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HP Compaq dc7100 USDT User Manual

HP Compaq dc7100 USDT
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8-4 361834-001 Technical Reference Guide
BIOS ROM
8.3.2 Network Boot (F12) Support
The BIOS supports booting the system to a network server. The function is accessed by pressing
the F12 key when prompted at the lower right hand corner of the display during POST. Booting
to a network server allows for such functions as:
Flashing a ROM on a system without a functional operating system (OS).
Installing an OS.
Installing an application.
These systems include, as standard, an integrated Intel 82562-equivalent NIC with Preboot
Execution Environment (PXE) ROM and can boot with a NetPC-compliant server.
8.3.3 Memory Detection and Configuration
This system uses the Serial Presence Detect (SPD) method of determining the installed DIMM
configuration. The BIOS communicates with an EEPROM on each DIMM through the SMBus
to obtain data on the following DIMM parameters:
Presence
Size
Type
Timing/CAS latency
PC133 capability
Refer to Chapter 3, “Processor/Memory Subsystem” for the SPD format and DIMM data specific
to this system.
The BIOS performs memory detection and configuration with the following steps:
1. Program the buffer strength control registers based on SPD data and the DIMM slots that are
populated.
2. Determine the common CAS latency that can be supported by the DIMMs.
3. Determine the memory size for each DIMM and program the GMCH accordingly.
4. Enable refresh

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HP Compaq dc7100 USDT Specifications

General IconGeneral
MemoryUp to 4 GB DDR2 SDRAM
GraphicsIntel Graphics Media Accelerator 900
NetworkIntegrated Broadcom NetXtreme Gigabit Ethernet
Expansion Slots1 low-profile PCI
Operating SystemWindows XP Professional
ProcessorIntel Pentium 4
ChipsetIntel 915G
Storage40 GB
Optical DriveDVD-ROM
AudioIntegrated
PortsUSB 2.0, serial, parallel, PS/2, VGA, audio
Power SupplyExternal power adapter
Form FactorUltra-slim desktop

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