Identifying my PowerMac

I'm trying to identify a computer that I bought used a few years ago.
Here's what it says under the hardware section of the System Profiler:
Machine Model: PowerMac G3 (PCI Graphics)
CPU Type: PowerPC G4 (2.6)
So is this a G3 or a G4? The case looks more like the pictures I've seen of G4s.
Thanks in advance for any input. Ultimately , what I'm trying to do is troubleshoot why this computer won't start up in Target Disk mode. I'd like to transfer files onto my new MacMini.
Thanks,
Greg
MacMini Mac OS X (10.4.6)

There's no ADB port and the sound ports are aligned horizontally. However while looking back there, I saw the words "Power Macintosh G4". Sorry I didn't notice that before. I was confused by the information in System Profiler.
After doing some more research and reading article #58583, it appears you're right and I do actually have one of those older G4s that won't start up in Target Disk mode.
I guess I'll research how to connect my computers via Ethernet or Firewire and IP.
Thanks for your help everyone.
MacMini Mac OS X (10.4.6)

Similar Messages

Correctly Identifying the PowerMac G4 MDD I Own

Back in the fall as a spare house computer, I picked up a PowerMac G4 MDD Dual 1.42 Tower. As I do all the upgrading, repair and/or maintenance on our computers this particular PowerMac is throwing me for a loop as far as properly identifying it in knowing the exact model I can draw from in order to obtain the correct parts etc. It appears that this particular Tower has gone through quite a metamorphosis in its lifetime in that the side outer case label serial number/description indicates that it was originally a Dual 1.0 GHz while the serial number listed in "About This Mac" when referenced here in the Support "Tech Specs" section list it as a MDD Dual 1.25 GHz . To complicate matters the same "About This Mac" tab as well as within the "System Profiel" itself list my MDD as a "Dual 1.42 GHz Power PC G4 2 MB L3 cache per processor" respectively. In doing my own research, it would appear that the original Dual 1.0 GHz processor was upgraded at some point to a Dual 1.42 GHz. This all makes as my G4 MDD Dual 1.42 GHz does not possess a Firewire 800 port and despite having four (4) RAM slots, it appears to max out at 2 GB's. My conclusion therefore has been to assess that in all other instances other then the processor itself, I still basically have a PowerMac G4 Dual 1.0 GHz and therefore if I should ever need to make repairsand/or acquire additional parts as far as following the correct specs as a guidline I should look only at this model as a reference. My question is I am correct in this assumption or is there anything additional I should consider or be informed about ?

Sounds like your assumptions are correct, but the ramifications have little limitation with regard to parts, upgrades.....
In the long run, and unless you have a FW800 logic board, the only parts that are different between all the MDD/FW800 machines are the logic boards and Airport/Airport Extreme cards.
All the MDD/FW800 machines can use the same drives, optical and hard, same 2GB max RAM (PC2700 except for the DP 867 MDD, 1.0 FW800), same 4x AGP graphics cards, same PCI cards, same PSU, same power switch board, etc., etc.
Only the logic boards are different within the MDD/FW800 models, and non-FW800 MDDs can only use the Airport 802.11b card, not the Airport Extreme 802.11g card that FW800 boards use.
The installation of the 1.42 processors on the earlier DP 1.0 GHz machine actually made life easier, as the later 1.0 GHz machine had a slower logic board bus and required resistor moves.....

Can you help me identify which PowerMac G5 I have?

I think it's one of the later models -- if webpages are to be believed -- but I need to be sure before I start getting hardware for it.
Here's the specs from the Hardware Overview in System Profiler:
Machine Model: PowerMac7,3
CPU Type: PowerPC G5 (2.2)
Number of CPUs: 2
CPU Speed: 2 GHz
L2 Cache (per CPU): 512 KB
Memory: 2 GB
Bus Speed: 1 GHz
Boot ROM version: 5.1.8f7
Serial Number: G84251FKQPR
Feel free to ask for more information if you need it.
I recently received this nice older Mac as a hand-me-down from my father, who bought it on eBay from a university film studio that was upgrading their hardware.
It lacks wireless networking capabilities at the moment, and I'd like to fix that. I need to make sure I get the right kind of AirPort card (or whatever I need) in order to acheive this. I'm not familiar with the PowerMac G5 model, so I could use some advice. Information on the web is a little confusing to me.
I'd also like to know what maximum possible RAM (and what kind) this lovely silver beast can take on.
And I understand that Leopard (not to be confused with Snow Leopard) is the most recent version of the Mac OS X I can install on here. I need to make sure I get the "retail" version, right?
And I'd like to hear what other bells and whistles I can get for it that I'm not already aware of. I want to make a project out of this.
Thanks for your help, my fellow Apple fans!

