New RAM in iBook prevents startup

Hey everyone,
My little 5+ year-old iBook G4 (933MHz) is so old, but still working fine, so I decided to buy 512MB of RAM from OWC. I'm trying to make it last until OSX 10.6, haha. I made sure the new RAM is EXACTLY the same as my old RAM (PC2100 DDR 266MHz 200 Pin), just bigger. I even compared the two when I installed it.
On startup, I get nothing but the chime. The screen stays black. I don't even hear the HD spin up. I have no idea if it's on or not, so I just pull the battery. When I put my old memory back in, it works fine, with or without the airport card.
I thought if memory was bad, it should still boot, since it has 128MB built in. So I can't tell if it's being recognized or not (well, obviously it's being recognized, it won't start up!)
Any clues as to what the problem might be? I guess I can exchange the RAM, but it would be for exactly the same type.
By the way, this iBook had its logic board replaced by Apple about 2 years ago, if that affects anything.

I agree with Duane. Since your computer runs fine with the original RAM but doesn't even boot with the new, there's not much else that would be the issue.
Also, I've noticed that if a computer doesn't like a RAM module, it won't boot--even if the second one is perfectly fine. Make sure you've got the RAM seated properly and if it still misbehaves, exchange it for another module.
You may also want to double-check that you've got the right RAM, just in case.
~Lyssa

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10.6 is not "too much for" your MBP. You may have gotten a faulty RAM module — it happens.
Start your machine up while holding down the D key, and when Apple Hardware Test appears, select the Extended Test. Run the extended test at least once all the way through, if you can, and post back with the exact text of any error message it reports.
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Hi all,
I'm trying to put in more RAM into my 17" iMac w/ OSX 10.4.10. I currently have 512 MB Ram, but want to install 2GB. I have tried several times to get the computer to start but no luck. I have replaced the original 512MB and am posting here with this configuration-so I know that the computer is recognizing it.
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Thanks,
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iBook G4/1.33 12-Inch (Mid-2005 - Op)
1.33 GHz PowerPC 7447a (G4)
Intro Date:
July 26, 2005
Disc Date:
May 16, 2006
Order No:
M9846LL/A
Model No:
A1133 (EMC N/A)
Subfamily:
iBook G4 - Mid-2005
Model ID:
PowerBook6,7
Std. RAM:
512 MB
Std. VRAM:
32 MB
Std. HD:
40 GB (4200 RPM)
Std. Optical:
8X "Combo Drive"
Complete iBook G4/1.33 12-Inch (Mid-2005 - Op) Specs
The problem with accessing the content of the disks is the CD Drive does not seem to access them. It also has a heck of a time ejecting them. Other disks seem to read. The unit came with imovie disks and I can use them. The disks look perfectly good no scratches but they just don't work, I was hoping I could just get a online copy of the address book to replace the one that seems to be missing. Or find it somewhere on my drive. Have no clue where to look though.

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Hello! I wanted to max out my iMac (7,1) with RAM so I bought a couple new chips from Other World Computing. It came yesterday and I went home all excited to install it. I did, and on startup all I get is three beeps repeating endlessly. I opened the slot back up and made sure they were seated well and they were. Same thing. Put the old RAM back in and it started fine. Gah! How disappointing and frustrating!
Here is the RAM I got:
2GB PC5300 DDR2 667MHz 200 Pin SO-DIMM
4GB PC5300 DDR2 667MHz 200 Pin SO-DIMM
Any ideas would be much appreciated!

Through an a separate email inquire with OWC, I got this response:
+The 3 beeps from your Mac indicate it doesn't see any memory. This is not uncommon as Apple's RAM is a slight bit thinner than third-party modules, and as such, our modules need an a bit extra pressure to fully seat them into their rather tight socket.+
+See if the modules can go another 1/8th inch (3mm) into the socket.+
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Thanks alot for the help! I just installed 512mb of ram in mu iBook. At first it was not showing up on my system profiler even though I had installed it. I went back after reading your thread especially about paying attention to page 6 of the instructions and it clicked in all the way. Now I have 786 mb of ram. I guess I could have just bought 256 mb and installed it but I didn't know that the original 256 mb was built in. I bought my ram from Apple just to be safe and it came really fast (less than a week), plus there was free shipping and I had a $10 off coupon code that I found out from iLounge. Next I will probably upgrade my hard drive since I only have 30gb.

