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Mac Forum / General / General / April 2007



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iMac G5 Hard Drive Q

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Lorenzo Thurman - 26 Apr 2007 22:21 GMT
I have an original iMac G5 from 2004 and I was looking at the hard drive
while replacing the power supply and noticed a black four-wire cable
that connects from the front of the drive to an area on the main board
near the RAM slots. What is that cable for? I know its not the SATA or
power cable, but I could not info on it even at Seagate's web site. How
does one remove it?
TIA
Paul Fuchs - 26 Apr 2007 22:48 GMT
> I have an original iMac G5 from 2004 and I was looking at the hard drive
> while replacing the power supply and noticed a black four-wire cable
[quoted text clipped - 3 lines]
> does one remove it?
> TIA

I don't have a clue to the answers to your question, but I also noticed
this cable and wondered.  I also wonder why you are replacing the power
supply yourself as this machine's PS is covered with a three year
extended warranty.  My rev1 iMac 65 1.8 20" is awaiting approval for
it's third PS.
Lorenzo Thurman - 27 Apr 2007 14:47 GMT
>> I have an original iMac G5 from 2004 and I was looking at the hard drive
>> while replacing the power supply and noticed a black four-wire cable
[quoted text clipped - 9 lines]
> extended warranty.  My rev1 iMac 65 1.8 20" is awaiting approval for
> it's third PS.

I called Apple and specifically asked about the warranty. I'm aware of
the issues with power supplies and the iMacs. I was told that my
computer did not qualify. The tech looked up my serial number and said
the only iMacs that qualified were manufactured between May and October
of 2005. I thought he was wrong, but he insisted this was correct.
Paul Fuchs - 27 Apr 2007 20:45 GMT
> >> I have an original iMac G5 from 2004 and I was looking at the hard drive
> >> while replacing the power supply and noticed a black four-wire cable
[quoted text clipped - 15 lines]
> the only iMacs that qualified were manufactured between May and October
> of 2005. I thought he was wrong, but he insisted this was correct.

Well, Lorenzo, I think you just got a royal screwing.  There are two
iMac extended warranties and they are unrelated.  The May thru Oct one
is the rev b 20" model and is only for power supplies.  The other one,
which should apply to you, is for the rev A model and covers both power
supplies and logic boards.  This is the model I have.  The relevant
serial numbers (copied right off the Apple site) are:

_____________

The affected iMac G5 computers have serial numbers where the first 5
digits fall into the ranges noted below.

Serial Number ranges:
       •       W8435xxxxxx - W8522xxxxxx
       •       QP435xxxxxx - QP522xxxxxx
       •       CK435xxxxxx - CK522xxxxxx
       •       YD435xxxxxx - YD522xxxxxx

Some second generation iMac G5 computers have serial numbers that fall
within the upper band of the ranges listed below. Only first generation
iMac G5 computers are affected by this pr

__________________________
Check your serial number against this and let us know.

By the way, how did you get a power supply to install yourself?  Apple
usually won't sell parts to consumers - a royal pain in the a.s.
Sometimes I am tempted to switch to the dark side.
Lorenzo Thurman - 27 Apr 2007 21:13 GMT
>>>> I have an original iMac G5 from 2004 and I was looking at the hard drive
>>>> while replacing the power supply and noticed a black four-wire cable
[quoted text clipped - 43 lines]
> usually won't sell parts to consumers - a royal pain in the a.s.
> Sometimes I am tempted to switch to the dark side.

Thanks, for the info. I will followup with Apple. Anyway, I got the
power supply from a 3rd party. http://www.dvwarehouse.com/
Lorenzo Thurman - 27 Apr 2007 14:49 GMT
>> I have an original iMac G5 from 2004 and I was looking at the hard drive
>> while replacing the power supply and noticed a black four-wire cable
[quoted text clipped - 9 lines]
> extended warranty.  My rev1 iMac 65 1.8 20" is awaiting approval for
> it's third PS.

I just noticed you list a 20" iMac, yes, those from the first generation
also qualify, but not my 17".
Jolly Roger - 27 Apr 2007 01:13 GMT
> I have an original iMac G5 from 2004 and I was looking at the hard
> drive while replacing the power supply and noticed a black four-wire
> cable that connects from the front of the drive to an area on the main
> board near the RAM slots. What is that cable for? I know its not the
> SATA or power cable, but I could not info on it even at Seagate's web
> site. How does one remove it?

There are two cables: a smaller power cable, and a larger data cable.
The data cable is a serial ATA cable - what makes you think it's not
the SATA cable?

Signature

JR

Lorenzo Thurman - 27 Apr 2007 14:43 GMT
>> I have an original iMac G5 from 2004 and I was looking at the hard
>> drive while replacing the power supply and noticed a black four-wire
[quoted text clipped - 6 lines]
> The data cable is a serial ATA cable - what makes you think it's not the
> SATA cable?

