My G3 b&w tower seems to have an intermittent problem with booting - every few times I go to boot there is no power. I have tried it with different power cord/socket etc but it seems to make no difference. Any ideas what this could be?
View 2 RepliesSometimes when I push the power on button to boot up, the boot is incomplete and fans begin racing. I power off and try again, usually three to five times, each time getting a little further in the boot till finally it is successful. My Apple disk diagnostic detects this logic board error: 2FAN/4/8: Fan for backside. The problem has been around for a year, maybe two, but it is getting worse and worse.
What other things might I do before jumping to the expense of replacing the logic board?
I have run permission repairs, run ONYX maintenance routines, blown out the dust, scanned the surface of my hard drives...
I keep reading and searching for things to try. I'm going to replace the computer battery now. Should I press the SMU reset button?
I've been looking at the long list of read outs in my console and system logs, but don't know how to make sense of it. My system was pretty stable until about a month ago when I tried to update to QT 7.3... at least I think that's what started a host of software problems... including lots of Safari crashes, and problems exporting Final Cut Pro movie files. So I've got what I think are hardware and software issues. But for now I'd like to focus on the hardware problem discribed above with the logic board error. I only mention the other issues in case they might all be related.
I run a dual 2 GHz G5 PPC (OS 10.4.10) - for the past 4-5 months I've been getting freeze ups for no apparent reason. These nearly always happen around the same time in the evening (around 11 pm) - although not every evening - probably 2/3 times a week. They can happen whether there is any activity on the computer or not. There is never anything on the console log at the time of the freeze up. I'm putting off an archive and install - though I've tried everything else - Disk First aid, Disk Warrior, permissions, fsck, cache cleaning, font checking, Memcheck, re-booting in safe mode, re-applying combo update, resetting the PRAM etc. - I've even tried replacing my secondary hard drive. I've also tried watching the Activity monitor around the problem time - unfortunately this is when it decides not to happen.
The Mac appears to run ok during the day (usually on by 7.30am) One other slightly odd thing is that sometimes at boot up a warning screen will appear and vanish in a 'nanosecond' - I think it could be the device removal warning -though nothing apart from my two internal drives may be connected. I also get this in the start up log 'family specific matching fails' on a number of usb items. Hope someone can help I'm running out of ideas.
Information:
G5 Dual 2 Ghz PowerPC
Mac OS X (10.4.10)
I have an early 05 PowerMac Dual 2.3 machine that's making some intermittent clicking noises over the last few months. There's no pattern - sometimes it happens every few minutes, sometimes it won't happen for hours. The clicking sound is loud - and is accompanied by, what I can only describe as, a bit of a buzz sound. At first I thought it could be my HDD or superdrive, but I think the click is way too loud. Now the question - is this my power supply getting ready to give? The machine does not fall in the range of the power supply repair program. I'm already in the process of adding a second HDD to clone my main drive just in case.
View 1 Replies View RelatedFor a while now, I've been getting a strange whine out of my mbp core duo right above the power button. I don't believe it's the common "whine" others have complained about as I've tried brightening the screen/turning on the camera. Tapping on the case will stop the sound for a bit, but it soon returns. The sound comes and goes, but in incredibly irritating.
I have a sample here. You may need to turn up the volume to hear it. Yesterday I replaced the right side fan, but the sound is back. Now I'm thinking it's the speaker, but don't want to spend more money on parts unless I'm relatively confident of the problem.
I have a G5 that has started intermittently booting up with a totally blank screen - not blue, no video at all. Sometimes on reboot or after resetting the PRAM it works again.
View 2 Replies View RelatedI have recently installed new RAM and an SSD in my late 2009 MacBook Pro, running OS X 10.6.8, and it now frequently hangs when I try to start it up. Here are details:
In recent weeks I noticed signs that seemed to point to a failing hard drive. I took the machine to a Genius Bar. The genius tried Disk Utility and a quick diagnostic and could not reproduce an error, but he noted many, many I/O errors recorded in a log file.
He said I probably had a failing disk, but it might be a cable issue. He gave me two options: leave the machine with Apple overnight to run diagnostics and perhaps repair if the problem was confirmed, or just take a chance and replace the drive myself, for less money and less downtime.
I went to a local computer store, and the salesman there noted that I was using relatively little disk space. He suggested that I swap my failing 160 G disk for a smaller, 120G solid-state drive, which happened to be on sale. I agreed and also bought some new RAM.
I installed the drive and RAM, partitioned the disk (with HFS journaling), and restored my files with Time Machine. For that day and the next, everything worked perfectly.
