Integration Guide for the Boxed Intel® Desktop Boards D845WN and D845HV

Chassis

Platforms based on the Intel® Pentium® 4 processor in the 478-pin package do not require a modified chassis (e.g., with additional mounting holes). Chassis for platforms based on the Intel Pentium 4 processor must have either an ATX12V or SFX12V power supply and improved ventilation. We encourage integrators using ATX form-factor boards (D845HV) to choose a chassis that complies with the ATX 2.01 (or later) specification. Integrators using microATX form-factor boards (D845WN) should choose a chassis that complies with the microATX 1.0 (or later) specification.

Power Supply
The D845WN and D845HV boards require either an ATX12V or SFX12V power supply that differs from previous ATX and SFX power supplies, respectively. Both the ATX12V and SFX12V power supplies provide additional 12V processor current via a 2x2 pin connector that is required for proper operation.

The power management functions of the boards require a power supply with a minimum +5V standby current (+5Vsb) of 800mA. Intel highly recommends that you use a power supply with 1.5 to 2.0 A on the +5Vsb line. As more standby capable components are added to the platform, more standby current is needed to support these components.

Processor

The D845HV and D845WN boards were designed to support the Pentium 4 processor in the 478-pin package only. Table 1 below lists the current processor support for the D845WN and D845HV boards.

Table 1. Intel Processor Support for Desktop Boards D845WN and D845HV

Processor Family	Processor Speed	System Bus Frequency	Cache Size	BIOS Version
Intel® Pentium® 4	2.6 GHz	400 MHz	512 KB	P12 or greater
	2.5 GHz	400 MHz	512 KB	P12 or greater
	2.4 GHz	400 MHz	512 KB	P09 or greater
	2.2 GHz	400 MHz	512 KB	P07 or greater
	2.0A GHz	400 MHz	512 KB	P07 or greater
	2.0 GHz	400 MHz	256 KB	P04 or greater
	1.9 GHz	400 MHz	256 KB	P04 or greater
	1.8A GHz	400 MHz	512 KB	P07 or greater
	1.8 GHz	400 MHz	256 KB	P04 or greater
	1.7 GHz	400 MHz	256 KB	P04 or greater
	1.6A GHz	400 MHz	512 KB	P07 or greater
	1.6 GHz	400 MHz	256 KB	P04 or greater
	1.5 GHz	400 MHz	256 KB	P04 or greater
	1.4 GHz	400 MHz	256 KB	P04 or greater
Intel® Celeron®	2.2 GHz †	400 MHz	128 KB	P12 or greater
	2.1 GHz †	400 MHz	128 KB	P12 or greater
	2.0 GHz	400 MHz	128 KB	P12 or greater
	1.8 GHz	400 MHz	128 KB	P11 or greater
	1.7 GHz	400 MHz	128 KB	P11 or greater

†This desktop board and processor combination is under evaluation and not yet validated. Use of unsupported processors may result in improper operation, damage to the desktop board or processor, or reduced product life. Except as provided in Intel's Terms and Conditions of Sale for such products, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF THE INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. This information is based on current expectations are subject to change without notice.

System Memory

The D845HV and D845WN boards support four SDRAM* DIMM* sockets. A minimum of 32MB of ECC or non-ECC PC133 system memory is required and up to 4GB is supported.

Hard Drive

The boards support Ultra ATA/100 transfer rates. The 40-pin 80-conductor cable included with each board will support Ultra ATA/100 transfers.

I/O Peripherals

Peripheral Interfaces The boards each have a diskette drive interface, two PS/2 ports, two serial ports, and one parallel port. The boards also support up to seven USB ports (6 for the LAN sku), four routed to the back panel, two routed to the front panel, and one routed to the optional CNR.

Expansion Capabilities The D845WN board has three PCI slots, one optional CNR slot (shared with PCI slot 3), and one AGP connector. The AGP connector only supports the latest 1.5V 4X/2X graphics cards and not the 3.3V models. The CNR slot and PCI slot 3 are shared and cannot be used simultaneously. The D845HV board has five PCI slots, one optional CNR slot (shared with PCI slot 5), and one AGP connector. The AGP connector only supports the latest 1.5V 4X/2X graphics cards and not the 3.3V models. The CNR slot and PCI slot 5 are shared and cannot be used simultaneously.

Operating System

Windows* 98 Second Edition, Windows ME, and Windows 2000 support the D845WN and D845HV boards' ease of use, USB expansion, and power management features.