Hello,
It's not a later model, put the Serial# on one of these sites, but don't post the Serial# here...
http://www.chipmunk.nl/klantenservice/applemodel.html
http://www.appleserialnumberinfo.com/Desktop/index.php
Also here it is one of these two, likely the 1st one...
http://www.everymac.com/systems/apple/powermac_g5/stats/powermac_g5_2.0_dp_2.htm l
http://www.everymac.com/systems/apple/powermac_g5/stats/powermac_g5_2.0_dp_pci.h tml
I need to make sure I get the right kind of AirPort card (or whatever I need) in order to acheive this...
While Airport cards & Antennas can be had, I'd recommend one of these that has better range & such...
http://eshop.macsales.com/item/Newer%20Technology/MXP2802NU2C/
If it is indeed the 1st one, 8 RAM slots vs. 4 RAM slots on the later one, the 8 GB, 1 GB per slot on either model...
http://eshop.macsales.com/item/Other%20World%20Computing/3200DDR2GBP/
I need to make sure I get the "retail" version, right?
Correct, no Gray Intel Machine specific Discs.
Leopard requirements/10.5.x...
    * Mac computer with an Intel, PowerPC G5, or PowerPC G4 (867MHz or faster) processor
minimum system requirements
    * 512MB of memory (I say 1.5GB for PPC at least, 2-3GB minimum for IntelMacs)
    * DVD drive for installation
    * 9GB of available disk space (I say 30GB at least)
Trouble is Apple no longer sells it, check eBay & such for the Retail version, not the Gray Discs...
http://www.ebay.com/sch/i.html?_nkw=mac+os+x+leopard+retail+10.5
Other bells & whistles...
SATA cards, PCI Wifi cards, & a few others, like a faster Video card.
See japamacs page here on the best AGP cards for G4s & G5s...
http://www.jcsenterprises.com/Japamacs_Page/Blog/4B4B7BA2-7ABB-47F1-87AC-B03D379 42BEE.html
Top slowest, bottom fastest.

Booting From An External Drive in OS 9.2?

I have a G4 with a bad internal ROM drive. I am currently running OS 9.2.
I would like to upgrade to OS 10.
I have an Iomega USB 2.0 external drive connected to my computer via the USB port in the back.
How can I boot from the disk in this external drive?
I tried holding "option"- it only found my regular hard drive.
I tried holding "cmd-opt-shift-del" but my mac got very confused and blinked a ? at me.
How can I boot from the external drive so I can upgrade?
Thanks
O.

Welcome to Apple Discussions!
Mac OS X will not boot from USB drives on a PowerPC.
You need a Firewire optical drive to boot, and an AGP PowerMac G4 at that to boot Mac OS X. To identify your PowerMac G4, see this article:
http://docs.info.apple.com/article.html?artnum=58418
Once you've identified it, boot the machine into Mac OS 9 on the hard drive and make sure your firmware is up to date:
http://docs.info.apple.com/article.html?artnum=86117
And then you'll be able to install Mac OS X. Follow these precautions on my FAQ before doing so:
http://www.macmaps.com/upgradefaq.html
If it turns out you have a PCI PowerMac G4, you'll have to replace the optical drive internally to boot Mac OS X or Mac OS 9.
Also make sure your clock battery is under 4 years old before attempting to upgrade the firmware. It is a 3.6 V 1/2 AA battery you can buy from Radio Shack item 23-026.

HT1752 Ineed a new lithium 3.6v battery for my G4. Do you know the size, and where to buy it? Thank you, Shaby.

