PowerMac G5 Dual 2.5 No boot

Hello Everyone,
I have Recently got a Dual 2.5 G5. Now when I try to boot it. The light on the front only comes on when you press the power button. Now its been a while since iv worked on these machines. I cant see any clear water damage but there very well could be some. The machine powers up. Does the top fans then the bottom and thats it. It will sit for about 15 min before the fans start to speed up. Now it does not have an HD, RAM or video card but If I am correct, it should at least give me some sort of a boot/error tone. I get no tones at all. I looked up the specs and the RAM and the video card from my dual 2 should be fine but when I place them in, I get the same thing. I reset the PMU, I pulled the CMOS batt and still nothing. Any ideas?

Them LCS ( liquid cooling system) units are problematic. I recently scrapped one because of the leak problem, When you do see the leak, it will most likely be too late. There are lots of owners that have the same startup issues related to this. Some lucky owners brought their units in even after the warranty period long expired and Apple repaired them FREE, and some even got a new intel Mac Pro as a replacement as there were no parts left to repair the older units.The symptoms are all the same, fans going wild, grey screen, kernel panics, random freezes. It's the beginning of the end. Good luck

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

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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.
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Hi Chris,
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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
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Many thanks
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Try a PMU reset.
DALE

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Hi Kompefx, and a warm welcome to the forums!
How Much RAM do you have, can you pull 2 stick & try it?
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Since two weeks I experience freezes at different up-and-runnng time. It could happen at grey startup screen (after a while fan goes wild), could be after some minutes working in a full booted user environment.
I run AHT several times, no error reported. When I took out all RAM except for Apple RAM, it still freezes at some time.
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My PowerMac G5 Dual 2.0 also has this problem.
It all started one sad afternoon a month or so ago. I noticed that my computer was on and the fans were on full speed. As soon as I moved the mouse to shut it down, I got the wheel of death!
I had no choice but to do a force shutdown.
The next day, I turn my computer on and it just stayed on the gray screen with the dark gray apple, and no spinning thingy.
So once again, I had to force shutdown.
Pressing the 'Option' key did gave me the screen where one can select where to boot from; the main HD, booting CD, etc. but none of the worked.
When I chose to boot from my internal HD or from the restore CD it would just get stuck on the gray screen with the apple logo.
I pressed the PMU button = no change
I did a PRAM reset = it brought my G5 to life but then a few minutes later it froze and history repeated itself.
Did a PRAM reset again and this time didn't work.
Tried booting from my PowerBook G4 HD via firewire = frozen gray screen
When I pressed the 'T', i get the FireWire logo and I'm able to boot my G5's HD using my PowerBook G4. But when I put my G4 on firewire mode and try to boot my G5 by selecting the OS of the G4, I still get the frozen screen, so the problem is not with the HD.
One time I was able to boot my G5 from the 'Restoration CD' and I used the Utilities to Fix permisions, and repair the HD but still the computer would freeze and same old story.
Since I got this problem, It has work normal only 3 occasions but no longer than an hour until the fans go crazy and freezes.
I tried different memory sticks and no improvement.
My AppleCare expired on May, and my G5 went down 2 or 3 months after that.
This feels part of an strategy called "Get a(nother) Mac". Where comps are design to last just a little after AppleCare expires and then BOOM! no choice but to spend some serious cash on fixing it or use that money plus more to get one of the resent mac which have had some changes since one bought the mac that just went to apple heaven.
Anyways, I feel that the problem will be solved by replacing the two processors, heatsinks, or whatever they called it.
I took apart my G5 today and I'm not sure but it seems that the heatsinks might use some kind of gas to cools the CPUs or Chips and I think that gas is over.
Has anyone swap the heatsink units and noticed any difference?
Here's of the heatsink for the PPC G5 2.0
http://img186.imageshack.us/img186/2642/g5heatsinksw5.jpg

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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,
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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.

Powermac G5 Dual 2.0 Ghz machines made in 2004 ship with Tiger or Panther?

Reason I'm asking is I bought this mac used. The dude forgot his password, the machine freezes up intermitently, so I think I should reload the OS. However he forgot to give me the OS X system disks that come with it. He's been avoiding my phone calls about this. So I'd love any help anyone can give me on this system freeze up and password issue. Thanks!
Here are the specs:
Machine Name: Power Mac G5
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: 1.5 GB
Bus Speed: 1 GHz
Boot ROM Version: 5.1.8f7
150 gig HDD
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Other than having to buy Tiger OS, there is no reason not to. I have Tiger on even older 2003 G4 MDD and Blue G3 (Yosemite) still running 10.4.9. Well, I don't use the G3.... but I 'could' - and run okay for basic stuff.
The only things to consider is that you have updated your software and such to run on Tiger (can't see that being an issue 2 yrs after Tiger shipped, unlike Apr 2005 when it was a 'learning curve' for all of us).
I would backup, and then use Tiger DVD to re-format (Partition) and install, and then import or merge my files afterwards. Anyone with G5 from prior to Apr 2005 really is more likely and should upgrade to Tiger than stay with the original OS.

