alfonsojon

Q: Power Mac G4 not turning on after clean shutdown, works otherwise.

My Power Mac G4 does not turn back on after a clean shutdown, but turns on after being disconnected from the power. If I shut it down cleanly (Apple menu -> Shutdown), it shuts down, but then the power button does not work. After unplugging the computer and plugging it back in, the computer is able to power on successfully. I have reset the PRAM and have reseated the PSU connector.

 

I am using Mac OS X Tiger 10.4.11, but the same problem occurs under Mac OS X Leopard 10.5.8. I don't think the operating system really matters with this type of issue though, because the power button literally will not respond until I unplug and replug the computer.

 

Any suggestions?

 

Jonathan Alfonso’s Power Mac G4

12/22/13 2:07 PM

 

 

Hardware:

 

    Hardware Overview:

 

      Machine Name: Power Mac G4

      Machine Model: PowerMac3,6

      CPU Type: PowerPC G4  (3.3)

      Number Of CPUs: 2

      CPU Speed: 1.42 GHz

      L2 Cache (per CPU): 256 KB

      L3 Cache (per CPU): 2 MB

      Memory: 2 GB

      Bus Speed: 167 MHz

      Boot ROM Version: 4.6.0f1

      Serial Number: XB3101EMN1Y

 

Network:

 

    Internal Modem:

 

      Type: PPP (PPPSerial)

      Hardware: Modem

      BSD Device Name: modem

      IPv4:

          Configuration Method: PPP

      IPv6:

          Configuration Method: Automatic

      Proxies:

          Proxy Configuration Method: Manual

          ExcludeSimpleHostnames: 0

          FTP Passive Mode: Yes

          Auto Discovery Enabled: No

 

    Built-in Ethernet:

 

      Type: Ethernet

      Hardware: Ethernet

      BSD Device Name: en0

      IPv4:

          Configuration Method: DHCP

      IPv6:

          Configuration Method: Automatic

      Proxies:

          FTP Proxy Enabled: No

          FTP Passive Mode: Yes

          Gopher Proxy Enabled: No

          HTTP Proxy Enabled: No

          HTTPS Proxy Enabled: No

          RTSP Proxy Enabled: No

          SOCKS Proxy Enabled: No

      Ethernet:

          MAC Address: 00:0a:95:9c:64:40

          Media Options:

          Media Subtype: none

 

    Built-in FireWire:

 

      Type: FireWire

      Hardware: FireWire

      BSD Device Name: fw0

      IPv4:

          Configuration Method: DHCP

      IPv6:

          Configuration Method: Automatic

      Proxies:

          Proxy Configuration Method: Manual

          ExcludeSimpleHostnames: 0

          FTP Passive Mode: Yes

          Auto Discovery Enabled: No

      Ethernet:

          MAC Address: 00:0a:95:ff:fe:9c:64:40

          Media Options: Full Duplex

          Media Subtype: autoselect

 

    AirPort:

 

      Type: AirPort

      Hardware: AirPort

      BSD Device Name: en1

      IPv4 Addresses: 192.168.1.134

      IPv4:

          Addresses: 192.168.1.134

          Configuration Method: DHCP

          Interface Name: en1

          Router: 192.168.1.1

          Subnet Masks: 255.255.255.0

      IPv6:

          Configuration Method: Automatic

      DNS:

          Domain Name: hsd1.fl.comcast.net

          Server Addresses: 192.168.1.1

      DHCP Server Responses:

          Domain Name: hsd1.fl.comcast.net

          Domain Name Servers: 192.168.1.1

          Lease Duration (seconds): 0

          DHCP Message Type: 0x05

          Routers: 192.168.1.1

          Server Identifier: 192.168.1.1

          Subnet Mask: 255.255.255.0

      Proxies:

          Proxy Configuration Method: Manual

          ExcludeSimpleHostnames: 0

          FTP Passive Mode: Yes

          Auto Discovery Enabled: No

      Ethernet:

          MAC Address: 00:0d:93:ef:b8:69

          Media Options:

          Media Subtype: autoselect

 

Software:

 

    System Software Overview:

 

      System Version: Mac OS X 10.4.11 (8S165)

      Kernel Version: Darwin 8.11.0

      Boot Volume: Macintosh HD

      Computer Name: Jonathan Alfonso’s Power Mac G4

      User Name: Jonathan Alfonso (alfonsojon)

 

ATA:

 

    ATA Bus:

 

        MAXTOR STM3500630A:

 

