monitor loses signal, pc stays on.

May 5, 2015 at 17:23:49
Specs: windows 7, 8gb
Built my first computer last week:

I have had some issues! After first installing my drivers, I had to uninstall my display adapter driver in safe mode to boot properly. I fixed that by updating windows and ended up reinstalling windows because my monitor would lose signal randomly.

I purchased a new monitor, took an air compressor to the GFX card, reinstalled windows, reseated my card, put a new fan in my case, checked all connections, and I still have this issue.

Idle or not, this happens. I don't know what to do next.

Edit: my power supply is actually a coolmax 1000w

message edited by ketacide

See More: monitor loses signal, pc stays on.

Report •

May 5, 2015 at 18:44:58
I have entirely different hardware, but the same problem. I built the
computer I'm typing on now in early 2010. Maybe two or three days
after first applying power, I started noticing that the screen sometimes
didn't come on at first. Or it came on and then went out for anywhere
from a few seconds to a couple of minutes, until it spontaneously came
back on. Often (but not always) a video reset would do it. One way to
do a video reset is to hit Ctrl-Alt-Del while in Windows. Also one of the
drivers that gets installed before Windows loads does a video reset,
so the monitor often came back on at that point during boot.

But after having this problem for four years, never knowing whether the
cause was the video board, the motherboard, or the power supply, I tried
using a DVI cable several months ago, and the blackouts have stopped.
I had the problem with both HDMI and VGA cables, so I knew the problem
wasn't in the cable, and thus never tried the DVI cable that came with the

-- Jeff, in Minneapolis

message edited by Jeff Root

Report •

May 12, 2015 at 02:57:37
what about your RAM?..
Did you reseat it?..
Improper RAM settings also cause no display in monitor

Report •
Related Solutions

Ask Question