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modem problem

Posted on 2001-06-06
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Last Modified: 2010-04-27
I have an external usr 56k message modem connect to my pc. Its automaticaly detected and all the driver is install propaly, also a proper phone line(with a dialtone) is connected to the jack. But everytime i try to connect to the internet, the dailer just report that "there is no dialtone and please check the cable." both win 2000/98 having the same problem.

Then i borrow an internal modem and install to my pc. all the installation process is ok. But the internal modem is having the same result, "no dialtone" when i try to dial.

I didn't play any overclock on any path of my hardware.
i tried to dial the modem without waiting for the dailtone but the result still the same.
I tried reinstall the win98, but it still wouldn't dail.
The line and the phone is connect to the modem in the RIGHT socket.
No "!" or "X" on my device manager.

spec:
dual OS windows 2000 and windows 98
pentium III 667
Abit motherboard
128MB ram
40GB harddisk
diamond stealth 3 display

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Question by:Heliumyap
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by:slink9
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Do other things work on this port?  I wouldn't think this to be the problem since the modem is detected but you never know ...
Have you tried the modem on another computer to verify that the modem is actually working properly?
Have you tried a different phone cable?
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by:Heliumyap
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the modem work like a plane if connect to other computer
and i can communicate with my 68HC12 micro-controler with the same port
i haven try a different phone cable yet..but i can hear a tone from my phone and already make hundreds of calls with the same phone....
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by:Dufo G. Belski
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Do you have your phone and modem hooked up together (in other words, does the phone line come out of the wall, go to the modem, and another line go from the modem to the phone)?  If so, forget my idea.

But if you have a splitter so that the line comes out of the wall, goes to the splitter, and then separate lines go to the phone and modem, then make sure the line is plugged in to the modem is in the right jack.  It should be in the one that says "To Line".

Or it could a cable, as suggested above.
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by:slink9
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If you take a look at your system settings (Start-Settings-Control Panel-System) do you see any Xs or !s?  It sounds like you have and IRQ or some other conflict with the modem.  System settings should indicate if there is a problem like that.
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by:Heliumyap
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phone and modem is hooked up together.
and there is no "?" or "!"
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by:Heliumyap
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my system setting is clear without any error showing. This is the hardest problem i ever face since i have use the computer.
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Author Comment

by:Heliumyap
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my system setting is clear without any error showing. This is the hardest problem i ever face since i have use the computer.
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Author Comment

by:Heliumyap
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my system setting is clear without any error showing. This is the hardest problem i ever face since i have use the computer.
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Author Comment

by:Heliumyap
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my system setting is clear without any error showing. This is the hardest problem i ever face since i have use the computer.
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by:slink9
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Go into Start-Programs-Accessories-Communications-Hyperterminal and set it up to connect to that com port.  If you type at do you get an OK back?  If you type atdt18005551212 does it start to dial?
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by:Heliumyap
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my system setting is clear without any error showing. This is the hardest problem i ever face since i have use the computer.
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by:slink9
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okay ... your system is clear, but it seems to have a stuttering problem!
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by:Heliumyap
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my system setting is clear without any error showing. This is the hardest problem i ever face since i have use the computer.
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by:rhody94
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Heliumyap, you need to actually respond the slink9's suggestions.  Try using MSWord & spell-checking your responses, too.  The Hyperterminal test is probably your best bet.  Also, what is the modem's error code?
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by:Dufo G. Belski
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You said "i tried to dial the modem without waiting for the dialtone".

Do you EVER hear a dialtone before it starts to dial?  If not, reconfigure your dialer properties or whatever it is  you're using, and add a few commas before the phone number.  This will pause the dialer long enough for the modem to pick up the dial tone.
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by:krytical
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If pausing it wont work (which I think it should too) you can manually set it to "wait for dialtone before dialing" in the modem properties.

