HP 381803-001 - System board assembly - With two single-core heatsinks, two dual-core heatsinks, and LED board - For Dual-Core AMD Opteron processor support Retail
HP 874737-001 - System board assembly with AMD Opteron 2-core X3216 Accelerated Processing Unit - 1.6GHz, 15 watt thermal design power - Includes the system board attached to the tray, heatsink, rear USB EMI shield Retail
HP 874738-001 - System board assembly with AMD Opteron 4 core X3421 Accelerated Processing Unit - 2.1GHz,35 watt thermal design power - Includes the system board attached to the tray, heatsink, rear USB EMI shield Retail
HP 441249-001 - System I/O board (motherboard) - Supports AMD Opteron and select AMD Athlon 64 processors - Includes base pan assembly, alcohol pad, and thermal grease syringe - Processors must be the same spare part number Retail
HP 241430-001 - Motherboard (system board) - Includes 1.06GHz processor and heat sink - For Europe Retail
