Power Mac G5 :: Display Shows Gray Screen - Fan Runs High Speed ?
Oct 10, 2007
I purchased my PowerMac G5 in 2003 and no problems till now. My problem is that on startup, the display first shows gray screen with a globe in a white box flashing in the center of the screen. This continues for about 90 seconds --- then the globe in box icon changes to a small file folder icon with alternating face/question mark flashing in the file folder. At about the same time, the fan speeds up dramatically. The fan continues to run at this high speed for about 90 additional seconds, then the fan returns to normal speed, and the startup continues normally to the blue screen. Once startup is complete, computer runs okay. The whole process takes about 4 minutes.
Information:
PowerMac G5, 1.8 Ghz, OS X 10.2.8
Mac OS X (10.2.x)
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Nov 22, 2008
I purchased a used ibook from owc in January and have had it back to them twice for repairs. Lately, it stopped booting up again and they told me to use [URL] to take the mobo out and ship it to Arizona to have the solder refloated. I did and got it back, put it together and it would boot up, only to run for 15 minutes and shut down. Thinking I missed something, I dissasembled it today and reassembled it. Now it turns on with a blank screen, the fan runs on high, and it will go no further. I tried to reset the power manager, reset the p-ram, the hard drive is only a few months old and my brain is getting fried with frustration.
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Apr 14, 2012
From a cold startup my Macbook pro 13 fan runs continuously at high speed.
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Jun 25, 2012
Macbook Air isn't a year old and I don't leave it plugged in ever. The battery might last 2 hours and gets very hot. In addition the fan runs at a very high speed. The computer won't shut down in a normal way. I have to hold the power button down to shut it off.
Info:
MacBook Air, Mac OS X (10.7.4)
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Dec 10, 2007
I have a G5 (Power PC, g5, Dual 1.8 GHZ with 1.25 GB SDRAM, and Mac OS X 10.4.10-phew!) and I recently: added more USB ports using a PCI card, and purchased a non-Apple 22" widescreen display.
Prior to adding USB ports, I was using a hub that ran off its own power source, and used a Samsung 19" monitor.
My situation now: everything starts up fine, but ultimately the fan will kick in at SUPER HIGH and won't stop. I can put my Mac to sleep--which stops the fan noise--but then it won't wake up.
I have run the Apple Hardware test and everything checks out OK. I've also reset the SMU according to directions from this forum; AND I've vacuumed out all the dust bunnies.
The fan runs so loud and so high it sounds like it's an airplane that's about to take off.
Short of bringing in my Mac to a technician, can you recommend anything? My Mac has been glitch free up until now.
Information:
mac G5
Mac OS X (10.4.10)
Tiger
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Dec 30, 2007
I recently purchased an X800 and installed in my G5 1.8DP (OS X 10.4.9) with the intention of having something to drive my shiney new 30" Cinema display. All booted fine and, in glorious wide-o-vision, I spent the next 30 mins playing with all of this extra screen real-estate. At that point, I started to notice that things were not as quiet as I'd initially anticipated.
In fact, the amount of fan noise was so high that I'm not going to be able to use the new card as the machine is part of a project recording studio installation. Doh! So, a quick trawl of the ATI web site lead me to the ROM updates claiming to address fan speed control.
Update to the most recent version of the ROM and no change. Similarly, I've installed the most recent version of teh ATI control panel.
Odd as other people seem to be saying that they're not experiencing the same problem. And strangely, the GFX card fan runs at a low "normal" speed in Safe Boot mode whilst installing the ROM updates.
Information:
G5 1.8DP + Macbook Pro
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Feb 13, 2010
Dual 2ghz Power PC G5 with Leopard 10.5.8Recently had it in for a repair, not with Apple (that expired a longggg time ago) because it would only turn on intermittently. They fixed this problem, citing bad components and also replaced the broken optical drive. However when they gave it back to me it was incredibly loud, they stated that they had to reconnect a fan and that was probably what caused the power problem in the first place. I'm pretty sure though that I had disconnected it unwittingly about a week after the power problem started when I opened it up to change the battery... believing that may be the problem at the time.
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Jun 16, 2009
Does it hurt the computer... If the computer is doing something (watching flash, playing a game) that turns on the fan full speed;Does this hurt the computer? There are a few games I like to play and they turn on the fan at full speed (computer gets hot too, on the bottom.)
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Jul 14, 2009
a few hours ago my mac froze up so i reset it but when i turned it back on it was just gray with a folder icon with a question mark in the middle blinking. i then turned it off and left it alone for a few hours and when i went to turn it on again the screen is just gray with the apple icon and the loading icon under it, which is what always comes up when i first turn it on but it wont change, its been the same for like a half hour now.