Hi, I need to change my old lithium battery 3.6v on my G4.
Do you know the size of this battery, and where to buy it on the web?
Thank you. berdavid.

You need to identify your PowerMac G4's specific model.
Refer to these guides: http://www.ifixit.com/Device/Power_Mac

Power Mac G4 can install OS 10.3.5 ?

My Power Mac G4 original OS is 10.1.2, can I upgrade it to OS 10.3.5 ?

Identify which PowerMac G4 you have here:
http://docs.info.apple.com/article.html?artnum=58418
Then if necessary, boot into Mac OS 9 via Apple menu -> System Preferences -> Startup Disk and run the firmware update for the appropriate PowerMac G4 here:
http://docs.info.apple.com/article.html?artnum=86117
Once the firmware is updated, backup your data as my FAQ explains:
http://www.macmaps.com/backup.html
And then you may be able to Archive and Install the retail version of 10.3 or 10.4. See these precautions before upgrading that I've written:
http://www.macmaps.com/upgradefaq.html
The Archive and Install procedure is here:
http://docs.info.apple.com/article.html?artnum=107120 for 10.3
and here for 10.4:
http://docs.info.apple.com/article.html?artnum=301270
Not everyone has succeeded archiving and installing from Puma (10.1) to Panther (10.3), or Jaguar (10.2) to Tiger (10.4), but it may be possible to do a two version upgrade with Archive and Install assuming your system is properly setup according to my upgrade FAQ. I've not done it myself. In the worst case scenario you may have to erase and install, and restore from your backup with the migration/setup assistant.
http://docs.info.apple.com/article.html?artnum=25773

Only two of four DIMM slots seem to work, what is going on?

My machine has 2x128Mb RAM factory installed. I just purchased 2x256 modules from Apple. When I installed new modules in open slots, only the new modules were found. In other words, machine showed I had 512Mb RAM. Then I switched the location of the modules, old to outer slots, new to inner, and now machine thinks I have only 256Mb RAM.
I am sure the modules are seating in the connectors.
Help!
Tim

Use my FAQ to identify your PowerMac G5:
http://www.macmaps.com/macosxnative.html#IDENTIFY
Once you know which generation it is, follow the spec database mentioned to learn what module you should have, and see if it matches that which the system profiler says you have. The System Profiler is in Apple menu -> About This Mac -> More Info

PowerMac G5 hangs after going into screen saver power save mode

I have a PowerMac G5 and it's been working fine, but as of late has been hanging. I had a couple of external disks on the machine ( Maxtor OneTouch II and a OneTouch III). I recently added two more OneTouch III and stripped the three OneTouch III's together in a RAID set. I'm wondering if that is causing the hangs, but I've also seen it hang without the RAID so I'm not convinced it's the RAID.
Anyway, I can't figure out what's causing it to hang, but it seems to hang at some point after the screen saver runs and then the screen goes into power saver mode. It's not hung right when it shuts down the monitor, but at some point after that.
When it gets in this mode, I can't remotely login using ssh and I can't seem to wake it up. What I end up having to do is to hold the power button down for several seconds until the machine powers off.
In an attempt to see what's going on, I set the OS X monitor power save mode to "never", but I don't think I left it that way long enough and I never saw it hang.
Does anyone have any debugging tips that would help me identify the culprit?

