After bios screen, screen goes blank

February 5, 2011 at 19:53:56
Specs: Win7 Home Premium 32, C2D e7500 / 1 stick 2GB
PC built 12/2009, MSI G41TM-E43 w/ on board DVI video, C2D e7500, 1 stick of Patriot PC -6400 2GB RAM, 80GB boot drive, Win7 32bit, Acer 20" flat panel LCD.

When I turn it on, I see the MSI branded bios screen and then I see windows begin to start and then the screen goes blank and I get the monitor's "no signal" message. One time it booted all the way into Windows and I thought it was just a fluke that fixed itself. However, when I came back 15 mins later, the screen was blank again and unresponsive to me hitting the ESC or any other keys. 5 more attempts at rebooting resulted in the same blank monitor screen.

I took the monitor and hooked it up on a different Win7 desktop in my house and its working fine on the 2nd PC so I believe the problem is with the PC not the monitor.

On the PC in question, I can boot into safe mode with networking just fine - the video driver is intel G41 express chipset dated 8/15/2010 and version and I haven't done anything to the drivers in quite a while.

Any idea why the video is having problems? memory? mobo? Where do I start?

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February 5, 2011 at 23:10:40
Check your CPU and power supply fans and see if they run properly at start up. That used to happen to me when one of them was defect. Check your BIOS settings to see if there is any "smart fan" or "silent fan" setting enabled, and disable them. These only serve to save power so if anything they can cause your compuiter to overheat. When a computer overheats, it pretty much does this - stops responding altogether.

Make sure your video card is connected properly. Make sure it is screwed tight and that it is not loose. Also make sure that the power connector of your screen is okay, and that the video connector is connected and screwed in properly into the video card. If any of these connections are loose, the display driver can fail and when that happens most computers will just freeze. Some of them won't even run of the screen isn't plugged in.

Between the loading screen of windows and the account logon screen, the display driver is loaded and the screen's resolution and color dept is set. In exceptionnal situations that might cause the computer to crash, for example if the driver is not working well. Try running your computer and hitting F8 several times very fast right before Windows starts booting (after the bios). This will get you into the windows boot meny. Run windows in SAFE MODE. Your display drivers will be set to work at their most basic setting. From there, if your computer boots completely, check to see if your display drivers are okay and reinstall them if possible. If you do not have the drivers CD, run Windows in safe mode with networking allowed,so that you can connect to the internet and look for driver updates.

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February 6, 2011 at 14:08:44
@Vidda - thanks for the suggestions.

My CU is running about 30c and sys temp is ~24c so I think I'm ok on those temps, right?

This MSI motherboard, with on board video, has a DVI, a VGA, and an HDMI port. I was having the problem with the DVI port. I swapped out the DVI cable for a VGA cable and the video seems to be working fine now and it boots into Win7 in normal mode.

1. What does it mean when the DVI port doesn't work but the VGA does? The monitor connected via DVI to a different PC just fine so I don't think there's a problem with the monitor's DVI port. I thought maybe the DVI port on the mobo went bad but remember, the mobo's DVI connection worked fine when I booted into safe mode. The mother board is beyond it's one year warranty from MSI.
2. Will I lose noticeable picture quality by using a VGA cable instead of a DVI cable?
2. Should I buy an HDMI to DVI connector and use the HDMI port on the mother board for better picture quality? My wife does picture editing with photoshop on this PC but we don't do any HD watching with it.

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