You mis-understand. Those connectors are on the back end of the drive
and are ribbon cables. I know what those are for. This four-wire
connection is on the front of the drive and connects into an area just
under the RAM slots.
Jolly Roger - 27 Apr 2007 15:27 GMT
>>> I have an original iMac G5 from 2004 and I was looking at the hard
>>> drive while replacing the power supply and noticed a black four-wire
[quoted text clipped - 11 lines]
> connection is on the front of the drive and connects into an area just
> under the RAM slots.

Oh I see it now. That's the temperature sensor connector. There's a
small temperature sensor attached to the drive. Should you replace the
drive, you'll need to transfer that sensor from the old drive to the
new drive.

Signature

JR

Lorenzo Thurman - 27 Apr 2007 18:16 GMT
>>>> I have an original iMac G5 from 2004 and I was looking at the hard
>>>> drive while replacing the power supply and noticed a black four-wire
[quoted text clipped - 16 lines]
> drive, you'll need to transfer that sensor from the old drive to the new
> drive.

How do you remove it? I kind of poked around it but does not seem easy.
Jolly Roger - 27 Apr 2007 20:24 GMT
>>>>> I have an original iMac G5 from 2004 and I was looking at the hard
>>>>> drive while replacing the power supply and noticed a black four-wire
[quoted text clipped - 18 lines]
>>
> How do you remove it? I kind of poked around it but does not seem easy.

It appears to be held on by some sort of adhesive.  Sorry i can't tell
you more.

Signature

JR

Niels Jørgen Kruse - 28 Apr 2007 09:20 GMT
> >>>>> I have an original iMac G5 from 2004 and I was looking at the hard
> >>>>> drive while replacing the power supply and noticed a black four-wire
[quoted text clipped - 21 lines]
> It appears to be held on by some sort of adhesive.  Sorry i can't tell
> you more.

It is glued onto a piece of metal supporting the harddisk. Unscrew this
piece of metal from the harddisk.

Signature

Mvh./Regards,    Niels Jørgen Kruse,    Vanløse, Denmark

Jolly Roger - 28 Apr 2007 15:48 GMT
>>>> Oh I see it now. That's the temperature sensor connector. There's a
>>>> small temperature sensor attached to the drive. Should you replace the
[quoted text clipped - 8 lines]
> It is glued onto a piece of metal supporting the harddisk. Unscrew this
> piece of metal from the harddisk.

I think Apple may have done that on *some* models, but on others, it
appears it's simply attached directly to the hard dive body frame:

    <http://jollyroger.kicks-ass.org/jollyroger/imacg5hd1.png>
    <http://jollyroger.kicks-ass.org/jollyroger/imacg5hd2.png>

(Don't ask me which came first though.)

Is the hard drive is a user-serviceable part on the iMac G5?

Signature

JR

matt neuburg - 28 Apr 2007 16:53 GMT
> Is the hard drive is a user-serviceable part on the iMac G5?

Boy, is it ever.

<http://manuals.info.apple.com/en/imacg5_20inch_HardDrive.pdf>

m.

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Tiger - http://www.takecontrolbooks.com/tiger-customizing.html
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Jolly Roger - 28 Apr 2007 18:03 GMT
>> Is the hard drive is a user-serviceable part on the iMac G5?
>
> Boy, is it ever.
>
> <http://manuals.info.apple.com/en/imacg5_20inch_HardDrive.pdf>

I don't see the sensor mentioned at all in that document.

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JR

Michelle Steiner - 28 Apr 2007 18:35 GMT
> > Is the hard drive is a user-serviceable part on the iMac G5?
>
> Boy, is it ever.
>
> <http://manuals.info.apple.com/en/imacg5_20inch_HardDrive.pdf>

But not the iMac G5 with built-in iSight.

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Support the troops:  Bring them home ASAP.

matt neuburg - 28 Apr 2007 23:52 GMT
> > > Is the hard drive is a user-serviceable part on the iMac G5?
> >
[quoted text clipped - 3 lines]
>
> But not the iMac G5 with built-in iSight.

But that isn't the one the OP's got.

m.

Signature

matt neuburg, phd = matt@tidbits.com, http://www.tidbits.com/matt/
Tiger - http://www.takecontrolbooks.com/tiger-customizing.html
AppleScript - http://www.amazon.com/gp/product/0596102119
Read TidBITS! It's free and smart. http://www.tidbits.com

Michelle Steiner - 29 Apr 2007 02:35 GMT
> > > > Is the hard drive is a user-serviceable part on the iMac G5?
> > >
[quoted text clipped - 5 lines]
>
> But that isn't the one the OP's got.

But the question, as posed in that message, is generic.  Someone reading
it, and not knowing the back story, could be misinformed if he has the
later model.

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Support the troops:  Bring them home ASAP.

Niels Jørgen Kruse - 29 Apr 2007 07:15 GMT
> > > Is the hard drive is a user-serviceable part on the iMac G5?
> >
[quoted text clipped - 3 lines]
>
> But not the iMac G5 with built-in iSight.

Lorenzo Thurman has an original iMac G5.

Signature

Mvh./Regards,    Niels Jørgen Kruse,    Vanløse, Denmark

 
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