I've been having the same troubles lately. Seem
since the JAVA update. It hangs completely after the
screen is shut down. Every morning I have to reboot
with the power button.
I am also joining the crowd with this issue. I have a 15" Powerbook G4 that has acted normally until recently. Not sure exactly when it started, but about the same time as the recent updates. Similar behavior to the previous forum posts.
When I manually put the laptop to sleep it freezes up before it sleeps and the multi-language reboot warning comes up. This also happens if it is set to auto-sleep after xx minutes.
When I try to wake it up, the screen is black and the power light shows it is on and it never unfreezes or I get the reboot message.
I have tried everything I can think of to troubleshoot this. I just re-installed the 10.4.8 update over the exisiting one (using an external boot drive made with SuperDuper) and it still happens... BUT when I put the laptop to sleep with the startup drive being external, it seemed to behave properly. I can't figure this out since the external clone was made only minutes earlier from the laptop... and it works. I have zapped PRAM, and done the battery removal / power button reset.
Below is the "report" I have been getting - and sending to Apple. They must be getting tired of the many I have sent.
Any thoughts out there?
Thanks.
Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x0000000000000020 PC=0x00000000002FA2A4
Latest crash info for cpu 0:
Exception state (sv=0x32E70000)
PC=0x002FA2A4; MSR=0x00009030; DAR=0x00000020; DSISR=0x40000000; LR=0x002E31B0; R1=0x1793BCD0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x002E31B0 0x002AE920 0x002F2EF4 0x0003C884 0x000A9314
Proceeding back via exception chain:
Exception state (sv=0x32E70000)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x2D24BC80)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
Kernel version:
Darwin Kernel Version 8.8.0: Fri Sep 8 17:18:57 PDT 2006; root:xnu-792.12.6.obj~1/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x00095138 0x00095650 0x00026898 0x000A7E04 0x000AB780
Proceeding back via exception chain:
Exception state (sv=0x32E70000)
PC=0x002FA2A4; MSR=0x00009030; DAR=0x00000020; DSISR=0x40000000; LR=0x002E31B0; R1=0x1793BCD0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x002E31B0 0x002AE920 0x002F2EF4 0x0003C884 0x000A9314
Exception state (sv=0x2D24BC80)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
Kernel version:
Darwin Kernel Version 8.8.0: Fri Sep 8 17:18:57 PDT 2006; root:xnu-792.12.6.obj~1/RELEASE_PPC
Model: PowerBook5,8, BootROM 4.9.5f3, 1 processors, PowerPC G4 (1.5), 1.67 GHz, 1 GB
Graphics: ATI Mobility Radeon 9700, ATY,RV360M11, AGP, 128 MB
Memory Module: SODIMM0/J20STANDARD, 1 GB, DDR2 SDRAM, PC2-4200S-444
AirPort: AirPort Extreme, 405.1 (3.90.34.0.p18)
Modem: Jump, , V.92, Version 1.0,
Bluetooth: Version 1.7.8f2, 2 service, 0 devices, 1 incoming serial ports
Network Service: Built-in Ethernet, Ethernet, en0
PCI Card: pci106b,4318, sppci_othernetwork, SLOT-A
PCI Card: TXN,PCIXXXX-00, cardbus, PC Card
PCI Card: usb, usb, USB20
PCI Card: usb, usb, USB20
PCI Card: usb, ehci, USB20
Parallel ATA Device: Hitachi HTS721010G9AT00, 93.16 GB
Parallel ATA Device: MATSHITADVD-R UJ-846,
USB Device: Bluetooth HCI, , Up to 12 Mb/sec, 500 mA
USB Device: Apple Optical USB Mouse, Mitsumi Electric, Up to 1.5 Mb/sec, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA
15" G4 PowerBook 1.67 Mac OS X (10.4.8)
G5 2.7 Gig Mac OS X (10.4.4) 3 Gig ram
15" G4 PowerBook 1.67 Mac OS X (10.4.8)

Transfer data from Powermac G4 to new 27" iMac

I have a 2003 PowerMac G4 that I am replacing with a new 27" iMac 3.4 i7 which is on order. I want to transfer my photos and iTunes files to the new machine. I had purchased a LaCie d2 USB3/Thunderbolt harddrive in hopes of backing up the G4 but it is "not supported by this architecture". The G4 was updated to USB 2. The LaCie is USB3/USB2 compatible.
Can I use Migration Assisant going form a pre-Intel computer to an Intel based computer? Is there a Firewire 800 to Thunderbolt or USB 3 cable? There is about 200 GB that I need to transfer.
Any suggestions?
Hardware Overview:
Model Name:          Power Mac G4
Model Identifier:          PowerMac3,6
Processor Name:          PowerPC G4 (3.3)
Processor Speed:          1 GHz
Number Of CPUs:          1
L2 Cache (per CPU):          256 KB
L3 Cache (per CPU):          1 MB
Memory:          2 GB
Bus Speed:          133 MHz
Boot ROM Version:          4.5.7f1
Serial Number (system):          XB31102SN1S
Hardware UUID:          00000000-0000-1000-8000-000393CACB46
FireWire Bus:
Maximum Speed:          Up to 800 Mb/sec
System Software Overview:
System Version:          Mac OS X 10.5.8 (9L31a)
Kernel Version:          Darwin 9.8.0
Boot Volume:          Macintosh HD
Boot Mode:          Normal

Please pardon the intrusion…
Congratulations on making Level 6, Eric. We've already started the celebration in The Lounge without you, but it would be ever so much nicer if you would join in.
Hope to see you there soon.

