Your computer only supports a specific kind of chip. 4AllDeals and 4AllMemory have spent 12 years researching our cross references to bring you the best recommendation for YOUR machine. Buy with confidence!
Product Title: 4AllMemory 512MB DDR-266 (PC2100) ECC RAM Memory Upgrade for the Compaq HP Proliant BL40p
Parent Retsku: B009OQXYYU