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Jan 30, 2007
When downloading via wireless network at a high speed, my PB 12" will consume a lot of CPU power. For instance, 1MB/s, almost 90% CPU.
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Dec 6, 2014
During boot Yosemite shows a grey screen with the Apple logo and a progress bar - is this normal?
Info:
iPad 2, iOS 7.0.3, 64 Ghz. 3G
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May 30, 2012
I have a mirror door g4 power pc that had been having some issues with not turning on, and after testing the power supply, it failed miserably. We placed a refurbished power supply in it from a company in New York and the computer was working wonderfully. I went on a cruise last week and went to turn the computer on for the first time in a week and a few days. The CPU turns on, the unit chimes, the fan turns on and the computer starts to boot up, but it won't boot past the gray apple logo screen. Actually, the first few attempts to boot it resulted in a blue screen with gaint apple logo and spinner; it wouldn't advance further. After several restarts and resets, I got it to come up into the normal gray screen. On several attempts it wouldn't boot further than this. On two occasions now though, it has moved past the gray screen to normal operation (it takes about an hour for it to get to that point though) but with some kind of errors. I get the side bar, but the gray panel on to with "file" ect is gone and my HD icon never comes up. The icons on the sidebar do not respond when clicked. The computer will not boot from the OS X disc.
Info:
PowerMac, Mac OS X (10.4.8)
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Dec 20, 2007
I am interested in adding a webcam to my desktop Imac (power pc)- Isight is no longer available- an option that I found is the Ecamm Image- but apparently it is USB and not firewire and it will only run with high speed usb- how do I know which type is on my computer? I checked system profiler but quite frankly wasn't sure of the designations.. does anyone have any experience with this camera, by the way? is USB 2.0 by definition "High Speed"?
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Nov 23, 2007
I started this topic on the Garage Band forum because I was having trouble with Garage Band '08 when my computer crashed and will not restart afterwards. Garage Band was crashing 2 out of every 3 attempts at recording, and I would have to use Force Quit to escape and start over. Then, while I was in the middle of a very complex project involving Garage Band, iTunes, Finale (music notation program), and Microsoft Word, the computer froze up and I hit restart, thinking that would solve the problem. Big mistake - the computer has not been able to restart since then. I have a late 2005 G5 power mac with 1 GB of memory, 230 GB hard drive (or something like that) and no additional gizmos installed, running OS X 10.4.4. I had upgraded to iLife '08 a month or so ago and have had problems since with unusual crashes and freezes, especially involving Garage Band '08.
When I boot, I get to the gray opening screen with the gray apple logo and the spinning gear (is it really called an "intergalactic frisbee?"), and no further. The fans come on (and begin to ramp up to a huge noise after two minutes or so), the white LED light comes on steadily. I've disconnected all peripherals except my keyboard and mouse (Kensington USB keyboard and Logitech Mouse, both of which seem to work OK still). I can use the keyboard to open the CD/DVD player, and I can start the computer with both the Apple Installer disk and with Disk Warrior 4.0. I've repaired everything I can find with both programs, verified everything available, used Disk Warrior to examine corrupted files, and removed all the .plist files that it said were broken and could not be fixed. The only thing I can't find is that it says I am missing a "tmp" folder in my HD/private/ folder, which I can't seem to locate on the directory on Disk Warrior. Both programs say that all my hardware is fine, and that everything else is OK too. Puzzling. I removed the battery and tested it (it was OK), replaced it, and reset the PMU button on the motherboard even though I know all you have to do is unplug the back for a few minutes or so.............
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Aug 26, 2009
Last night my fan kicked into high gear all of a sudden. I shut it down overnight and when booting up this AM I find it still running on high...quire noisy, of course. Is there something overheating? How to make it run at normal speed?
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Apr 15, 2010
I wanted to ask for some advice on getting a new 15 inch MBP. I currently use a 2.2GHZ SR MBP with Anti Glare Screen. The computer works fine after a recent mother board change but I'm concerned about a future GPU failure. Applecare expires in June 2010. I was waiting for the refresh before buying and was wondering if I should go with the refurb 2.66GHZ MBP or a new i5 model. My priority is an anti glare screen and I notice that I would need to buy a high resolution screen in order to get that option on the new models. I'm not a power user and don't play games. My concern on the new model is that the text will be too small. How does the processing power compare on these two models and is the high resolution screen still readable for less than perfect eyes?
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Jun 29, 2012
IMac mid 2011 - 512 vram - 1 tb HD - 14 gb ram - 2.7 ghz i5 - display 27" inch
Gray spots or shadows in the internal display / screen.
