Focuses on product features, setup, and locating external and internal connectors (front/rear ports and system board components).
9-pin COM ports and 25-pin D-Sub parallel port. 43c8358 Motherboard Manual
CMOS clear and password reset jumpers are documented in the "Hardware Maintenance" section of the HMM. Guides & Manuals - Lenovo Support Focuses on product features, setup, and locating external
Access the ThinkCentre User Guide via the Lenovo Guides & Manuals page. typically features the following hardware specifications: Form Factor: Micro-ATX (standard for A55/M55e series). Guides & Manuals - Lenovo Support Access the
Socket LGA775 (supports Intel Core 2 Duo, Pentium D, and Celeron D processors). Memory: Typically supports DDR2 SDRAM across 2 DIMM slots. Rear I/O Ports:
This is the most comprehensive technical resource. It includes diagnostic tools, field-replaceable unit (FRU) lists, and instructions for replacing parts like the system board, fan assembly, and PCI adapters. View the ThinkCentre HMM (PDF) at Lenovo Support .