Question about Dell Inspiron 6400 Notebook

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Null modem serial cable

Hi,
I have a Dell Inspiron 6400 (called A) that I need to connect with a null modem serial cable to hardware point (B). The problem is that the null modem does not connect to A and the only connection point I have (as opposed to 4 USB ports) is the monitor port. What do I do?
Regards,
pacmanster

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Usb to serial or usb to parallel adapters

Posted on Apr 16, 2008

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You will need either a 9 pin serial cable or 25 pin. You need to reverse rx and tx ground them both alike and reverse rts and cts ( request to send and clear to send ) It's pretty easy and a product called a null modem will do it if your not handy with a pin puller. Some of the more fancy null modems have leds showing the flow of data. It's usually under $10. Null modems go on a straight RS232 cable of course. Staples may have it or office max.

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Check on another external monitor, if the picture is ok there, eliminate a faulty graphics chip
If picture is still poor, Graphics chip is faulty

You are now left with the issue of it being the VGA cable from the mobo to the screen, or a faulty screen. It may be that you just need to have the connections checked, but also may point to a replacement screen or Cable being needed

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Depending on the serial cable you have, you may need a modem (crossover) adapter between the cable and the EOC-3220. A good diagnostic is the following: with the EOC-3220 unplugged from power, connect your serial cable and make all the proper baud rate etc. settings in your serial communications program. When it is running, plug the EOC-3220 into power. If you don't see any garbage characters appear on your screen when you plug the power in, your comm program is probably not set up properly. If you see garbage characters but they are not immediately followed by good information from the EOC-3220, then you either need a null modem adapter inline, or you have a dead EOC-3220. If you've never communicated successfully with an EOC-3220 before over the serial channel, the only way to know if you have a dead one is to try again with a known-good one.

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My laptop is del inspiron 6400,i have installed a new os ,windows xp. i have downloaded drivers but i have a problem in installing network drivers . iam given the information of uncompatability of hardware...


Hi,
Connect your laptop to the internet using Wifi (obviously network connection not available due to your problem) and update the drivers for the network adaptor. Can you use a free Wifi point somewhere to connect via Wifi to help with the driver issue?
There will be a yellow exclamation mark next the network adaptor problem in the WINXP System Properties. To get here right click on My Computer, then select Properties, then Hardware, then Device Manager. Find the offending network card problem, double click the device, Select Driver, then Update Driver. Let WINXP find the driver from the internet.
Alternatively, check the driver you downloaded from the Dell support webpage. Are you sure it was the correct driver for WINXP for the same model of network card fitted to your Dell 6400? A message about incompatible hardware means you are trying to use drivers on hardware which is not compatible with that driver. That is a good sign that you dont have the right drivers.
Go to Dell here: http://support.dell.com/support/ and select Drivers and Downloads.
Try this link here:
http://support.dell.com/support/downloads/driverslist.aspx?os=WW1&catid=5&dateid=-1&impid=-1&osl=EN&typeid=DRVR&formatid=-1&servicetag=&SystemID=INSPIRONI6400%2FE1505&hidos=WW1&hidlang=en&TabIndex=&scanSupported=False&scanConsent=False

Ask me for more help.
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1 Answer

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Hi,
Technical Support for Inspiron 6400/E1505 function addOnloadEvent(fnc) { if ( typeof window.addEventListener != "undefined") window.addEventListener( "load", fnc, false ); else if ( typeof window.attachEvent != "undefined" ) { window.attachEvent( "onload", fnc ); } else { if ( window.onload != null ) { var oldOnload = window.onload; window.onload = function ( e ) { oldOnload( e ); window[fnc](); }; } else window.onload = fnc; } } addOnloadEvent(displayheader); function displayheader() { if(document.hidForm.hidSys.value == "" && document.getElementById("SystemName") != null) { document.getElementById("head").innerHTML = document.getElementById("techheader").value + " " + document.getElementById("techheaderfor").value + " " + document.getElementById("SystemName").innerHTML; } } AC Adapter Error Message Occurs


Here is what you need!!! Click on the Above Link. Follow Each and Every Step.

Hope This Helps!!!  Please Don't Forget to Rate my Response!!! Thanks!!!
PREM

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1 Answer

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It all depends how your cable is wired. I had to add a null modem adapter and a gender changer to the USB-to-serial cable I bought for this task before I could communicate with the radio. I suggest you try the null modem to see if that is your issue.

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1 Answer

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Here is the url for dell drivers:

http://support.dell.com/support/downloads/driverslist.aspx?c=us&l=en&s=gen&ServiceTag=&SystemID=INSPIRONI6400/E1505&os=WW1&osl=en&catid=&impid=

I don't think you would be using modem for internet connectoion.

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