View Full Version : No video signal (graphics card gving up?)

08-15-08, 08:32 PM
Alright so I got my new power supply and graphics card and after a while of putting a huge graphics card and psu in my minitower I tried everything and it didnt work. I turned it on and after about 3 mins the screen went blank and said no video signal, but everything else was still running fine. I restart and only got about 1 min. And then 45 seconds. Then I let it sit for half hour nad got 2 mins out of it. SO i put in my old graphics and make sure i fully uninstall it, and i did. Try it again, same thing. So idk. My psu obviously works because I'm using my old graphics card atm. And when I took out the new one it was VERy hot. I had to let it cool for little before i could remove it. Im guessing that the graphics card gets too hot and just shuts down? I would like to try as many solutions at once so I dont have to keep taking it in and out just to test one little thing. Any help/tips is helpful.

psu= PC Power & Cooling S75QB 750W
grpahics card = VisionTek 900244 Radeon HD 4870

08-18-08, 04:55 AM
When you get that no video signal thing, thats usually a sign of bad/too weak psu.
If not, make sure the fans are working on the card in question since you say it gets very hot. Heat might also be an issue when a card shuts down like that.

08-19-08, 07:43 PM
Use the fan tweak in the profile area to manage your heat issue. I had the signal loss only once, but turning my HDTV off and back on, it came up. Running hdmi to the HDTV. Never had it happen with the dvi connection before I went hdmi.

08-20-08, 12:33 AM
If you are using DVI, try the rgb port. This happened to me when I tried dual view. The dvi of my older monitor just crapped out or something and now only the analog works