Check your Motherboard for bad capacitors. Check out www.badcaps.net for details. Swap power supply. (Another Capacitor issue) Video card could be dying, but not likely. Remove any modems you may have, (Lightning or other surge from phoneline fried the modem and it is hanging the system) Exorcism (Kidding)
Try looking up your zip code or see if you can update the computer.
Replacing a computer monitor should take less than 10 minutes. First shut off the computer. Unscrew and unplug the (blue or white) video cable for the monitor from the back of the computer, and unplug the monitor power cable. Then remove the old monitor from the desk, replace with the new monitor, and plug it into the video and power plugs. Start your computer and once it has started, adjust the resolution and refresh rate to match the specifications for your monitor.
Usually a no signal message means that the video card is not detecting the monitor. An easy way to fix this is to download the latest drivers for your video card and it should detect the monitor.
No.
The "input not supported" message typically means that the monitor is receiving a signal that it cannot display, often due to a resolution or refresh rate mismatch. To fix this, try booting your computer in Safe Mode by pressing F8 during startup, then access the display settings by right-clicking on the desktop and selecting "Display settings." Set the resolution to a supported value for your Acer monitor, typically 1920x1080, and ensure the refresh rate is set to 60Hz. If that doesn't work, try connecting the monitor to a different computer to rule out hardware issues.
how is the first computer monitor
A computer monitor is hardware. It only provides for display.
Monitor is not plugged in or monitor is not plugged in to computer
Booting is defined as: "The time when a computer's motherboard, Hard Drive, RAM, and other peripherals receive power from the distributor." During this time the computer's OS (Operating System [instructions for the computer]) are loaded into the RAM and several small diagnostics are run (mouse, keyboard, USB, monitor). Depending on your computer's available memory, Operating system, and number of boot files, this can take anywhere from 30 seconds to about two and a half seconds. An example is the Windows XP screen with the small, green scrolling bar at the bottom.
There may be multiple diagnostics --> 01. Problem with your VGA adapter. 02. Problem with your RAM or BIOS [If the sytem is not booting at all]. 03. Problem with your monitor [Its not able to display the specified resolution or its suffering from some technicle problems.] Check with your computer dealer or manual for additional support. You did not mention ur monitor's make or type. - _rocky_
Have you tried a different monitor? Even if it's giving an actual error message, it may just be broken. Also, it may be your graphics card; or if your using integrated graphics, they may be shot too. Try the monitor on a different computer so you know that it works. Then go from there.
Your tower is your computer. If you are asking if the monitor and computer have to match the answer is no. You can use any monitor with any computer.