iFixit - Answers With Device "Power Mac"

Power Mac G5: SSD in a PowerMac G5?

Fri, 03 Apr 2020 10:01:50 -0700

I have a PowerMac G5 and I want to install a SSD 128GB. I do have two Hard Discs (160GB and 500GB).

Is it possible to install it? What type of SSD should I find? Are there different types in the market?

⟐ Commented 4월 03, 2020 at 10:01 GMT-7

Power Mac G5: Will not boot, grey screen

Mon, 14 Jun 2021 12:11:45 -0700

This is a G5 2.5Ghz Quad. OS X 10.5.6. 8GB RAM. I get the boot sound, then a grey screen. That is all. Then the fans start blowing real loud until I turn it off.

This is what I have tried:

replace with other RAM
unplug drives
Reset nvram like in this article. The problem is then that I have problems getting to OpenFirmware. Sometimes I am able to but when I get to the OF screen there is no reaction from typing. I can i.ex. type the first line but then there is no response from the keyboard. The keyboard is plugged directly into the USB port.

I got hold of the Apple Service Source Manual for Quad G5. (Let me know if someone needs that!) and just getting to the cooling and the power supply seems a bit tricky. So I read about this Apple power supply exchange (http://www.apple.com/support/powermac/po...) and am trying for that first. So it seems from the LED light that the CPUs are overheated and that could be related to the power supply going bad. I will post results of my shot at Apple.

UPDATE - THINK I MAY GIVE UP **

I took the machine to an Apple service center and they confirmed it was the processors gone bad. Of course this has to do with the cooling failed. Still I was not able to get a warranty repair even if I showed them the extended powersupply article and the article about the cooland leak. They said the machine was too old. They did offer me to fix the machine for about $1300. Since this is 2 machines with same error and since I have 16GB of RAM invested in each one just before this all happened, I might just have to accept the offer. Any comments?

⟐ Commented 6월 14, 2021 at 12:11 GMT-7

Power Mac G5: Video Card Upgrade

Sun, 08 Jul 2012 15:05:50 -0700

I burned out my Radeon 9800 Pro Mac version (256meg) AGP, DVI & ADC. I can't find a good breakdown of performance on available cards. SquareTrade just sent me $200 to replace it. Can anyone recommend a comparable used card or upgrade from the 9800 card for under $300?

⟐ Answered 7월 08, 2012 at 15:05 GMT-7

Power Mac G5: Why won't my G5 boot?

Wed, 12 May 2021 06:29:19 -0700

I turn the machine on, the little light above the start switch does not go on, there is not single gong signifying boot up and nothing on screen. Can't boot from DVD either. Tried removing memory, resetting all cards an devices, and resetting PRAM with the silver button on the system board. Still no luck.

Any suggestions?

Still not resolved. The machine is a 2.0GHz dual tower model, late 2005. I can remove the inner cover and the red light goes on. Tried resetting both PRAM and SMU but still no luck. Earlier in the week, I was able to reboot it but if I turned it off, it wouldn't go back on again. Tried new power cable and different outlet but same thing.

Sounds like the power supply. Where can I buy one for this model? Are there any disassembly guides on iFixit to help?

⟐ Commented 5월 12, 2021 at 6:29 GMT-7

Power Mac G5: Power Mac G5 won't start

Tue, 03 Jul 2018 06:25:55 -0700

Late 2005 Power Mac G5 (Model A1047) does not power up. It fires up, the power button light on the monitor blinks (single blinks about every 4 seconds) but the monitor does not light up. The fan in the tower does start running after its on for sometime, but no display or anything else. Tried the cudo (?) button (for one second first and again for 30 seconds as suggested on a forum), and resetting the PRAM (command+option+P+R), force shutdown..... nothing works. I have 4x 1 GB RAM installed and they are paired.

This is a hand down computer that has been sitting idle for months (maybe even a year) now. Not sure if that is the issue. Any help is appreciated.

Thanks!

⟐ Commented 7월 03, 2018 at 6:25 GMT-7

Power Mac G5: Connecting Mac G5 to wifi

Tue, 24 Aug 2021 11:14:15 -0700

I'd like to connect my old Mac G5 to wifi. I have the wifi antenna which is plugged in but do I need some sort of card or adaptor?

