Bad news guys...The ram is not working in my Mac Pro 4.1 early 2009 2 X 2,26 ghz, dual quad cores cpu`s.
The ram I tried is First Choice Memory, ddr3-1333 4 gb 256Mx8 ECC DIMM PC3 10600.
This memory was bought from THOMANN.DE
Here is what I did:
I pull out all previous memory, 10 gb 1066 ddr3 pc8500
1. I put in ram sockets 1 and 5 the new memory..Result : I hear the Mac Sound, while booting, but the boot freezes and shows a grey Apple logo on almost white background.
2. I put in ram sockets 2 and 6 the new memory..Result : I hear the Mac Sound, while booting, but the boot freezes and shows a grey Apple logo on almost white background.
3. I put in ram sockets 3 and 7 the new memory..Result : The mac keep restarting 2 times, showing some KELLER errors very fast, and then freez again on booting with that Apple logo on background.
4. I put in ram sockets 4 and 8 the new memory..Result : No action from Mac Pro, no monitor displaying any info, just the WHITE POWER LED keep blinking at about 1 second intervals.
My MAC PRO has the following specs:
Mac Pro MB535B/A
Mac pro 4.1 early 2009, 2 quad cpus of 2,26 ghz each, 640 gb harddrive, and 2 Nvidia Gforce gt120 cards.
Should I maybe do something in BIOS after new memory installed? Some tweaks ? Any info will be more than welcome.
Thank you guys
respect
=Michael=