HB52E649E12-A6B/B6B 512 MB Registered SDRAM DIMM 6.
Elpida Memory
HB52E649E12-B6B - 512 MB Registered SDRAM DIMM 64-Mword 72-bit/ 100 MHz Memory Bus/ 1-Bank Module (18 pcs of 64 M 4 Components) PC100 SDRAM
HB52E649E12-A6B/B6B 512 MB Registered SDRAM DIMM 64-Mword × 72-bit, 100 MHz Memory Bus, 1-Bank Module (18 pcs of 64 M × 4 Components) PC100 SDRAM E00.
