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Windows 7: black monitor on boot

29 May 2013   #1

Win7 64bit
black monitor on boot

I have bootup problems. My monitors are black, the PC is booting to some level and than probably rebooting and so on. When I switch PC off and start some seconds later, and are luckily everything is well booting up.

Besides this, no problems.

Any ideas?

My System SpecsSystem Spec
01 Jun 2013   #2

Windows 7 Home Premium SP1, 64 bit

Are you saying that your PC Is double booting? Some motherboards do that.
My System SpecsSystem Spec
02 Jun 2013   #3

Win7 64bit

No, I had a doble OS setup before, now only Win7 64bit.

I made many things, like resetting BIOS, installing new beta graphic driver, a.s.o.

The only thing I know, there is a massive graphics problem, when booting up. The monitor looks terrible scrambled, like overclocked graphics card, but when the coloured welcome screen appears, everything is all right.

Most times the screen is black, when booting up, sometimes I see this scrambled graphics, and seldom it starts normally.

Any guesses:
software probem?
active adapter for monitors (eyefinity)?
graphics card problem?

Another problem is, that sometimes it boots up with ctrl key is activated (like outlook sys, it has detected that ctrl key is pressed, and asks me, if it should start in protected mode or so). One press on ctrl key and problem gone. Maybe this is the reason of the problems, or maybe only another trouble.
My System SpecsSystem Spec

02 Jun 2013   #4

Windows 7 Ultimate Retail Box (64-bit installed) + Service Pack 1

Got an old video card to try in the system?

Upgraded the BIOS to the latest version?

You have on-board video disabled in BIOS (if applicable)?
My System SpecsSystem Spec
03 Jun 2013   #5


Same symptoms i had with my ATI X1650 just before this card died. Everything was fine except start-up glitches like yours.
My System SpecsSystem Spec

 black monitor on boot

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