Old G4 450 Sawtooth - Multiple Drives - Target Disk Mode ?

So I have had this old computer a long time and have upgraded it over the years as much as it can handle - faster processor, max ram, multiple drives ...
The problem I am having at the moment is only one of the drives will show up in TDM - the one that shows up is the original 20Gb drive. I have a Seagate 500Gb and another Seagate 1.5 Tb drive too. Neither of the Seagates show up in TDM. I haven't cracked it open in a while but seem to remember they are connected via a SATA controller card. Just verified the two SATA connections. The 500Gb drive is my boot drive.
So is there something obvious here that I should understand? Thank you.
Oh I'm connecting to a circa 2007 MBP and Mavericks. The G4 is running Leopard.

I think I found my answer .... unless someone has an idea or info otherwise.
Tip: FireWire Target Disk Mode works on internal ATA drives only. Target Disk Mode only connects to the master ATA drive on the Ultra ATA bus. It will not connect to Slave ATA, ATAPI or SCSI drives.
Doesn't mention SATA but inferring it does include SATA.
Found at:
http://www.appleexaminer.com/MacsAndOS/Analysis/HowTo/Acquisition/acquisition.ht ml

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Why not???
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(23397)

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Enio

PROBLEM AND SOLUTION:
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Thanks in advance,
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Message was edited by: Suz

Okay after testing, I am ready to conceded that you are correct that you can daisy chain an external drive and a TDM Mac together and have them mount both drives.
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Have you also tried resetting the NVRAM?
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You need to do the following:
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1. Open Disk Utility in your Utilities folder.
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Another contributory issue to booting in an older PPC Mac is the PRAM battery.
If the battery is more than four years old, it would likely be a partial cause of odd
startup issues and some settings that are required for the computer to start &
run correctly would not be available. The battery is a 3.6V. 1/2AA Lithium cell.
http://eshop.macsales.com/item/NewerTech/BAA36VPRAM/
A few companies such as macsales.com show them on their web site... sounds
like your old iMac G4 800MHz could use one. Note there are takeapart instruction
pages online such as one from XLR8Yourmac from years ago. The 800MHz is
similar to the later models with faster G4 processors of the same appearance.
The hard drive type utilized is the older ATA/IDE or PATA; uses older formatting.
Tools, thermal paste, and some other tedious details need to be attended to...
•iMac G4 Take-apart for Drive and RAM upgrades:
http://www.xlr8yourmac.com/systems/imac_g4/imacg4_takeapart.html
And another fairly good page w/ larger images:
•Mr Totes' iMac G4 -- taken apart:
http://www.mrtotes.co.uk/page1/page1.html
Sometimes the power supplies and other components can be the cause of issues
in these iMac G4 models, you can test the power output by using the test ports
that are located in the same compartment as the upgrade RAM slot & wi-fi card.
You may be able to find a copy of an original Apple service manual for that iMac.
Those are harder to get, and used to be available to Apple trained technicians.
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Try moving smaller groups of files. I' guessing that you don't have a backup huh?

Old G4 450 Sawtooth - Multiple Drives - Target Disk Mode ?

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