HP Compaq NC4010 Maintenance And Service Manual page 9

Model Naming Conventions (Continued)
8 TPM Security Module
9 RAM
10 Operating system
Maintenance and Service Guide
Table 1-1
HP Compaq Notebook nc4010
T = included
51 = 512 MB
P = Microsoft® Windows® XP Pro
Product Description
25 = 256 MB
1–3