HP Compaq dc7900 USDT Technical Reference Guide

8-6 www.hp.com Technical Reference Guide
SYSTEM BIOS
8.4.1 System ID and ROM Type
Diagnostic applications can use the INT 15, AX=E800h BIOS function to identify the type of
system. This function will return the system ID in the BX register. Systems have the following
IDs and ROM family types:
NOTE: For all systems, BIOS ROM Family = 786G1, PnP ID = CPQ0968, and Subsystem vendor ID = 103Ch.
The ROM family and version numbers can be verified with the Setup utility or the System Insight
Manager or Diagnostics applications.
8.4.2 Temperature Status
The BIOS includes a function (INT15, AX=E816h) to retrieve the status of a system's interior
temperature. This function allows an application to check whether the temperature situation is at
a Normal, Caution, or Critical condition.
Table 8-3
System ID Numbers
System (Form Factor) System ID
Subsystem
Device ID
USDT 3033h 3036h
SFF 3031h 3034h
CMT: 3032h 3035h

HP Compaq dc7900 USDT Specifications

General

Processor	Intel Core 2 Duo, Intel Pentium Dual-Core, Intel Celeron
Chipset	Intel Q45 Express
Network	Integrated Intel 82567LM Gigabit Network Connection
Form Factor	Ultra-Slim Desktop (USDT)
Audio	Integrated High Definition Audio
Memory	Up to 8 GB DDR2 SDRAM
Storage	SATA Hard Drive or Solid State Drive
Graphics	Intel Graphics Media Accelerator 4500
Optical Drive	DVD-ROM, DVD+/-RW
Ports	USB 2.0, VGA, DisplayPort, serial, parallel, PS/2
Operating System	Windows Vista, Windows XP
Power Supply	135W
Expansion Slots	1 low-profile PCI Express x16, 1 low-profile PCI