How do you tell if you have hardware or software modem?

boshuter

Diamond Member
Feb 11, 2003
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Is there any easy way to tell if you have a hardware or software modem? Either by looking or in modem properties, softare, etc. ?
 

Megatomic

Lifer
Nov 9, 2000
20,127
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Perhaps an actual test would work. Open up the Task Manager and go to the Performance tab. When you go to dial-up you may see a significant spike in CPU usage. The older/slower the CPU the bigger the hit the modem has. I think you might also see some increased CPU usage while downloading a file that you might not see with a pure hardware modem.

Maybe it would be easier (but not as fun) to just go to the manufacturers website for the product and see what they say?
 

dullard

Elite Member
May 21, 2001
26,048
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I cannot answer the original question. But I did want to comment on this:
Originally posted by: Megatomic
Perhaps an actual test would work. Open up the Task Manager and go to the Performance tab. When you go to dial-up you may see a significant spike in CPU usage. The older/slower the CPU the bigger the hit the modem has. I think you might also see some increased CPU usage while downloading a file that you might not see with a pure hardware modem.
The CPU spike is ~5% on a 333 MHz Celeron. That test you describe will be very hard to do with any newer computer.
 

Megatomic

Lifer
Nov 9, 2000
20,127
6
81
I think you are right dullard. The modern CPU is powerful enough to handle dial-up modem chores easily. I don't have any other ideas short of getting the info straight from the manu.
 

RSMemphis

Golden Member
Oct 6, 2001
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There are two ways that I can think of:

1. How much was it? It you bought it for less than $40/$50, or it was included,it is a software modem. Period.

2. Try sending the AT style commands directly to the COM port (for instance with the Windows included program Hyperterminal. Only a hardware modem will respond to those on the com port, as far as I know. Just sending "AT" to the modem with a carriage return should give you a flurry of info for a hardware modem.

2b. If you have Linux, FreeBSD, if it works without the softmodem drivers, that is also a clear indication.

Chances are that if you don't know, it's a softmodem.


Link to AT commands for modems:
http://www.computerhope.com/atcom.htm
 

Tostada

Golden Member
Oct 9, 1999
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Why the bump? I think Memphis gave a pretty solid answer.

Generally speaking, if you had a modem with a hardware controller, you would know it, because you would've had to specifically spend about $60 for it. If it is not a modem you purchased yourself, it is a software modem. The only pre-built machines that come with hardware modems are usually the hardcore gamer machines from custom shops, and it would probably be specifically mentioned that it had a hardware controller.
 

superlie

Member
Dec 10, 2001
126
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In my country, I replaced my modem 2x due to lighting strike. Stick with brand name modem as it is less hassle.
 

Tostada

Golden Member
Oct 9, 1999
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I used to try and stick with brand name modems, but these days US Robotics modems are more of a hassle than most generic ones. I've had very good luck with anything with a Conexant chipset. Newegg used to have a Conexant winmodem that was $12 delivered that I got a ton of.