PowerPC :: G4 Memory Bank Not Working
May 17, 2008
So my dad decided to upgrade the ram on his Powerbook G4 to 2GB. Initially everything went smoothly and the ram was detected and working. Within a week though, the computer only recognized 1 of the memory slots. Switching the ram cards around proved that the ram itself was fine but that the one memory bank was not working. Is this at all a common problem with the Powerbook G4? Our concern is that a repair may cost more than it is worth considering this is an old machine.
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Jul 11, 2009
I just received my new 2009 Mac Pro Quad 2.66 and I noticed istat does not show a temp for memory bank a1. It just shows banks A2 and A3. I was wondering if this normal or if I have a problem. BTW I have 3gb of ram. I also have the power supply grinding sound, but that another story.
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Jun 9, 2012
I use my Mid 2010 iMac for virtualizing routers. I noticed that with the 4gb of RAM that was already installed in the iMac was not enough. So, I did some research and found out that, my iMac can hold up to 16gb of RAM. I did some more research and found out how to replace the memory in my iMac. Then, I went to Micro Center and bought 16gb of RAM and brought it back to my apartment. Now, I powered off my iMac and unplugged the power cord, flipped the iMac upside down and unscrewed the three screws that were holding the memory cover on. After removing the memory cover, and pulling back the memory tabs/flaps, I shined a light down in the memory slots and found one memory slot that looked damaged. I was not completely sure, so I went ahead and removed the old memory by pulling hard on the memory tabs/flaps, and the memory was unseated.
I remove the memory and replace it with four, 4gb sticks of memory. Once I powered on the iMac, a memory beep sounded off. So, I unplugged the power cord from the iMac and removed two of the four memory sticks out of the iMac. The two sticks of memory I removed was out of BANK 0/DIMM0 and BANK 1/DIMM0. BANK 0/DIMM0, is the one that is damaged and my hardware warranty has expired. I bought this iMac damage, and now it won’t support 16gb of memory. What should I do? By the way, the other 8gb of memory in the other two BANKs are working.
Info:
iMac, Mac OS X (10.7.4), Memory BANK 0/DIMM0 is bac
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Mar 20, 2012
I use Safari to download my banking information. After the last Safari upgrade (5.1.4) I can log on but cannot open links to the different accounts. I can "exit" but cannot navigate deeper into the site.
Using early 2008 MacBook Pro 15 with Lion. It won't work using my iMac but will work using Internet Explorer on a PC.
Info:
Mac Pro, Mac OS X (10.7.3)
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Mar 13, 2012
Opening bank data files, while logged into the bank or brokerage sites, by clicking on the PDF or file name icon, is supposed to open in PDF format but instead opens only a single page in Quicktime. This also happened several years ago in Leopard and required the removal of Quicktimeplugin.plugin. I have tried doing that in Lion with no success.
Info:
iMac, Mac OS X (10.6.3)
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Apr 3, 2008
does anyone know how much memory would the PowerBook G4 (the very last one, 1.67GHz with DL SD and 15" HD) take?
apple- says 2GB, but is that limited by the motherboard or by the fact that when this machine went out of production, 2GB sticks weren't available yet?
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Sep 17, 2007
I have inherited two PowerMac G4 450 MHz AGP machines for use at the non-profit arts organization that I help run. I believe these are either the "Sawtooth" configuration [URL] or the "Mystic" configuration [URL], probably the former.
They each came with two 128 MB DIMMs (256 MB RAM each), which is anemic of course, so I bought two DIMMs of 512 MB RAM of the same type, intending to add one to each machine. Same bus speed (133 MHz) and voltage configuration (contact edge indents) as the existing memory. There are 4 DIMM slots.
The DIMMs go into the slot just fine, but are not recognized by the system. It boots up as if they aren't there; there are no abnormal boot beeps or flashing power button. It just doesn't count them as existing in the RAM pool (per "About This Mac").
