Guaranteed compatible upgrades for:
IBM/Lenovo ThinkCentre M55e 9642, 9644, 9645-xxx
System Specifications
Maximum Memory:
- 4GB
Expansion:
- 2 Sockets
Standard Memory:
- 256MB (Removable) or
- 512MB (Removable) or
- 1GB (Removable)
CPU/Chipset:
- Intel Pentium 4 Intel 946GZ
- Intel Celeron D Intel 946GZ
- Intel Pentium D Intel 946GZ
- Intel Core 2 Duo Intel 945GZ
Bus Architecture:
- PCI; PCI Express; SSD - SATA 2.5-inch 9.5mm
Mfr's System P/N's:
- 6491-xxx; 9642-xxx; 9644-xxx; 9645-xxx
Upgrade Path:
- Virtually any configuration up to 4GB can be reached using any combination of 512MB, 1GB and 2GB modules.