Why does my V92 internal modem have to be rep

Us robotics Usr2980-oem v.92 low profile...
November 24, 2010 at 05:57:40
Specs: Windows XP, 512
Why is my internal modem going out so often? I have replaced it 7 times this year alone.
It works fine for a whi;e then starts having connection problems, then just stops working, I have tried expensive modems and cheaper modems, it dosen't make a difference. It's a 7 year old Compaq persario, windowa XP. Problem started gradually 3 years ago, Can't afford a new one. Also have had telephone connections checked out. Please help

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November 24, 2010 at 06:02:48
Instead of replacing the modems have you tried to just uninstall them in device manager, reboot and reinstall. I doubt the hardware is actually wearing out. Are you sure you have been using the correct drivers for the modems?

Are you using WinXP service pack 3 and all updates after that?

Also try installing a system monitoring program like CPUID or speedfan to see if the voltages being provided by the power supply are within specs. Links below.


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November 24, 2010 at 06:53:08
I have uninstalled and reinstalled each time and reloaded drivers each time. Am not sure about the voltage coming from the power supply. I can't download any suggested programs until I obtain a new modem. we lived 50 miles from the nearest computer supply store so it will be a couple of days before I can go. Is there a possible problem with the mother board connection.

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November 24, 2010 at 08:05:02
I haven't used dial-up in a LONG time but I know that external serial port modems are much better/faster than internal PCI modems, especially Winmodems. You should be able to pick up a used one for about $10. For example:



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November 24, 2010 at 08:26:37
I would go the external route as well; much more reliable. External modems have lots of light on them so you can tell exactly what is going on at any given time so when anything goes wrong it is a lot easier to work out what it is.


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November 24, 2010 at 09:14:50
Thanks I give it a try.

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November 24, 2010 at 12:25:44
Are you in an area with a lot of lightning? It does't take much of a surge to fry a moden.

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November 24, 2010 at 13:31:17
If the modems were getting fried wouldn't they just stop working all at once. That is not what was described in the original post.

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November 24, 2010 at 14:48:28
"Am not sure about the voltage coming from the power supply. I can't download any suggested programs until I obtain a new modem."

Usually you don't need to download anything to do that.
The current voltages, fan rpm(s), and temp readings are usually shown in the bios Setup somewhere.
The readings for what are supposed to be +3.3v, +5.0v, and +12.0v there are directly related to what the PS is putting out - they are supposed to be within 10% of the nominal value - if any of them aren't within 10%, if this is a desktop computer (a Presario can be either a desktop or a laptop) , the power supply should be replaced. If any of those voltages are more than 10% too high, that higher voltage can damage devices eventually rather than them merely not working correctly, the higher the voltage, the sooner that will happen.

If this is a desktop computer,if the PS is failing, you can usually replace it with any decent standard sized standard ATX PS with the same capacity or greater.

Standard (PS/2) power supply size - 86mm high, 150mm wide, 140mm deep, or 3 3/8" h x 5 7/8" w x 5 1/2" d , or very close to that, though the depth can be more or less for some PSs.

Don't buy an el-cheapo PS.
See response 3 in this:

Your power supply must have at least the minimum capacity required to support a system with the graphics card you are using installed, or the max graphics card you might install in the future.
(Onboard video - video built into the mboard - IS NOT A CARD ! )
If that info is not in the ad for the video card, you can go to the video card maker's web site and look up the specs for the model - often under system requirements - the minimum PS wattage, and, more important, the minimum amperage the PS must supply at 12v is stated. If you don't find that, any card with the same video chipset including any letters after the model number has very similar minimum PS requirements. Some power supplies have two or more +12v ratings - in that case, add those ratings to determine the total +12v current capacity.

If you're a gamer...
In most if not all cases, the max capacity rating of the PS is an intermittent rating. It's recommended that you do not load your PS to any more that 80% of that rating if you are going to be using something that puts a constant load on it, such as playing a recent game for hours on end. In that case, you multiply the min capacity stated for the system with the particular video chipset on the card by 1.25 to find the min. capacity of the PS you should get. .

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