⟐ Answered 8월 24, 2021 at 11:14 GMT-7

Power Macintosh G3 All-In-One: Hard drive recognition size and mounting problem

Tue, 04 Feb 2014 18:07:46 -0700

I building a hot rod Beige G3 for a customer. I've built one of these for him before but forgotten a lot about these machines because it's been ten years +. Using 10.2.8. Sonnet 1GHz G4 CPU. 768 Megs of RAM. Bus one, a 120 HD formatted 2 partition to a 7.5 GB with the systems on it and 112 GB as storage. The second hard drive, 500 Megs, was formatted on a MDD to be able to see past the 128 Meg limit. System profiler sees the drive as a 128 but won't mount it. The drive is set to master and the DVD set to slave. I seem to remember there were three different ROMs for this machine but don't remember why. Anyone have a better memory than me? I hope so.

It took a month or trial and error but I now have the answer.

⟐ Edited 2월 04, 2014 at 18:07 GMT-7

Power Mac G4 Quicksilver: Is it possible to put leopard on my G4?

Sat, 06 Jan 2024 12:45:09 -0700

I have a dual 800 system and i was wondering if there was a way to up the speed without buying a new processor so i can install Leopard on my system.

⟐ Commented 1월 06, 2024 at 12:45 GMT-7

Power Mac G5: Power Mac G5 won't read DVDs

Thu, 07 Nov 2019 20:43:19 -0700

A SuperDrive equipped PowerMac G5 running OS-X Tiger will read and burn CDs, but won't read DVDs. Upon checking the hard drive "partitioning" scheme, it shows that it's formatted with the older Apple Partition Map - not "GUID". Could this be the cause of its inability to see DVDs? If I also re-partition the Hard Drive as GUID and upgrade the OS to 10.5 Leopard, will this solve the problem? (I already reset the PRAM and reset the "Open Firmware").

⟐ Answer accepted 11월 07, 2019 at 20:43 GMT-7

Power Mac G4 MDD: SCSI PCI card bus controller

Sat, 25 Jun 2011 12:36:58 -0700

I got in a PowerMac 8100/80 today with some data the customer needs on it. I thought no problem, I'll just drop in a USB PCI card. Upon opening, it is NuBus. Pulled the hard drive and put in an external SCSI enclosure. Put a SCSI PCI card in to my MDD. The external drive is not seen. Checked my system profiler and see no SCSI driver. Any idea on where to get one that will work with 10.5.8. By the way, the 8100/80 still runs just fine, but does seem a bit slow and needs a battery. Not bad for a machine that's older than Nick!

UPDATE

Seagate ST19171N, 1 5/8", 10 pairs of jumpers, 4 pair block on first four pair, skip one and a jumper, four bare pair, standard SCSI external box with two 50 pin centronics. No terminator block on box. Cable is a 50 pin to 25 centronics. PCI SCSI II Apple brand card

⟐ Answered 6월 25, 2011 at 12:36 GMT-7

Power Mac G5: How do I remove the hard drive in the top bay?

Thu, 23 Jun 2011 13:54:42 -0700

I need to replace the hard drive located in the top bay at the rear of the enclosure. It just clicks and fails to spin up. the hard drive must slide out, and there is a tab that swings out of the way, but the case enclosure is in the way. Apple engineers are masters of making equipment accessible and repair friendly, but I am stumped on this one. There must be an easy way. Anyone know where the magic hard drive ejection lever button thingy is?

Thanks

Miccol

⟐ Commented 6월 23, 2011 at 13:54 GMT-7

Power Mac G4 MDD: Where do you fix or buy power mac G4 power supplies

Wed, 12 May 2021 03:39:39 -0700

how or where do you fix or buy power mac G4 power supplies, Samsung LQ3352ABPoWB, apple pin 614-0224

Sorry for the delay, just had world wind of unexpected etc..

Here is the pictures of the psu now finally removed from G4 MDD

add'l zoomed in pictures

do I need to remove fans so I can

lift up housing to get other view?

----- went ahead and unscrewed fans to get other views

⟐ Commented 5월 12, 2021 at 3:39 GMT-7

Power Mac G4 MDD: G4 MDD freezes when CPU gets hot - why?