          Capacity: 465.76 GB

          Model: MAXTOR STM3500630A

          Revision: 3.AAE

          Serial Number: 9QG5RHPR

          Removable Media: No

          Detachable Drive: No

          BSD Name: disk0

          Protocol: ATA

          Unit Number: 0

          Socket Type: Internal

          OS9 Drivers: No

          S.M.A.R.T. status: Verified

          Volumes:

            Macintosh HD:

              Capacity: 465.64 GB

              Available: 458.51 GB

              Writable: Yes

              File System: Journaled HFS+

              BSD Name: disk0s3

              Mount Point: /

 

        ST3200822A:

 

          Capacity: 186.31 GB

          Model: ST3200822A

          Revision: 3.01

          Serial Number: 3LJ078AZ

          Removable Media: No

          Detachable Drive: No

          BSD Name: disk1

          Protocol: ATA

          Unit Number: 1

          Socket Type: Internal

          OS9 Drivers: No

          S.M.A.R.T. status: Not Supported

          Volumes:

            Time Machine:

              Capacity: 185.99 GB

              Available: 136.84 GB

              Writable: Yes

              File System: Journaled HFS+

              BSD Name: disk1s2

              Mount Point: /Volumes/Time Machine

 

    ATA Bus:

 

        PIONEER DVD-RW  DVR-105:

 

          Capacity: 2.64 GB

          Model: PIONEER DVD-RW  DVR-105

          Revision: A506

          Serial Number: BLDL034723WL

          Removable Media: Yes

          Detachable Drive: No

          BSD Name: disk2

          Protocol: ATAPI

          Unit Number: 0

          Socket Type: Internal

          OS9 Drivers: No

          S.M.A.R.T. status: Not Supported

          Volumes:

            Mac OS X Install DVD:

              Capacity: 2.64 GB

              Available: 110.27 MB

              Media Type: DVD-R

              Writable: No

              File System: HFS+

              BSD Name: disk2s2

              Mount Point: /Volumes/Mac OS X Install DVD

 

Audio (Built In):

 

    Built In Sound Card:

 

      CODEC: Texas Instruments TAS3004

      Sample Rate: 44.1 KHz

      Number of Inputs: 1

      Number of Outputs: 4

      Devices:

        Input:

          Type: Line Level Input

        Output:

          Type: Headphones

        Output:

          Type: Internal Speaker

        Output:

          Type: External Speaker

        Output:

          Type: Line Level Output

 

Diagnostics:

 

    Power On Self-Test:

 

      Last Run: 12/22/13 12:51 PM

      Result: Passed

 

Disc Burning:

 

    PIONEER DVD-RW  DVR-105:

 

      Firmware Revision: A506

      Interconnect: ATAPI

      Burn Support: Yes (Apple Shipped/Supported)

      Cache: 2000 KB

      Reads DVD: Yes

      CD-Write: -R, -RW

      DVD-Write: -R, -RW

      Burn Underrun Protection CD: Yes

      Burn Underrun Protection DVD: Yes

      Write Strategies: CD-TAO, CD-SAO, CD-Raw, DVD-DAO

      Media:

          Media Type: DVD-R

          Blank: No

          Erasable: No

          Overwritable: No

          Appendable: No

 

FireWire:

 

    FireWire Bus:

 

      Maximum Speed: Up to 800 Mb/sec

 

Graphics/Displays:

 

    ATI Radeon 9000 Pro:

 

      Chipset Model: ATY,RV250

      Type: Display

      Bus: AGP

      Slot: SLOT-1

      VRAM (Total): 64 MB

      Vendor: ATI (0x1002)

      Device ID: 0x4966

      Revision ID: 0x0000

      ROM Revision: 113-99702-122

      Displays:

        Acer AL2017:

          Resolution: 1400 x 1050 @ 60 Hz

          Depth: 32-bit Color

          Core Image: Not Supported

          Main Display: Yes

          Mirror: Off

          Online: Yes

          Quartz Extreme: Supported

          Rotation: Supported

        Display:

          Status: No display connected

 

Memory:

 

    DIMM0/J21:

 

      Size: 512 MB

      Type: DDR SDRAM

      Speed: PC2700U-25330

      Status: OK

 

    DIMM1/J22:

 

      Size: 512 MB

      Type: DDR SDRAM

      Speed: PC2700U-25330

      Status: OK

 

    DIMM2/J23:

 

      Size: 512 MB

      Type: DDR SDRAM

      Speed: PC2700U-25330

      Status: OK

 

    DIMM3/J20:

 

      Size: 512 MB

      Type: DDR SDRAM

      Speed: PC2700U-25330

      Status: OK

 

PCI Cards:

 

    usb:

 

