HP DM4 - Manual (Page 12)

Supports battery fast charge √
9-cell (100 Whr) 3.0 Ah Li-ion battery √ √
6-cell (62-Whr) 2.80Ah Li-ion battery √ √
6-cell (55-Whr) 2.55 Ah Li-ion battery √ √
AC Adapters
65 W AC adapter with Smart-Pin DC connector √
90 W AC adapter with Smart-Pin DC connector √
Security Kensington Security Lock √ √
Fingerprint reader with Digital Persona Software
Support √ √
OTP (VeriSign) support √ √
Intel AT-p ready support √ √
Operating system Preinstalled:
Microsoft Windows 7 Professional (32 and 64 bit) √ √
Microsoft Windows 7 Home Premium (32 and 64
bit) √ √
Microsoft Windows 7 Home Basic (32 and 64 bit) √ √
Microsoft Windows 7 Starter (32 bit), (No support for
HDD 320 GB) √ √
FreeDOS √ √
RedFlag √ √
Serviceability End-user replaceable parts: √ √
AC adapter √ √
Battery (system) √ √
Hard drive √ √
Memory module √ √
Optical drive √ √
Mini-card device √ √
4 Chapter 1 Product description