Monitor Shakes (calling all to help me out)

Superpabs13

Member
Apr 14, 2001
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I am running a visiontek geforce3 (Not oc'd at the moment) with a dell 19 inch trinitron monitor. My problem is that my monitor periodiclaly begins to shake..sometimes worse than others. There is no rhyme or reason to why this happens, or to why the shaking stops! THe only fix is when I lower the refresh rate to 60 hz...and thats just not acceptable. So if you know of any way of telling what is causing this problem, HOW TO FIX THIS PROBLEM, or even have a guess as to which component is causing it...plz let me know. THanks alot guys, hope to hear back soon.
 

Dreadogg

Golden Member
Mar 1, 2001
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Have you tried a different monitor or video card? if yes and they did not help it could be a possible power related problem as in the currunt going in the PC like say a bad ground!If someone turns on the microwave or a heavy power sucking utility does it seem to shake alot? If so its definitly a bad ground on your main power box !
 

CurtOien

Golden Member
Oct 9, 1999
1,948
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A battery backup with AVR (automatic voltage regulation or something like that) may help if your power is not very smooth.

Also check for eletromagnetic fields.
Try moving your monitor to a different location.
Unshielded speakers, florescent lighting and things like this can mess it up.

I can not have a monitor within about 5 feet of where the power line comes into my house.
The wires come in at the roof and run down outside the wall and into the basement.
Anything along this wall area wiggles like mad, sometimes it's worse than others.

In the northern hemisphere monitors are built to work best while facing east.
That means you would face west while looking at it.
If you spin your monitor around, you will see how you have to adjust it to compensate for the magnetic pull of the earth.
My high end monitors are more sensitive to this than my cheap ones.
I think it is because the beam is aiming for a smaller target.

It should also help if you do not run your monitor at it's highest resolution as that would be pushing it to the edge of it's limits.
If you pick a refresh rate that is not supported by your monitor that will mess it up too.
I almost always choose "optimal" for my refresh rate but I had a weak monitor once that I had to choose 75.

Some people get too neat and bundle their cords all in parallel.
Keep your power cords away from your data/signal cords.
I hope something here helps you.
 

Jiggz

Diamond Member
Mar 10, 2001
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First you need to isolate whether the problem is from the system or from the monitor. To do this you will need either a spare video card or a monitor. With a replacement monitor and the problem goes away you can tell the problem is with the exisiting monitor. But if the problem stays with a replacement monitor, it could be the video card in the system or external factors affecting both the system or the monitor, i.e. EMI, high power surges, power supply is spiky, etc. So to finalize the isolation of the problem you will need a spare video card. If the problem goes away with the spare video card, then you know it's a card problem. But if the problem stays then it's an external factor affecting the system. Now you need to re-orient the system including the monitor.

With the symtpoms you indicated, I can already make an educated guess that the fault is within the monitor since the shaking goes away at 60Hz. See if you can lower the resolution to about 1064X720 and increase the refresh rate to about 75hz. If the shaking is still there then you're better off looking into an RMA.
 

MWink

Diamond Member
Oct 9, 1999
3,642
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My Opti-Quest Q75 started doing that a few months ago. I just changed the refresh rate. It only seems to do it at 90 or 100Hz. I recommend you try the different refresh rate options (I hope there are some higher than 60Hz).
 

bocamojo

Senior member
Aug 24, 2001
818
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Maybe it's cold... Get it a blanket... If that doesn't work, you could always try a little "percussive" maintenance (i.e. kick it)... Awww, I'm just having some fun with ya :) .... Seriously, I'd take it in to another room, hook it up to another pc (if one is available), try different vid card to see if it's a problem with the vid card, or just the monitor (trying another monitor on the GF3 also, if possible). It may be that the monitor doesn't support the higher refresh rates (less likely that it's the card)... If all fails, take it out and put it to sleep... and go by yourself a new one.