Having problems with your Rosewill R900J 19" Flat Panel LCD Monitor ?

-computer has gone blank

\015 I have two computers . The older computer have been giving a screen with veritcal lines and sometimes it had difficulty starting . It showed in safe mode until it went blank . Please tell me what has gone bad to be replaced.\015

Answers :

This could be anything from the monitor to bad ram or other items...i.e. software. I can't tell you what to replace but I can tell you what to check....in probable logical sequence. First, check your connections....meaning unplug and plug in again. Next (given that does not work) switch monitors. If the bad monitor is still bad and the other monitor works on your old system that tells you either the monitor is bad or you have a problem with your old system. If the monitor is good the next item to check is the video card. First try reseating it.....reseating means taking it out of the slot and putting it back in. There are some preparatory things you need to do first though. 1) You need to open the computer case. 2) Before you attempt to remove the board make sure you touch your machine (frequently). This (more or less) puts you and the machine at the same electrical value / avoids a static discharge. 3) Removing the board means you will probably have to unscrew one screw, it holds the board in place.

Notes: The video card is what the data line from the monitor is connected to by the way. Make sure you have unplugged your computer after opening the case and prior to placing fingers inside the case.

4) Using a the eraser end of the pencil sand the gold fingers on the video card after removing it. The removal process normally requires you tilt it slightly forward and then pull straight up (gently please but with increasing pressure....a slight wiggle helps (not that kind). 5) Reverse the process (ignore the wiggle) and when complete turn it on again. 6) If you get the same result it is in all likelihood the video card. These are available for an "old" computer in the $10-15 range worst case (I assume you do not use the old computer for gaming the latest and greatest 3d stuff).
Pricewatch.com or your local computer shop will have a low end board....you probably only need 1024 x 768 resolution. And it will go back into the same slot you took it out of (probably) which is an AGP slot (and the type of video card you want).....but...I said probably. Sometimes the AGP socket is bad or the components that support it. In which case....assuming you have a PCI slot available then you would need a PCI video card instead. Is this all that is possible....unfortunately no. The clue in your request...it sometimes has difficulty starting might lead one to wonder about the power supply (if flakey to use a tech term it could be the problem).....so while you video card is out....and if the other computer will accept it...plug it in there (since you are now an experienced tech....lol). If it works then replace the power supply....these also can be obtained from a local shop usually (unless you live in Kansas...I do for the moment) or Pricewatch.com can point you in the right direction. Since I don't know what you have for a machine you will need to check the wattage (it's on the label) of your existing power supply. The power supply is what the power card plugs into. Take a look around when you are inside the case in case you elect to replace this yourself....(not difficult as long as you label all the cables with the way they attach.....and particularly the power cable to the motherboard....if put in backwards on older machines that do not have an insert key that prevents it...you will get one "POOF".....which translates to you just blew the motheboard and or the CPU....on the other hand you have learned and can now pick up a motherboard combo (see pricewatch for an explanation) and have (essentially a new machine)......did I leave anything out? Yes it could be a ram problem or the motherboard with bad circuitry....to test the ram you need to download memtest32 (just do a google search - it's free) and follow the instructions. If, having tried all the above (which I suspect you will not have to do) it still does not work then it probably is the motherboard. Morale of the story....ask a simple question and (with respect to computers) there is no simple answer frequently. Good luck...be careful and please do not forget to unplug the machine when working inside of it.
Repair Help & Product Troubleshooting for Rosewill R900J 19" Flat Panel LCD Monitor

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