Imac G5, Can I use a power supply from a G4 Q-silver (rewired connector)?

I've got a G5 Imac with a blown PS, and I'm thinking of modifying a G4 Quicksilver power supply for use as the power source for a 20" Imac G5. Yeah, I know it sounds a bit weird, but hey, I was given this Imac G5 (1st Gen. 1.8GHz) for free. It's missing the back cover, and the PS is shot. So if I blow it up it no major loss. It's a project!
I have determined that the original PS is shot and needs to be replaced. I don't really want to drop $140 for a replacement PS, as I would also have purchase the back cover for another $40 + shipping. Go figure, right? It appears that most of those power suppies tend to fail early, anyway.
During my checks of the Imac internals, I also noted that during the "power on" tests, using the old power supply, I would get the second indicator light on the motherboard to flash for just a moment. According to Apple, this indicates that the motherboard is probably good, and that the power supply is bad as it's only providing a momentary voltage spike during the start up faze, before the power drains from the PS. Then it quits. So I thought, is it possible to use the QS power supply, only modifying (rewire) the main 22 pin connector voltages so they match the Imac's pinout? Both connectors are 22 pin and most of the pinout voltages match up the same. There would appear to be only two major connectors that would need to be rewired. So can I use a modified QS power supply to power my Imac?
A couple of extra notes about this Imac:
1) There is no back or stand with this Imac, it just the main guts. So I would need to build a suitable enclosure to maintain proper air flow, and use the QS power supply outside the Imac. That wouldn't appear to be a big problem.
2) My biggest concern is this. The QS power supply uses 28v for the start circuits, versus 24v for the G5 Imac PS. Would this make a significant difference, and if so, why? I'm assuming it will, but it an area I'm unsure of with the Imac. Any thoughts or experiance in this area here would be greatly appreciated.
3) Hey, if worse comes to worse, I can always purchase the extra parts and rebuild the Imac for around $200-$300 US, and it would still be a deal (at least I think so). However, at present this is just a pet project, and if it goes south (doesn't work), it's not like I'm out some major $$$$.
Thanks in advance!

I have no idea whether your ideas would work, but go to xlr8yourmac.com for some ideas. If you decide to purchase parts, try [http://www.synaptech.com/catalog> and also look at [http://www.jimwarholic.com/2008/07/how-to-repair-apple-imac-g5.php] for tips.
Let us know what you end up doing,

Similar Messages

  • Can I use the power supply from a 1.83GHz CD mini with a new 2.53GHz mini?

    Because I'm too lazy to remove the old power supply, I just want to swap out my old mini for my new one.

    I did this for a month, for the same reason as you. Both power supplies are are 110 watts -- although you can double-check that, if you like.
    Eventually I did make the change, I guess because I didn't want to put "new wine in old skins".

  • Can I use the power supply of 4507R into 4507R+E?

    Can I use the power supply of 4507R into 4507R+E?
    I have two old 4507R with 1300W power supply，now I want to upgrade to 4507R+E，Can I use the power supply of 4507R into 4507R+E?

    According to this Q&A you can:
    Q.    Can I use the existing Cisco Catalyst 4500 power supplies in the E-Series chassis?
    A.     Yes.
    Link:
    http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-4500-series-switches/prod_qas0900aecd806d8b06.html
    HTH

  • Can I use a power cord from a Macbook air with a Macbook?

    Can I use a power cord from a Macbook air with a Macbook?

    No, the MacBook Air power adapter is a 45 watt. A MacBook needs at least a 60 watt power adapter although you can use a MacBook Pro 85 watt adapter. You can use a higher wattage adapter without any problems.
    http://support.apple.com/kb/HT2346

  • This Generation MacBook Pro vers last Gen.  Can I use same power adp from old model?

    I just got a new MacBook Pro 17 with 512 sdd.  I also have the previous generation of the same book with 7200 rpm drive.  Can I use the old power adapt on the new MBPro?  Thanks

    I have done so with a 15", though only for a few hours. Try it!

  • Can I use a power cord from a 2007 iBook?

    I have extra power cords from my old iBook - I would keep one at home and one at work. It appears to fit the new 13" MacBook Pro. They are both made by CE and appear identical except for the 90º magnetic connector on the new model.They are both labeled: Input AC100-240v-50-60Hz 15A; Output 16.5v 3.65A ADP-60AD B
    I don't want to blow anything up...

    Actually I misspoke: the old laptop is an early generation white polycarbonate MacBook with the first Intel core duo. It does have a Magsafe, and I am asking if I can plug the entire cable from the old MacBook from the wall into the new MacBook Pro.
    Thanks for your help!

  • YES OR NO: Can  I use a power charger from a Macbook on a Macbook Pro?

    Simple as that.

    The same qquestion has been asked hundreds of times earlier. Let's try it one more time. Although the power adapter is charging, the MBPro battery will discharge faster than it'll charge. Eventually, the MBPro will shut down, until the battery is charged. It's just that simple.

  • Can I use power supply from iPad for iPod

    Can I use the power supply from my iPad to charge my wife's iPod?

    Yes. That shouldn't be a problem.
    B-rock

  • Can I swap the power supply on my iMac G5 without any unwanted side effects?

    Hi All,
    I'm new and have searched related posts, but have not found an answer to this exact question.
    I have a first generation US version iMac G5. The label says that the power supply is 100-120V. Can I swap the power supply using an internationally rated power supply (100-240V) from a later version iMac G5 without any unwanted side effects? Such as the iMac G5 ALS power supply?
    I live China and would prefer not to rely on an external power suppressor or convertor. I would prefer to plug and go.
    Thanks,
    SGP

    Try looking in xlr8yourmac.com for hints, also check out Jim Warholic's site.