The second day after the installation, the system hung while starting up. The Apple logo appeared, the gray spinner appeared, and it just spun. I tried resetting PRAM. I tried safe restart. I started up from the install disk and ran Disk Utility: no problems found. I repaired permissions. I took out the new RAM and put back the old. In some cases after trying these steps, the system booted fine — once. In others, it would not boot the first time, but would boot on the second or third attempt. I reinstalled OS X and updated software. The problem persisted. I installed some freeware to enable trimming the new disk. No better.
I have booted many times in verbose mode. During the unsuccessful boots, there is usually a message "Bug: launchctl.c: 3557 (23930):6 ioctl(S6, SIO CAIFADOR_IN6, &ifra6) ! = -1". The next line is the command "fsck_hfs", and the machine hangs. Eventually it sometimes spits out "launchctl: please convert the following to launchd: /etc/mach_init.d/dashboardadvisory.plist". If I let it go for a long time, I sometimes come back to find a long string of I/O error messages, to the effect that media was expect to be there but wasn’t. I think every time I have gotten the launchctl message, it has booted successfully on the next try.
During the successful boots in verbose mode, everything happens so quickly that it is hard to say what is going on, but I don’t think it is running fsck_hfs. If it boots successfully and I give it a heavy I/O task, like doing a virus scan, everything works fine. If I run Disk Utility off the installation disk, it says the disk appears to be OK.
I started the machine in single user mode and ran fsck manually. It gave me reports similar to running Disk Utility, and told me the disk appeared to be OK. It then gave me the prompt for a new command. I typed "exit". It responded "logout". And hung.
One last thing: I just tried a couple of times to restart with the Apple Hardware test. Despite holding down the D key, the test failed to load, and after a long pause, the machine attempted a normal start-up.
Info:
MacBook Pro, Mac OS X (10.6.8)
I added 2 sticks of 512 to my power mac g5 1.6. I had ahard time getting the computer to see the new ram, but finally was able to kinda get it working after zapping the pram. However my computer only saw these 2 sticks as 256, odd. So i attempted to troubleshoot the problem. I tried just installing the new ram, but the computer wouldnt boot. I tried a few different combos with the other 4 sticks i had, but nothing. I put the old memory back in, and still nothing. The power led looks to blink once every five seconds or so. I tried pressing the pmu reset button, but still the same out come. I also tried taking out the battery, nothing.
Information:
1.6 g5 single proc
Mac OS X (10.5.1)
This is bad and old, and full of lessons about backing up. Anyway, internal boot drive crashed a week ago, and internal optical drive is busted. New external LaCie dvd burner works fine, but all attempts to start up from Tiger, Leopard and Diskwarrior installation disks just end up back in OS10.3 on my external LaCie FW drive. I've tried many things: unplugged everything; switched external LaCie to USB (wouldn't boot), unplugged power from internal optical drive so Mac wouldn't look there first (somebody suggested that). Attempts to start up installers from mounted DVDs result in installer screen with restart button, which, when clicked on, results in... you guessed it... boot back to dreaded 10.3 system. Night owls and westcoasters, I am up for hours yet, pulling hair.
Information:
G5 Dual 2GHz
Mac OS X (10.4.3)
my old 2x2Ghz PM G5 (late2004) doesn't launch the boot sequence:
- when pushing power button, the blue led turn ON as long as I keep it pushed. If not pushed, it light off but yet the fan are running.
- no chime
- the fans turn on normally and the hard drive start a little to make noise once powered up.
- no video on display, the screen is black.
- the keyboard is not recognized anywhere I plug it.
- after a minute or two of non activity, the fans start to blow full speed (guess its a security measure for saving processor)
I ve done the reset of PMU several time (unplug the power cord then push the button at bottom of mother board)As i dont have access to keyboard, I can't start on Target mode to check if the HD is failing all.I ve removed all RAM extensions and left only one pair in slot 1 (J0), and changed the pair to avoid a faulty RAM.I only have a redlight on motherboard if I don t put back the glass panel.I ve check the voltage of the lithium battery, and yet its the original, the voltmeter says its 3,6V...
last night I was using my computer just chatting with people, then all of the sudden it shuts off. Now it won't boot past the apple grey loading screen, and the fans slowly rev up till they are full boar, and I have to shut it off for them to stop. I've reset the PRAM, the SMU/PMU, tried holding alt and selecting my drive to boot to. None of these did anything, and didn't help at all.
I've heard it's a processer or logic board failure, or a HD failure, or something else. I'm ready to buy a new computer, I'm actually kind of sick of this one, I just want to know if I can fix it or not. I will probably take it to the apple store just to make sure, but maybe I can get an answer on here to know how to fix it or just to know that it's dead.