Info:
iMac (27-inch Mid 2011), Mac OS X (10.7.4), gray spots on the display imac2011
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Jun 24, 2014
Last week my macbook pro started have gray or blue screen problem, it won't boot all the time I turn on, instead I will turn into gray or blue screen and won't do anything else, the OS is to the latest version, and if it start normally it goes blue or gray screen everytime I use final cut pro, I mainly use this mac for editing videos, I try everything like safe mode, I even format the hard drive but the problem still there...
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Apr 30, 2009
Sorry for the title but I couldn't think of anything better. Hopefully I'll be able to explain my problem. I have a MPR 2.53 ghz, 4 gig ram, I'm using Safari 4.04. I am using the WIFI at a guesthouse in Thailand (but I had the same issue in China, Vietnam ...). I ran a speed test and it said download 7mb/sec and upload about 1mb/sec. I have an "app" that says bandwidth in 1.3kb/sec out 1.0kbs. I thought maybe it was Safari so I downloaded and installed Firefox. firefox gives me similar speeds. When I downloaded Firefox though I had a download speed of over 1mb/sec. But as soon as it finished downloading the speed went back to around 1kb/sec. I have rebooted my MBP many times. I did some Google searches but didn't find anything helpful.
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Jan 7, 2010
I have a MPR 2.53 ghz, 4 gig ram, I'm using Safari 4.04. I am using the WIFI at a guesthouse in Thailand (but I had the same issue in China, Vietnam ...).
I ran a speed test and it said download 7mb/sec and upload about 1mb/sec. I have an "app" that says bandwidth in 1.3kb/sec out 1.0kbs. I thought maybe it was Safari so I downloaded and installed Firefox. firefox gives me similar speeds. When I downloaded Firefox though I had a download speed of over 1mb/sec. But as soon as it finished downloading the speed went back to around 1kb/sec. I have rebooted my MBP many times. I did some Google searches but didn't find anything helpful.
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Mar 17, 2012
I have a new imac. I was stuffing the web, tried to upload a picture, the website locked up, so I hard booted my iMac. Then when it came back on, and I get is the start up sound, and a gray screen, nothing else. Its been 5mins now!
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May 15, 2012
When my wife starts her iMac the screen stays gray and in the center of the screen is a folder with a question mark. I am not sure how to get it running.
Info:
iMac, Mac OS X (10.7.4)
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Dec 7, 2014
Am getting a gray snowflake pattern on display screen (using older Mac pro). Did something fail in computer or is this a hacking job? Right now I'm using another MAC to send this.
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Jul 1, 2014
my MacBook pro display that there are frequently horizontal grey lines going across my screen. I've noticed it mostly when the display color should be grey or white, but that's not always the case. It occurs mostly in my Google search bar using Firefox, and also occurs heavily on Facebook in the comments/reply section of a post. Outside of the browser I've also seen it when looking through some personal photos, especially of the sky, the lines will seem to sort of outline different contrasts in white or light tones, kind of like the Magic Wand tool would do in Photoshop. The lines do flicker and change when scrolling.I attempted to snap a photo with my iPhone the best I could.
My specs:
-13" Macbook Pro (2009)
-Intel Core 2 Duo 2.26 GHz
-NVIDIA GeForce 9400M
-Resolution: 1280x800, 32-bit Color
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May 20, 2010
Pressing the power button on the main unit, the button lights, then flashes, long-short, long-short, etc.Nothing else happens - no screen, no chime, no disk activity. can I get this (and other) Power-on Self Test (POST) information?
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Jun 7, 2010
I got a Matte screen 2010 MBP. It comes with higher res screen. I personally find the text to be a little bit too small for my liking. Is it possible to uniformly make everything bigger so the higher res only make image and text sharper and not smaller than original resolution?
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Oct 25, 2010
MacBook Pro 2.16 Intel Core2Duo with 2 GB 667MHz SDRAM runs very quietly when being used. When left with lid closed overnight but still logged in, each AM the the fan is running loudly at high speed and the case is hot. As soon as I open it and it starts up, the fan quiets down and the case is cool in a few minutes. The temps range (when open and quiet) from 90-125 F for various components and the fan speeds are about 2000 RPM. Why should it run hot when closed and asleep.
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May 7, 2012
Fan runs on high all the time except when put to sleep or off? Vents are clear no blockage.
Info:Mac mini, Mac OS X (10.6.8)
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Jun 18, 2012
Macbook Air won't shut down and often the fan runs at a very high rate without stopping. I do notice it seems to get hot on the bottom more than in the past. Any suggestions as to what I should do, I can't keep holding the power button down to shut off the computer.
Info:
MacBook Air, Mac OS X (10.7.4)
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Apr 4, 2012
My computer displays grey screen and apple logo for 10 minutes or more during start up and shut down. Sometimes it refuses to shut down. This issues started after installing OS lion. What do I do?
Info:
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