I did try both DIMMs all by themselves, separately in the first slot and together in the first two, and those boots failed with the warning beep, flashing power button, and no video.
I can take these back to the vendor (a trusted local whitebox shop) and have them test them, but is there something special that I need besides PC133 SDRAM?
I noticed that these new 512MBs are 16-chip DIMMs, and the existing 128MBs are 8-chip DIMMs. Does that matter? I vaguely recall that there's a difference between 16-chip and 8-chip.
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Sep 2, 2009
I have three 16gb USB memory sticks that don't work correctly with Snow Leopard. Disk Utility is will only format them in FAT32 format and I'm unable to successfully copy files to and from the sticks.
They work perfectly fine under Windows in Boot Camp and also on my Windows based laptop. Sadly, I purchased them after I had installed Snow Leopard and I don't have access to another Mac with an earlier copy of Mac OS X to test them.
Is this most likely a Snow Leopard anomaly do you think or is it just that these sticks are not OS X compatible?
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Apr 11, 2007
Is it possible for me to put a 1g memory stick in my PowerBook 12inch 867mhz? The reason why I'm asking this, is because when you check the apple store, the maximum memory is 512mb. But if you check elsewhere, you can buy the 1g stick. Some places says that the computer will recognize only 512mb, even if you put the 1g.
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Oct 31, 2007
Sometimes hear things of Macs supporting more memory than listed, so I was curious about my Powerbook. 12-inch Powerbook G4 1.5 GHZ. I have the specified limit of 1.25 GB. Has anyone here ever tried a 2 GB stick in it? Doesn't work?
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Aug 25, 2008
I'm new to posting on this site but I've used it quite a bit. But I can't seem to find my specific problem Here it i What can I do to get Leopard on here? I've seen the "Install Leopard on Unsupported Macs Guide", but you need a DVD burner for that I don't have one Also I would rather not go through all that Terminal stuff to do it.
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Aug 28, 2008
I was hoping to install 3-1GB PC-133 168-Pin Non-ECC non-Reg SDRAM Memory in a Quicksilver G4. Would this memory work?
G4 Quicksilver 1.8 GHZ 2TB Sata Raid.
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Jan 25, 2010
I was wondering what is the max memory that I can put on my iBook G4. My G4 (12 inch) has 128 MB DDR SDRAM soldered in place and has a 800 MHz PowerPC G4 Processor. I was wondering what is the most memory I could install and what is recommended? Also I am only running Mac OS X Version 10.4.11. Is it possible for me to update to 10.5 or higher? Sometimes when running videos on google video or youtube it gets choppy and lags what fixes this problem. A message pops up about quicktime not up to date but I try and do a software update and it says that my software is up to date could this be because of the older software?
Hardware Overview:
Machine Name:iBook G4
Machine Model:PowerBook6,3
CPU Type:PowerPC G4 (3.3)
Number Of CPUs:1
CPU Speed:800 MHz
L2 Cache (per CPU):256 KB
Memory:256 MB
Bus Speed:133 MHz
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Jan 30, 2007
I am looking to upgrade the current memory in my iMac. It has 512 (2x256) and it says it supports up to 1gb total. However, i have been searching all over this forum seeing if it is possible to have more. Like if I added a 1gb sodimm to get it to 1.2gb. I have seen very little on this as I have searched these threads. Also, is the upgrade in memory really going to help me out? I really notice the slowdown in iMovie. I have been watching the activity monitor and even though the cpu can get up to 100%, the free memory will be down to 4 mb. oh ya, I am running 10.3.9. When i update the os, with a clean install, will i see any improvements without additional memory? Or will i need more memory just to keep tiger or possibly leopard running good?
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Mar 21, 2007
I have a 12'' powerbook 1.5 ghz with just 512ram...If I upgraded lets to 1.25gb would i see a huge difference? someone is selling a kingston brand 1gb on craigslist...this is the model KVR333SO/1GR....would that be compatible?
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Aug 1, 2007
I have a IBook G4 labtop. how to install the memory chip.
