Upgrading RAM on Dual 2.5 Ghz PowerMac

Ok, I just bought 8 1gb sticks of Hypervelocity RAM from macramdirect.com for my Dual 2.5 Ghz PowerMac. It already had 2.5gb of RAM sticks in there, so I was going to replace the 2.5 and stick it in 2 other G5's at the place I work at, and just run the 8 1gb sticks in my G5, that I use for video editing. When I stick the 8 1gb sticks in there, I boot it up and the fans kick on and the h/d spins, but nothing happens on the monitor and the power light flashes 2 times like every 5 seconds. So I basically started eliminating problems by starting with only 2 of the 8 sticks in the 1st dual slots. It still didn't fully boot up, give me the chime, and the power light flashed 2 times every 5 seconds. So I installed 2 of the 256mb chips in the 1st layer of the DIMM slots, and 2 of the 1gb sticks in the 2nd layer of the DIMM slots. It boots up completely, I hear the chime. I thought that this G5 could max out at 8gb, but is this totally true. Or can it only max out at probably 7gb, 1 gb short of the supposedly max given by apple??

Before talking to MacRamDirect, boot into Open Firmware (hold down four keys on startup/restart, doesn't even need to be a cold start):
CMD + OPT + O + F
then type three commands -
reset-nvram
set-defaults
reset-all
You may want or need to use the OPTION key to select your boot drive and reset it in Startup Disk c.p.
G5s don't always see or recognize the new RAM configuration; sometimes it only "shows up" when loading programs that require more RAM.
You should also boot from the Apple Hardware Test and run that as well. If all is working and showing up, I would then run Memtest overnight.
Why nvram or the device tree isn't being updated - no idea - but I have seen this happen and reset-nvram did the trick (also works when swapping hard drives and not showing, though not if you are ADDING a drive).

Similar Messages

After processor upgrade to sonnett dual 1.8 ghz system crashes

Hi all,
My system keeps crashin when using the dock or switchin software programs usual suspects are photoshop to illustrator to itunes. The screen freezes and i get no mouse movement or keyboard functionality and i have to force the restart.. only seems to be happening since the upgrade of my processor.. also upgraded RAM and added a expansion card for my 400 gb hard drive..any ideas?
happens at least twice daily...

Hello! You have committed a sin by doing multiple upgrades at once. If you upgrade ram, processor and drives at the same time without running each upgrade to make sure it's stable then it's difficult to troubleshoot but ram is agreeable the most likely culprit. Tom

Can i upgrade to a dual 1.25 ghz from a single 1 ghz?

hi i have a MDD G4 single 1ghz processor fw 800 mac that i was considering selling because it cant boot to os9 but now im considering keeping it because of its upgrade potential.
what upgrades are available to me?
thanks

Since that board was available in SP 1 GHz, DP 1.25 GHz and DP 1.42 GHz, the short answer is yes. Many here suggest just going up to the DP 1.25 GHz for the most cost-effective upgrade. The difference between the DP 1.25 and DP 1.42 is minimal - 10-13%. From posts I have seen, going from a SP 1.25 to a DP 1.25 will result in about a 40% boost so your difference should be even a little greater. Check the ebay link below for DP listings. That's where I bought mine.
http://computers.search.ebay.com/G4-MDDApple-Macintosh-ComputersW0QQbsZSearchQQcatrefZC6QQcoactionZcompareQQcoentrypageZsearchQQcopagenumZ1QQfgt pZQQfposZ25427QQfromZR2QQfsooZ2QQfsopZ2QQftrtZ1QQftrvZ1QQlopgZQQsabfmtsZ1QQsacat Z4599QQsadisZ200QQsaobfmtsZinsifQQsaprchiZQQsaprcloZQQsargnZQ2d1QQsaslcZ2QQsbrft ogZ1QQsofocusZbs

HT1349 I have a Power PC G5 mac. It's Dual 1.8 GHz and has 1 GB DDR SD Ram. This mac has no wireless Airport Card. Where do I get one to install in the computer so that it is able to pick up wifi signal and how much is the cost?

I have an older Power PC G5 desktop mac. It has 1GB DDR and SD Ram and Dual 1.8 GHz. The problem is there is no wifi signal. I think I need an airport card to insert in order for this model to pick up wifi. How do I know which airport card to use?

Your Power Mac G5 had an option to have an 802.11b/g AirPort Extreme Card. You basically have two choices: 1) Search the Internet for vendors that still provide this card, or 2) Get a wireless USB adapter that supports both 802.11b/g, but also the newer 802.11n standard. An example of this USB adapter can be found here.

