Compaq dc5100 - Microtower PC Frequently Asked Questions

10
Data Execution Prevention Tab - No XD/NX Processor
The following image shows the Data Execution Prevention tab on a system without an XD/NX-enabled
processor. Windows notifies the user that the system does not contain a processor capable of XD/NX, but
that software-enforced DEP is available.
NOTE: To prevent Windows XP SP2 from using DEP, set the operating system to /alwaysoff in the
BOOT.INI file.
Software-Enforced DEP
Software-enforced DEP is a set of DEP security checks built into Windows XP SP2 that can be used with
any processor that supports Windows XP SP2. Software-enforced DEP is a more limited form of protection
for the exception handling mechanisms in Windows. It is used when hardware-enforced DEP is not avail-
able, usually because the processor does not support XD/NX or is disabled in BIOS.

Compaq dc5100 - Microtower PC Specifications

General

Audio	Integrated AC'97 audio
Network	Integrated Broadcom NetXtreme Gigabit Ethernet
Operating System	Windows XP Professional
Power Supply	250W
Processor	Intel Pentium 4
Memory	Up to 4 GB DDR SDRAM
Storage	40 GB SATA
Graphics	Integrated Intel Graphics Media Accelerator 900
Optical Drive	DVD-ROM
Expansion Slots	1 PCI Express x16
Ports	audio in/out