3Com 155 PCI manual Driver Installation Requirements, Hardware Requirements, Memory Requirements

3-2 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

Driver Installation Requirements

Please confirm that the following requirements are met before you install and configure the 3Com ATMLink NIC Windows NT network driver.

Hardware Requirements

■Computer with Intel®-based CPU and bus master PCI bus, running Microsoft Windows NT version 3.51 or 4.x

■3.5-inch floppy disk drive

■At least one 3Com ATMLink NIC installed in the system

Memory Requirements

Use the following formula to determine the Windows NT memory requirements in megabytes of RAM:

(16 x Frame_Size) + [(No. of NICs –1) x (No. of ELANS)]

where:

Frame_size = 1 When the maximum frame size is 1514 bytes

Frame_size = 2 When the maximum frame size is 4542 bytes

Frame_size = 4 When the maximum frame size is 9232 bytes

No. of NICs = The number of ATMLink NICs installed in the computer

No. of ELANs = The number of ELANs on the NIC with the most ELANs

When NICs with different maximum frame sizes are installed in the same computer, use the larger Frame_Size value.

Round up the result to the first integral multiple of 8.

Most Ethernet ELANs use a maximum frame size of 1514 bytes. Token ring ELANs typically use a maximum frame size of 4542 or 9232 bytes. See Table 3-1 for more information on the Maximum Frame Size configuration parameter.