Random shutdown problem on G5 dual 2.3 GHz w/OS 10.4.7

Hello,
I’m using a dual 2.3 GHz G5, and it’s been working flawlessly since I bought it about a year ago. Until yesterday, I was running OS 10.4.5. Yesterday I upgraded to 10.4.7, and as soon as I booted up after the install, I started having a maddening problem with my computer randomly shutting down. (Not sleeping, but a complete power down.)
At first, the shutdown would happen immediately after powering up; my computer wouldn’t even make it to the blue progress bar. I zapped the PRAM and tried something I found online about unplugging the computer for 15 seconds, then plugging it back in. It now boots up, and I can log in, but the computer still shuts down randomly.
There seems to be no pattern to the shutdowns. I tried taxing the processor by opening and resampling huge Photoshop files while lots of other apps were open, and things were fine. Then it would conk out while I was composing an email.
I’ve heard of this random shutdown problem affecting Macbooks, but I have yet to find anything about G5 towers and OS 10.4.7. Does anyone have any info/advice?
Many thanks.
G5 dual 2.3 GHz Mac OS X (10.4.7) 2.5 GB RAM, 250 GB HD
G5 dual 2.3 GHz Mac OS X (10.4.7) 2.5 GB RAM, 250 GB HD

Thanks for the advice. I did check the system.log in Console and found the following altert:
PMU FORCED SHUTDOWN, CAUSE = -122
Now, since my computer is just over a year old, and since this problem happened immediately after applying the 10.4.7 OS update, I found it hard to believe that my hardware could be responsible. After 2 days of troubleshooting, I was stumped; after a 2-hour service call, so was Apple tech support. I ended up doing an archive and install back down to 10.4.5, and all is well.
I tested this issue on other machines running 10.4.7 and had no problems. It seems that the following specific combination of elements triggered the problem:
• PowerMac G5 dual 2.3 GHz (dual 1.8 machines did not exhibit the same problem)
• OS 10.4.7
• Logging in with Open Directory/Active Directory mobile profiles
• iTunes 7
Bottom line: if you’re using a dual 2.3 GHz PowerMac with mobile OD/AD profiles, do not update to 10.4.7, and steer clear of iTunes 7, at least until there is a patch update available.
(And Apple wants to be taken seriously in the enterprise market?)
G5 dual 2.3 GHz Mac OS X (10.4.7) 2.5 GB RAM, 250 GB HD

2.7 GHz PowerMac done in by leaking cooling system. THE REST OF THE STORY

This is the story of what happened when my PowerMac went down for the count. I'm posting it because Apple did a such stellar job at resolving a thorny service problem.
I had a Dual 2.7 GHz PowerMac G5 (purchased back in November 2005) that was a major headache all this year. It quit working entirely in March after months of crashes, corrupted drives, and loudly spinning fans. As I was putting the Mac into a box to take it to the local Apple Store for troubleshooting, I noticed a small puddle of what turned out to be coolant. I'd heard the cooling systems on these Macs wasn't very reliable and costly to fix, so I figured it would have to be trashed. Sure enough, when I got to the Apple Store, it was still leaking and the Genius said it would cost upwards of $1000 to fix.
I wasn't happy to hear that, but what could i do? It was out of warranty.
I bought a new 27-inch iMac as a replacement and went back to work. While on the way, I started wondering if I could fix the Mac myself as a hobby project. At work, I posted a question on Apple's Discussions describing what had happened to the Mac and got these replies:
+You should have posted - and looked - on the PowerMac G5 forum, and read up on theG5 Coolant Leak report, and how to deal with it. So check out the Discussion and http://www.xlr8yourmac.com report on the issue (under Systems).+
+http://www.xlr8yourmac.com/systems/G5coolantleaks.html+
and
+Read the xclr8yourmac link and call Apple Customer Service. They replace a lot of leakers with new MacPros if you say there is a fire or electrocution hazard. Read and learn.+
So I checked out the xlr8yourmac site and was shocked. I had no idea how much leaking had occurred, but after seeing photos of the damage to other Macs, the possibility of mine having caught fire while unattended gave me the willies because I'd been leaving my Mac running during the day so the Tools app could run thorough tests.
I called Apple support and told the rep how upset I was over a potential safety problem that was not mentioned on the Support website. He transferred me to Customer Relations where that rep made arrangements for me to get the Mac serviced.
I returned the iMac and gave them the G5 for repair. Two weeks later, I got the Mac back. They had replaced the rear exhaust fans and cable, the power supply, SuperDrive, 2.7 GHz multiprocessor, power supply cover, and the computer enclosure.
In short, they gave me back a resurrected G5 for no charge!
And that was a happy ending that lasted all of five months, during which the fans slowly increased in volume and CPU temps crept higher.
Last month everything went weird. The Mac would go to sleep in the middle of file transfers, sometimes it would hang on restart, and other faults. I called Apple Tech Support and set up a service appointment at the Apple Store.
A week later, I had shelled out $250 for a replacment video card (which seemed strange because video had been about the only thing that hadn't been malfunctioning!) and, fingers crossed, took the Mac home.
It ran worse after the service than before! Fans were screaming, it would crash at the Finder or hang after restart, often wouldn't recognize the Leopard DVD, etc. (But hey, at least video still worked!)
I was getting frustrated at this point, so I called Apple again and worked with a higher echelon tech who told me to reset the PMU switch. It seemed to work, the fans quieted and the machine restarted without hanging. But it seemed dog slow, so I checked Activity and found that one of the CPUs wasn't working.
Another call to Apple where the really helpful tech said it was probably a logic board (the one component that hadn't been replaced already!) and that I should take it in so they could determine if that was the problem. If it was, he would see about tying the repair to the previous service since it was likely that the logic board had been damaged by the coolant leak.
I took it in for repair last Saturday, keeping fingers crossed that this time they'd fix the machine. On Friday, I got a call from them saying that they had "stripped some screws" while performing the service, so the computer couldn't be reassembled. At first I was stunned by the news--now what?!
It got better: As compensation, they replaced my 5-year-old Dual 2.7 GHz PowerMac G5 with a brand new 2.8GHz Quad-Core Intel Mac Pro G5! Gotta hand it to Apple, they did what it took to resolve a maddening problem with one of their products in a way that left me feeling I'd been treated fairly.