      Type: usb

      Bus: PCI

      Slot: SLOT-5

      Vendor ID: 0x1033

      Device ID: 0x0035

      Subsystem Vendor ID: 0x17c6

      Subsystem ID: 0x0036

      Revision ID: 0x0041

 

    usb:

 

      Type: usb

      Bus: PCI

      Slot: SLOT-5

      Vendor ID: 0x1033

      Device ID: 0x0035

      Subsystem Vendor ID: 0x17c6

      Subsystem ID: 0x0036

      Revision ID: 0x0041

 

    pci17c6,e1:

 

      Bus: PCI

      Slot: SLOT-5

      Vendor ID: 0x1033

      Device ID: 0x00e0

      Subsystem Vendor ID: 0x17c6

      Subsystem ID: 0x00e1

      Revision ID: 0x0002

 

Power:

 

    System Power Settings:

 

      AC Power:

          System Sleep Timer (Minutes): 10

          Disk Sleep Timer (Minutes): 10

          Display Sleep Timer (Minutes): 10

          Sleep On Power Button: Yes

          Automatic Restart On Power Loss: Yes

          Wake On AC Change: No

          Wake On LAN: Yes

          Wake On Modem Ring: Yes

 

USB:

 

    USB Bus:

 

      Host Controller Location: Built In USB

      Host Controller Driver: AppleUSBOHCI

      PCI Device ID: 0x0035

      PCI Revision ID: 0x0043

      PCI Vendor ID: 0x1033

      Bus Number: 0x3b

 

        Microsoft® Digital Media Pro Keyboard:

 

          Version: 1.10

          Bus Power (mA): 500

          Speed: Up to 1.5 Mb/sec

          Manufacturer: Microsoft

          Product ID: 0x00b0

          Vendor ID: 0x045e

 

    USB Bus:

 

      Host Controller Location: Built In USB

      Host Controller Driver: AppleUSBOHCI

      PCI Device ID: 0x0035

      PCI Revision ID: 0x0043

      PCI Vendor ID: 0x1033

      Bus Number: 0x1b

 

        Kensington USB/PS2 Wheel Mouse:

 

          Version: 1.00

          Bus Power (mA): 500

          Speed: Up to 1.5 Mb/sec

          Manufacturer: Kensington

          Product ID: 0x102a

          Vendor ID: 0x047d

 

    USB Bus:

 

      Host Controller Location: Expansion Slot

      Host Controller Driver: AppleUSBOHCI

      PCI Device ID: 0x0035

      PCI Revision ID: 0x0041

      PCI Vendor ID: 0x1033

      Bus Number: 0x15

 

    USB Bus:

 

      Host Controller Location: Expansion Slot

      Host Controller Driver: AppleUSBOHCI

      PCI Device ID: 0x0035

      PCI Revision ID: 0x0041

      PCI Vendor ID: 0x1033

      Bus Number: 0x35

 

    USB High-Speed Bus:

 

      Host Controller Location: Expansion Slot

      Host Controller Driver: AppleUSBEHCI

      PCI Device ID: 0x00e0

      PCI Revision ID: 0x0002

      PCI Vendor ID: 0x1033

      Bus Number: 0x55

 

AirPort Card:

 

    AirPort Card Information:

 

      Wireless Card Type: AirPort Extreme

      Wireless Card Locale: USA

      Wireless Card Firmware Version: 405.1 (3.90.34.0.p18)

      Current Wireless Network: Alfonso

      Wireless Channel: 3

 

Locations:

 

    Automatic:

 

      Active Location: Yes

      Services:

        Internal Modem:

          Type: PPP

          IPv4:

              Configuration Method: PPP

          IPv6:

              Configuration Method: Automatic

          Proxies:

              Proxy Configuration Method: 2

              ExcludeSimpleHostnames: 0

              FTP Passive Mode: 1

              Auto Discovery Enabled: 0

          PPP:

              ACSP Enabled: 0

              Display Terminal Window: 0

              Redial Count: 1

              Redial Enabled: 1

              Redial Interval: 5

              Use Terminal Script: 0

              Dial On Demand: 0

              Disconnect On Fast User Switch: 1

              Disconnect On Idle: 1

              Disconnect On Idle Timer: 600

              Disconnect On Logout: 1

              Disconnect On Sleep: 1

              Idle Reminder: 0

              Idle Reminder Time: 1800

              IPCP Compression VJ: 1

              LCP Echo Enabled: 1

              LCP Echo Failure: 4

              LCP Echo Interval: 10

              Log File: /var/log/ppp.log

              Verbose Logging: 0

        Built-in Ethernet:

          Type: Ethernet

          BSD Device Name: en0

          Hardware (MAC) Address: 00:0a:95:9c:64:40

          IPv4:

              Configuration Method: DHCP

          IPv6:

              Configuration Method: Automatic

          AppleTalk:

              Configuration Method: Node

          Proxies:

              FTP Proxy Enabled: 0

              FTP Passive Mode: 1

              Gopher Proxy Enabled: 0

              HTTP Proxy Enabled: 0

              HTTPS Proxy Enabled: 0

              RTSP Proxy Enabled: 0

              SOCKS Proxy Enabled: 0

        Built-in FireWire:

          Type: FireWire

          BSD Device Name: fw0

          Hardware (MAC) Address: 00:0a:95:ff:fe:9c:64:40

          IPv4:

              Configuration Method: DHCP

          IPv6:

              Configuration Method: Automatic

          AppleTalk:

              Configuration Method: Node

          Proxies:

              Proxy Configuration Method: 2

              ExcludeSimpleHostnames: 0

              FTP Passive Mode: 1

              Auto Discovery Enabled: 0

        AirPort:

          Type: IEEE80211

          BSD Device Name: en1

          Hardware (MAC) Address: 00:0d:93:ef:b8:69

          IPv4:

              Configuration Method: DHCP

          IPv6:

              Configuration Method: Automatic

          AppleTalk:

              Configuration Method: Node

          Proxies:

              Proxy Configuration Method: 2

              ExcludeSimpleHostnames: 0

              FTP Passive Mode: 1

              Auto Discovery Enabled: 0

          IEEE80211:

              AllowNetCreation: 1

              JoinMode: Automatic

              MAC Address: 00:0d:93:ef:b8:69

 

Modems:

 

    Modem Information:

 

      Modem Model: Dash2

      Interface Type: USB

      Modulation: V.92

      SKU Name: UCJ

      Hardware Version: 1.0F

      Firmware Version: APPLE VERSION 2.6.6

      Driver: InternalUSBModem.kext (v2.6.6)

      Country: B5 (United States, Latin America)

PowerMac3,6, Mac OS X (10.4.11), Dual boot with Mac OS X Leopard

Posted on Dec 22, 2013 11:16 AM

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Q: Power Mac G4 not turning on after clean shutdown, works otherwise.

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  • Helpful answers

first Previous Page 3 of 3
  • by Glen Doggett,

    Glen Doggett Glen Doggett Dec 3, 2014 6:06 PM in response to alfonsojon
    Level 4 (1,875 points)
    Mac OS X
    Dec 3, 2014 6:06 PM in response to alfonsojon

    just wanted to chime in here, very useful thread.  I have had the very same behavior that you described with my G4 Dual 1.25GHz MDD, for a long time I could not get it to start up at all unless I briefly unplugged from the power, then it would start up.  Now, the light on the front panel goes out as soon as I removed my thumb from the button and no start up.  I have a replacement power supply that I bought a while ago, but have not yet installed it.  This gives me hope that the power supply can be replaced.  I have been thinking about moving on from the G4, but will give the power supply a try.  I just have not been into tinkering with this machine as much as I used to with my G3 Desktop.

  • by BDAqua,

    BDAqua BDAqua Dec 4, 2014 3:51 AM in response to Glen Doggett
    Level 10 (123,735 points)
    Dec 4, 2014 3:51 AM in response to Glen Doggett

    Glen, I think replacing the PSU might very well do it.

  • by Glen Doggett,

    Glen Doggett Glen Doggett Dec 4, 2014 10:20 PM in response to BDAqua
    Level 4 (1,875 points)
    Mac OS X
    Dec 4, 2014 10:20 PM in response to BDAqua

    That what I am hoping.  I bought it when my MDD first started acting up, but it did continue to work for quite a while with the unplugging trick.  I was initially thinking that replacing the battery did the trick, but it was just a coincidence that I had unplugged it to perform that.

     

    I found the G4 power supply on eBay from Austin, TX that offers a repair service, where you can send in your bad power supply and he will return it fully repaired in "better than new" condition.  He also has some refurbished power supply units available for instant purchase with instructions on how to return your bad power supply for some credit back.

     

    It may be a while before I get a chance to swap out the power supply, but I will post back here of my results.  This thread gives me some hope that the new PSU will bring it back to life.

  • by alfonsojon,

    alfonsojon alfonsojon Dec 5, 2014 9:06 PM in response to Glen Doggett
    Level 1 (5 points)
    Dec 5, 2014 9:06 PM in response to Glen Doggett

    That's the same person who fixed my PSU! The person who provides that service is a wizard, and he (or she?) made my power supply work perfectly again. My G4 lives on, for only $75. I would definitely suggest getting it repaired if you'd like to keep it. I found it worth it, personally.