I cannot install Leopard 10.5 onto my PowerMac G5 (dual processor)

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Hmmm, with the Leopard Install Disc in use Disk Utility to Verify the DVD, does that come out OK?
If so ...
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
   2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
      *Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
   3. Click the Erase tab.
   4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
   5. Select your Mac OS X volume.
   6. Highlight the drive, select Partition Tab, then Format type... MacOS Extended Journalled, select the Security Options button, choose Zero Out Data, Erase... after completion hopefully you'll be able to install.

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 [Error Code Help]

[IMG]http://img251.imageshack.us/img251/8568/powermacg4mdd300x363.jpg[/IMG]
I recently got rid of my old PowerMac G4 Dual Optical.
It was a solid machine, never broke down, as I constantly maintained it for about 8 years, I only upgraded due to Intel (and some new apps I wanted to use).
Fortunately, I found a good home for it, and I told the guy, what to do to maintain it, and to call me if he has an issue.
Anyways, low and behold he now has an issue, in the form of a Error Code when he turns the machine on (See below).
I've spoke to him over the phone, and walked him through resetting the Pram, and reinstalling the disks (start up and boot from the disk, while holding down cmd+C), but no joy.
He said: "I managed to get onto the desktop again today but again it crashed with in a minute of being on it. It came up with the error message unable to find driver so I copied it down"
Personally I think the internal Hard Drive has gone and needs to be replaced, but I could be wrong.
If somebody can somebody please shed some light on this, as I'd be very grateful.
Cheers,
K.
panic(cpu 0 caller 0x00373A34): “Unable to find driver for this platform: \”PowerMac3,6\”.\n”@/SourceCache/xnu/xnu-1228.15.4/iokit/kernel/IOPlatformExper t.cpp:1407
Latest stack backtrace fo cpu 0:
Backtrace:
0x009CC88 0x0009D63C 0x00029DA0 0x00373A34 0x00348ED8 0x0034A02C 0x0034BEDC 0x0034AFFC 0x000B1DD4
Proceeding back via exception chain:
Exception state (sv=0xc8ca00)
PC=0x00000000; MSR=0x0000D030; DAR 0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
BSD process name corresponding to current thread: Unknown
Mac OS version:
Not yet set
Kernel version
Dawrwin Kernel Version 9.8.0: Wed Jul 15 16:57:01 PDT 2—9; root:xnu-1228.15.4~1/RELEASE_PPC
System uptime in nanoseconds: 18699638756
No debugger configured – dumping debug information
MSR=00001030
Latest stack backtrace for cpu 0:
Backtrace:
0x0009CC88 0x0009D7A8 0x00029DA0 0x00373A34 0x00348ED8 0x0034A02C 0x0034BEDC 0x0034AFFC 0x00B1DD4
Proceeding back via exception chain:
exception state (sv=0xc8ca00)
PC=0x00000000; MSR=0x0000D030; DAR 0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
BSD process name corresponding to current thread:Unknown
panic: We are hanging here…

Try a PMU reset.
DALE

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

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

PowerMac G5 dual core resolution

I'm having problems reaching the native resolution on a 26" Dell W2607C LCD-TV.
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been a bit foolish here...
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PowerMac G5 Dual 2.5 Vs iMac Core2Duo 2.16

Just want some help here really.
I would love to upgrade to a Mac Pro but it's not really realistic.
I have at the moment a PowerMac G5 Dual 2.5. I only use it really for Logic Pro 7 and Aperture.
I was looking at maybe getting an iMac 24inch one, to slim things down in my small home studio. Is it going to be faster than my G5, the same or slower or what??
Thanks in advance
Points awarded to the most helpful!

found this
http://www.macworld.com/2006/09/firstlooks/imac233bench/index.php
and this
http://www.macworld.com/2006/09/reviews/24inchimac/index.php
I think it will depend on wether your favorite applications are universal or not.

Which is better for Pro Tools LE-PowerMac G5 Dual-Core 2.3Ghz or Dual 2.7Gh

I'm starting a small recording studio and I own a PowerMac G5 Dual-Core 2.3Ghz with 2GB of RAM and a PowerMac G5 Dual 2.7Ghz with 2GB of RAM. I need to keep one of them to run Pro Tools LE. Both G5's have the same hard drives and similar graphics cards..Does anyone know which would do a better job and if so why ??? Thanks..

Hi popped!
You have posted your inquiry, in the Discussions Forum, that is intended for discourse about the use of Apple Discussions.
You will get more attention to your issue, if you select a more appropriate location from this page Discussions Forum Home.
Perhaps posting in one of the Power Mac G4 & G5 Forums, would generate more interest.
Good Luck!
ali b

PowerMac G5 Dual 2.5 No boot

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