Solve : Flashing Screen?

1.	Solve : Flashing Screen?
Answer» I just built a computer and have had for a week. However, last night at about 1 A.M., when I was getting ready to shut it down, the screen went black. It came back on but off again within only a second. I shut it down manually but everytime i boot the computer back on, the screen works until after windows has finished loading. It then does this flickering thing continously, being more off than on, and it is impossible to do anything. Also, the icons that were on my screen do not appear. Only some of them actually load when the screen fliskers on and the BOTTOM bar does not load. My ocmputer has these specs: Intel core 2 duo processor 2.4 Ghz Two GeForce 7950 GT graphics cards with SLI enabled Nforce 570 SLIT-A V5.1 775 Motherboard Two OCZ 1G RAM sticks 250 G Western Digital Hard Drive and a VeiwEra 19" LCD Monitor Everything worked completely fine until last night. Any help would be appreciated because this set me back a couple bucks and I REALLY don't want to buy anything else.Try re-seating those vid cards and re-load the drivers just to be safe... You did remember to use/apply thermal compound on the CPU correct ? ? Is this a brand new PSU or did you use your current one, you might be underpowered. That's all i can think of for now...Yes we heard all about the fancy hardware but nothing about the make and wattage of the power supply and if it was new too.The power supply is 600 W and it worked fine for a week. SLI only REQUIRED a 500 W supply...what is re-seating the graphics cards?...do I just switch their places?...Also, I can't really do anything on the computer so if you think I can just mess around with settings, you're mistaken. I have switched monitors as well with a different computer and the monitor I have works just fine everywhere else but I get the same effect on my comoputer with different screens. Thermal copmound was already applied to the cpu when I got it. Also, the powersupply I got was brand new, not an old one. Quote Yes we heard all about the fancy hardware but nothing about [highlight]the make [/highlight]and wattage [highlight]of the power supply and if it was new too[/highlight]. It's a Seasonic S12 600w power supplyRecheck all CONNECTIONS. If it is still the same we can troubleshoot further. You said you built it originally, but later you did not know how to reseat a video card? Yeah, I built it in my A+ computer repair class with a teacher, who is certified, watching over me. Also, I just never heard the term "reseating". I figure it is just pulling it out and putting it back in. I have done this and you said to reinstall drivers, I can't. The screen is not loaded up long enough for me to see what is going on and what I do see is that the graphics of the driver installation is not even coming up all the way. Also, I have checked all power connections and the same thing continues. I just called EVGA support and they said that either the power supply has gone bad with the voltage, or the most likely thing is that a graphics card has gone bad. They said to plug each card in individually and test to find out if it is one or two cards. I will post tomorrow as I am getting to tired to do anything right now. Post if you have any other helpful information.I suspect the PSU...After checking each graphic card individually, I have found that one card does not evn boot up the computer all the way and that all graphics displayed before windows, boot screen, is all messed up. I figure that the graphics card is the PROBLEM and am sending it in for replacement...I will let you guys know if it doesn't fix the problem.If you have distortion BEFORE Windows loads it is either a bad OR poorly seated card. It seems you have identified the guilty party. Thanks for the helpAlright some of my friends still think it's the PSU that is causing the problem because it is a 600W one but I am pretty sure my graphics cards only require a 500W PSU and i went to the website Antec.com where it will tell you how much wattage your computer needs after you tell it all your components and it said I only need 400W. Is it safe to rule out the PSU? If anyone has any proof as to why I should think it is the PSU please post.If one card doesn't even run you have probably already found the problem...

Answer»

I just built a computer and have had for a week. However, last night at about 1 A.M., when I was getting ready to shut it down, the screen went black. It came back on but off again within only a second. I shut it down manually but everytime i boot the computer back on, the screen works until after windows has finished loading. It then does this flickering thing continously, being more off than on, and it is impossible to do anything. Also, the icons that were on my screen do not appear. Only some of them actually load when the screen fliskers on and the BOTTOM bar does not load.

My ocmputer has these specs:
Intel core 2 duo processor 2.4 Ghz
Two GeForce 7950 GT graphics cards with SLI enabled
Nforce 570 SLIT-A V5.1 775 Motherboard
Two OCZ 1G RAM sticks
250 G Western Digital Hard Drive
and a VeiwEra 19" LCD Monitor

Everything worked completely fine until last night. Any help would be appreciated because this set me back a couple bucks and I REALLY don't want to buy anything else.Try re-seating those vid cards and re-load the drivers just to be safe...

You did remember to use/apply thermal compound on the CPU correct ? ?

Is this a brand new PSU or did you use your current one, you might be underpowered.

That's all i can think of for now...Yes we heard all about the fancy hardware but nothing about the make and wattage of the power supply and if it was new too.The power supply is 600 W and it worked fine for a week. SLI only REQUIRED a 500 W supply...what is re-seating the graphics cards?...do I just switch their places?...Also, I can't really do anything on the computer so if you think I can just mess around with settings, you're mistaken. I have switched monitors as well with a different computer and the monitor I have works just fine everywhere else but I get the same effect on my comoputer with different screens. Thermal copmound was already applied to the cpu when I got it. Also, the powersupply I got was brand new, not an old one. Quote

Yes we heard all about the fancy hardware but nothing about [highlight]the make [/highlight]and wattage [highlight]of the power supply and if it was new too[/highlight].

It's a Seasonic S12 600w power supplyRecheck all CONNECTIONS. If it is still the same we can troubleshoot further. You said you built it originally, but later you did not know how to reseat a video card?

Yeah, I built it in my A+ computer repair class with a teacher, who is certified, watching over me. Also, I just never heard the term "reseating". I figure it is just pulling it out and putting it back in. I have done this and you said to reinstall drivers, I can't. The screen is not loaded up long enough for me to see what is going on and what I do see is that the graphics of the driver installation is not even coming up all the way. Also, I have checked all power connections and the same thing continues. I just called EVGA support and they said that either the power supply has gone bad with the voltage, or the most likely thing is that a graphics card has gone bad. They said to plug each card in individually and test to find out if it is one or two cards. I will post tomorrow as I am getting to tired to do anything right now. Post if you have any other helpful information.I suspect the PSU...After checking each graphic card individually, I have found that one card does not evn boot up the computer all the way and that all graphics displayed before windows, boot screen, is all messed up. I figure that the graphics card is the PROBLEM and am sending it in for replacement...I will let you guys know if it doesn't fix the problem.If you have distortion BEFORE Windows loads it is either a bad OR poorly seated card. It seems you have identified the guilty party. Thanks for the helpAlright some of my friends still think it's the PSU that is causing the problem because it is a 600W one but I am pretty sure my graphics cards only require a 500W PSU and i went to the website Antec.com where it will tell you how much wattage your computer needs after you tell it all your components and it said I only need 400W. Is it safe to rule out the PSU? If anyone has any proof as to why I should think it is the PSU please post.If one card doesn't even run you have probably already found the problem...

Solve : Flashing Screen?

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