Wow! Can't believe they'd give you a new machine on that 5 year old paper weight! Though it was a design flaw. Did you have Apple Care? Just wondering in case mine does it.
I've never had any trouble with my dual 2.5, bought it new in early '05 when the 2.7 came out. I've added memory and larger drives. I've had a problem with a dvd drive I put in it. It would not release the disc on the first eject, if it was a DVD. It's definitely the drive since I now have it in a different machine and it does the same problem. Now I have a Dual Layer burner from a 2.3 dual core.
Other problem I've had with it was a Radeon 9200 card I put in it to get a third display never worked right. I had ATI replace it at least twice and I think it's just a design flaw with the G5. It would stutter on the connected display, slow response time and if iTunes was running the sound would pop.
Removing the card fixed it so the card is back in the box. I'm guessing it would work fine in a G4. But yeah, all problems with 3rd party stuff.
Other than that, no cooling problems or anything else.
I did some speed tests between my 2.3 DC and the 2.5 and the 2.5 is noticeably faster. About a gigaflop. Faster memory on the 2.3 and graphics but slower processor and system bus.
I'm guessing the 4 fastest G5's are the Quad 2.5, then the Dual 2.7, Dual 2.5, then 2.3 DC.

Upgrade Powermac Dual 2.0 GHz G5(2004) or buy MacMini using Lightroom

I have a Power Mac Dual 2.0 GHz G5(June 2004) with 8 slots for RAM (4 GB installed) and a GeForce FX 5200 64 mb AGP video card. I also just installed a new 500 GB 7200 rpm harddrive to help. The G5 has been a work horse for me for many years. I hope upgrading my G5 is a viable option vs buying new.
I am a photographer and use Lightroom for all of my RAW photo processing. The problem I am having with Lightroom, on my G5, is after I import the Nikon Raw images into Lightroom, as I click on an image to edit in the develop module, I have to wait for 5-10 sec for the image to load before I can began editing. This is very time consuming for editing 300-400 images at a time. My MacBook Pro 2.4 GHz performs this without any problems and quickly. Will more RAM or a new video card help my G5? Apple store person told me 4 GB of RAM is plenty. Do I need a 128 mb or 256 mb video card? Maybe I should try a MAc Mini to hold me for a year. I plan on purchasing a 24" IMAC in 1-2 years. Thanks in advance for your time.
Dwayne

Q: Why start 2nd thread, even if one reply didn't fit or provide the options you wanted to hear?
Same question asked once already -
http://discussions.apple.com/thread.jspa?messageID=10322869
I still think save and consider the next revision to the iMac line rather than throw more at your G5.
SATA drives that you can use now and in the future are likely to be safe investments.
People have used 3 x 10K VelociRaptors, along with cheaper but still fast WD Caviar 640GB as a great way to improve performance. SSDs are fast but probably for 1st gen G5 would require a PCI-X controller.
Check the Drive Upgrade DB:
http://forums.xlr8yourmac.com/drivedb/search.drivedb.lasso

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
Powermac G5 Dual 2.0 Ghz Mac OS X (10.4) 1.5 ram, 150 gig hdd

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.

