Powermac G5 dual 2.5 won't switch on

my powermac G5 dual 2.5 osx 10.4.11
it was working fine ,I left it switched on while i went for food came back to it a few hours later and it had switched off and it will not power up. i have tried new mains lead and alternative power socket
but alas no power getting to it at all ...help any ideas
thanks
Message was edited by: John Williams17
Message was edited by: John Williams17

Remove the metal side panel. When you press the power button, do you see anything happen? Does the power light flash at all? Do you see a red light on the logic board?
Matt

Similar Messages

  • PowerMac G4 Dual 1.25Ghz won't let me install updates to Leopard

    Hi there.. I just bought a PowerMac G4 Dual 1.25Ghz and for some reason, I can't install Leopard through the DVD drive. I get an error saying something about <Base System> and when I did install it leopard by making the powermac a firewire drive, now I can't do any updates. I get a message that the file is corrupt and contact the software vendor. I tried doing a Repair Permission, but it wont do it and keeps going and going.... Has anyone had any issue like this?

    First, did you install Leopard using a retail version installer. Using an installer from another Mac model won't work.
    Second, is this the update file you tried to use? http://support.apple.com/downloads/MacOS_X_10_5_8_ComboUpdate
    It's best to download the update file & install off line, rather than use the auto update feature. Repair permissions before & after installing the update.
     Cheers, Tom

  • Powermac G5 dual 2.5GHz won't boot

    Hi,
    I've recently started having issues with my dual 2.5GHz G5 Powermac. When I switch it on I can hear the drives start up and data being read from them. But there's never any chime and the screen stays black. The drives stay quiet (spinning but no data being read). After a minute or two the fans ramp up to full speed.
    If I leave it off for a while (eg. overnight) it resolves itself somehow and boots up without any issues. Once it's booted up there are no issues at all and it will run fine for weeks and days, until it needs to be rebooted again. I just put it to sleep when I'm not using it and it wakes up fine.
    I've tried the following without any success:
    - unplugging all peripherals (usb + firewire etc)
    - reseating the ram
    - swapping out the ram
    - trying to boot into open firmware (it won't get that far)
    - resetting the pmu with the button on the motherboard
    - installed the latest updates to os x
    - reseated the graphics card
    - replaced the battery on the motherboard with a brand new one
    This started roundabout the time I upgraded to 10.5.5 though that could be a coincidence. I also cleaned dust from the inside of the machine at that time as well (including off the graphics card fan and heatsink which was getting clogged up). So, that may have caused it. But again it could just be a coincidence.
    Does anyone have any suggestions? All fans and both fans spin up, so I don't think it's the PSU, but I could be wrong. My only thought at the moment is a possible problem with one of the drives. So, I could try installing to a firewire drive and booting from that, but given that I can't even get into openfirmare, I'm not confident in that working. Similarly I don't have much hope of it booting from CD.
    Any suggestions or help would be very much appreciated
    Phil

    Hi Phil Brayshaw-
    What does the little white power light do? This should be helpful: About the Power Mac G5 (Late 2005) diagnostic LEDs
    Although it sounds to me like you have tried most of the troubleshooting steps, this document is a good overall reference to address this particular problem: Power Mac G5: What to do if you see black, white, or no video at start up
    Have you tried another monitor and/or double-checked your cable and its connections? If everything else is working as expected that would certainly be a major suspect.
    Luck-
    -DP

  • PowerMac G5 Dual 2.5 won't shut down

    I recently installed leopard and when I try to shut down it just hangs...everything is gone (ie.Desktop, menubar) except for the desktop image and a small windmill thing(ie: some process animation)
    There is nothing showing up with HW test.Also erased and reinstalled leopard with no third party devices, software, etc... Any idea where to start.
    Anyone else experience this?

