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HP Compaq dc7800 Series User Manual

HP Compaq dc7800 Series
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8-8 www.hp.com Technical Reference Guide
SYSTEM BIOS
8.6 USB Legacy Support
The system BIOS ROM checks the USB port, during POST, for the presence of a USB keyboard.
This allows a system with only a USB keyboard to be used during ROM-based setup and also on
a system with an OS that does not include a USB driver.
On such a system a keystroke will generate an SMI and the SMI handler will retrieve the data
from the device and convert it to PS/2 data. The data will be passed to the keyboard controller
and processed as in the PS/2 interface. Changing the delay and/or typematic rate of a USB
keyboard though BIOS function INT 16 is not supported.
8.7 Management Engine Functions
The management engine function of Intel AMT allows a system unit to be managed remotely
over a network, where or not the system is powered up or not
1
. The system BIOS can request the
management engine to generate the following alerts:
Temperature alert
Fan failure alert
Chassis intrusion alert
Watchdog timer alert
No memory installed alert
1.Assumes the unit is connected to an active AC outlet.

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HP Compaq dc7800 Series Specifications

General IconGeneral
ProcessorIntel Core 2 Duo, Intel Pentium Dual-Core, Intel Celeron
ChipsetIntel Q35 Express
MemoryUp to 8 GB DDR2 SDRAM
AudioIntegrated High Definition Audio
Form FactorUltra-slim desktop, Small form factor, Convertible minitower
Storage80GB to 500GB SATA HDD
GraphicsIntegrated Intel Graphics Media Accelerator 3100
Optical DriveDVD-ROM, DVD+/-RW
NetworkIntegrated Gigabit Network Connection
PortsUSB 2.0, VGA, serial, parallel, audio in/out
Operating SystemWindows Vista, Windows XP, FreeDOS
Expansion Slots1 low-profile PCI, 1 low-profile PCI Express x16
Power Supply240W

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