Pc tower how do i hook up two pc towers to one monitor

usually do this if the ram is wrong.. have you just put this ram in ???

Try a different monitor. If that works, your old monitor died and you need a new (or used) one.

what tower? model, the monitor has nothing to do with power and dead fans in the tower.
'Sounds, (and silent to) means the PLUS in the PC is dead.
all things can be repaired, that is what technicians do.
here is the chain of events, ! to get noise (fans)
power in the wall 120vac , usa
power to the PSU,
the power button goes to the MOBO, and standby power is there
now and pushing said button the MOBO commands the PSU on
if the PSU is happy (PWROK) thinks PSU IS safe the PSU tells the PC its ok, and power stays up.
and fans run.

so my guess bad PSU, its easy to test with anyf $10 voltmeter,
ask.

tower PSU, 101

http://pcdied.com/power.html

Your desktop tower/cpu tower has to be turned on to give those hardware power. If you can't turn on your computer then that means you have an internal problem with your motherboard etc. If everything else powers up except for the screen/monitor your video is dead. Find someone you know that has an extra monitor and hook it up to your tower, if it works then it's not your video but the monitor instead.

its is telling you the truth (99.9999999% of the time)
believe it !

no PC stated
no TV model stated nor clear connections stated.
are you trying to get the PC (the tower means that)?
to run to video concurrent ports at the same time?

so do both fail,
VGA side
and DVI side,
you never said.

hard to help lacking
what TV
what Tower
what connections, and special adapter (HDMI)
the TV has DVI??
sorry, cant see what you have there. at all.

1 Single VGA cable will connect into the back of your PC. Another power cable will be needed to plug the monitor into an AC outlet.

Make sure the audio cable supplied with the monitor is connected correctly. Make sure it is connected to the green (speaker out) jack at the back of tower and the same green (audio in) jack on the monitor. Also make sure the volume on both your PC and monitor is turned up and not muted

Hook it up as u would hook up a regular monitor,Turn on the tv power.U the remote see a button said function press it selected PC in.Now u use as a computer monitor.

Hmm. Well, that doesn't make sense, as your monitor should power on even if isn't hooked to the tower. I'm out of ideas.