    Yes it is an Erase and install, and I've actually done this a few times for measure, zeroing the disk each time...I also allowed the OSX disk to be checked prior.
    I have repaired permissions...
    Theory 1:
    I think it is related to .mac...I have old machine names in the shared section of finder that won't go away. I believe these machines were somehow uploaded to the .mac server and even though I have deauthorized all my .computers and reset .mac, etc...they still show up. .Mac support has been no help so far. I have posted about this specific issue in .mac and leopard forums, but have not been able to find a solution.
    I don't feel like going into complete detail on this issue, but:
    .Mac doesn't permit access to the files I need to erase, nor have I been successful in getting them to respond to my request to reset this data as it is clearly on their servers with no end user control...they also wouldn't transfer my account to a new trial .mac account(which they do for some) because I used a retail box to register.(I have been a user for years though
    But I am not sure this issue is what is causing the shutdown problem, sorry for the vent session...
    Theory 2:
    There is something else going on...What logs could I look at to help narrow it down?

  • PowerMac G5 Dual 2.5 - Only Boots with Side Cover and Fan Guard OFF!!

    I have the strangest problem with my PowerMac G5 Dual 2.5.  This has been my Pro Tools rig forEVER.
    At some point early last year, my Mac wouldn't boot.  It would not see the hard drive, and would show that dreaded alternating icon in the middle of the screen indicating as much.  I tried resetting, tried power off/on, tried resetting PRAM.  Nothing.  I took the cover off, and fan guard off to get at the hard drive.  Verified the data and power cable were seated in hard drive.  Cover still off, I booted up the system.  Voila!!!  Booted right up like nothing was ever wrong.  I put the cover back on, and went about my business, passing it off as a one-off power glitch (the power in my house ***** rocks).  Next time I rebooted the Mac, the exact same thing happened. 
    I can repeat this at will.  If I leave the cover on, the system will not ever, ever boot.  The minute I take the cover and fan guard off, causing the fans to spin at max speed when turned on, the system boots without issue.  So, I reset PRAM and PMU.  I even tried replacing that green/white cylindrical battery on the motherboard.  Reseated power/data cable on hard drive.  ****, I even tried a different hard drive and memory (explained below).  No change. 
    Since then, I have relegated this system to the emergency backup system, and procured Dual 2.7 G5 PowerMac.  I transferred the pro tools cards, hard drive (without formatting it) and memory (8 GB) to this new 2.7, and have not had a single, solitary issue with it.  So, I know it's not the hard drive, memory, OS install, or Pro Tools cards.
    What in the name of the Apple Gods could be causing this issue?  Any ideas at all?

    Hi Chris,
    Good info & work so far, but indeed strange, only thing I can think of is something to do with that little switch for the fan cover... near the bottom as I recall, but it may be some kind of short in it's circuit.

  • Fans only run slow, not fast on PowerMac G5 Dual 2.3

    I've noticed recently that some occasional kernal panics seem related to the fact that under a heavy load my processor fans are not revving up. This is on my olde PowerMac Dual 2.3 from some time ago. We have the same model at one of our workstations at work and the fans kick in and out as we render, so I know what a healthy PowerMac G5 Dual 2.3 should sound like.
    I've checked inside the case... the two fans in front of the processors are running, just really slow. The same with the two rear fans. I can't get them to spin up faster when doing anything processor intensive. Seems like it's been like this for a while, though it was definitely not always like this as I recall a few mornings where I found it in jet engine mode.
    The white tab on the clear plastic internal cover is seated correctly... I don't know where any other sensors might be.
    I ran the Apple Hardware Test from my original gray install disc... upon booting into the test I was surprised to hear the fans revving up to full speed. On the first run the computer had no problems. After a reboot into the OS and then another reboot back into the test disc, the full speed fans just locked up the OS choice screen and I couldn't get past it.
    I see plenty of posts here regarding loud, fast fans that won't spin down... but I don't find too many with this problem.
    Can anyone shed any light on this?
    Thanks,
    Dave

