Question about Apple iMac G5 Desktop

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Replacing the hard drive on a imac G5 first generation

I bought a used imac G5 first generation. After a few months it was unable to recognize the hard drive. through some research I've conclude that the hard drive was fried. I thought I had the right drive and some online instructions. I purchased a 300GB Maxtor DiamondMax EIDE Internal Hard Drive. I was clearly wrong and out $100. The connecting pins are completely different and after opening the machine I discovered the previous drive attached to the computer some other, mysterious to me, way other that the three screws I found in my online instructions. Following is all I know about this machine:
Serial number: QP4470ATPP7 
Name: iMac G5 (First model)
Model: M9249 iMac G5 1.8GHz 
Bus speed: 600MHz
Family name: A1058
Screen size: 17 inch
Does anyone know the correct drive that would fit and know where I might find the proper instructions to change out the hard drive. I believe the previous drive was 80GB. I would like to go bigger if possible but I don't want to but the wrong drive again.
Thanks to anyone with the solutions.

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  • fogfocus Jun 28, 2008

    photo of my imac attached

  • fogfocus Jun 30, 2008

    The last response didn't clear up anything. The page he sent me to dose not dig down deep enough to specify the drives for different generation machines. Also these different machines have different instructions for removing the old drives than the one I have as I mentioned in the original question. I hope there is more to this service that I paid for than directing me to a to another web site.

  • martingeorg Jan 29, 2009

    I have the same problem. Did you ever find a solution.

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Http://www.dtgeeks.com/index.php/features/tutorialview/imac_g5_hard_drive_replacement/
the above link wont let u keep on searching for u information but will directly get u the information on how to replace ur hard drive n wat type of hard drive will support ur machine.

feel free 4 further assistance .rate the particular experts solution as fixya that helps u understand n solve ur problem

Posted on Jun 30, 2008

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If you want a 300GB drive..Its works great and has got great reviews except 1 or 2 bad ones. You will get the instruction manual along with the drive. Click on the link below to get it.
http://reviews.pricegrabber.com/hard-drives/m/22955782/
Let me know if there is something else you want to ask.
Regards,
Sai.

Posted on Jun 30, 2008

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See here for imac g5 hard drive upgrade instructions
http://manuals.info.apple.com/en/imacG5_17inch_harddrive.pdf

Posted on Jun 29, 2008

  • 3 more comments 
  • Ekse Jun 29, 2008

    If you look at the original disk and tell me the brand and model details.

  • Ekse Jun 29, 2008

    The original iMac G5 17" with a 40GB or 60GB took a regular ATA drive. The special drive carrier that is enclosed in the iMac holds the hard drive. Do throw this away, you will need it to put the new drive in.

    Any iMac G5 with a 80GB or higher takes the new SATA drives.

    20" iMac G5 all take the new SATA drives.

  • Ekse Jun 29, 2008

    heres what the connectors should look like if it uses sata

  • Ekse Jun 29, 2008

    looking at the manual I can see its sata - you need a sata type drive.

  • Ekse Jun 30, 2008

    If you have any questions let me know, if everything is clear please accept my solution.



    Thank you,

    Ekse

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  • speed matters, too, and the quickest way to get a handle on speed is by asking how fast the drive spins. After all, a 7200 rpm drive has to move data faster than a 5400 rpm drive - or does it?
It's Not That Simple If you've been following the story over on Macworld about different benchmark performance between the 2.0 GHz white MacBook and the 2.0 GHz black one, you might be scratching your head. Except for the hard drive, the two 'Books were configured identically, yet some Speedmark results were quite different.
The MacBooks, like most computers made today, can ship with drives from any of a number of vendors, and Apple has made it easy to swap the hard drive in the MacBook. By slipping a 7200 rpm drive into the black MacBook, it came very close to matching the 5400 rpm drive in the white MacBook.
What's up with that?
My first thought was that perhaps one of the drives had a bigger cache than the other one. I've seen a big difference between 7200 rpm drives with 2 MB and 8 MB caches with my eMacs.
But as I read further, I saw that both drives had 8 MB caches, yet the 5400 rpm Seagate was edging out the 7200 rpm Fujitsu in several tests.
Digging Deeper In the world of notebook computers, 4200 rpm drives used to be the norm, and the first 5400 rpm drives provided a huge speed boost (they spin 28.5% faster). Jumping to 7200 rpm spun drives 1/3 faster than that, but that's not the whole story.
Another way to make drives more responsive is to add a buffer. In the ancient days of personal computing, drives simply read their data and dumped it over a bus to the computer as fast as they read it. Old timers may recall setting the interleave for drives used with the Mac Plus, SE, and II - and wonder why we no longer do that.
Setting interleave slowed down data transfer to a speed these old computers could handle, and then someone came up with the clever idea of building a data buffer (or cache) into the hard drive. Now the drive could read the data at full speed, store it in cache memory, and feed it to the computer at the top speed it could receive data.
And that's why one of my favorite Mac SE speedups is putting in an hard drive with a buffer to replace the ancient bufferless drives Apple used back in 1987.
And the bigger the buffer, the more data in the cache, the more efficient the process.
On top of this, there are different schemes for storing data in the buffer. A drive may look ahead a few sectors, or it may buffer the directory, or it may buffer writes, all of which can make things more efficient.
Physics That's drive electronics, and every brand has their own way of doing things. So you can see why a Seagate, Hitachi, or Fujitsu mechanism might offer different performance despite having identical spin rates and buffer sizes.
But there's a third factor beyond RPM and cache size - data density. Looking at the manufacturer's specs for 5400 and 7200 rpm 2.5" Seagate Momentus and Hitachi Travelstar drives, you'll see that the transfer rate of the 7200 rpm drives is less than 1/3 faster than the 5400 rpm drives - just 9% faster for the Seagate, and a more impressive 28% faster for the Hitachi.
The big breakthrough over the past year or so is perpendicular recording, which can easily store 50% more data per track. Just how much data is there per track? That's hard to know, in part because the manufacturers don't promote the number and also because the amount of data stored per track varies between the inner and outer tracks of a drive platter.
Still, if Drive A spins at 5400 rpm and stores 40% more data per track then 7200 rpm Drive B, it will be able to read more date per second. That might help explain how a 5400 rpm drive can sometimes outperform a 7200 rpm one.
Conclusions Tech Report has an extensive article comparing these four drives. It looks at peak transfer rate, how well each drive handles multiple data streams, and typical read and write speeds. And just as Macworld discovered with the MacBook and both brands of drives, Tech Report says, "At times, those performance differences were surprising, as we certainly didn't expect to see Seagate's Momentus 5400.2 beating Hitachi's Travelstar 7K100 in so many tests."
Various drive parameters can be tweaked, optimizing a drive for use by a single user or in a server, even optimizing for the way an operating system works and how many data streams it may work with at any given time.
In the end, there's more to picking a hard drive than capacity, rotation speed, and buffer size. Seagate, Toshiba, Hitachi, and Fujitsu each have their own buffering algorithms and optimization schemes, so you'll want to look for benchmark results using the hardware and operating system you'll be using. (OS X on Intel Macs may produce very different results than OS X on a G4 or G5 system.)
Price is the final factor (after all, Low End Mac is primarily about value). If ultimate performance isn't crucial and the 5400 rpm drive is a lot less costly, it may well be a better choice for you. But in the end you have to come up with your own value equation - how important is capacity vs. performance vs. price? Replacing the hard drive on a imac G5 first genera - bullet.gif

Posted on Jun 30, 2008

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