Can't Burn Optical Disks on Powermac G5

I have two DVD drives on my PowerMac System - the original Pioneer drive in the tower and an external TDK drive (2004 vintage) that can be attached by either firewire or USB2. Neither drive will accept a DVD or CD to burn after installation of Tiger. Here's what happens:
When I insert the disk, I get a message that says:
"The disk cannot be used because it is not recognized."
If I go to the disk utility and request additional information, however, it clearly shows the drive, the media type (even though it does not show up on the desktop) and the media characteristics, e.g.:
"Media is present: Yes
Media is busy: No
Media Type: DVD-RW
Media is blank: Yes
Media is appendable: Yes." etc. etc.
This information is shown for both the internal Pioneer drive and the external TDK drive.
Finally, when I try to erase the drive in Disk Utility, I get the following message:
"Erase of optical media did not complete or completed with error."
I have tried this with DVD-R, DVD-RW, DVD+R, DVD+RW, CD-R, CD-RW media. Same results in every case.
HOWEVER: HERE'S WHERE IT GETS INTERESTING: I can burn any supported optical disk on the internal drive of my MacBook Pro AND I can burn disks with the TDK drive attached to the MacBook Pro via USB2 but NOT attached via the Firewire port!!!! (The TDK drive will NOT burn on the PowerMac G5 regardless of how attached.)
Both optical drives were working on the PowerMac under Tiger and only stopped working after the Leopard install. Has anyone else had this burn problem on a PowerMac G5? I've found a few problems identified in this forum on reading installation disks, but few on burning CD/DVDs after installation. Is there a simple fix I'm not finding in the Leopard support resources or is this a significant bug in the 10.5 release?
Any feedback would be greatly appreciated.
Mike

This gets more strange by the moment. Toast will see AND burn the blank DVD/CDs when inserted, at least when using the PowerMac's internal Pioneer burner. (I haven't tried it on the external TDK burner.) I changed DVD/CD System Preferences from "Show in Finder" to "Launch Toast Titanium" and had no problems. The application launched on DVD insert and did the data burn flawlessly, though a bit slower than I remember it being on Tiger.
But there is still this inconsistency between the PowerMac and the MacBook Pro. On the former, Leopard simply refuses to recognize any media placed in the internal burner, but on the MacBook Pro insertion of a DVD/CD functions just like Tiger used to - mounts the untitled media on the desktop, allows drag and drop file adds, and allows burning by OSX finder or menu. Has to be some strange bug in Leopard code for a PowerMac G5.

What do I buy to make my PowerMac wireless?

I have a PowerMac G5 Tower that I would like to make wireless, but unsure on what to buy. I tried the Airport Express, and went back and forth with Apple Support, but we couldn't get it to work. I don't know what year my computer is, as it was purchased from a friend. I can tell you its running Mac OSX version 10.5.6, its a dual 2.5ghz PowerPC G5, and has 4.5gbs DDR SDRAM

Look in System Profiler to see what the model identifier is (it'll be something like PowerMac7,3). Since you say that it has DDR SDRAM and not DDR2 SDRAM, it sounds like you would have the June 2004 model. While you're in System Profiler, click on the Airport Card section - it should say that there's no hardware found.
If you indeed have the June 2004 model, then you simply need to acquire Apple's Airport Extreme card (and antenna if you don't already have it). The card can be obtained <a href-"http://www.mac-pro.com/Apple-AirPort-Extreme-Card?sc=2&category=409>here and the antenna is here.
Only the Late 2005 G5s used the Airport/Bluetooth combo card that was only a BTO option.
As you've discovered, the Airport Express won't do anything to make your G5 wireless capable. Your G5 has to connect to the Airport Express, but it needs to have the wireless hardware to do so.