PowerMac G5 Dual 2.0 GHz Bootup issues

So, although I have much knowledge about Windows and a decent amount of knowledge about Linux Operating Systems, I know little to nothing about Mac OS X. My knowledge of iOS 8.1.2 is very good, but switching to Apple as my main provider of computer and phone systems and parts has been frustrating. I have 3 PowerMac G5's, each the dual 2.0 GHz models that I recieved as a housewarming gift to the Apple community. However, when I start up the computer, I get a flashing symbol with the "Finder" application logo, then a square with a "?" In it, then back and forth with a second between each flash. I've tried holding the option key with and turning it on (with no CD, with a copy of OSX mountain lion on a disc in the drive, and with a copy of Ubuntu 14.04.1 LTS burned to a disc in the drive). I have tried installing the Mac OSX Mountain Lion to the hard drive on a separate computer, then booting it using the PowerMac, but to no avail. Can anyone help me with this issue? I've fallen for Apple and won't revert back to windows, but don't want to buy a whole new Apple computer.

Tiger Requirements...
To use Mac OS X 10.4 Tiger, your Macintosh needs:
    * A PowerPC G3, G4, or G5 processor
    * Built-in FireWire
    * At least 256 MB of RAM (I recommend 1GB minimum)
    * DVD drive (DVD-ROM), Combo (CD-RW/DVD-ROM) or SuperDrive (DVD-R) for installation
    * At least 3 GB of free disk space; 4 GB if you install the XCode 2 Developer Tools (I recommend 20GB minimum)
http://support.apple.com/kb/HT1514
Apple may even have an International version, but reports are sporadic...
https://discussions.apple.com/thread/5231053?tstart=0
http://www.ebay.com/sch/i.html?_nkw=mac+os+x+tiger+retail+10.4
See Tom's, (Texas Mac Man), great info on where/how to find/get Tiger...
https://discussions.apple.com/message/15305521#15305521
Or Ali Brown's great info on where/how to find/get Tiger...
http://discussions.apple.com/thread.jspa?messageID=10381710#10381710
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)
Classic/OS9 Apps no longer supported.
May be available from Apple again, or not...
https://discussions.apple.com/thread/4720126?tstart=0
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
List of Applications Not Compatible with Leopard...
http://guides.macrumors.com/List:Applications_Not_Compatible_with_Leopard

I have a Apple Power Mac G5 Dual 2.3 GHz/6GB RAM/500GB HDD/Superdrive PowerPC Desktop and just bought an Airport Extreme card for it. The card is recognized but will not see the in-house network. This is a pre-intel computer. Do I need an antennae?

I have an Apple Power Mac G5 Dual 2.3 GHz/6GB RAM/500GB HDD/Superdrive PowerPC Desktop and just bought an Airport Extreme card for it. The card is recognized but will not see the in-house network. This is a pre-intel computer. Do I need an additional antennae? If so, which one because my research is confusing me about what is supposed to work with this computer.

Please check out the following Apple Support article to see if your particular Power Mac model supports an external Wi-Fi antenna.

Is there a processor upgrade available for a Dual 1.8 GHZ G5?

I am looking to upgrade a Dual 1.8 GHZ G5 to 4 processors if that is possible?

Not 4 CPUs, but somebody here in the last month or 3 changed to higher rated G5 CPUs on a slower Logic board, which I didn't know would work, not sure which speeds it was & can't dind anything on Apple of course.

Dual 1.8 GHz PowerPC G5: is it possible to upgrade to latest OS?

Hi!
I'd love to upgrade to the latest OS. But does my computer (Dual 1.8 GHz PowerPC G5) can handle it?
(I want the Magic Mouse, but seems to me like I'll have to buy a whole new computer for that! Doesn't make sense! My computer is not THAT old!)
Thanks to everyone!
Chris.

Now... How much does an upgrade from 10.4.11 to 10.5.8 costs?
They no longer have 10.5 listed on the Apple Store online... they probably have, or can get a copy at a retail Apple Store, or you might be able to find it at a Best Buy. The cost of it new is $129. If you can find a used copy on eBay, you could probably get it cheaper, but make sure you're getting an original disk and that it's not a gray disk that shipped with a particular machine (which won't work on yours).

