| 
  | Frequently Asked Questions  | 49  | |
Table 5 Frequently Asked Questions (continued)  | 
  | |||
  | 
  | 
  | ||
Question | Answer | 
  | ||
  | 
  | 
  | 
  | |
How do I remove  | 1  | 
  | ||
the 3Com icon from  | 
  | Diagnostics program.  | 
  | |
my Windows  | 2  | In the   | ||
system tray?  | ||||
  | Enable Tray Control check box to remove the check mark.  | |||
  | 
  | |||
  | 3 Exit the program and the icon will not appear anymore.  | 
  | 
  | 
Which PCI slot  | 3Com PCI NICs, such as the OfficeConnect NIC, are  | 
should I use for my  | designed to work in any   | 
OfficeConnect NIC?  | slot 1. Normally, slot 1 is marked on the PC motherboard  | 
  | and is located closest to the computer power supply.  | 
  | Avoid any PCI slot next to an ISA slot. This is often a  | 
  | shared slot and does not support bus mastering. The  | 
  | NICs perform best in those slots that support  | 
  | |
  | Some PCs have three types of expansion slots: PCI, ISA,  | 
  | and EISA. PCI slots are usually white and shorter than the  | 
  | other expansion slots (see Figure 3 in Chapter 2). ISA slots  | 
  | are usually black. EISA slots are usually brown, and are as  | 
  | long as ISA slots. If you’re not sure what type of expansion  | 
  | slots your PC has, see your PC documentation for details.  | 
  | Also refer to your PC manual for information on which  | 
  | slots support   | 
  | 
  | 
Do I have to configure  | PCI is a   | 
the OfficeConnect NIC?  | time you only need to install the NIC in your PC; PCI does  | 
  | the rest. However, on some PCI computers, you may be  | 
  | required to configure the computer’s BIOS manually after  | 
  | installing your PCI NIC. Refer to your PC documentation  | 
  | for more information about your PC’s BIOS.  | 
  | 
  | 
What interrupts  | You should avoid using any interrupts used by ISA/EISA  | 
should I avoid?  | boards that do not properly support shared interrupts  | 
  | |
  | other devices or adapters in your PC support shared  | 
  | interrupts, then avoid using them.  | 
  | Avoid using the same interrupt as your local hard drive  | 
  | (normally IRQ 14 for IDE drives and IRQ 11 for most SCSI  | 
  | host adapters), because not all hard drives support shared  | 
  | interrupts at this time. Avoid using 9 because it cascades  | 
  | with 2.  | 
  | 
  | 
Does the OfficeConnect  | Yes, the OfficeConnect NIC supports   | 
NIC support  | at 10 Mbps and 100 Mbps.  | 
  | |
  | simultaneously in both directions (the PC is sending and  | 
  | receiving data at the same time).  | 
  | 
  |