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Aug 4, 2007
The other day, I put more ram into 2 12-inch ibooks - my own 1.0 ghz, and my wife's 1.33 ghz (Yes, I know she has the faster machine. It means I'm the next to upgrade). Anyway, this is the first time I had opened them up at all and I saw something that confused me: I know that ibooks have only one available expansion slot for ram. That's what I saw on mine. But on my wife's, it looked like there was a second slot lower down, just below where I installed the ram, but missing the clips to hold the ram in place.
Is this in fact a second ram expansion slot, or is it just the shape of it that makes it appear to be one, or is it a second slot that is somehow unsupported or unable to be used? My guess is that it's just the shape of the hardware, and it only appears to be a second ram slot, but isn't really. But wouldn't it be sweet if there was in fact another usable slot in the ibook?
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Nov 16, 2007
I own a 900 MHz G3 ibook (v2.3) with 256 MB of ram running 10.2.8. It's been good to me, but over the years it's performance has started to decrease. Most applications load up and run fine, but web browsers can become a little slow when I have multiple windows or tabs open. What should I do to get rid of this problem? Upgrade the memory to 640MB of ram? Update the OS to 10.4?
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Mar 8, 2008
Can you add memory to an iBook G4. And can the new AirPort extreme card be installed in the same computer. It has an AirPort Extreme but I don't think its the newest one.
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Oct 25, 2008
Hi there, a couple of easy questions I hope.
What is the simplest was to increase the memory on a 10GB Imac G3. 9.7GB are used up and there isn't much I can delete to free up space. It is a friend's computer, she is not mac savvy.
Also, I am considering rebooting the system as there is an account on there with a forgotten password and the original administrator password is long forgotten. What would be the best way to go about doing this? I have 10.4 os discs, with extra memory would this work ok?
Thanks in advance.
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Sep 21, 2006
Will macbook memory work in the latest powerbook Hi-Res?
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Feb 29, 2008
So I've got a 2.0 GHz, white MacBook with 1gb ram, and a G4 Powerbook 1.67 with 1gb of ram. The major software difference between the two is the OS, the MacBook is running Leopard. So, I noticed the MacBook started to lag a little from when it was new, so when I upgraded to Leopard I did a clean install. Still noticed the lag so I checked my ram, and here's what I got:
The Powerbook was running the same exact apps (iTunes, iChat, iPhoto, Safari) as the MacBook, and even after loading dashboard on the Powerbook it still used only 500mb of ram and 4.45gb of Virtual Ram. The MacBook was using 615mb of ram and 32 GB OF VIRTUAL MEMORY?I thought it might just be counting space set aside, but I checked the apps and adding all them up is about 32gb. They both have the same iPhoto library yet the powerbook's only took up 240mb of virtual ram and the macbook's over 1000mb.
I realize there are some slight differences (different iChat, spaces was running) but why in gods name would it make the MacBook use almost 7 times the amount of virtual ram!
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Jul 4, 2008
I have a Powerbook G4 that I wanted to upgrade to 1.5G from 512MB. So I added Corsair 1GB DDR RAM to the notebook and it seems to have issues recognizing both at the the same time. When I put both of them in together, it never seems to recognize the bottom slot. Putting in the 512MB in the bottom w/o the 1GB the Powerbook boots up fine. Putting in the 1GB by itself and it gives beeping noises on bootup, but it'll boot up if I put it on the top slot.
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Nov 9, 2008
I have an iBook G4 1.33 14". The computer all the sudden wont boot anymore and the file/smiley blinks. I tried the Apple Hardware Test CD and got the Invalid Memory Access Error:%SRRO: 00032ed8 %SRR1: 0003030
I tried to boot from the startup CD and once the CD kicked in the screen froze, and other times it says the computer needs to be restated.I removed the ram under the keyboard and still got the same error. I also Zapped the PRAM, Reset the PMU and still no luck.Any suggestions? I love this Mac and currently can't go out and buy a new one.