  • Can I use a Power PC non intel Mac Mini as an external HD with my iMac 3.06

    Can I use a Power PC non intel Mac Mini as an external HD with my iMac 3.06 Intel Core Duo
    I can't figure out how to get this to work. Is it possible?

    WildBull wrote:
    Will it work if I connect via usb instead of firewire?
    No. There is no "USB Target Disk Mode".
    Just so we're clear, when you start your Mac mini in FireWire Target Disk Mode (TDM - holding T on startup), do you see a FireWire icon on the Mac mini's display? IIRC, it's not required that the Mac mini be connected to a display for TDM, but it would help diagnose whether or not the mini is actually starting in this mode.

  • I'm in the trial period for Creative Cloud - I have about 19 days to go on Photoshop CC on my iMac.  Can I use the same CC trial on a second machine?  Specifically on a Windows 7 machine?

    I'm in the trial period for Creative Cloud - I have about 19 days to go on Photoshop CC on my iMac.  Can I use the same CC trial on a second machine?  Specifically on a Windows 7 machine?

    Nothing personal to you or Rajshee, but this is exactly why I absolutely despise these "community forums" (not just Adobe but any company).  I called the Tech Support phone line today after digging and digging for a phone number, and they told me the exact opposite, and they did it a lot faster than it was possible to get a forum response.  (That's really not personal, because you can't control that, but it's a fact.)
    Their answer: As long as I'm signed in with the same ID, I can try, say, Photoshop CC on my iMac at home and also try Acrobat Pro CC on my Windows 7 machine at work.  Same account, same login, one trial.
    This makes complete sense to me as I'm financially on the hook (potentially) for the same package.  If I give away my login to someone else, which I wouldn't do, I'm still on the hook.  This is why the cloud approach to software is such genius and I applaud it.
    BTW, 99% of the "community forum" wrong answers come on Microsoft sites, so don't feel bad. 

  • I cant seem to scan from my hp photosmart 7520 printer to my iMac but can scan using the iMac? photosmart cant see the iMac.

    I cant seem to scan from my hp photosmart 7520 printer to my iMac but can scan using the iMac? Photosmart cant see the iMac. Mac is wired to the router printer over wi fi.

    Hi Shlomi
    It worked!!! Thanks so much, I've been messing about with this for hours.
    As you are so good I do have another problem. I have another 2 pc's on the network that show on the iMac but iMac cannot conect to. One is XP and the other is Vista both with Norton fire wall installed.
    Any thoughts you have would be much appriciated
    Rob

  • I need to repair a Macbook Pro with disk utility using target mode to another my iMac. Can I use ethernet cable or must it be firewire?

    I need to repair a Macbook Pro with Disk Utility using target mode connected to my iMac. Can I use ethernet cable to connect them or must it be firewire?

    Firewire

  • IMac 20" can be use also only as monitor?

    Hallo, i'm interested to know if the new iMac 20" can be used also only as monitor, i mean if can be connected an PC with windows XP to the iMac. From the Technical Specifications page i couldn't understad, sure that is possible to connect another monitor or TV but is not clear if there is a video IN port.
    Thanks

    No this is not possible.
    The best you could do is run some sort of remote control software on the mac to control your windows xp machine with i.e Microsoft Remote Desktop of Virtual Network Computing (VNC)
    You can watch tv on your mac with special accessories that let you record tv signals and encode them to your hard drive in the mac.

  • MuVo2 (1,5G): Can I Use output power only (not install the battery) when I listen the mus

    Hi Sir:
    When I am in home and listen the music on MuVo2 ,can I use output power only (AC power) and remove the battery ( the battery is not in the MuVo2)?
    This is good to the MuVo2 or not ? (have any damange?)
    Because I always use the MuVo2 in my home, I think to charge AC into the battery, and use it until in low battery , then charge again.. It seem to a little stupid....
    Can I use AC(output power) only when I listen the music ? and remove the AC(output power) when I close/shut down the MuVo2 ? ( I know , the usermanual say it is not good to MuVo2 if AC(output power) "always on" the MuVo2 even it's shutdown.)
    I saw in the usermanual there will be a little image indicate the MuVo2 is "output power only".... So can I use output power only or not ? Is it good to MuVo2?
    Thanks a lot !!
    ( Your product is great~!)
    B/R, Richard

    Richard,
    Yes, you can use the player on the AC outlet only if you want, that's fine.
    Cat

Maybe you are looking for

  • Most of my equipment has toasted, and I need the data back.

    I must have been a very, very bad person in a past life. This week has been more technologically harrowing than I'd thought possible. My cherished Titanium Powerbook died after a valiant battle, and the Apple techs said that there was nothing they co

  • Unable to expand volume on array

    I've got a Mac Pro (Early 2008, 8x2.8Ghz, 6GB memory) with a Highpoint RocketRaid 3522 card in it. I started out with a raid 5 array of 3 1TB WD GreenPower drives in a SuperMicro CSE-M35T-1B sata cage. Partitioned it as GUID HFS+ (1.8TB) and it works

  • VPN Problem: Can't route to other network clients

    Hi, I can't ping the other clients on the network when I'm connected to VPN from outside. But accessing internet trough VPN works. (Sending all data through VPN). So in fact, I can only ping the VPN server I'm connected to. Maybe someone here has an

  • Fonts in java apps for win and linux

    Hi everyone. i need to build an application mult-plataform, to run in windows and linux... but i don�t know waht font i must use...the default font that java takes doesn�t exist in linux (dialog)... waht font should i use in my app?? thanx

  • HT5167 image data corrupted message when installing anything. Please help!!

    A couple of days ago something happened and now every time I tried to install an app i receive the following mesage: (app being installed file name).dmg image data corrupt. Can anyone point me in the right direction please???