I purchased from an local supplayer a refurbished Precision T5500. Single CPU (QuadCore Intel Xeon X5570) with 8 GB (4x2GB) of ECC registered Ram, 1066MHz.
I upgraded memory with 4GB (2x2GB) and i populated all dimm slots, because in this way the dimm is populated correctly.
When i start the computer, in the morning, my machine runs about 2-3 minutes and after that freezes. I restart the machine and run without any trouble all day. If i remove 4 GB of Ram, from any slots, my machine starts and runs without problem. This fact occurs even if all drives are off, or if i run from a live cd.
I run every test that i found, including Ram extended test-8hours and everything is ok, without errors. The 2 memory of Ram that i upgraded are identical with the rest.
Please help!