Start Menu > Control Panel > Modems > Properties *** (see note) > Connection Tab

!!Also you want to run a  Diagnostics on the modem and echo the reponse here. To do the Diagnostics just:

Start Menu > Control Panel > Modems > Diagnostics tab > More Info on the port that your modem is installed too

*** Note: If you have more than one modem installed, or windows98 lists more than one in the Modem Control Panel, you may want to check your Dialer in "Dial Up Networking" to make sure it is set to the right one
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by:1175089
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Try to write ATX3 in Control panel->Modems->Properties->Connection->Advanced->Extra settings /For Win98/
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by:rayt333
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Something already mentioned but no reply back, Make sure the line from the jack is in the correct port on the modem, with most when you are using the modem to dial out it disconnects the port going to the phone out jack.
If you have these backwards then modem will not work.
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by:pbessman
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If you don't hear the modem trying to dial while you have handset to your ear, you may need to make sure it is plugged in.  I know it is straight forward but try holding both ends of phone cord in your hand to make sure you have the "right" one.  I have seen people spend hours chasing the wrong phone line.  Perhaps, it may not be seated well in the plug.  Check these variables and let us know what happens.
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by:pbessman
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Rayt333 I have seen them work if reversed but just slow.  Most modems seem a bit forgiving in that aspect.  The line in and the phone connectors on many systems can be swapped and still function.  The phjone jack is simply a pass-through connection which is always one whether the modem is on or not and since they are somewhat asynchronous any way you would still hear stuff on the line.
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by:rasaraja
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Hi !

Go to control panel->modems->properties->connection->advanced->extra settings.
In the text box write this "ATX3" without the quotes.

The problem u are having is because the modem is trying to dial quickly, before the dila tone arrives.So it says "No Dial Tone".When u write ATX3,it dials without detecting for the dial tone and so it is able to dial.Hope that solves u'r problem,
rasaraja
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by:slink9
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hey rasaraja, how about changing your answer to a comment.  It is an exact reiteration of a comment above.  Please read the tips on comments versus answers below and follow them.
heliumyap, please reject the answer and post an update to your question.
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by:Heliumyap
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Alright, let me explain the situation again.
The Line is connect to the modem and the phone is also connect to the modem as well and the position is 100% right.
When i press connect on the dail-up window, the offhook LED lights up (external modem), but no dialtone is heared, then the dail-up program just pop up a window saying "no dail-tone, please check the line". But, im using the phone to call alot of people already....

i tried reinstall my win98, but the end result still the same.
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by:slink9
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have you tried talking to the modem through hyperterminal?
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by:pbessman
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You should check to see that the Line is connected to the line from the wall and the phone is connected to the phone.  As a pass through device you will be able to make calls even when your modem can't.
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by:Heliumyap
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nope, i didn't try any hyperterminal.
How to use it?
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by:Heliumyap
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nope, i didn't try any hyperterminal.
How to use it?
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by:Heliumyap
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nope, i didn't try any hyperterminal.
How to use it?
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Author Comment

by:Heliumyap
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nope, i didn't try any hyperterminal.
How to use it?
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Author Comment

by:Heliumyap
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nope, i didn't try any hyperterminal.
How to use it?
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by:slink9
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Go into Start-Programs-Accessories-Communications-Hyperterminal and set it up to connect to that com
port.  If you type at do you get an OK back?  If you type atdt18005551212 does it start to dial?
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by:Heliumyap
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ok, i'll try that once im at home.
If im getting OK back after typing at, and its still not dailing if the "atdt18005551212" is typed, what else i can do?
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by:slink9
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If you get back the OK then it is talking to that com port.  It should dial the number.  If it doesn't then the modem may be bad.  Have you tried this modem on another computer?
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by:Heliumyap
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ok, i'll try that once im at home.
If im getting OK back after typing at, and its still not dailing if the "atdt18005551212" is typed, what else i can do?
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by:slink9
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Are you hitting the refresh button?  That could be why you are getting multiple posts.
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Author Comment

by:Heliumyap
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ok, i'll try that once im at home.
If im getting OK back after typing at, and its still not dailing if the "atdt18005551212" is typed, what else i can do?
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by:rayt333
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First thing you can do is to QUIT with the reload button, at the top of the question, Right under where it says "Hardware (General) Question" there an option on the far right side "reload question", PLEASE use that to reload the question.