HT1338 I have a Mac Pro Dual Core, 3 Ghz, that I purchased in the Spring of 2007. What is the latest OS that i can upgrade to? And is that OS compatible with Logic 10?

I have a Mac Pro Dual Core, 3 Ghz, that I purchased in the Spring of 2007. What is the latest OS that i can upgrade to? And is that OS compatible with Logic 10?

Logic Pro 10 requires OSX 10.8.4, which is not officially supported on your Mac Pro (must be Early 2008).
There are, however, unofficial workarounds to install 10.8 on those older models that you can search for on Google.

PowerMac G5 Dual 2.5 Ghz. Want Start PLEASE HELP ME!!!

HI, all
I have MacPro G5 Dual 2.5 Ghz. 2004 PCI-X Bus
Yesterday my mac freeze during normal operation in Leopard 10.5.8
When I tried to restart the computer stop after display Apple Logo in the startup.
I have tried all this features:
1) Start from CD Same.
2) Reset SMU With Power Switch in the mani Board Same.
3) Reset Pram In some case the computer freeze and it's doesn't do that, in some other the Pram is reset but the machine still doesn't start.
4) Replace Pram Battery 3.6 V Same.
5) Start With Open Firmware (Altcommand+of) When i write "reset-all" The machine Freeze.
6) Start with Hardware test CD And IT Work Fine, all tests are passed with OK in base and exaust test!!!!!
7) At last I have replace the video Card, but same freeze at start.
I have tried to swap display using second monitor out And I have seen some strange things:
When I use second display connector the computer still freeze during the startup sequence after the apple logo, but when i shut off computer pressing 10 second the power switch and reconnect the first display connector the machine start normal al all work fine (INCREDIBLE!!)
But when I shutdown the computer the next time i try to power on it freeze in the same way!!!
Just for information if i start in verbose mode (command+v) the machine freeze after "DART Enable"
Please anyone could help me to resolve this issue?
Thank's In Advance and sorry for my bad english.
Bye

Hi, I have Dual 2.0 GHz machine and it has some of the symptoms yours has. In Open Firmware if I type reset-nvram, set-defaults and then reset-all the computer does freeze, but in my case if I type reset-all without those two the computer resets itself as it is supposed to do.
My computer usually hangs at the apple logo and verbose mode shows DART Enabled as last message, rarely it will not chime at all or will chime but so no picture. If sometimes boots fine and runs without problems for 15 seconds to 3 hours, in my case it seems that if I run the CPU's at maximum settings and put them to constant stress the system is more stable, which I think is odd.
I have replace PRAM battery but that did not change the situation. I will later try to reseat or remove one of the processors altough I don't know if these motherboards are designed to work with processors removed.
I think it is motherboard or CPU -issue.

Flash 8 Pro freezes on Mac G5, dual 2,5 GHz

Ever since I upgraded from Flash MX 2004 Professional to
Flash Professional 8 on my PowerMac G5 it doesn't run. All I can do
is
open the software but as soon as I click on a menu or a
button, whatever, like changing the size it freezes instantly. I've
searched the forum and every possible place to find any answer that
can solve my problem but it seems like I'm alone with this, I can't
find any information anywhere. I've even tried to un-install and
re-install Flash again but same problem still occur - freezing. Has
anyone had the same problem on a Mac G5 with dual 2,5 GHz
processors, in that case – what did you do to solve the
problem? I'm out of ideas and can't figure out more.
My specs are:
PowerMac G5 (2005), dual 2,5 GHz processors
Boot ROM-version: 5.1.8f7
Systemversion: Mac OS X 10.3.9
Kernel-version: Darwin 7.9.0
1 GB RAM memory
Apple 20" flatscreen, 1650 x 1050 pixles resolution
Flash Professional 8, upgrade (Flash worked fine before the
upgrade!)
All other Studio softwares I upgraded run and work great,
except for Flash.
Please help me, I need HELP!

I also have to add: I can't even click on Preferences in
Flash, nothing. It freezes instantly. It run as long as I don't
touch ANY button or menu in Flash, as soon as I do anything, touch
a menu or button Flash freeze.
Anyone know what to do? Or shall I throw it out and install
an earlier version like MX 2004 Professional, that version of Flash
worked. Please, please, please... Help.

Upgrading RAM on Dual 2.5 Ghz PowerMac

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