I've got an SE7501HG2 board in a server that currently has (unknown make) 4x1GB DDR266 ECC Registered DIMMs installed. The board has three banks, so I'd like to install another 2x2GB.
The following statement appears in the technical specs document for the board:
Note: Intel does not test, recommend, or support mixing of memory types within the same server system. Functionality issues may occur if mixed memory types are installed in the same server system. Intel recommends that memory modules of identical size, type, banking and stacking technology, and vendor are installed in each server system. Intel will not provide support for issues encountered when mixed memory configurations are in use.
Now my gut tells me that this is just one of "those things" they always say to minimize the chance of strange little glitches. The memory I'll add will be from Crucial or some other well-known vendor and be specifically compatible with the board. If this registered stuff was cheaper I'd just replace the existing DIMMs, but at $150+ for 2GB I'd rather just add more.
I'm just reaching out to you guys in case somebody has actually had a problem doing this. Thanks.