Currently Being ModeratedJan 30, 2013 1:49 PM (in response to desertwest)
The flashing power light is an indication of memory problems. You may make them temporarily better by re-seating, but the memory problems will be back.
Your situation is dire. The way to proceed is not to swap. It is to remove everything not essential to getting a chime. Remove all hard Drives, all CD drives, all PCIe cards, all graphics cards, and all memory except one pair on one riser.
--No, measure the power at the Molex connectors at the CD readers looking for a bit over 5 Volts on red, a bit over 12 Volts on yellow, referenced to the black wires. If not there when the fans are on, your power is not good enough.
--Yes, add in the graphics card and see if you can get a picture.Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
Currently Being ModeratedJan 30, 2013 5:55 PM (in response to Grant Bennet-Alder)
Thanks for the reply Grant. I will try first thing in the morning and get back to you!
Currently Being ModeratedJan 31, 2013 6:47 AM (in response to desertwest)
Something wrong. Either it ain't a 3,1 2008 which by your specs I am sure of, or something else.
X1900 only works in pre-2008
you are also using FBDIMM 667s which are generally from 2006-7 also
And quad 3.0 is pre-2008.
WHAT does syst em profile header say "about this Mac"
2008 Apple Mac Pro "Quad Core" 3.0GHz dual Xeon (A1186-EMC2113)
8GB of Ram (4x: Samsung 2gb 2Rx4 PC2 -5300f-555-11-EO)
Graphic: Radeon X1900XT (512 VRAM)
Currently Being ModeratedJan 31, 2013 9:50 AM (in response to The hatter)
Hatter: not sure what you are saying. That the machine is pre-2008? Is that relevant to the problem... if so I'm not sure how to confirm the year. It won't boot up so i cant read the "about this mac" but I do know it is a 3.0 Quad and I did confirm the video card model as well as memory.
Grant: I pulled everything but one memory tray with one pair, and the main hd. Powered up: fans very quiet but not sure how to tell if it's working. Hd isn't making any noise.. just a slight rumble at the beginning. If I add in the graphics card, its fan comes on full speed. All the wires are black so I randomly checked dc voltage at the dvd's and am only getting 1v. Doesn't sound right but that's what the meter says with everything unplugged and machine on.
I'm wondering about the graphics card fan running full speed. Does this sound wrong or is it just a symptom of not getting info from the computer to slow down? Just wondering.
Currently Being ModeratedJan 31, 2013 9:51 AM (in response to desertwest)
It is not 2008. Can't use X1900, which you can remove and replace with Apple's ATI 5770.
Also 10.6.8 works better -- and w/o the X1900.
FBDIMMs fail over time. Get the ones from Amazon2x2GB FBDIMM DDR2 667MHz @ $35
Same for X1900http://www.xlr8yourmac.com/Graphics/X1900XT_Overheating/ATI_X1900_artifacts.html http://www.xlr8yourmac.com/Graphics/radeon_X1900XT/X1900XT_dust_buildup.html#sto rytop
They had to be pulled and cleaned every 3-4 months, dust bunnies and clogs and causes the fans and system to work harder and overheat.Mac Pro, Windows 8 Preview x64 3.2GHz
Currently Being ModeratedJan 31, 2013 10:02 AM (in response to The hatter)
Thanks Hatter! Just read the article above (on the X1900 overheating). Now that i think about it, I think I did see some of those mentioned pink particles (or something similar) just prior to the shutdown. If the card has "burned itself up", would that keep my machine from booting? Can it be as simple as replacing the video card and all might be well?
Currently Being ModeratedJan 31, 2013 11:17 AM (in response to desertwest)
Did you get the CHIME?Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
Currently Being ModeratedJan 31, 2013 11:33 AM (in response to Grant Bennet-Alder)
No chime. Only thing that happens is fans quietly come on (no video card installed).
Hatter: I checked the model number online and looks like
it's a 2006.
Currently Being ModeratedJan 31, 2013 11:39 AM (in response to desertwest)
The CHIME is created and played by Software after the first part of the Power-On Self Test has passed. If you have no chime, there is no point putting anything back in the machine -- you are going nowhere.
If you are still getting power-indicator flashing, you still have memory problems.
The Voltages at the Molex connectors are on the OUTER two leads, and the INNER two are (the same) ground. If you do not have a proper 12 Volts and 5 Volts, your Mac will not run.Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
Currently Being ModeratedJan 31, 2013 11:51 AM (in response to Grant Bennet-Alder)
Nope, no chime. The memory prob was corrected so no flashing. Power on, fans come on, power light is solid, and..... nothing. So with the power showing only 1v (at the dvd molex), should the machine even power on? Should I replace power supply? Where would you start?
Thanks for the help so far!
Currently Being ModeratedFeb 1, 2013 8:31 AM (in response to desertwest)
Well, I called the shop where I bought it and he told me to bring it to him. He played around with it and ended up giving me a different machine. Guess it's his problem now. So far so good with my new one! Thanks for the help everybody!!!