Whats the biggest hard disk my PowerMac G5 can hold?

Greetings!
I got a hold of a PowerMac G5 recently, rather cool machine!
Anyway, i want to use it as a fileserver and also for backups of me and my family members computers so im going to need some big hard disks!
Unfortunately PPC macs wont boot from GUID partitioned hard disks so i have 1 hard disk bay free (Whilst the other holds the boot drive) Unless i find some super nice fellow willing to sell me a G5 Jive card rather cheap
At the moment i have a 2TB Samsung Spinpoint (HD204UI) that i could use however before i go messing around inside the system i'd like to know if such high capacity drives will work in the system at all? As far as im aware some hard disks need certain pins/jumpers connected so they run at the slower speed and such. I recall reading something about AFT being an issue as well?
Any information is appreciated, i have listed the system information below as well if it helps.
Model Name:    Power Mac G5
Model Identifier:    PowerMac11,2
Processor Name:    PowerPC G5 (1.1)
Processor Speed:    2 GHz
Number Of CPUs:    2
L2 Cache (per CPU):    1 MB
Memory:    1 GB
Bus Speed:    1 GHz
Boot ROM Version:    5.2.7f1

There may be an upgrade potential with a PCI card or other hardware;
not sure. The data rate according to MacTracker for the model you
have is 1.5GBps or so. Without some hardware upgrade, that may not
be surpassed. A 2TB to 4TB HDD should be an easy upgrade.
•PowerMac G5 (Late 2005)
Introduced    October 2005
Discontinued    August 2006
Model Identifier    PowerMac11,2
Model Number    A1117
EMC    2023
Order Number    M9590LL/A (2.0 GHz), M9591LL/A (2.3 GHz), M9592LL/A (dual 2.5 GHz)
Built-in Memory:    None
Maximum Memory    16 GB
Memory Slots    8 - 240-pin PC2-4200 (533MHz) DDR2 ECC or NECC SDRAM (matched pairs)
Graphics Card    NVIDIA GeForce 6600 LE, GeForce 6600, GeForce 7800 GT, Quadro FX 4500
Graphics Memory    128 MB (6600 LE) or 256 MB (6600, 7800 GT) or 512 MB (Quadro FX 4500)
Display Connection    1 - DVI and 1 - dual-link DVI (6600 LE/6600/7800 GT) or 2 - dual-link DVI and 1 - stereo 3D port (Quadro FX 4500)
Display Modes    Dual display extended and video mirroring
Expansion:
Slots    2 - 4-lane, 1 - 8-lane, 1 - 16-lane PCI Express
Bays    2 - Internal 3.5" Serial ATA drive bays, 1 - optical drive bay
Hard Drive Interface:    2 - 1.5 Gbps Serial ATA (SATA) controllers
{according to the http://mactracker.ca free database application}
You may be able to contact a product specialist or reseller of upgrade
parts, to see what the upper limits are to a stock last model G5 tower.
I see some options here, but not certain of product boundaries:
http://eshop.macsales.com/shop/hard-drives/3.5-SerialATA/
The above company does offer pre-purchase support, to help get what
works; and from reports by other Apple users, they also do, afterward.
At least with an internal 3.5" HDD, these run 7200 RPM, and so should
be fairly quick at moving data; the computer drive bus may be a slow
link in the chain, when a modern drive may be faster at in this aspect.
Same if you were to choose too-high spec SSD, instead of closer match.
The replacement or upgrade hard disk drives may be somewhat backward
compatible to older spec data rates; so that may be an answer of a sort.
A few of the listed HDDs and perhaps a SSD look promising. OWC does offer
some legacy SSD products that can be used in slower data bus situations.
Other specs may be found at http://everymac.com regarding this PM G5.
Not sure if this helps...
Good luck & happy computing!