    I run BOINC on my Power G5 and it places a full load on the processors for as long as the application is up. I find the fans are not very loud if you have done a proper dust cleaning of the computer. This includes cleaning out the power supply that's located in the very bottom of the case. If you think you have a problem I suggest you look into Istat Pro from http://bjango.com/. This will allow you to look at the fan speed to determine if you have a problem or if things are running normal. Under full load, my fan data looks something like this.
    Drive bay 1000 rpm
    Backside 1100 rpm
    CPU A intake Around 800 rpm
    CPU B intake Same as CPU A
    CPU A exhaust About 30 RPMs higer that CPU A intake
    CPU B exhaust Same as CPU A exaust
    Slots Intake 1560 RPM
    The only fans that seem to change much based on load are the CPU fans and with no load they may drop to about 500 RPM. Under full load on a warm day and the system in need of having the dust clean out I have seen the fans go up to 950 RPM. The fans that made the most noise were the Power Supply fans when I missed blowing out the power supply for a while.
    The G5 processor is able to run at temperatures up to the boiling point of water but it truth I have never seen mine get above 164 degrees fahrenheit.
    If you have just done a good cleaning of the system, it's possible you have just returned the system to normal operation and extended it's life instead of having a problem.

  • Dual 867 MDD won't sleep after memory upgrade

    Since yesterday my PowerMac G4 Dual 867 MDD has become insomniac. What changed since yesterday is that I installed an additional 512MB of RAM. So far as memory is concerned, there's the factory-installed 512 Infineon module; a second 512MB Kingston module (installed about a couple of years ago, and has been working fine ever since); and a third 512MB Kingston module (the one I installed yesterday) for a total of 1.5GB.
    I am aware that sleeping issues can arise for all sorts of reasons (inc. USB peripherals) but it is pretty obvious that in my case the problem is caused by the memory upgrade.
    The symptoms: Once I click Sleep on the Apple menu, I can hear the sound of the hard disks spinning down, but the rest of the box remains fully powered. The screen freezes and the computer has to be manually switched off, as the mouse cursor disappears from the screen and the keyboard becomes completely unresponsive.
    So far I have tried the following: I have reset the PRAM (no luck there), and have tried switching memory modules to different sockets (basically, the single remaining free slot). I apologise in advance if that second troubleshooting routine might portray me as an ignoramus; I have a good understanding of things but cannot claim to be an expert.
    I am a extremely frequent user of the sleep mode, and this issue has taken away from me all the pleasure that comes with a coveted (and long overdue) memory upgrade. I would deeply appreciate any help in resolving this.
    Many thanks

    Dear Dave,
    Many thanks for your prompt response. I ran Rember (Amount of memory to test: "All". All other boxes unchecked - I was running other apps at the time). I cannot understand the results from the log, but I didn't get any feedback at the end of the testing. I attach the contents of the log below:
    Memtest version 4.13 (32-bit)
    Copyright (C) 2004 Charles Cazabon
    Copyright (C) 2004, 2005 Tony Scaminaci (Macintosh port)
    Licensed under the GNU General Public License version 2 only
    MacOS X (Darwin) running in multiuser mode
    POSIX version 200112
    Pagesize is 4096
    Requested memory: 18MB (19693568 bytes)
    Available memory: 18MB (19693568 bytes)
    Allocated memory: 18MB (19693568 bytes) at local address 0x02008000
    Attempting memory lock... locked successfully
    Creating test buffers...
    Buffer A: 9MB (9846784 bytes) at local address 0x02008000
    Buffer B: 9MB (9846784 bytes) at local address 0x0296c000
    Running 1 test sequence...
    Test sequence 1 of 1:
    Stuck Address : ok
    Random Value : \ ok
    Compare XOR :  ok
    Compare SUB :  ok
    Compare MUL :  ok
    Compare DIV :  ok
    Compare OR :  ok
    Compare AND :  ok
    Sequential Increment:  ok
    Solid Bits : setting 1 of 64ok
    Block Sequential : setting 1 of 256testing 224 of 256setting 225 of 256testing 225 of 256setting 226 of 256testing 226 of 256setting 227 of 256testing 227 of 256setting 228 of 256testing 228 of 256setting 229 of 256testing 229 of 256setting 230 of 256testing 230 of 256setting 231 of 256g 238 of 256setting 239 of 256testing 239 of 256setting 240 of 256testing 240 of 256setting 241 of 256testing 241 of 256setting 242 of 256testing 242 of 256setting 243 of 256testing 243 of 256setting 244 of 256testing 244 of 256setting 245 of 256testing 245 of 256setting 246 of 256testing 246 of 256setting 247 of 256testing 247 of 256setting 248 of 256testing 248 of 256setting 249 of 256testing 249 of 256setting 250 of 256ok
    Checkerboard : setting 1 of 64ok
    Bit Spread : ok
    Bit Flip : setting 1 of 256ok
    Walking Ones : setting 1 of 64ok
    Walking Zeroes : setting 1 of 64All tests passed.
    Thanks again,
    Alex