Wed, 31 Jul 2019 20:16:21 -0700

From a cold start the CPU (Dual 1.25GHz) temperature rises until it reaches over 50°C in about 40 minutes, when the G4 freezes. The HD remp also rises steadily to 35°C. I have to press the start button to shut it down.

I have cleaned all dust and fluff out of the machine, checked that all fans are working and replaced the heat sink grease and still it happens.

If I open the side door and use a small external fan to blow cool air over the heat sink the G4 operates normally for hours with the CPU temperature at a steady 35°C and the HD at a steady 26°C.

The technician (Apple Genius) at the local Apple Shop said they did not have the gear to check everything on such an old model

Mac, but all the sensors checked out OK and he thought the problem may be an ageing CPU. What do you think?

Roy Clark

rclark@bigpond.net.au

Sydney, Australia

⟐ Commented 7월 31, 2019 at 20:16 GMT-7

Power Mac G5: Looking for an evaluation of video cards

Sat, 18 Apr 2015 22:23:38 -0700

I'm looking for an evaluation of available video cards for the Power Mac G5.

⟐ Answer accepted 4월 18, 2015 at 22:23 GMT-7

Power Mac G4 MDD: System Launcher in System 9

Sat, 30 Jan 2010 20:58:47 -0700

I've got a customer I just can't get to move to system ten. He wants his launcher on the desktop on start up. I've put an alias in the (System Folder - start up items) but that doesn't bring it up. I work on system 9 so seldom now that I've forgotten how to do it. Does anyone have a better memory than mine?

Thanks

⟐ Answer accepted 1월 30, 2010 at 20:58 GMT-7

Power Mac G4 M5183: Do you provide your services in India?

Fri, 07 Jun 2019 04:59:42 -0700

Do you provide your services in India ?

⟐ Answer accepted 6월 07, 2019 at 4:59 GMT-7

Power Mac G5: How do I repair these power supplies

Sat, 26 May 2018 08:45:12 -0700

There was a know issue on these power supplies but I cannot find what it was. Here was the Apple recall which has expired: http://www.apple.com/support/powermac/po...

I have several units I would like to repair. I know they can be sent off for repair. Any ideas?

⟐ Answer accepted 5월 26, 2018 at 8:45 GMT-7

Power Mac G4 MDD: DIY Power Supply repair?

Tue, 29 May 2012 06:41:05 -0700

Is there a way to repair the MDD power supply?

I mean, it might be some specific component that burnt out?

I haven't open the power supply, but am hoping it can be something as simple as a capacitor.

I've been searching and found the next cheapest way (If it works in the long run) is running a external modified ATX PSU based on http://atxg4.com

⟐ Answer deleted 5월 29, 2012 at 6:41 GMT-7

Power Mac G5: power supply repair

Sat, 28 Sep 2013 20:44:18 -0700

My aging Mac Pro G5 (late 2005) has a blown power supply. What is the cheapest way to get this running again? The Apple replacement part seems a bit pricey. Is it possible to use generic replacement parts and get it running again?

⟐ Answer accepted 9월 28, 2013 at 20:44 GMT-7

Power Mac G5: Information about LCU/heatsink cooling

Tue, 29 Oct 2019 03:00:05 -0700

A friend of mine has an early 2004 dual 2.5 PCI-X G5 and we were wondering if we could take off the LCU *liquid cooling unit* and swap it out for regular heatsinks. Understandable that the fans will run a little louder, but it will also preserve the logicboard and PSU from being zapped with coolant. Could this be accomplished and then re-calibrated with the AHT 2.5.8 CD?

The answer to my question is yes. I bought a dual 2 GHz AGP G5 due to intermittent power issues, so i swapped out the 600W ACBel PSU for my Liteon 600W PSU and i ran the dual 2 GHz cpu's for a couple of weeks. Then today i swapped out the 2 GHz cpu's with the 2.5 GHz AGP cpu's and attached them to the heatsinks with new Arctic Silver 5 compound, and ran the 2.5.8 AHD disc and the thermal calibration passed. Now i have a dual 2.5 GHz AGP G5 running on air so no more LCS units for me!!!

Using Temperature monitor, my cpu's idle around 47 to 50ºC. If it goes over 65ºC then i hear the fans slightly. Then it drops back to idle.

⟐ Commented 10월 29, 2019 at 3:00 GMT-7