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Your computer isn't starting up, no video is getting to the monitor, and that's why you see the "no signal" message and the power light goes orange. Make sure you've reconnected any internal cables you might have removed when you replaced the RAM. Also be sure you've seated the RAM properly into its socket. I've seen modules seated crooked so that contacts are shorted. The modules should fit properly into the sockets so the latches click into place.
Try reinstalling the original RAM and see if the computer starts properly. You might have a defective part which is keeping the board from starting up.
Since the trouble began after you replaced the RAM, that's where to start looking for the cause. Good luck, and thanks for using Fixya!
first problem could be the hdmi cable you are using is loose or broken.second, the display mode you selected was wrong, try to go to desktop and right click and choose nvdia control panel and choose the nview display mode to use,select the only use one display(single)and apply.
Thank you for providing your configuration details.
You have failed to specify wheather or not your LCD Display is under Warrenty.
Perhaps these simple trouble shooting procedures will get the job done.
1. use the DVI to VGA adaptor that came with your card
Plug in a regular CRT monitor to the Primary Display Output Port using the DVI to VGA adaptor
( either port can be designated as the primary by you )
I like to use the Port nearest to the motherboard as the Primary
2. plug in the your LCD monitor on Secondary Display port using your DVI cable
At this point you should be able to see your desktop on the Primary CRT Display
3. Go to the display properties and use the Nvidia Dual Display Setup Wizard
set both desktops to CLONED at a resolution of 1024x768 and set the refresh to 60Hz
which is default for most LCD displays , some have higher refresh rates , consult your user manuel
If the display resolution and refresh are set incorrectly for your CRT or LCD you will see
Signal Out of Range ( if the display has the ability to display that error message )
At this stage both displays should be showing a Windows Desktop
If you now see your desktop on both displays , you can now put the LCD on the Primary Port
No Signal Detected ( this means the display device is not receiving a signal )
If your LCD display is still displaying the error message
"No Signal Detected" after performing the trouble shooting proceedures
You may need to read the user manuel about how to enable DVI signal input.
If you are certan you have done everything correctly but still see only "No Signal Detected"
If screen says "Signal cable not connected " all the time till power led switches to Amber chances are monitor is ok and problem is with graphic card or cpu.Connect to Known working CPU and confirm that monitor is the problem.
If same problem persists on another working cpu after changing signal cable,the interface board in the monitor could be defective.
if your monitor is not connected to a pc, then it cannot find a vga signal input and therefore go into power saving mode, which is indicated by the orange light, but as soon as you connect to the pc and power on the light will go green and the monitor will power up.