My 2*1.8Mhz G5 tower (second version) shutdown two day ago and refuses to turn up again. I have absolutely no sign of life, not even the external white led or the internal red one. I'm trying to figure out whether it is the power supply of the start button which cause the problem.
Is it possible to test a G5 power supply like an ATX power supply, by connecting two pins which would make the fans start ?
I have a PowerMac G5 with the first motherboard that is out of order, and another PowerMac
G5 Late 2005
with 2x2.0GHZ
Mounting the powersupply from the 2004 on the 2005 is the powersuply compatible or not?
EDIT: I looked on Mactracker and compared the two:
Max Watts in the first is 604W and 450W on the late 2005.
I want to put a powersuply from a G5 2004 (604W ) on a G5 2005 that had a 450W powersuply is this possible ?
I made this a new topic because I think it is important enough to do so. Probably most of those that originally complained about this have moved on to the new MacPro but I am sure there are still enough G5 owners out there that still have concerns about this topic.
A clean install of Leopard eliminates the infamous power supply beeping
Its amazing, my G5 is like a new machine; no more of the annoying power supply beep; although, I learned to live with it after a while and didn't even notice it. However, the silence is now very noticeable.
I hav" a "late 2004" G5 2.0 dual processor. To upgrade graphics card, I find many require a power supply splitter. Do I have a molex 4-pin connector? I can't see the location inside the box.
Information:
G5 dual 2.0, 2.5Gb
Mac OS X (10.4.3)
Anyone know where I can buy an extra AC cable for the MagSafe 85W power supply that came with my late 08 MBP? I'd like an extra cable and I'm not interested in ponying up the dough for the entire power supply. I checked the Apple Store and Macmall, but haven't found anything as of yet.
View 3 Replies View RelatedPower supply partially expired on my 2.3GHz G5. Have found a donor. Manual says remove logic board before power supply. But you could remove power supply with board in situ on older G5s...
Info:
PowerMac, Mac OS X (10.4.1)
It has no doubt come to the attention of many that the Radeon 4870 requires two PCIe six-pin power taps off of the motherboard, which is exactly how many allots. Say we wanted to use a GeForce 8800GT and a 4870 at the same time, which would require a total of three PCIe six-pin power taps. What I've read on the forums here indicates that powering them would be possible, but what ways would work?
As far as I can see, I've got two options:
1) Split one of the 6-pin power taps with a Y-splitter, and use the resulting two taps for one card and the other tap for the other card.
2) Use one of the ODD 4-pin molex power taps, convert it to a 6-pin tap, run it down to the card. But I'm running two optical drives; would it be possible to split one of those power taps into two, then run one out converted to a 6-pin and into the card?
I don't know nearly enough about the motherboards and power sources to know which way would work - if any - and if there is any risk involved. I'm running an early '08 mac pro, but I'm curious if this would work in other models as well. Anybody know enough about the hardware to say?
i'm in desperate need of an APC backup power supply for my mac pro and acd. the old backup i've got (APC ES350) is not sufficient to power the mac pro and acd. i purchased the ES350 for my powerbook almost 7 years ago.
anyway, every time i have a power failure (it happens quite often), my entire system shuts down. which APC should i buy? i want to ensure that everything still runs for a good while so i can save everything before powering down completely.
There has been plenty of discussions in the past re: CPU, HDD and RAM temperature, but what about the power supply on the Mac Pro?
My 08' MP reports 70 degree Celsius while the 09' MP reports 35 degree Celsius, while both machines are reporting an Ambient temperature of 27 degree. Why such a discrepancy?
How about your machine?
The power supply fan in my 2010 3.2 quad just went beserk. Spinning at 2950 rpm. I suht down and restarted using the four finger solute (command-option-p-r) and it seems normal now.
What could have caused it to spin full speed? Maybe I should buy apple care . . .
I was wondering if someone could tell me what power supply is used in the current oct/quad core mac pro. Also in the Power Mac G5 and early versions of the mac pro. I am thinking of buying a Power Mac or early Mac Pro second hand and will upgrade the GPU myself and just want to know what PSU (watts) they have.