  • Powermac G5 Dual Core 2.0 GHZ or Macbook Pro Dual Core 2.0 GHZ

    I have a Macbook Pro Dual Core 2.0 GHZ that currently has 1 GB of RAM in it. For the most part it runs fine, but I do come into problems with it sometimes while I'm doing video editing which is my main usage for my computer. I currently run Final Cut Studio 2. Would it be worth it to sell this computer and get a Powermac G5 Dual Core 2.0 GHZ or 2.3 GHZ and upgrade the RAM to 8 GB to help my video editing run smoother? The reason why I am considering this is because I would like a computer that would work better with my video editing at a cost that I can afford. I also would like to have a firewire 800 port for my external hard drives. I rarely use my internal hard drive, so that is no factor in my decision. Currently I cannot afford a new Mac Pro, but will be buying one in about a year. I'm just trying to decide if this would be a good switch for right now. Thanks for your help.
    Message was edited by: hb8788
    Message was edited by: hb8788

    Although I don't own a Mac Pro, rumor has it that they run video chores significantly more efficiently than do the last generation G5's. I bought my 2.3 GHz, w/the 7800 card, for $600, last November on eBay. The case wasn't cosmetically perfect (a rather nasty looking crimp on the front handle) but it has performed well running my video (EyeTV and recording) and academic (I teach math & Mathematica) needs. I picked-up extra memory (it now has 6 Gigs) pretty cheap (around $75, IIRC), from Kingston. I also took the advice of many here and got a WD 640GB HD that made a significant difference in both boot-time and opening applications. However, if you're going to get a new Mac Pro in a year, it's almost like throwing money away - the G5 will probably have its' depreciation rate decrease once the software vendors no longer continue supporting pre-Intel machines. That being said, my G5 is more than sufficient handling my present version of Mathematica - I don't think that paying $3000, or whatever it takes to get a new Mac Pro, would balance the marginal increase of utility I would get using Mathematica. If I were a video guru, I might feel differently. I thought I could give you a definitive yes, buy the G5, because I really love mine. Unless something happens, I plan on having it for at least a few years. At about $250/year, if one figures that I'll have owned it for a total of 3 years, that's less than 70¢/day. But I also value the opinions of many of the posters who have commented on the new machine's speed, compared to the 2.5 GHz Quad, say.

  • PowerMac G4 Dual Optical - will not boot & no display

    PowerMac G4 Dual Optical - Model Number 8570 EMC No 1914 : 1.25GHz DP/256M DDR@ 333/80G/Combo/MDM Operating system OS X 1st or 2nd release
    This machine was used daily until February 2007. From then till the last week of September 2009 the machine was in storage and was not powered up
    When tried for the first time in over 2 years, the machine powered up and the main switch on the front of the computer came on but no audible chime was heard. The machine will not boot & no display (apart from grey screen visible).
    The 3.6 v lithium battery was replaced. PRAM & NVRAM has been reset via the keyboard commands : CommandOption+PR keys. After this, the chimes would work on power up but nothing is visible on screen. Also although the keyboard is functional evidenced by the success of the PRAM reset commands, the num & caps lock lights will not work nor will the CD drive "arrow" eject button. I have also removed the battery, reset the PMU on the logic board, and left the machine for over 30 minutes before powering up again:
    Please advise if there is anything else I can try before I take it to a dealer for repair ?
    Many thanks
    Mike

