NetMos Technology - support

Frequently asked questions...

Dear user;

NetMos Technology does not sell or distribute any add-on PCI cards. We are the manufacturer of the Nm9705CV, Nm9805CV, Nm9715CV, Nm9735CV, Nm9835CV, Nm9745CV, Nm9845CV and Nm9755CV semiconductor parts. We provide free software drivers to all board vendors.

NetMos Technology updates all of the drivers regularly. The latest drivers can be found on the web site at http://www.netmos.com/support_driver.html

The board vendors may or may not provide the latest driver with their product if the drivers were shipped to distributors prior to the latest updates.

These products are divided into two categories:

PCI plug and play without the re-mapping option to ISA legacy ports: Nm9705CV, Nm9735CV, and Nm9745CV products.

Some of the programs may not function with these products if they access only ISA legacy ports under DOS or NT 4.0 operating systems. Under Windows 95, 98, 98SE, Windows Me and Windows 2000, all programs should be functional since the Windows operating system re-maps the ports internally.

Special note for Nm9735CV users;

The current Windows 2000 driver does not support multi function features of the Nm9735CV. Only a single serial port is supported with this part.

PCI plug and play with the re-mapping option to ISA legacy ports are offered with the Nm9805CV, Nm9835CV, Nm9845CV, Nm9715CV and Nm9755CV products.

Our software drivers have the capability to re-map these products to ISA legacy ports for DOS, Windows 95, 98, 98SE and Windows Me only.

To re-map in DOS mode, place the NmDosIn.exe into Autoexec.bat file as NmDosIn.exe -a -r.

Please note; drivers can identify each product during the installation and re-mapping is done automatically.

General information:

Always uninstall the older version of the driver before installing the newer version.

Software written for legacy ports (Example: Mouse drivers), may not function properly with PCI devices since IRQ assignment will not be the same as legacy ports.

The BIOS can store up to 4 serial ports (COM1-4). Additional ports cannot be accessed if software does not provide the user with an option to specify non-standard ports like COM5-254.

Under Windows 95, 98, 98SE and Windows Me, all PCI serial port assignments start from COM5 and up. Windows 95, 98, 98SE and Windows Me reserve COM1-4 for ISA legacy ports. Under NT 4.0 these ports can start from COM1 and up.

The BIOS can store up to 3 parallel ports (LPT1-3). Additional ports cannot be accessed if the software does not provide the user with an option to specify non-standard ports like LPT4-254. Under Windows 95, 98, 98SE and Windows Me printer ports are assigned from LPT1 and up.

The user does not have any options to modify the port assignments under any operating system including interrupts. The motherboard BIOS has total control over the PCI address and interrupt assignments.

Manually reconfiguring the COM ports:

As with any modifications to the registry, it is recommended that a backup of the registry is made before making changes. Copy registry files (SYSTEM.DAT and USER>DAT) to a different subdirectory.

1. Be sure to disable the device that uses COM (1-4) in the machine BIOS.

2. Be sure that COMx does not appear in Device Manager under Ports (COM & LPT).

3. Run REGEDIT.

4a. In the path "My Computer\HKEY_LOCAL_MACHINE\Enum\NMMF
or
4b. In the path "My Computer\HKEY_LOCAL_MACHINE\Enum\NMENUM
or
4c. In the path "My Computer\HKEY_LOCAL_MACHINE\Enum\MF\CHILD0000,
find PCI&VEV_9710
Select and edit "PortName" to change "COM5" or "COM6" to "COM3" or "COM4", select and delete "ForcedConfig"

5. In the path "My Computer\HKEY_LOCAL_MACHINE\HARDWARE\devicemap\serialcomm, be sure to have the string COM 2-4, if not add it.

6. Close REGEDIT and run modem diagnostics in COMx.

Attention to The Windows Me users:

Windows 98 driver is written for both Windows 98 and Windows Me.

Checking COM and LPT configuration under Windows 95/98/98SE/Me:

Click on Start > Settings > Control Panel. Click on System Icon, select Device Manager Tab, scroll down to ports (COM & LPT), click on ports (COM & LPT), you will see installed NetMos ports, select one of the ports and double click. Select the Resources Tab for Input/Output (I/O) address and IRQ settings.

If a Yellow mark is displayed in front of the ports after restart, repeat the above steps and de-select "Use Automatic Settings" and restart the computer. This may happen with some motherboards and BIOS's.

Checking COM and LPT configuration under Windows NT4.0:

The Windows NT does not provide any information to the user regarding the port assignment and IRQ settings. Please follow the procedure below to see if the driver and card are installed properly.

Click on Start > Programs > Administrative Tools (Common)> Windows NT Diagnostics

Select the Services Tab, click on the Devices selection box, and scroll down until you see the following notes.

NetMos Multi I/O Parallel Driver Running "for parallel ports"

NetMos Multi I/O Serial Driver Running "for serial ports"

If it displays as "stopped", it means the driver did not see the card and it is not functioning properly.

Checking COM and LPT configuration under Windows 2000:

Click on Start > Settings > Control Panel. Click on the System Icon, select the Hardware Tab, under Device Manager section, select Device Manager box, scroll down to ports (COM & LPT), click on ports (COM & LPT), you will see installed NetMos ports. Select one of the ports and double click. Select Resources Tab for Input/Output I/O address and IRQ settings.

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