Sudden Monitor shake

poorhousefx · 07-18-2006, 07:25 PM

Hi:
I Have a roughly 1 - 2 year old MAG innovision monitor on a mac mini (OSX). Lately I have been getting a lot of monitor shake. I did notice anything causing interference, at least nothing new. I have always had my modem and card reader on the same shelf nearby and everything else is fairly separated. I do have a router for my wirelsess connection on my laptop which I recently moved but did not think it was that close.

So my questio nis, can a wireless router cause this monitor shake if it is too close?

Any help would be appreciated.

Thanks

**Terrister** · 07-18-2006, 10:41 PM

Any electronic or electrical device can do this. Normally if all the devices are working well, this will not happen. Normally the monitors have enough shielding to block this. Are they plugged into the same power source?

poorhousefx · 07-19-2006, 08:45 AM

I have the montior in a separate power strip. Like I said, it is maybe 2 years old and never did this before. I moved the wireless router last night and I have not noticed any big shakes like it has been doing, but it still has the minro ones.

Could the router still be too close? It is probably about 2 feet away and a foot above the monitor.

**Terrister** · 07-19-2006, 09:25 AM

When you unplug the router, does it go away?

**MunkyPhil** · 07-19-2006, 09:47 AM

I read another thread here today (can't remember where) that vaguely concluded that heat was causing shakes on a CRT monitor. Could that be part of the problem by any chance or do you have an LCD version?

poorhousefx · 07-19-2006, 11:14 AM

It is a CRT. When I got it I didn't have a lot of $$ so I go that. It has been hot here but I have had the AC on for a week. Plus like I said, this is the first time this is happening in 2 years. I am starting to lean towards my monitor probably crapping the bed soon.

**MunkyPhil** · 07-19-2006, 11:46 AM

CRTs will do that eventually anyway, let's see if we can save this one for now. Did you unplug the router completely to see whether the shaking continued?

poorhousefx · 07-19-2006, 06:59 PM

yeah, when I moved the router I unplugged it all (power cables and ethernet) and left it that way for a bit while I moved it. Then before connecting it I just messed with photoshop and other programs and still had the shake. However, I did notcie it is less frequent then and even so now with the router moved and connected. Could it still be too close? I am not sure how much further I could move it.

**Terrister** · 07-19-2006, 08:36 PM

You may be able to shield the router from the monitor without moving it. A piece of metal between the monitor and router should be enough, unless it is coming from the cables.

**Ralck** · 07-19-2006, 08:55 PM

If moving away the router doesn't help, try bumping up the refresh rate to 75 or 80Hz. That can often get a little more life out of a dying CRT (I had this happen to me, and bumping up like that helped for a little while).
The other thing to try, is getting some old aluminum or steel sides to cases, and putting them around your monitor on the sides, top, and back. This will act as another layer of shielding, which could help further isolate the monitor and make sure it's not Electromagnetic interference.

poorhousefx · 07-20-2006, 07:26 PM

I bumped the refresh to 75 and that seems to be the one thing that has helped. The shakes ar estill there but less. Won;t increasing the refresh rat edecrease the monitor life though? I though=t I heard something about that somewhere. If not, I guess I could go to 80.

dai · 07-21-2006, 10:13 AM

go as high as the monitor supports,but don't go over

**Terrister** · 07-21-2006, 03:00 PM

Running high refresh rates will not shorten the life of the monitor.

