I got a T610 with 2x E5530.
All the memory would be removed and replace with
8x 8GB Module - DDR3L 1600MHz
I read the T610 supports 1333 Mhz only and Standard voltage DIMMs.
1. Can the T610 support 8x 8GB Module (DDR3L, 1600MHz, ECC, CL11, 1R, X4, 1.35V, Registered, DIMM, 240-pin)
According to Crucial it will work:
It either will downgrade speed appropriately, or a later BIOS version added support for it.