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Was it installed properly?
How much did you install?
Make? vendor.
Try running with just the new RAM.
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http://docs.info.apple.com/article.html?artnum=106227
http://www.macmaps.com/kernelpanic.html
http://www.thexlab.com/faqs/kernelpanics.html

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BIOS F.66 - 01/24/2013
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This question was solved.
View Solution.

Hi Adam_M,
Welcome to HP forum!
Thank you for you query, I will do my best to assist you.
I understand that you installed additional ram up to 8 GB and you have a startup issue. Here is a link to the HP Pavilion G6 Notebook PC Maintenance and Service Guide SUMMARY. If you note on Page 3, under memory your system only support up to 6 GB of ram. Please let me know if you want any more assistance.
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

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I have an old eMac I am trying to fix up. I got the three beep error message instead of the Macintosh startup BOOM. After finding this document on the website <http://support.apple.com/kb/HT1547> I thought it meant bad RAM. So I got two brand new 512mb since it appears to be this unit’s maximum <http://www.newegg.com/Product/Product.aspx?Item=N82E16820134390> . The eMac appears to be the 1.25ghz model (M9461LL/A). After I installed the new RAM, I am still getting the three beeps error message. Anyone have any ideas what this might going on?

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Rob Grant wrote:
I've just ordered 8G of memory, 4 lots of 2G. I have 2x1G on board already. Will I need to uninstall the original RAM, or will it work happily with the new RAM?
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Rob Grant wrote:
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Charlies Secret Angel-

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Safe Boot
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Dear Forum,
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Go to System Preference control panel Startup Disk and set it.
I'd use Option key to look for your boot drive first time anyway.
NVRAM
Non-volatile random access memory (NVRAM) is the general name used to...
http://en.wikipedia.org/wiki/NVRAM
PRAM: Parameter RAM, a small amount of NVRAM used on Apple Macintosh machines to store configuration information
http://docs.info.apple.com/article.html?artnum=2238
http://www.geocities.com/texas_macman/pram.html
http://www.felipecruz.com/reset-pmu-and-non-volatile-ram-g5.php
... there is a huge at-your-fingertips dictionary-encyclopedia-reference online and a click away...

New RAM problems with my Dual G4 1.25 MDD

Howdy I've had my Dual G4 1.25 MDD for 2 years and love it. I got it with 1GB RAM, thinking I was set. For Christmas I wanted to Upgrade the RAM to 2GB. from My PowerMac G4 Manual I knew I needed 2x 512MB PC2700 DDR333 CL2.5 SDRAM DIMM's.
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PLEASE Any ideas what to do?
1 thing I noticed the RAM gets very very hot, when I've powered down tand removed the new RAM. I wonder if there is a cooling issue?
Anytime I put the Original 1GB RAM in, I dont have problems!

Hi lz3broc,
Sounds very much like faulty RAM to me, I'm afraid. I'm not sure about the temperature it's running at, but if the surrounding DIMMs aren't having a problem then I would definitely point the finger at those new memory sticks not being up to scratch.
If you were convinced it was temperature related then you could always try putting heat spreaders on the memory to help with cooling, but as these stick (semi-permanently) to the RAM then you would never be able to return them.
My personal opinion is that you should send the RAM back and buy two new DIMMs from Crucial Technology. I only ever buy RAM made by them and I've never had a problem with it - it's the same stuff Apple themselves generally use and works a charm every time. Probably not the news you wanted to hear, but that's probably the only way you're going to get a stable machine with 2GB RAM.
Hope that helps,
Andy.
PowerMac G4 Dual 1.50GHz Mac OS X (10.4.4) Liquid Cooled

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New RAM in iBook prevents startup

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