, I can't read what's written since the screen is shifted to left, but if I type (without seeing) reboot and hit enter, it reboots. So I assume the single user mode is working.
What else can I try to 100% make sure it's my graphics card that failed and everything else is ok with Mac Pro? I already ordered a graphics card replacement but I wouldn't like to be surprised if the Mac Pro still doesn't boot when the card arrives.
P.S. It won't boot from Apple Startup DVD either. Same thing happens, gray logo then kernel panic with jagged lines all across the shifted screen.
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May 3, 2012
I have macbook pro and use lion. i have maxell dvd+r 4.7 dvd disk which actually works when burning jpeg files. now i want to burn several pdf files that total small 108.6 megabytes. i create a burn file, put the pdf files in it select burn, select the slowest burn speed and i get the message: The disc can’t be burned, because the device failed to calibrate the laser power level for this media.Â
Info:
pro, Mac OS X (10.6.4)
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