    Try a PMU reset.
    DALE

  • I've been texting my friend with iMessage with wifi on and all of a sudden it changed to text message and won't let me send messages. My wifi is still on and working but it won't switch back to iMessage. Please help

    I've been texting my friend with iMessage with wifi on and all of a sudden it changed to text message and won't let me send messages. My wifi is still on and working but it won't switch back to iMessage. Please help

    What I recommend you try doing first is to turn iMessage off then back on.  If that doesn't work, make sure that your Apple ID and password are correct.  If everything seems correct and you still can't send out messages using iMessage instead of text message, I think you should either try calling AppleCare at 1-800-MY-IPHONE (1-800-694-7466) and/or scheduling an appointment at the Genius Bar at an Apple Store (that is, if there's one close to you).
    Hope this helps!

  • My classic video ipod won't switch back to regular video mode after using it on an elliptical. The port still allows me to charge and works on the elliptical and treadmill but it will no longer change modes to allow me to watch my shows on the ipod screen

    My classic video ipod won't switch back to regular video mode after using it on an elliptical. The port still allows me to charge and works on the elliptical and treadmill but it will no longer change modes to allow me to watch my shows on the ipod screen

    From the iPod's Main Menu choose Videos -> Settings and make sure TV Out is set to Off.
    Otherwise, try a hard reset as well.  To do this, press and hold both the Select (Center) and Menu buttons together long enough for the Apple logo to appear.
    B-rock

  • My safari won't switch off - what can i do?

    i opened a page which should have allowed me to download a mock TOCFL exam (that's the standardized chinese exam in taiwan), but instead i just got a page of gibberish and since then skype won't let me close it, also while closing tabs there's no longer an x to click, instead i have to right click and then close it that way. anyone know what's going on here? also since safari won't switch off, i have no way of trying to deinstall and then reinstall it...any suggestions?

    Select  ▹ Force Quit... from the menu bar, then select Safari and press return. Do the same with Skype.
    Run Software Update and install all available updates.
    Reinstalling system components is rarely the solution to any problem, and certainly not to this one.

  • My iMac20 powers off by itself and won't switch back on

    I'm sorry this is a bit of a saga but I'm at the end of my tether with so will be really grateful if anyone has any experience of this issue and can give me some help?
    The problem started in May when, after an hour or so of use, my iMac 20 suddenly started to turn itself off and wouldn't turn back on again until the following day. This happened around half a dozen times so I took the machine to the local Apple store and was told that it was probably the thermal trip and if I removed the power cord and left it disconnected for a while, it would power up again more quickly. That evening when it cut out, I followed the advice I was given and removed the power cord from the back of the machine but it made no difference and the machine would not restart until the following morning. Back to the Apple store I went and this time they took the machine in to the workshop; a day or two later I was told that they had cleaned out the fans and tweaked some software and had run it successfully on the bench for several hours with no problem. After paying £49, I collected the machine, took it home, ran it for an hour or so and off it went again and as before, refused to turn on. Back again to the Apple store; "Had I reloaded the operating system?" Well no, because I hadn't been told that I needed to. And anyway why would I... surely the thermal cut-out was a hardware issue? The response was that the problem was definitely software-based and nothing to do with overheating or a faulty power supply unit (which was/is my favourite candidate for villain of the piece). So off home I went, backed up my stuff and ran Disc One successfully and started running Disc Two. After about 20 minutes into Disc Two the machine did its usual trick and powered off, and I went looking for a bottle of wine.
    Back to the Apple store. The guy controlling the 'guest list' for the Genius Bar said that if I wanted to return the machine to the workshop that day it would be considered a new incident and there would be a further charge for any repair work. However, if I made a fresh appointment (for a couple of days later) then the work would be done as part of the previous 'repair'. Somebody at Apple really needs to look at the way the stores deal with dissatisfied customers.
    So, Saturday the 11th of July arrives and I head back to the Genius Bar for my free appointment. I explained to a very helpful guy that this is my fifth visit and I would like to get to the bottom of the problem. He referred to the tech person who dealt with the original workshop repair and she came out to explain that the issue is caused by 'something' lurking in my Library folder and that if I wipe my hard drive and re-install the OS from scratch but without the Library folder, the problem should be solved.
    I spent Sunday wiping the hard drive, running the OS discs and then reinstating my iTunes, photos etc and waiting for the machine to turn itself off - but it didn't! I left my external hard drive returning all my files and documents overnight and when I woke up on Monday, everything was still up and running... bliss!
    Then, this afternoon, after downing loading a music file in flac format, I found that it wouldn't go into iTunes without the help of Fluke software. I downloaded the Fluke stuff and then as I dragged the flac file into iTunes - boof! The machine went off and won't switch back on again.
    So finally... has anyone seen any similar behaviour with their iMac and was it caused by software or hardware? And if it is software that's causing the problem, why can't I switch the machine on again immediately?
    ,