     

    By the way, your case literally mirrors mine. At first, some instability, followed by refusing to boot unless flipping power switch or unplugging, then it just stopped booting altogether (unless it wanted to be nice). Definitely the power supply in your case.

  • by Glen Doggett,

    Glen Doggett Glen Doggett Dec 6, 2014 12:08 PM in response to alfonsojon
    Level 4 (1,875 points)
    Mac OS X
    Dec 6, 2014 12:08 PM in response to alfonsojon

    Well, my Saturday morning project was to swap out the PSU, and I might have had more success resisting assimilation by the Borg.  It was futile, still no start up.  Button light comes on when pressed, then goes out when I let go.  I wonder if the front panel button itself is bad, and if I can even find one of those.  I replaced the battery about a year ago, maybe I should try a new one again.  Not sure how much troubleshooting I can do, but the PSU swap was not as hard as I thought it was going to be, the drive bays are all very modular, once you get the ribbon cables out of the way and slide everything out, it goes in fairly easily.  Oh, well, not sure what to try next.  At least I have all the hard drives backed up to external drives fairly recently as I was planning to migrate from my striped RAID to a single SATA drive just before this recent problem.

  • by BDAqua,

    BDAqua BDAqua Dec 6, 2014 12:29 PM in response to Glen Doggett
    Level 10 (123,735 points)
    Dec 6, 2014 12:29 PM in response to Glen Doggett

    Durn it anyway.

     

    Could be the power button, it has some circuitry in it or attached to it.

  • by Glen Doggett,

    Glen Doggett Glen Doggett Dec 7, 2014 2:42 PM in response to alfonsojon
    Level 4 (1,875 points)
    Mac OS X
    Dec 7, 2014 2:42 PM in response to alfonsojon

    Success!  I am writing this from my trusty ol' MDD.  I wrote the eBay seller to ask for some suggestions, which were very helpful.  First thing: unplugged from wall, removed all PCI cards, removed all RAM sticks, removed PRAM battery.  Held down PSU reset switch for about 30 secs.  With the case open, plugged back in and hit the power button: very loud BEEP and red LED light comes on the mobo, with cooling fans a'spinnin', and me a'grinnin'.

     

    First time: very strange loud BEEP was not the typical Mac startup chime (I forget what they call it now).  Then I held the power button to force shut down, unplug and started re-installing items one at a time repeating the startup attempts: first the RAM, then the PCI video card, then the PCI ATA133 RAID card... I still have a USB PCI card and a SATA PCI card to put back in there, but wanted to take a break to give an update here.  Great post-sales support from this particular eBay seller.  Another observation: I had the 400W AcBel PSU with the loud Delta fans, which I replaced with SilenX fans, he suggested the 360W Samsung PSU and this one is also very quiet so far.  I haven't tried running a CPU intensive operation just yet to drive them up yet.  The refurbished PSU was in very good condition, the wiring harnesses and connectors all look brand new and it was very clean.

  • by BDAqua,

    BDAqua BDAqua Dec 7, 2014 3:18 PM in response to Glen Doggett
    Level 10 (123,735 points)
    Dec 7, 2014 3:18 PM in response to Glen Doggett

    .

  • by BDAqua,

    BDAqua BDAqua Dec 7, 2014 3:20 PM in response to Glen Doggett
    Level 10 (123,735 points)
    Dec 7, 2014 3:20 PM in response to Glen Doggett

    Wow, great to hear Glen!

  • by alfonsojon,

    alfonsojon alfonsojon Dec 7, 2014 8:45 PM in response to Glen Doggett
    Level 1 (5 points)
    Dec 7, 2014 8:45 PM in response to Glen Doggett

    That happened to me as well, the strange beep, followed by everything working fine. I wish I knew what caused it!

  • by Glen Doggett,

    Glen Doggett Glen Doggett Dec 10, 2014 9:00 PM in response to alfonsojon
    Level 4 (1,875 points)
    Mac OS X
    Dec 10, 2014 9:00 PM in response to alfonsojon

    alfonsojon wrote:

    ...By the way, your case literally mirrors mine...

    of course it does, it is a Mirrored-Drive-Doors G4 after all. 

  • by alfonsojon,

    alfonsojon alfonsojon Dec 11, 2014 7:57 PM in response to Glen Doggett
    Level 1 (5 points)
    Dec 11, 2014 7:57 PM in response to Glen Doggett

    Very "punny".

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