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Dec 14, 2008
My ibook was running really slow, so i decided to get some more memory. i'm no computer expert but i used to work in the IT dept and have replaced memory before (in pc's).
Anyway, i went to my local computer store, told the guy there what kind of computer i had. (ibook G4, 14-inch with a built-in memory and an empty slot). He looked it up on the system, figured out what i needed and i bought it. It was a Corsair 1GB DDR2 667mhz. He said it was exactly what i needed. I didn't question him.
Tonight, i go to install it, and it doesn't go in easily. I got it in though, and turned on my computer, and it wouldn't start. i took it out, and it started fine.
I went to some online forums about installing memory on my specific model and people were saying you really need to force it in there, more than you think would even be safe, but it takes a lot of force to get it in, so i thought maybe it didn't work the first time because it wasn't in all the way. i kept trying, and i got it in further, thinking i did it. i went to turn on the computer, dead.
So, i took out the memory, and now my computer still won't start. NOTHING.
I went back to the store, told them what happened, and i spoke to a different salesman than yesterday, and when this guy looked at what i bought, he said it was definitely not the correct one.
He said DDR2 is definitely not compatible with the older iBook. He also said that he looked on his system to find out what type i really need, but the system wouldn't show my model (because its a few years old). Pretty much, he said that the other employee messed up because the computer wouldn't even show him what i would need.
But what i would like to know is what's wrong with my computer exactly? did the mother board fry? did i lose everything? do i need to send it into mac for repair? how screwed am i? and also, is the store responsible for this at all?
The sad part to this story is that in early august of this year, this laptop's battery stopped working, and it was a problem with the power supply. I sent it off to mac and they fixed it, but when it was returned, it wasn't turning on. i sent it back again and they said the motherboard had to be replaced. luckily that happened a month before my extended warranty expired, but this time, i don't have a warranty anymore.
Any insight on my problem? Please someone, cheer me up. Tell me there is something i can do to save my computer and that my motherboard isnt fried again.
Can putting the wrong memory in your computer completely ruin it?
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Apr 2, 2009
Can all versions of the iBook G4 12" use PC2700 RAM? Even the 800GHz and 1.0 GHz models? I know you're supposed to use PC2100 in them, but the PC2700 is so much less expensive than the PC2100 right now.
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Aug 26, 2009
My internet is very slow! It's not the service as I have 2 other computers who run very fast on wireless. I just replaced the ethernet cable which didn't do anything. My computer itself isn't that slow although it isn't fast either. It's a imac, 10.5.7, 1.8 GHz PowerPC G5, memory 2GB DDR SDRAM.
I thought about switching it to wireless,I'm not sure as I don't see it on the top toolbar and I'm not sure how to set it up if my machine actually has it. Could my router be bad if my other computers are good?
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Apr 27, 2008
I recently bought a Power Mac G5 with 3 20" cinema displays, each with their own video card. I've since stopped using one and it sped up some. But even with the most simple tasks, it is hella slow and freezes sometimes. If I just have Firefox and iTunes open, it runs slow and the fans kick in overdrive. The main video card is an ATI Radeon x800 with 256 RAM and the other is a 9200 with 128 RAM. how to free up my RAM and speed it up?
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Dec 15, 2008
I am suddenly unable to log in to First Direct - I put in my user name and it simply refreshes the page asking me to input it again. It was fine earlier today before I updated. I phoned and they said there was no problem. I used my partner's Mac (with 10.5.5) and, sure enough, it's fine on there. Yet again, a software update solves a bunch of problems and then creates a few more.
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Mar 1, 2009
I have a problem with logging into Chase Bank website using Safari 4. When I connect to [URl] everything loads fine. However, the problem comes as soon as I log in. After entering my username and password and pressing "Log On" button, Safari 4 redirects to (it appears on the address bar) [URL] and the browser window only shows a line of text saying 404: File Not Found. Could not find file.
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