    Amsys plc, the company Apple uses for off-site repairs returned my iMac20 today and the accompanying advice note states that the fault was resolved by replacing the power supply unit. I am really grateful to Apple for finally getting to the bottom of the problem, particularly as the repair was done free of charge, although I had already paid £49 for a useless workshop investigation at the Kingston store. The service given by Amsys was exemplary... the collection and return of the machine was carried out at the times promised and whenever I contacted the company by phone, each person I spoke to seemed to have knowledge of the repair without having to refer to the case notes (and none of the 'press 1 for service, 2 for sales...' rubbish).
    So once again BDAqua, many thanks for suggesting I call Apple... it's just a shame that the staff of the Kingston store refused to accept what was obvious to me.

  • I've broke my phone, it won't switch on, is there any way to recover the data from it?

    My phone has split up the side after I dropped it down some concrete stairs and now it won't switch on, so I need to know if there is anyway to recover the data from it, such as phone numbers, photo's etc. Anyone had this problem?
    I've tried plugging it in to the computer but it doesn't do anything, and tried plugging it in to the wall to see if that will switch it on, but nothing.
    Any help gratefully received! Steve

    If it will not turn on - you have zero chance of getting anything off the phone.

  • Powermac G5 dual 2.5 issues!

    I purchased a pre-owned Powermac G5 Dual 2.5 ghz. It has 4gb ram and is running Mac OSX 10.5.8. Very shortly after I purchased the computer I had a crash and couldn't get it to start back up. I tried to re-install software and it would go part of the way thru and crash on the install every time. I started the machine in target mode and hooked it to my old trusty G4. I was able to install the software that way with no issues. I then went back to the G5 and tried installing updates, but part of the way thru the updates it would crash saying the update was possibly corrupt, ( these were straight from apple so I doubt that ) thus leaving my g5 unable to restart because of the partial software update. I did the target mode again, this time installing all of the updates using my G4. After all was said and done, I was back to where i had started when i bought it. I now keep to be getting freeze issue with the machine. I can be online using safari and all of a sudden I get the spinning color wheel. When this happens I can not even force quit the app, it will just sit there spinning away. Tonight i tried opening firefox and it started up and ran for a few minutes before freezing also. A few days ago I had tried to burn a dvd using toast, and that app also froze up and would not let me force quit. I have not had any issues like this from my G4, and after trying resetting the SMU, PRAM and many many hard restarts, I am no closer to knowing what the issue could be. Any help or ideas for me to try would be much appreciated.  Thanks, Mike

    Have you blown the dust out of it since you got it?
    Possibly a temperature problem or bad RAM/RAM slots.
    Get Temperature Monitor to see if it's heat related...
    http://www.macupdate.com/info.php/id/12381/temperature-monitor
    iStat Menus...
    http://bjango.com/mac/istatmenus/
    And/or iStat Pro...
    http://www.islayer.com/apps/istatpro/
    If you have any temps in the 70°C/160°F range, that's likely it.
    The Memory test can really only be trusted if it finds a problem, not if it doesn't find a problem.
    Memtest OS X...
    http://www.memtestosx.org/joomla/index.php
    Rember is a freeware GUI for the memtest ...
    http://tech.kateva.org/2005/10/rember-freeware-memory-test-utility.html

Maybe you are looking for