The T410 uses a dual docket motherboard with LGA 1366 triple channel CPU's.
If you only have one CPU installed then:
- you only can use the DIMMs sockets connected to that CPU.
- Best performance will be with 3 DIMMs installed since the CPU supports triple channel access.
- All DIMMs must be of the same type:
All DIMMS used at the same speed. (In your case 533 MHz for the -1066 modules)
All DIMMs must be registered or unregistered.
All DIMMS must use ECC. (See manual page 33). Regular non-ECC modules are not supported.
If you have two CPUs installed then both have their own (local) memory.
You will need to install them in a very specific order, as show in this part of the manual:
Most of the rules which applied to the single CPU setup also apply here, though you might get away with running the -1333 modules at -1066 speeds.
Also note that if you enabled memory mirroring then you must have identical memory configuration in Channel_0 and Channel_1 and not have memory in Channel_3.