Dual 2.0ghz G5 won't boot after being unplugged overnight....
Yesterday we had a thunder storm and when leaving my office I not only turned off my power strip that our (G5 DP2.0ghz, 4.5gb ram) computer was plugged into, but I also unplugged the power cord from the strip/surge protector. I usually just turn off the surge protector when we have a storm, but after my father's G4 lost it's power supply after a bad storm a couple weeks ago, I decided to unplug the cord as well. This morning it chimed but soon stopped everything at the gray apple screen. I held in the power button to shut it down and after trying again it chimed and then the light above the power button now just blinks 3 times every 5 seconds or so. Then the chime went away and it just blinks 3 times as mentioned. I wanted to do a pram reset however it does not chime. I tried replacing the pram battery but it still does this blinking thing. I assume that is an indicator of the problem and am hopeful someone here can help me get back running again. Thanks in advance for your help! -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: Dual 2.0ghz G5 won't boot after being unplugged overnight....
The only thing I can think of is your system memory might need to be reseated or a stick or two (doubtfully all but that is a possibility as well) has become corrupted and needs to be replaced. I know if you go to apple.com/support and search 3 flashed and beeps along with your Power Macs model number (M9032) you should be able to dig around and find what that code signifies. If it does come up with system memory corruption then try taking out all but one brand of memory and then try booting it up. Just remember you need to keep the memory installed in equal pairs. In other words, if bank one DIMM slot one is 1GB then bank two DIMM slot 1 must also be the same 1GB. Don't mix RAM sizes, speeds, or even brand names until you discover if this is the problem or which sticks of RAM needs to be replaced. Other than that you might need to be persistent and keep trying different configurations. I have a PowerBook that can be very hard to boot up and it takes many tries to get it to post and boot correctly, which is why I never turn that machine off. I know the problem with it is the logic board needs to be re-flowed again. This is where it is gone over with magnifying equipment and the solder joints that lock in the GPU, memory sockets, and other components on to the board get micro-fractures from the heat of the CPU and GPU causing tiny air gaps in the components and breaks the connections. The tell-tail for this is certain things work (like for me a USB port) only when the logic board is flexed by grabbing the PowerBook by one corner and allowing the weight of the machine flex the board inside the body. Still I can't get myself to let it go because it was my first Apple aluminum laptop and it works fine as old as it is, and as long as I never boot it down and let it cool off. (just restart it once in a blue moon) To turn off the screen I just hit ctrl + shift + eject. It's been like this for 3 to 4 years on my coffee table and I use it all the time. On Wednesday, September 26, 2012 10:10:10 AM UTC-4, spilrules wrote: > > Yesterday we had a thunder storm and when leaving my office I not only > turned off my power strip that our (G5 DP2.0ghz, 4.5gb ram) computer was > plugged into, but I also unplugged the power cord from the strip/surge > protector. I usually just turn off the surge protector when we have a > storm, but after my father's G4 lost it's power supply after a bad storm a > couple weeks ago, I decided to unplug the cord as well. This morning it > chimed but soon stopped everything at the gray apple screen. I held in the > power button to shut it down and after trying again it chimed and then the > light above the power button now just blinks 3 times every 5 seconds or so. > Then the chime went away and it just blinks 3 times as mentioned. I wanted > to do a pram reset however it does not chime. I tried replacing the pram > battery but it still does this blinking thing. I assume that is an > indicator of the problem and am hopeful someone here can help me get back > running again. > Thanks in advance for your help! > -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: Dual 2.0ghz G5 won't boot after being unplugged overnight....
did u also disconnect the internet connection? at home, the telephone line can carry a surge as well. On Sep 26, 2012, at 10:10 AM, spilrules wrote: Yesterday we had a thunder storm and when leaving my office I not only turned off my power strip that our (G5 DP2.0ghz, 4.5gb ram) computer was plugged into, but I also unplugged the power cord from the strip/surge protector. I usually just turn off the surge protector when we have a storm, but after my father's G4 lost it's power supply after a bad storm a couple weeks ago, I decided to unplug the cord as well. This morning it chimed but soon stopped everything at the gray apple screen. I held in the power button to shut it down and after trying again it chimed and then the light above the power button now just blinks 3 times every 5 seconds or so. Then the chime went away and it just blinks 3 times as mentioned. I wanted to do a pram reset however it does not chime. I tried replacing the pram battery but it still does this blinking thing. I assume that is an indicator of the problem and am hopeful someone here can help me get back running again. Thanks in advance for your help!< -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
