Fro Productions(tm)
Join Date: May 2004
Location: London Town
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I am planning to buy a 1GB RAM stick for my Powerbook. And so of course I do my research...
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This is a common perception that is true in most cases. But not in others. If you have one of three models of Aluminium PowerBook G4 15", a Code:
Crucial DDR PC2700 CL=2.5 UNBUFFERED NON-ECC DDR333 2.5V 128Meg x 64 RAM stick is not the same as a Code:
Crucial DDR PC2700 CL=2.5 UNBUFFERED NON-ECC DDR333 2.5V 128Meg x 64 that is Guaranteed Compatible The first is available for £95.97 (via eBuyer - limited availability only). This module will work in all PowerBook G4 Aluminum Models (12in, 15in, & 17in) EXCEPT the Bus Slewing models. The second is available for £130.41. Let me explain:(Courtesy RamJet) This Apple note officially confirms the matter. Quote:
bouncy bouncy |
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M AH - ch ain saw
Join Date: May 2004
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*uck! I'm so tired of this ram enigma... where is my model number, I'm nearly 100% sure I've got a the Bus Slewing model, which explains everything... nearly everything as to why I've been having such bad ram problems.
Okay so what ram am I looking for if I've got a Bus Slewing model? I'm about to read in the documentation you provided, but wanted to post in case you knew answer off hand. EDIT: okay I read the apple disc. forum, thanks for the info SoS, I gave up on ram a couple months ago - exactly due to this issue, its nice to have someone shed some light on this for me. Not even the Apple techs could tell me what was going on... I'm still not sure where to check model number... User formally known as Sh0eWax Last edited by Maciej : 2005-11-06 at 13:29. |
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Fro Productions(tm)
Join Date: May 2004
Location: London Town
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Erm... I'm not sure where in Mac OS X, or physically on your computer you can find the model number of your PowerBook. But the model number should be on your original shipping box (in the unlikely event that you still have it). I suppose, then, that it'll also be on your receipt. Alternatively, you could just search Amazon with the specs of your machine, and see what model number appears in brackets next to the description. SorryI can't do much better than this.
I think that Bus Slewing is basically restricted to the first gen 15" and 17" PowerBooks. I stand to be corrected, though. bouncy bouncy |
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Member
Join Date: Jan 2005
Location: Berkeley, CA
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I could be wrong, but I'm pretty sure the model number exists on a sticker that is placed under the Powerbook's battery. You have to take out the battery to see it. I'd love to confirm this for you, but I am using my computer to type this right now and taking out the battery would not be smart.
I don't wanna go on a rant here but America's foreign policy makes about as much sense as Beowolf having sex with Robert Fulton at the first battle of Antetum. I mean when a neo-conservative defenstrates it's like Raskalnakov filibuster dioxymonohydrostinate. |
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M AH - ch ain saw
Join Date: May 2004
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Nope battery doesn't do it, and yes I do have the box - I'll go whip it out sometime before I go back to school. You brought this up at a really good time sos.
Thanks. User formally known as Sh0eWax |
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Fro Productions(tm)
Join Date: May 2004
Location: London Town
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No probs Maciej. But make sure you read that Ramjet piece properly. (I didn't until just now). It seems that you only need to take account of Bus Slewing when you want to buy a 1GB stick, because "the Bus Slewing models can use the standard 256MB and 512MB modules". I've just bought a 1GB 'Guaranteed Compatible' stick. It cost me £35 ($60) more than a standard stick. Waaaah! bouncy bouncy |
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M AH - ch ain saw
Join Date: May 2004
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Yeah, I've only been interested in 1g sticks, thanks for the heads up though!
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Member
Join Date: Oct 2005
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The Samsung part# for 1GB SO-DIMMs for the bus slewing powerbook models is M470L2923DV0-CB3. This is DDR3333 DIMM which comprises of 16 memory components Samsung K4H510838 and in fact, the Ramjet module is exactly the same. Just if anyone wants to order that Samsung part directly and maybe cheaper.
Here is a link with the memory module: http://www.samsung.com/Products/Semi...=cb3 &x=0&y=0 and here is a link with the memory component (16x, 8x each side): http://www.samsung.com/Products/Semi...cd1=&x=0& y=0 Cheers, Bob. |
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Member
Join Date: Oct 2005
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I have tried two new 1GB memory modules with my bus slewing Powerbook 17" 1.33Ghz and they both work great. A quick test would be to start all huge programs you have, run memtest in a terminal window and switching between battery and AC power by pluging and unpluging the power jack (open up the energy saver window to confirm switch between both profiles).
Those 1GB memory SO-DIMMs are: Kingston KTA-PBG4333/1G they are good for all iBook and Powerbook G4 models 1-1.67Ghz models which use DDR memory (the 1.67Ghz PB 17" uses DDR and not DDR2). Also confirming that Apple's original 1GB SO-DIMM for the bus slewing models, Apple's p/n M9284G/A is actually a Samsung M470L2923BN0-CB3, see a picture of it here: http://us.st11.yimg.com/store1.yimg....1883_148261203 Cheers, Bob. |
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