Memory speed differs from chip
I just purchased a used Mac Pro. The specs are as follows: Dual 6 core 2.4GHz Xeon. It came with 24 Gbs of memory but the model of the memory chip comes up in system report as: 1066MHz DDR3 ECC SDRAM. I checked the specs of the model number, and I do have the original box that has the same serial number on it so I'm pretty sure this is all legit. The specs for the memory chips listed for this machine are 1333MHz DDR3 ECC SDRAM. So I thought maybe they added the worng memory chip. Opened up and sure enough, I pulled out four 2Gb hynix chips withe following written on them: 2Gb 1Rx8 PC3-10600E-9-11-D1. And on the next line: HMT325U7CFR8C-H9 TO AB 1229. I'm not sure if these are or arent; 1333MHz. I looked at the other four 4Gb chips and the were very clearly listed as the 1333MHz DDR3 ECC SDRAM. So I removed what I thought were the offending chips and thought my memory would come up as 1333MHZ - it did not. It is still reading 1066MHz. I opened the amchine again and inspected each chip and they all read 1333MHz. What could be wrong here? The original specs on a base model of this machine absolutely call for 1333MHz - but they also said it comes with only 12Gbs of memory. This machine has 16 od the 1333MHz and 8 of I'm not sure. Does it need to be reset once it has used 1066MHz? I assume it down-clocked itself relative to the incorrect chips but now that they have been removed, why doesn't it read as it should? Any ideas? Thanks.
Mac Pro, OS X Mavericks (10.9.1), 16 GB 800 MHz DDR2 FB-DIMM