View 24 Replies View RelatedWhere to get power supply for - imac os x /model # M6498 EMC NO 1991 100-240V
View 3 Replies View RelatedAt the beginning of the year my power supply died and Apple changed both of them. 4 months later, happened again. Now, 4 months later, it is happening again!
The power supply is plugged into a power strip with other electronics as well. The power supply keeps the laptop alive but won't charge it. If you unplug it the battery drains like normal. No light on charger, other chargers charge the laptop.
Do I have dirty power at my house that keeps blowing it? Nothing else has been effected.
Can a computer effect the charger? Please help! Still have 6 mos of applecare, but am tired of this. Would like to find solution.
The MBP's a late '08 15" unibody. I know I obviously can't (or at least shouldn't) use the Airs power supply with the MBP.
View 5 Replies View RelatedTried to wake my 24" white iMac from sleep yesterday and discovered that it was off. Pressed the button in back but no go. Unplugged and replugged, pressed the button and it fired up fine. Surfed a bit, then put it back to sleep.
Came back about 3 hours later and it was off again. Unplugged and replugged, pressed the button and nothing. Tried it a couple more times just to check, and no go.
Any ideas? I've had this computer for a little over two years. Bought it used and bought Applecare which expired on.... Nov. 16th. Beautiful timing or what.
6 of 8 processors at 100% for 24 hrs/day for nearly a week), my MacPro's "Power Supply 2" temperature suddenly rose to ~207 ?F (~95 ?C).I got a large external fan going through the desktop to bring the temperature down. I also tried to install smcFanControl to see if I could bump up the internal fan speed. Well, I could bump up THREE of the fans (I/O, CPU/Memory, and Exhaust), but it says that the PS fan is steady at just under 600 rpm, despite me cranking it up in the software to anything else (including the max, 2800, and anything less).
View 2 Replies View RelatedWill a 600W power supply from a June 2004 dual 1.8 G5 be compatible with a dual 2.3 early 2005 system (450W)? Are the connectors any different? Will a bigger power supply overload the system? I know that the 600W June 04 power supply can be used with a dual 2.7 early 05 machine (600W) despite a rubber grommet that the 04 doesn't have.
View 3 Replies View RelatedI have just ordered a xfx 4870 that will be placed into my mac pro 2006 (1.1). I dont have the infamous power cables from ati so i was wondering if it would be possible to use the power from the optical drive. i have two 6-pin pcie power cables that each connects to a 4-pin molex. i addition to these i have a 4-pin molex Y splitter.
With this setup i should be able to feed the card with power but is this dangerous or will the system be unstable? what will happen
My UPS is flaking out, and it's a really old one I got from work that was a 'server' class UPS.
I don't want to drop $999 on the thing, as that's what an equivalent of what I was using go for. However I want my battery to last more than oh, 30s so I hope to size it right.
Any experience from anyone running a UPS on one of these things? The UPS sites aren't much help and if the tech specs are to believed if it draws 12A at 120W that's a 1440W requirement for the power supply, and that seems a tiny bit high to me, but I might be wrong.
I'm running the 2.66GHz dual core, the ATI1900XL, and 4 500GB drives in it.
I need to replace the power supply in my Mac Pro (2008) but I'm stuck at getting the small cover off. I've removed the metal plate that was under the optical drives (POV when looking through the side).
But it seems there's a small cover for the power supply that's similar to the big processor cover for the liquid cooled G5 towers. I can't figure out how to remove that.
Does anyone have a link to a manual or take-apart guide for the Mac Pro?
Power supply was interrupted. Tried to turn on my mac. Just repeated the SOS code. Nothing comes up on the screen.
Info:
iMac, Mac OS X (10.4.1), Power supply interrupted
Why does my Macbook Pro say that for "best results" I must plug it in when restarting and installing updates?
