HP 128MB 100MHz Registered ECC SDRAM Memory Module (313615-B21) is a server memory module designed for compatible Compaq/HP ProLiant systems, including the ProLiant 1600, 1850, 3000, and CL1850. It provides 128MB of SDRAM operating at 100MHz with ECC and Registered memory support, making it suitable for reliable memory expansion in supported enterprise server environments. HP documentation identifies 313615-B21 as a 128MB 100MHz Registered ECC SDRAM DIMM memory kit.
- Part Number: 313615-B21
- Manufacturer: Compaq / HP
- Capacity: 128MB
- Memory Type: SDRAM
- Memory Speed: 100MHz
- Memory Standard: PC100
- ECC: Yes
- Registered: Yes
- Form Factor: DIMM
- Pin Count: 168-pin
- Voltage: 3.3V
- Module Configuration: 1 × 128MB
- Application: Server Memory
- Compatible Systems: Compaq/HP ProLiant 1600, ProLiant 1850, ProLiant 3000, CL1850 and other supported systems
- Memory Architecture: Registered ECC SDRAM
- Spare Part Number: 317756-001
