New monitor&new pc. Screen flickers with horizontal lines. Vsync? Help needed!

[Neb]

Okay guys, I found a solution and I thought I would share it with you. The thing is, there were 2 problems. First it was the v-sync problems which only occured in some games (that all had a v-sync option which fixed it). Then there was another problem:

I noticed that there was a constant flicker on the screen whenever there was something dark on it (as in games, movies and such). Even when I had a dark wallpaper on my dekstop. I couldn't understand what on earth could be causing it and the answer was this:
Voltage.

I tried switching the monitors power cable to another wall socket, and HELL YES! The problem was fixed. No flickering now what so ever.

I'm pretty damn happy right now since I just figured this out 5 minutes ago. And I'm glad the solution was this simple. I'm a little embarressed, since there was nothing wrong with the monitor, nor my graphics card. But I'm posting this just in case there's someone else out there with the same problem as me.

Peace :smile:

Dirty power. You can buy a socket extender that has built-in filtration of moderate quality to reduce this type of problems with different devices hooked up to the same fuse/rail. Claes Ohlsson got some for about 70-100kr and then there are better ones at Komplett for 200-600kr.

 

[Neb]

Sorry to shatter your theory about US house wiring, but I actually live in Sweden. So I suppose swedish electricians suck

Some older houses/apartments have badly wired cables and/or in bad condition. Devices hooked up to the same rail can create interference travelling across the line.

Becouse in Sweden they make high quality meatballs with potato mash, brown sauce and lingo sult!

 

[homerdog]

why are there no adverts for ups's in uk pc magazines ?
because theres no market, they arent needed

Yes I understand that, but why are they not needed? Or why is the quality of power better?

 

[Bouncing Zabaglione Bros.]

I do remember reading somewhere that 110 volt as used in the USA is more susceptible to noise ingress than 220v as used in the UK. It's also something to do with the two pin power system used in the US as opposed to the three pin system used in the UK (almost everything here is earthed) that can allow more noise and fluctuation into the system. You could probably do some checking on Google and Wikipedia to find out the details.

It's certainly unusual to have a UPS/power smoother on a domestic machine here, though a lot of people use surge protectors in case of a spike.

 

[Davros]

zabaglione said it better than I could of, I would add that we also have a national grid so even a couple of power stations going down wont affect anyone

 

[homerdog]

I do remember reading somewhere that 110 volt as used in the USA is more susceptible to noise ingress than 220v as used in the UK. It's also something to do with the two pin power system used in the US as opposed to the three pin system used in the UK (almost everything here is earthed) that can allow more noise and fluctuation into the system. You could probably do some checking on Google and Wikipedia to find out the details.

It's certainly unusual to have a UPS/power smoother on a domestic machine here, though a lot of people use surge protectors in case of a spike.

I see, thanks.