When you use the Browser RELOAD then you repost the same comment over and over and over and over and over, well you should get the idea.
Thank you
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by:rayt333
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Can you test this modem with another computer to make sure it does in fact work?
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by:Heliumyap
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ok, i'll try that once im at home.
If im getting OK back after typing at, and its still not dailing if the "atdt18005551212" is typed, what else i can do?
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by:Heliumyap
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ok, i'll try that once im at home.
If im getting OK back after typing at, and its still not dailing if the "atdt18005551212" is typed, what else i can do?
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by:rid
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Possible diagnostic method: Go through normal motions for dialling with the computer. When you hit whatever button you should hit to start the process, lift the phone receiver at the same time. Listen for a dialtone. If you can hear a dialtone, and the modem still complains about "no dialtone" you have a problem... If the modem can dial when the phone is off the hook, something may be wrong in the line connection to the modem. Try an entirely new cable between wall connector and modem.
Regards
/RID
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by:pbessman
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The phone you are referencing is coming from the phone port on the modem?  Or are you using a line splitter at the wall.  From your comments I assume you are using a phone using the modems pass through line.  If not, for testing purposes you should be.  Do you have a two line system at your home?  Maybe one of them is not working.  DId you get the new AT&T digital phone service or the like from another carrier.  If so, your problem is not that uncommon.  I worked on a contract with AT&T as a computer tech for @home installs and for modem swaps when people changed their phone service.  If you are such a person with this type of issue, call your carrier.  With AT&T the people we "fixed up" got 3Com modems to replace the respective type they had.  We had to get all types too.  We used everything from ISA to USB.  I have seen some issues with some modems relying on certain connections being made.  Some of the systems I have worked with require that either the center two connectors are working or it wioll not function but will still pass through to phone.

If none of the above apply... Has this modem ever worked where it is presently?  Perhaps, if it never has worked it's not too late to return it or at least take it to where you bought it and have it checked out.
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by:pbessman
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"No "!" or "X" on my device manager."


Out of curiousity, did you have to do anything so that you don't have error messages?  Have you "doctored" your system by assigning resources?  If so, you may have assigned your modem to a nonuseable port on your computer.

Also, if you open the control panel and double click on the network icon is there a "dialup adapter".  IF not you may need to load some software.  Do you already have your ISP software loaded to your machine?  What ISP do you use.  If it is AOL have you had the AOL software search for a new way to connect yet?
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by:pbessman
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"No "!" or "X" on my device manager."


Out of curiousity, did you have to do anything so that you don't have error messages?  Have you "doctored" your system by assigning resources?  If so, you may have assigned your modem to a nonuseable port on your computer.

Also, if you open the control panel and double click on the network icon is there a "dialup adapter".  IF not you may need to load some software.  Do you already have your ISP software loaded to your machine?  What ISP do you use.  If it is AOL have you had the AOL software search for a new way to connect yet?
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by:pbessman
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Just kidding!
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by:pbessman
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It appears the system is slow to respond and if you click on the submit button before the server has accepted the first request it will send multiples.
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by:slink9
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Since the statement is that the modem was detected and set up automatically, I was thinking that the IRQ and other settings must be correct.  Could they be incorrect and still get PnP setup of the modem?
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by:rid
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This was external modem, wasn't it? System resources used would be the ones assigned to COM port in question, and I don't think there's anything indicating a resources clash. Still it would be nice to know what the modem answers when given an "AT" input, and also what happens if dial command is given with a terminal program. If it sits on a normal COM port, testing can be carried out in DOS mode as well (if the modem has a speaker it helps...). At the C: prompt type:
copy con comX
atdt 12345
<ctrl>+<Z>
with <Enter> after each line. X is of course the port in use. The speaker should let you know what happens. Dialtone and dialling sonds heard - OK. Error message - port not available or disabled. No reaction at all - possibly serial connection faulty. Modem lights flicker but no dialtone - possibly a defect in modem to line connection.
Regards
/RID
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Expert Comment

by:chandran_71
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try changing the data cable between modem and system

Ravi
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by:slink9
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Try changing your proposed answer to a comment since it has already been suggested.  Try reading the suggestions below about posting answers versus comments.
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by:Heliumyap
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How many times i have to mention that my phone is connect to the modem but NOT though splitter!