Info:
PowerMac
The other day when I got done putting my powermac g4 400mhz back together first a Message popped up saying you need to restart your computer that keeps popping up and now it won't boot past the apple symbol. What does this mean, and is there a way to fix it?
Info:
PowerMac, Mac OS X (10.4.11)
Win i Press The power botten the light will not stay on but the fans are runing and the and the CD Rom has power butt the hard drive will start up iv try reset the PMU on the Logic Board and tryed all the keyboard command Option is ther aney iv missed ?
Info:Power Mac G4 (QuickSilver 2002), Mac OS X (10.4)
I am attempting to startup a Mac G5 (Dual 1.8), but can only get a far as the gray screen with a flashing ?/Finder Icon. Machine will power up and fans will spin at max. Have tried to boot in various modes (safe mode, single user mode) with no success. Have tried to boot from G5 software install dvd (10.3) with no success.
Info:
Dual G5 1.8
I installed a new hard drive on my G5. Trying to boot up from my leopard install CD. I get a blue screen with two arrows and the install cd icon. Plus the "clock" going around. It's been doing that for 30 min. What is that? Just when I was starting to feel confident in my HD installing capabilities.
Information:
Power Mac G5 1.6 ghz
Mac OS X (10.3.x)
Having trouble booting up my old G5. If I'm lucky, I can hold down the 'C' while pushing the power button and it may or may not boot after several tries. Using tiger 10.5 (?) Can't remember the exact version because it isn't booting up anymore. Last time it did there was no keyboard/mouse recognition. Is there any key combo to try other than the 'C'?
View 14 Replies View RelatedI just to start up my G4 1.25 Power Mac and it powered up and would not boot, instead of the normal audio chimes all I get is a splat on powering up.This machine has been operating OK until now
Info:
iPhoto '11, Mac OS X (10.6.7)
The screen won't boot after startup tone and apple icon with pinwheel. The disc utility is telling me it cannot repair the corrupted disc and to "backup as many files as possible" but I do not know how to do this.
Info:
MacBook Air, Mac OS X (10.7)
Had a power outage.My hopped up G4 tower with 2 - 200 GB EIDE drives on an EIDE PCI card. It crashed and one 200 GB EIDE drive didn't survive.(Yes it was on a UPS but the UPS ran dry and the G4 crashed before it could be gently shutdown) I removed the crashed drive and made sure the remain drive was jumpered as a single master drive. It wouldn't boot. All I got was the gray screen (no logo no paddle wheels, no start-up gong) I replaced the battery on the motherboard (commonly known as the PRAM battery)It wouldn't boot but I heard the start-up gong. I booted off the Leopard install DVD and ran Disk Utility repair disk and repair permissions. No problems were found. It wouldn't boot. Still gonged though. I installed Leopard onto an external firewire drive and connected it. Restarted holding down the option key to select a boot drive. Selected the Firewire drive. It wouldn't boot - gray screen only (and the gong). I installed Leopard onto the surviving drive and it appeared to install properly. It wouldn't boot (get used to this result). I erased the 200 GB drive and installed Leopard onto it. It wouldn't boot. I took my trusty PowerBook - booted it in target mode and then connected it to the G4 and booted off of it. Success! That worked. So I downloaded the Leopard Combo Updater and updated the Leopard on the 200 GB drive. Tried to boot off the 200 GB drive. It wouldn't boot - however now I have an Apple logo on the gray screen - still no paddle wheel though. At this point I was reseating PCI boards, EIDE cables, and all that stuff. Yes, yes, I reset PRAM a few times and so forth. It wouldn't boot. I pulled 2 SCSI drives out of another G4 tower and installed them and "option-started" the G4, selected a SCSI drive to boot from and it booted off an old version of Tiger. Once it booted, I could see the 200 GB EIDE drive and put files on it and everything! So, it's not like the drive is broken. I ran Disk Utility again just to be sure and it appears to be fine. When I select it as the start-up disk, it won't boot.
Info:
PowerMac, Mac OS X (10.5.8)
My back up 1.6 ghz G5 power mac is misbehaving. I moved the system to another room and when I went to boot up, the only response I got was the fans running at normal speed - and then they started to slowly creep up to a very high speed. No hard drive activity, no monitor activity. I swapped out the memory for the original factory mem - same problem - reset the switch... nothing.
