How about the logic board reset button? Worth a shot.
Tried. Sitting at the Genius Bar now waiting my appt.
How about the logic board reset button? Worth a shot.
Whoa man, that really sucks !Well Apple won't even look at it.
Whoa man, that really sucks !
I'm just reading through the last couple of pages, getting caught up, and saw the trouble you were having.
I can't believe Apple won't even look at it, did they come right out and say it was too old ?
Do you get anything at all when you push the power button on the front ?
A click, or any sound from an optical drive trying to power up ?
It is possible your power supply gave out, do you have a volt meter ?
A quick check is to see if you have +5VDC, and 12VDC on the optical drive power connectors.
- Jay
I do have a PSU tester some where I think. They said he because it is a "vintage" machine they can't look at it at all.
There are no noises or anything from the computer when the power button is pressed. No lights either.
Does sound like a PSU issue, although Have you tried removing/reseating your RAM?
It's been a long time since I've had one of these supplies open, but there may be a "soldered in" fuse inside the power supply itself.
It's not meant to be user serviceable, but I have clipped a blown one out, and soldered a new one in before.
If you remove the power supply just be careful, there are some capacitors inside which can hold a charge, even if it has been unplugged for a while.
You can disconnect everything to check it, but if it does come on, don't run it too long unloaded.
Also I've seen the front panel switches get worn out too, that can be checked visually first, and then with an Ohm meter to be 100% sure.
Hopefully this helps.
- Jay
Well, most of the Macs I used to work on were medical workstations that stayed on 24/7, and were only shut off to re-boot or repair.I would suspect that the front switch would start working intermittently as it got worn out rather than to just stop functioning all together.
Well, most of the Macs I used to work on were medical workstations that stayed on 24/7, and were only shut off to re-boot or repair.
I have seen the front panel switches on those fail suddenly, so it may be worth checking.
Maybe try holding the switch down while wiggling the button piece side to side a bit, that little switch assy. is kind of flimsy.
Most likely, it sounds like it may be the power supply itself.
You said you got no voltage on the Molex power connectors for the optical drives, there was no voltage on any of the pins ?
It is kind of a pain to get the front fan assy. out of the way to check the switch on the front panel pcb but it can be done, but the power supply isn't too bad to replace.
I do still have a pdf service manual for the 1,1 / 2,1 models if you want me to email it.
- Jay
Yea there is a fuse inside but I am not going to attempt to clip it off the board and solder a new one on. I'll mess with the power button more and I will PM you with my email address for that service manual. The local certified apple repair place charges a flat rate of $129 for labor plus any parts. A new PSU can be had for about $99 on ebay. One guy on this forum said his university sells 1,1 mac pro for $50... might hit him up, lol, and just yank the PSU and put it in mine.
I have the service manual also Henn....I can send it right now if necessary.
I got it from thebug already. Thanks though. Going to use my kids hackintosh for now.
Hennesie2000 ;;; Try removing the 2 pin wire from the power switch to the motherboard. Then short those 2 pins with a screwdriver momentarily and see if it turns on.
if it does then you may have a dirty or bad power switch. Good luck!
First of all, thanks for all the works to keep the Mac Pro alive!
With all the different versions of the boot.efi, which one is the best to use?
I am running Mac Pro 1,1 (mod to 2,1) with 2x x5355. OSX Maverick with boot.efi works perfectly and I would love to upgrade to Yosemite ASAP.
Thanks!
For all I have reeded, the efi method, the chameleon method is for being able to make a "clean" installation, isn't I't??
You either haven't read enough or you've failed to understand what you've read. You can't install Yosemite to a drive of a supported computer, next move that unmodified drive to an unsupported computer and expect it to work. It won't work.
Naturally, you can MODIFY the Yosemite installation in that drive (such as replacing boot.efi) and boot Yosemite on an unsupported computer (provided it has a 32-bit EFI but is 64-bit capable). Or you can boot the unsupported computer with Chameleon/Clover and use the unmodified drive to boot Yosemite in the unmodified drive (provided the computer is 64-bit capable).
Wish me luck¡¡¡¡