**i try my modem on other computer and it CAN connect.
When back to my own PC, it wounldn't connect anymore.**

i never change any resource/IRQ/ I/O address...nothing had changed before.
I reinstall my computer by format the old one with new empty win98 but the problem still the same.
I try typing at on hyperterminal and an "OK" message comes out, when i type atdt17813204723, the offhook LED lights, but its not dialing, then the hyperterminal reports that there is no dialtone.
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by:Heliumyap
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oh...i borrow my friend's internal modem and install to my pc. The problem still the same. the internal modem is not dialing as well.
i was wondering there base phone is faulty....
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by:Heliumyap
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the only thing i never try is borrow others pc to connect at my home or
i bring my pc to connect at other place.
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by:slink9
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You said you did a reinstall.  Did you happen to do a SETUP /P f?  This resets the registry without (normally) affecting the installed programs.
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by:Heliumyap
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i formated my harddisk....therefore i though away all the other program with a clean and empty windows. But still, the modem still can't detect the dialtone.
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by:slink9
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This is baffling.  Have you tried using different com/IRQ combos.
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by:Heliumyap
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im baffling? for what!  i only have one com port (com 1) there should be another (com 2) but its space already taken by the onboard display card.
and the update is i borrow my friend's laptop and connect with my modem at my home,   the result is the modem is dialing and is able to connect to the internet. But right after i change back to my PC, it can't detect the dialtone again.
i really have no clue for im a computer technician for 5 years.
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by:slink9
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Have you tried changing the irq settings on it?  It could be conflicting on that end.  If your video is conflicting with com2 try com3 or 4 and see if you get a good reaction from that.  Isn't this the first time you have mentioned the video conflicting?  Try changing the resources used by the onboard video through the BIOS.
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by:Heliumyap
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Oh, what im trying to say is the com 2 is replace by the onboard display port. So there is no com 2 for my motherboard, only com 1 is available. Also, im not using the onboard display anyway, so it is already disable by the bios.
And i did try changing all the irq setting from the bios for the com 1. But the result is still the same.
im gonna try remove everything from my computer (such as network card, sound card and the scanner scsi) except display card, harddisk, memory....the most minimum requirement to run the pc. Then i'll report the result tomorrow.

I should have mention the display port more clearly...sorry
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by:ComTech
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Hi all,

This question has been open for awhile. I am going to allow feedback from the questioner and experts. If it is not resolved, I will delete or accept an answer based on the info I have been given. Experts, feel free to offer input. I will monitor this question for a period of 5-7 days and come back and evaluate the situation.

If an Expert has helped, please accept with the answer button.

If returned to I will leave open for discussion.

Please do NOT accept this notice as answer.

Thank you,
ComTech
Community Support Moderator
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by:slink9
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No response from Heliumyap?  Split the points!
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by:Dufo G. Belski
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Nah.  Heliumyap had the last comment in this thread, and the problem was not resolved.  This should not be PAQ'd.
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by:Heliumyap
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even now the problem is still there
and theres no one able to help me :(
so what to do?
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by:slink9
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So you broke it down to the bare basics (video, floppy, hd) plus modem and still have the problem?  If so, you may want to fdisk and format the hard drive and start with a fresh Windows install.  If the problem still exists after a clean install I would suspect the modem itself.
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by:Heliumyap
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i did fdisk my harddisk and format it then install with a flesh windows. Without any programs on it, i install the modem but the problem still the same.

didn't i mention that i bring a laptop and plug the modem to it, it can dial and is working.

so why can'y my pc can't detect a dialtone?
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by:slink9
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Try using the onboard display instead of the plug-in display card and see if the problem goes away.
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by:Heliumyap
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hmm....alright, i'll try this at home. i'll post the result tomorrow
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by:Heliumyap
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ok...i take out the diamond stealth display card and run the onboard display just as you told me to. but the problem still there.
then i format the harddisk again and reinstall it with flesh window 98, it still wouldn't fix the problem...
anymore clue?
(actually what in my mind is "im giving up! please help!"
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by:slink9
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You have broken it down to the bare minimum on system specs and still have the problem.  I agree with the GIVE UP thought since I am stumped.  I have never come across such a stubborn problem, not even on our few EMachines and Pionex systems
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by:pbessman
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Try resetting BIOS with the JUMPER.  I have seen issue like this before where the  ports were not working, but once BIOS reset they come back to life.  Is it a possibility your Com port has become degraded.  Have you tried to run any DIAGNOSTICS on the port other than using the hyperterminal to communicate with your modem?
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ComTech earned 0 total points
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In keeping with EE policy:  No one has returned to this question.  There is no way to determine the outcome.

The points will be returned to your account.

I shall accept my own comment to close this question the information at 0 points. EE ruling against deletetion.

Thank you
ComTech
Community Support Moderator
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