I recently upgraded my 2.66GHz 4 core Mac Pro 2006 to a 2.66 GHz 8 core. I am using 667MHz DDR2 ECC fully-buffered RAM but I see that when new the 8 core model used 1066MHz DDR3 ECC SDRAM which is less expensive.
Is it advisable to install the faster memory, will I harm the machine by doing so? Is there any advantage other than cost because I still have the orignal motherboard so supect that the RAM will only operate at 667 MHz?
No yours needs DDR2, it does not support physically or from the cpu.
DDR3 needs Nehalem processors
You have to have FBDIMMs to fit your Risers
These are great and what I and others use -
Thanks Hatter, appreciate your reply.
That is a great price. As long as I buy a pair that meet Apple sepcs I assume it is OK to have a mixture of sizes and suppliers.
Presently I have 2 original 512 MB from Apple, 4 x 2GB from Trans Intl and 2 x 4 GB from Trans Intl. I want to switch out the smaller ones.
I Checked out the amazon RAM but they will not ship to Canada and amazon.ca does not have that RAM.
I will likely replace the 512s with 2x2GB from trans intl. they have worked well up to now and then I will have al from one supplier. . Yes, I noticed that the RAM in salts 1 and 2 was getting warm, 75 deg C and I bumped up the fan .