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Powerbook G4 Lower Memory Slot Not Working
And not beeing impatient when looking for one: "check all, choose the best ..." my grandmother used to say, but obviously she forgot to tell me, not to be impatient and One pair of 1GB RAM is labelled "Quimonda" - one of the two chips works fine, the other offers only 512MB. Acción en curso... My previous posting prooved to be rubbish: two of my 1GB RAM-chips are faulty. navigate here
Sorry to hear about your problem, I'm one of the lucky ones it seems, my 15" PB is quite happy to use the full 2GB. If my PowerBook G4 (15-inch 1.67/1.5 GHz) is still under warranty, how does this program affect me? It's widely known problem. MacinStitch 12.671 visualizaciones 4:06 Maxing Out My PowerBook G4: SSD Install & 2GB RAM | The PowerPC Hub - Duración: 22:41. https://www.cnet.com/news/powerbookibook-lower-ram-slot-failure-revisited/
However, a PowerBook with Leopard and 1GB is perfectly usable for most functions. United States Copyright © Apple Inc. Can I determine if my PowerBook G4 (15-inch 1.67/1.5 GHz) has the component issue and fix it myself? Can't believe, Apple got away with that issue ...
- I have no idea how long this problem has been happening on my machine, but I shelled out a hundred bucks or so a couple years ago to boost my ram
- This is my first Mac computer so I'm taking everything very slow, trying to understand and learn a new operating system!
- The PowerBook Lower Memory Slot Failure petition reads: Apple Repairs Out of Warranty 1.5 GHz and 1.67 GHz Machines!
- To clarify, the fault has apparently manifested itself in the following PowerBook models, according to user accounts taken from the Apple Discussion Forum, located at http://discussions.info.apple.com: PowerBook G4, 15", 1.67 GHz
- Subido el 18 ene. 2010I "repaired" a friend's PowerBook G4 by using a piece of folded paper to put downward pressure on the memory slots.
- You can check nvram variables via `nvram -p` - on my system, this lists a variable "ram-size" as a hex number tht reflects the amount of memory I have installed (0x40000000,
- Unfortunately it is not currently a permanent fix, but I submit this to you in the hope someone will be able to come up with a proper solution.
- She really can feel the difference when playing WoW, so it is quite obvious that PB is able to use memory in that slot. --- Andrei Tchijov Leaping Bytes, LLC [
Finally, the last line starts the boot process for my Mac. Searching for that issue I've found endless complaints about that hardware-problem. Inicia sesión para añadir este vídeo a la lista Ver más tarde. I do have 2GB in the lower slot since I couldn't find any matching sticks.
REALLY? This may be different to what others are experiencing so your mileage may vary. [robg adds: Note that this hint involves the use of Open Firmware, and you could permanently damage Cargando... Yes No Voted Undo Score 0 Cancel Comments: Do you want to know the cause or the work around?
at first i thought the ram was fried, but both sticks work fine in the upper slot. Here are the specs on my machine:Model Name: PowerBook G4 15"Model Identifier: PowerBook5,4Processor Name: PowerPC G4 (1.1)Processor Speed: 1.5 GHzNumber Of CPUs: 1L2 Cache (per CPU): 512 KBMemory: 1 GBBus Speed: i'm pretty sure i'm entering everything as written, but when it reboots, no lower slot again. It's totally worth it.
Comment on this posting... https://www.ifixit.com/Answers/View/48026/Lower+memory+slot+failure. Feb 17, 2008 7:24 PM Helpful (0) Reply options Link to this post by eww, eww Feb 18, 2008 3:32 AM in response to Warren Allen1 Level 9 (52,994 points) Feb I've only seen DLSD PowerBooks run with a single 2GB stick, you could reflow the bad RAM slot and it should work again share Share on Twitter Share on Facebook The same seller sent me a pair of 1GB Samsung Chips which also work fine.
The 8-Bit Guy 551.923 visualizaciones 8:05 Steve Jobs Insult Response - Duración: 5:18. check over here Some users are not aware of the issue until they check the "About This Mac" pane accessible via the Apple menu or experience significant slow-down in a particular application. It was otherwise a perfect machine with a good display and in overall good condition. then i thought maybe i fried the slot when i reinstalled the hdd.
I can't be sure of the exact time that it happened because I didn't start investigating my RAM slots until hearing about this from others. hardware test gives the error code: post/0/2048 sodimmo/j25lowerI've read few different thjngs about what this could mean. Bus slewing in the memory controller is a primary concern since many people buy what they think is to spec RAM, when in fact it is just slightly out of spec.If his comment is here Using Automator to move files one folder up Weird PDF behaviour in Yosemite Copying files to multiple folders using Applescript Looking for simple iTunes track info visualizer Adding SSD iMac Mid
thus the ability to artifically reduce the size of your system ram in open firmware by changing these mappings.1) first of all a note about module sizes. anybody at all? • Currently 3.38 / 5 You rated: 5 / 5 (8 votes cast) [20,881 views] Hint Options Printable Hint Format Subscribe to 'macosxhints.com laptop Mac Evgeni Meirson 50.876 visualizaciones 1:04 Repair a PowerBook G4 that won't turn on - Duración: 1:40.
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The second quirk related to this problem is this: If I insert the RAM into the slot but do not push it down until the clips lock it in, the computer Replacement of the display worked without problems (even if iFixit made me remove the whole Logic-board on my first round at the wrecked PB... Does anyone here has a solution how to fix that problem? So, something to add to Dronecatcher's advice: better don't go for a PowerBook5,4 at all, unless it has 2GB of working memory installed, cause finding a compatible RAM sucks and is
Oct. 9, 2010 item.122443 MacInTouch Reader Replacement of logicboard to correct this RAM slot issue is about $350 with AppleCare at 1800-Apl-care and they do a depot repair which means they I had a client with two 500mhz TiBooks with the problem. Get a good insurance policy, one that covers any accidental loss. 2. weblink Preview my answer Post my answer View Statistics: Past 24 Hours: 0 Past 7 Days: 2 Past 30 Days: 13 All Time: 1,552 22,573 Free Manuals 89,433 Solutions 6,854 Devices iFixit
User Functions Username: Password: Lost your password? Thanks [ Reply to This | # ] A fix of sorts for PowerBooks with lower RAM slot issues Authored by: ash7 on Mar 04, '08 08:41:06AM Not so sure this Comment on this posting... First of all, it is not persistent -- when you reboot your machine, these mappings will be lost and you will be back to square one.
Acción en curso... Looking foreward to attach an mSATA drive too. Anybody have any answers ... checking in open firmware, the ram is still detected and the information on the dimm is there.
When both SO-DIMM memory slots are filled (populated), only one slot's memory is recognized. So I have 1G as a result. ;-( 03/25/2011 by leon PC2700U .... share Share on Twitter Share on Facebook Email Link Like + Quote Reply bobesch, Aug 1, 2016 bobesch thread starter macrumors 6502 Joined: Oct 21, 2015 Location: Kiel, Germany #21 Xandros There are still a lot of PowerBooks out there with both slots functioning.
Check out the online petition. I can't remember if these PowerBook's are compatible with it or not but, usually the reason for a system only seeing 512MB of a 1GB memory module was because it had