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Powerbook G4 Memory Slot Not Working

supergeniusooo 22,883 views 4:33 Maxing Out My PowerBook G4: SSD Install & 2GB RAM | The PowerPC Hub - Duration: 22:41. checking in open firmware, the ram is still detected and the information on the dimm is there. Mike Cane 6,446,412 views 5:18 install ram on powerbook g4 - Duration: 9:03. Wouldn't it be possible for someone with knowledge (perhaps the inventor of the fix) to make the firmware patch? http://europrolink.com/powerbook-g4/powerbook-g4-lower-memory-slot-not-working.php

So has to go into the oven for reflow? 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 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. finally the last line starts the boot process for your mac.

But there is another 15" PB - the first 15" I ever got, which suffered from a yellow display and which lived unloved somewhere in my office sitting in a dark How long is the PowerBook G4 (15-inch 1.67/1.5 GHz) Memory Slot Repair Extension Program available? Feb 19, 2008 10:49 PM Helpful (0) Reply options Link to this post by jtonline, jtonline Feb 24, 2008 2:57 AM in response to Maria Casafrancisco Level 1 (0 points) Feb should they buy back stock or give a sto...

  • As others have commented on this site, the defective memory modules must have been finding their way into production much earlier than Apple claim.
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  • Do this by holding Command-Option-O-F just after the system chimes during the boot process.

You can opt to use it that way and spend nothing on repairs, as many other people with bad lower RAM slots have done. That way, and only that way will Apple get an indication how widespread the problem is.Message was edited by: a brody Feb 26, 2008 1:54 PM Helpful (0) Reply options Link While we would like our computers to last longer than four years or so, it doesn't always happen. It's the RAM-module.

My 12" iBook & Powerbook are both 512Mb short of their maximum...I'm in no hurry to upgrade them. This is important because in addition to slots going bad, these PowerBooks are touchy in terms of RAM, so certain modules won't be recognized even though they have the right specs. Okay, here goes with a recap. This Site 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.

I had 512 in lower and 1g in upper.I've switched them out and can not get memory to be recognized in lower. 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 I have a remanufactured PowerBook G4 (15-inch 1.67/1.5 GHz) that fits the description noted. Anyone refused coverage due to the time limit?

Here are the specs on my machine: Model Name: PowerBook G4 15" Model Identifier: PowerBook5,4 Processor Name: PowerPC G4 (1.1) Processor Speed: 1.5 GHz Number Of CPUs: 1 L2 Cache (per https://www.ifixit.com/Answers/View/48026/Lower+memory+slot+failure. I had a client with two 500mhz TiBooks with the problem. Apple could ... I sent my powerbook to them and they fixed it for about $300.

Problems With Together Dating: Together: Let Us In... this page johnmonk66 20,276 views 9:03 Repair a PowerBook G4 that won't turn on - Duration: 1:40. Yes No Voted Undo Score 2 Cancel Comments: I tried 256 Mb DRR from my old hp (unfortunately i haven't got the original chip) and no result 03/25/2011 by leon Did My previous posting prooved to be rubbish: two of my 1GB RAM-chips are faulty.

But if both are recognized in the good slot, you know it's a slot issue and not a bad RAM issue, in which case there's not really anything you can do, Our main goal was to see The Original Disneyland in ... Is there actually a repair or is it just a mobo replacement? get redirected here So please give me a few suggestion on a good/fast/reliable model to purchase for around $700!

Then there's the faulty single 1GB "no name" brick with the black squares labelled Samsung. Finally, the last line starts the boot process for my Mac. in this case it starts at address space 0 and is 10000000 (256mb) in size. 
the second loads my second memory module onto the stack starting at address 10000000 (directly after

But it does work wonderfully on my wife's PB.

USB To Ethernet Adapter For Macs That Have Lost Et... But that hasn't happened, so you are left with these options: have Apple replace your logic board, have someone else repair or replace your logic board, replace your logic board yourself, I've heard around $350 flat rate to ensure everything is working, which includes replacement parts as needed. Pic Of The Week!

The part is available from a number of retailers, including PowerBook Medic and PBParts.com. 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. The second [command] loads the 2nd (lower) memory module onto the stack starting at address 10000000 (directly after the first upper module) and is 40000000 (1gb) in size. useful reference In this case it starts at address space 0 and is 10000000 (256mb) in size.

If not, go to:http://docs.info.apple.com/article.html?artnum=303173I was searching the forums trying to solve a different problem the other day, and noticed people talking about the lower ram slot failing on Al powerbooks. Loading...