View 1 Replies View RelatedI am trying to switch out mobos. I want to put a desktop mobo in a minitower case. But my understanding there is a jumper that can be changed to switch between the models. Has something to do with the power supply differences if I remember correctly. Anyone know where on the motherboard that would be located? in need to find it because currently using the desktop mobo in the minitower case it will not power on at all.
View 4 Replies View RelatedStep by step instructions for using an ATX 24-pin power supply in a Gigabit Ethernet/Digital Audio Powermac G4 (one way to do it anyway): First, know that to boot the G4s up, you MUST have at least +12V of power going to the G4's pin #22 spot (white wire) even with the computer turned off. This is called standby power (I didn't know what it meant until a few days ago). ATX power supplies generally only have a +5V SB power source which is not enough. You must use some method of getting the +12V to +28V standby power to the G4's pin #22. I will outline the method I used but there are others (ideally get a ATX power supply with +12V standby, but they are not so easy to find). I am typing this on my G4/533 with an Antec SP-500 power supply. Why do this? With an ATI Radeon 9800 256mb graphics card, three hard drives, a DVD drive, a SCSI card, a USB 2.0 card, a USB 2.0 hub with four devices attached, and a newly aquired G4/1.4 Ghz card (which meant two additional fans for cooling control), I figured the original power supply was overextended. So, here's how it can be done:
1. Make sure the ATX power supply you want to use fits your case and has the power cord hookup in the correct position (lower left corner).
2. Make sure the ATX power supply has a long enough motherboard harness, or else you will need to buy an extension (which you may want to do anyway to avoid mutilating the original power supply's wiring harness).
3. About three inches from the motherboard harness connector (same with all future cuts), cut the ATX wire #8 (gray). Tape the end of the gray wire going to the power supply. You don't use it for anything.
4. Cut wire #12 (orange).
5. Remove 1/2 inch of wire insulation from the stub of gray wire coming from pin 8 in the harness connector and from the long orange wire (that used to go to pin 12) that goes to the power supply and solder them together. Cover with heat shrink tubing (which you must put on before you solder) or electrical tape......
Mine went 'poof'
20"
I was wondering if theres an external similar to the Mypassport that runs firewire 400 or 800?
View 9 Replies View RelatedSo, I have the latest 2.5 G5 quad.
The power supply recently blew on it so I had the local Apple shop replace it. I brought her back home and powered her up for the first time and the fans are on full blast the whole time.
Usually the fans would be on high during start up and while shutting down...but they would ALWAYS slow down when OS X is loaded. Now they are on high all the time.
specs: 2.5 quad, 6.5 gb RAM, 2x 500gb HDD's, GeForce 7800GT, 10.5.6 (I know 10.5.7 is out...I'm installing it tonight, as it took over an hour to install on my iMac's)
I know I can just take it back to the tech, but if I can fix it with a simple setting then I'd like to try that first.
I tried the "search" box before making this thread. Would like to know if the power supply from a 2008 MacPro work on a 2006 MacPro. If anyone has tried this? My 2006 MacPro shut down suddenly and would not turn on. I use an APC UPS plugged on a power surge outlet. The Mac technician who examined the unit suspected it might be the power supply but Apple may not have in stock the power supply for the Ist Gen MacPro.
View 4 Replies View RelatedI've been experiencing the following problem with my late 2007 MacBook Pro: I can't use it on batteries. As soon as I disconnect power supply, it works for 10-15 minutes and switches off. Not sleeps, but suddenly turns off completely. The system battery indicator drops by about 10% (showing 85-90% battery charged), whereas 4 out of 5 LEDs are lit on the battery itself. After such a sunned switch-off, I'm not able to start again the laptop - it doesn't react on Power On button - like the battery wasn't inserted at all. Right after I plug on power supply back again, everything gets back to normal and I can use it normally, but still only if it's connected to the electricity.
View 3 Replies View RelatedHave a Power Mac G4 MDD - Apple genius bar looked at it and told me probably need a new power supply (shutting down at will and having trouble powering up but before that the computer was running well) and I'm not sure if I should get a used or new one on ebay or if you have a better idea. Can't afford a whole new system so want to resurrect this one.
View 3 Replies View Related