Information:
Power Mac G5 1.6 GHZ
Mac OS X (10.4.3)
1 Gig Mem, 80 Gig HD
When I unplugg my pc vid card 5770 i can boot to mac but when i plug it in the power port on motherboard i can only bootcamp to windows is this normal?kind of a hassle everytime i want to play games because i have to shut down then plug in vid card to crossfire
View 5 Replies View RelatedMy MacBook is refusing to boot from the hard drive. I went to do the Boot Camp process to install Windows 7, and of course my dumbass didn't print out the 13 page instructions or read them. So I partitioned my hard drive, then put in the Windows 7 disc. After that, boot camp didn't do anything. So of course I was stupid enough as to restart my MacBook and try to boot up from the optical drive by holding down "c." When it finished the only thing that came up is a black screen with a 1. and a 2. and it says "Select CD-ROM Boot Type: _ " I can't get past that. I tried restarting and holding down "d," but that didn't work.
View 5 Replies View RelatedI have a Mac G4 with two hard drives installed. The Main drive (original) is a 38.18 GB. The Second drive - (I added later) is a 149.05 GB. It has Mac OS X 10.4.11 installed. This Mac does not have a DVD drive, only CD-RW. Also, I have no critical data on here - I use it as a utility machine. It is in a network with an iMac and Windows XP machine.
My problem is that the Main drive is now "full" - only 483 MB available. I have uninstalled all "non-essential" applications but find it often gives me a "Your Startup Drive is Full" message.
How can I make the second drive the "main" - boot drive?
OR, and I thought I knew everything - can I install applications like iTunes, Adobe reader, Microsoft Office on the second drive and run them from there? - If so, how would I do that?
I'm attempting to install several PowerMac G5s with the same image. All the PowerMacs are the same vintage, and two of the four seem to work just fine. The other two have the same issue.
I created a model machine that's suitable for cloning: installed and updated all necessary software, configured system settings, and then used Disk utility to copy the model system to a read-only disk image. I then used the Disk Utility application to prepare the system image for deployment by Scanning the Image for Restore.
I then restored the image to hard drives with Disk Utility. I placed in the four HDs in the PowerMacs. Two of the PowerMacs booted without a problem, the other two won't boot to the restored image. I tried holding down Option key when booting, and option to boot to the drive never shows up. Also tried resetting the PRAM, but that didn't work either.
Info:
MacBook, Xserve G5, PowerMac G5, Mac OS X (10.5.8)
My MacBook won't boot up without the system disk, has Lion with 4 Gb Ram all updates, has a DVD stuck n the drive?
Info:
MacBook, iOS 5.0.1, 4 GB RAM
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.
Info:
iMac, Mac OS X (10.7.4)
I can not book myMac book air without power cable . Power shows 96 % power .
Info:MacBook Air, Mac OS X (10.7.4), Bought 3 weeks ago
We have an older model G5 Dual (no Intel Core) at the office that we tried to install CS3 on. I told them that first we would need to upgrade from 10.3.8 to 10.4.10, which they did, and then installed CS3. But they did it without running the disk utility repair permissions after the OS software installation, as I have routinely done with my Mac Mini at home, after the horror I experienced with the 10.4.9 upgrade. For a couple of days, the computer ran fine, but I noticed an increase in the fan spinning up yesterday afternoon, then quirky keyboard things -- like I'd select an item with point and click, and it would highlight everything else near it, I'd go to quit an application and it would ask if I wanted to quit all applications.
After backing up my current InDesign work files on a flash drive (but not the whole darn art folder), I rebooted and it came up in Safe Boot mode 6 times without holding any key down. Attempts to boot from disk have failed, even with holding down the "C" key. It's also not allowing us to type out full passwords at the log-in screen... you start typing and after you hit four digits, it clears, then only allows two digits. How we can:
1.) Force boot from disk, and,
2.) Hopefully fix with disk utility whatever wonkiness is occurring?
Information:
Mac Mini, Intel Core & G5 Dual (not Intel)
Mac OS X (10.4.10)
I boot up, go through all the start up ok, the desktop background loads but none of the icons for the HD or folders, etc. Tried booting from the DVD and repairing, and booting in Safe Mode, but no change.
Information:
intel iMac
Mac OS X (10.4.8)
And then open the begger up to find the Serial number, prod a few things, close up, then it starts? Anyone advise what's going on. Could it be it was too cold? My office gets cold? Could it be that I am turning the plug off at the switch when I don't use it and then it sometimes is bad to start up after a few days. Someone be strict with me and tell me what I am doing wrong (should I even be turning it off at the switch once turned off?)
Information:
iBook G4 x 2, 12+19 in. 20in display/G5 Power Mac 3RD Gen Pod + 2nd Shuffle
Mac OS X (10.4.8)
