Screen flicker. Doing my head in!

[SimonT]

I put together a computer for general use, not gaming and since using it i've been having a problem with a certain area of my screen flickering when watching videos in full screen. It's only really in the same place and not the whole screen. I've tried changing the frequency to 75hz which made it a little better but it's just starting to annoy the hell out of me. I've updated drivers from the graphics card suppliers site and right clicked in device manager and updated drivers for other components. Any ideas what else i can do?

I'm not too technical with computers so the help would be greatly appreciated.

What makes it more annoying is that i built a very similar system for my work bar an ASUS motherboard and a 840 SSD and no dedicated graphics card and the picture quality is perfect with no flicker.

Spec:
Samsung 128GB SSD 830
Intel Pentium G840 2.80GHz
OCZ ZS Series 550W '80 Plus Bronze' Power Supply
Gigabyte H61MA-D3V Intel H61
OcUK GeForce GT 430 1024MB GDDR3
BitFenix Merc Alpha Gaming Case
Kingston HyperX Blu 4GB (2x2GB) DDR3 PC3-12800C9
Samsung S19A200NW 19" Widescreen LED Monitor

 

[riskyfrisky]

Does the motherboard have on-board graphics? If if does try using that instead of the GT430 and see if it happens with the on-board. Have you tried a different monitor?

 

[SimonT]

Does the motherboard have on-board graphics? If if does try using that instead of the GT430 and see if it happens with the on-board. Have you tried a different monitor?

Thanks for the reply.

Yes as far as i know. I've tried to disable the GPU in Device Manager but the screen display really suffers and it's no good for being in desktop let alone video playback.

Would updating the motherboard driver help the GPU? I've tried on Gigabyte's website but i can only get as far as downloading the file and it won't open when clicked.

I do connect my GPU to my TV via HDMI to watch programmes that i've downloaded and it doesn't flicker on the TV. I take it that means it will be my monitor?

 

[riskyfrisky]

You'll need to go into the BIOS and enable on-board graphics only. It may well 'sense' the cable connected to the motherboard and switch accordingly, but i would suggest removing the GT430 just to be sure. Make sure you uninstall the GT430 driver.

Updating the motherboard drivers may help the on-board; look for the latest chipset driver and/or GPU driver. Do it when the GT430 is not connected and the driver for it is uninstalled. Basically, you don't want a mix of drivers on the PC so ensure only the ones you need are installed.

If you have no issue with the machine connected to the TV, then it does sound like there is a problem with the monitor, though i could be wrong. Do you connect via HDMI to the monitor like you do on the TV? Or is it DVI?

 

[zakblood]

depending on cable used could be bent pins, trapped cable or just poor drivers, like above says if you can test in on another pc and see, that will rule out the monitor and cable in use, for drivers etc, remove the ones you have and let windows find it on re boot and see if it still does it with the default ones windows loads for now