Airport - PowerMac vs iBook G4

Hi, I have a PowerMac G5 and the above iBook G4. The G5 struggles to pick up the wi-fi signal in my flat whereas the G4 has no problem. Bars barely register (although it comes and it goes) on the G5 yet it's a full set on the other one. They're sat right next door to each other as well. I don't know why this is. Is there some easy fix to improve G5 reception?
Thanks,
Stephen.

If your Power Mac G5 is the model that requires an external AirPort antenna, you may want to check it to see if it is installed properly. (ref: Power Mac G5: How to Identify External AirPort and Bluetooth Antennas)

OK to use 10.5 installations on different Model Identifiers in same family?

Hi All,
Can I install 10.5 on a G5 (ie, Model Identifier PowerMac11,2), but then remove the hard drive and use it without issues in a different G5, (ie, Model Identifier PowerMac7,3)?
We've made an image using a G5 PowerMac11,2 and used this image to restore onto other PowerMac11,2's without issues. But will this same image work OK on other PowerMac G5's, or do we have to create a new, separate image for each Model Identifier so all drivers, kernel extensions, etc work properly?
Thanks for any insight you might have.

Hiya, and sorry to jump in there.
Whilst - purely technically speaking - there should be no reason that Leopard should cause issues on older Macs such as G5's. Maybe, I was unlucky, but I, like a fair few others did in fact have quite a few issues:
http://www.mac-forums.com/forums/apple-desktops/119875-g5-dual-2ghz-having-probl ems-leopard.html (Rosetta??)
http://revver.com/video/474761/os-x-105-leopard-problems-on-g5/
http://discussions.apple.com/thread.jspa?threadID=1917122&tstart=15
Now, I am all in favour of moving on from older to newer technologies, but I (personally) think, that the processor in older Macs, whilst diligently performing well until Tiger, may find it hard to cope with Leopard, the stepping stone to Snow Leopard http://www.apple.com/macosx/snowleopard/
Apart from that, you cannot run Boot Camp (I think, photobooth and some other apps are also affected) on an older "Power PC" processor architecture. You'd need virtual PC for that.

Using ioreg to identify a specific CPU

Hi all,
I'm trying to repair a PowerMac G5 I got off of eBay. It's a dual 2.0GHz model, I believe 1st generation (PowerPC 970 v2.2 chips). I believe I've narrowed down the problem to a single bad, slowly failing CPU.
I get the machine to boot up w/two CPUs active only for between a few mins. to an hour or two. Then it freezes up and I have to press the "on" button for the usual 5secs. or so to get it to shutdown.
When I get the machine back up (sometimes immediately, sometimes after repeated pressing the power button), it generally comes up with only 1 CPU running. with only 1 CPU running, the machine stays up and stable for days at a time.
I generally have had the machine boot-up maybe 1/3 of the time w/2 CPUs active. The rest of the time only 1 CPU comes up.
I've confirmed the two different states several ways: (a) looking in Apple System Profiler, (b) System Preferences/Processor (after installing the CHUD tools), and (c) running sysctl -a from the command line and diff-ing the results from each boot-up. All show either 2 CPUs running, or only 1 CPU active.
Looking in ioreg , specifically the class IOPlatformDevice, in Tiger (10.4.11) I see the property AAPL,phandle which seems to have a value of an address.
Which property in which class in ioreg contains the actual "location" of each active CPU?
In the PowerMac G5s (dual models) the CPUs are arranged vertically on the motherboard (when the tower is in the usual upright position). In the PM G4s (dual models) the CPUs are arranged horizontally.
I'd like to just identify (and replace) the one defective CPU in the G5 rather than both.
Any tips or links to documentation on ioreg, would be greatly appreciated!
Ed

In reading the ADC documentation, I ran across a nice GUI into the ioreg data, IORegistryExplorer in /Developer/Applications (in 10.2.8 Server), or /Developer/Applications/Utilities (in 10.4.11).
When I follow the chain: Service Plane = IODeviceTree/root/device-tree/cpus
I see a single entry "PowerPC,G5@0 on the PM G5 and two entries on my dual CPU G4s (PowerPC,G4@0 and PowerPC,G4@1).
Hence, my question is narrowed to is the "0" CPU the lower or the upper CPU in the PM G5 dual models?
Ed

Identifying my PowerMac

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