Com 3

G

Guest

I have a unusual situation. I did a clean install of Win XPSP2. My mb is
ASUS K8N which has only one serial port. I have no add-in cards. Device
Manager shows only one com port (Com 1), however, I have noticed that when I
check properties on my internal modem, or run Hyperterminal, or set up my UPS
using Wndows Power Options, there is a choice between Com 1 and Com 3. Since
I have only one serial port, where is this Com 3 coming from and how can I
get rid of it, even though it is not listed under device manager. Thank you,
Bill
 
V

Vagabond Software

Bill43 said:
I have a unusual situation. I did a clean install of Win XPSP2. My mb is
ASUS K8N which has only one serial port. I have no add-in cards. Device
Manager shows only one com port (Com 1), however, I have noticed that when I
check properties on my internal modem, or run Hyperterminal, or set up my UPS
using Wndows Power Options, there is a choice between Com 1 and Com 3. Since
I have only one serial port, where is this Com 3 coming from and how can I
get rid of it, even though it is not listed under device manager. Thank you,
Bill

I believe COM3 *is* your internal modem. You may be able to change it to COM2 by altering the properties, but I believe the only way to get rid of the additional COM port is to yank the modem.

carl
 
J

JerryMouse

Bill43 said:
I have a unusual situation. I did a clean install of Win XPSP2. My
mb is ASUS K8N which has only one serial port. I have no add-in
cards. Device Manager shows only one com port (Com 1), however, I
have noticed that when I check properties on my internal modem, or
run Hyperterminal, or set up my UPS using Wndows Power Options, there
is a choice between Com 1 and Com 3. Since I have only one serial
port, where is this Com 3 coming from and how can I get rid of it,
even though it is not listed under device manager. Thank you, Bill

An internal mode contains a serial port on the card.

This may be a plug-n-play modem, in which case the com(x) number is dynamic
OR there may be physical straps on the modem to set the com port to a
particular IRQ and COMn.

In any event, you get a com port with every internal modem. They cannot be
separated.
 
R

Richard Urban

Don't go thinking you can outguess the operating system. It is a lot smarter
than you.

Every single plug in modem I have seen installed defaults to com3 - and they
work just fine. It is a "virtual" com port as opposed to a physical com
port. Physical ports are hard wired to your motherboard or an addin com port
card. Most PC's have com 1 and com2 hard wired. They are reserved for
devices plugged into THEM!


--
Regards,

Richard Urban

aka Crusty (-: Old B@stard :)

If you knew as much as you thought you know,
You would realize that you don't know what you thought you knew!
 
S

Sleepless in Seattle

"Most PC's have com 1 and com2 hard wired" should read serial port 1 and
serial port 2 as the resources can be changed between com1 through 4.
 
G

Guest

Thank you for this help

JerryMouse said:
An internal mode contains a serial port on the card.

This may be a plug-n-play modem, in which case the com(x) number is dynamic
OR there may be physical straps on the modem to set the com port to a
particular IRQ and COMn.

In any event, you get a com port with every internal modem. They cannot be
separated.
 
G

Guest

Thank you very much

Vagabond Software said:
I believe COM3 *is* your internal modem. You may be able to change it to COM2 by altering the properties, but I believe the only way to get rid of the additional COM port is to yank the modem.

carl
 
G

Guest

Thank you very much

Richard Urban said:
Don't go thinking you can outguess the operating system. It is a lot smarter
than you.

Every single plug in modem I have seen installed defaults to com3 - and they
work just fine. It is a "virtual" com port as opposed to a physical com
port. Physical ports are hard wired to your motherboard or an addin com port
card. Most PC's have com 1 and com2 hard wired. They are reserved for
devices plugged into THEM!


--
Regards,

Richard Urban

aka Crusty (-: Old B@stard :)

If you knew as much as you thought you know,
You would realize that you don't know what you thought you knew!
 
G

Guest

Thank you very much

Sleepless in Seattle said:
"Most PC's have com 1 and com2 hard wired" should read serial port 1 and
serial port 2 as the resources can be changed between com1 through 4.
 
R

Richard Urban

Right! I stand corrected (-:

--
Regards,

Richard Urban

aka Crusty (-: Old B@stard :)

If you knew as much as you thought you know,
You would realize that you don't know what you thought you knew!
 

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