07-18-2006, 07:25 PM	#1 (permalink)
poorhousefx Registered User Join Date: Jul 2006 Posts: 5 OS: OSX	Sudden Monitor shake Hi: I Have a roughly 1 - 2 year old MAG innovision monitor on a mac mini (OSX). Lately I have been getting a lot of monitor shake. I did notice anything causing interference, at least nothing new. I have always had my modem and card reader on the same shelf nearby and everything else is fairly separated. I do have a router for my wirelsess connection on my laptop which I recently moved but did not think it was that close. So my questio nis, can a wireless router cause this monitor shake if it is too close? Any help would be appreciated. Thanks

07-18-2006, 10:41 PM	#2 (permalink)
Terrister Moderator Hardware Forum Join Date: Apr 2005 Location: West Georgia, USA Posts: 7,098 OS: Xp	Any electronic or electrical device can do this. Normally if all the devices are working well, this will not happen. Normally the monitors have enough shielding to block this. Are they plugged into the same power source? __________________

07-19-2006, 09:25 AM	#4 (permalink)
Terrister Moderator Hardware Forum Join Date: Apr 2005 Location: West Georgia, USA Posts: 7,098 OS: Xp	When you unplug the router, does it go away? __________________

07-19-2006, 09:47 AM	#5 (permalink)
MunkyPhil TSF Enthusiast Join Date: Apr 2006 Location: Liverpool, England Posts: 1,140 OS: Win XP Pro SP2 My System	I read another thread here today (can't remember where) that vaguely concluded that heat was causing shakes on a CRT monitor. Could that be part of the problem by any chance or do you have an LCD version? __________________ "Now I am become death, the destroyer of worlds." - J. Robert Oppenheimer, July 16th 1945. CPU-z -- Memtest -- Speedfan -- Prime95 -- SandraLite Important Power Supply Info -- Applying Thermal Paste -- Posting System Specs

07-19-2006, 11:46 AM	#7 (permalink)
MunkyPhil TSF Enthusiast Join Date: Apr 2006 Location: Liverpool, England Posts: 1,140 OS: Win XP Pro SP2 My System	CRTs will do that eventually anyway, let's see if we can save this one for now. Did you unplug the router completely to see whether the shaking continued? __________________ "Now I am become death, the destroyer of worlds." - J. Robert Oppenheimer, July 16th 1945. CPU-z -- Memtest -- Speedfan -- Prime95 -- SandraLite Important Power Supply Info -- Applying Thermal Paste -- Posting System Specs Last edited by MunkyPhil; 07-19-2006 at 11:56 AM.

07-19-2006, 08:45 AM	#3 (permalink)
poorhousefx Registered User Join Date: Jul 2006 Posts: 5 OS: OSX	I have the montior in a separate power strip. Like I said, it is maybe 2 years old and never did this before. I moved the wireless router last night and I have not noticed any big shakes like it has been doing, but it still has the minro ones. Could the router still be too close? It is probably about 2 feet away and a foot above the monitor.

07-19-2006, 11:14 AM	#6 (permalink)
poorhousefx Registered User Join Date: Jul 2006 Posts: 5 OS: OSX	It is a CRT. When I got it I didn't have a lot of $$ so I go that. It has been hot here but I have had the AC on for a week. Plus like I said, this is the first time this is happening in 2 years. I am starting to lean towards my monitor probably crapping the bed soon.

07-19-2006, 06:59 PM	#8 (permalink)
poorhousefx Registered User Join Date: Jul 2006 Posts: 5 OS: OSX	yeah, when I moved the router I unplugged it all (power cables and ethernet) and left it that way for a bit while I moved it. Then before connecting it I just messed with photoshop and other programs and still had the shake. However, I did notcie it is less frequent then and even so now with the router moved and connected. Could it still be too close? I am not sure how much further I could move it.

07-19-2006, 08:36 PM	#9 (permalink)
Terrister Moderator Hardware Forum Join Date: Apr 2005 Location: West Georgia, USA Posts: 7,098 OS: Xp	You may be able to shield the router from the monitor without moving it. A piece of metal between the monitor and router should be enough, unless it is coming from the cables. __________________

07-19-2006, 08:55 PM	#10 (permalink)
Ralck TSF Enthusiast Join Date: Dec 2004 Posts: 1,454 OS: 98SE/XP PRO/FC4 My System	If moving away the router doesn't help, try bumping up the refresh rate to 75 or 80Hz. That can often get a little more life out of a dying CRT (I had this happen to me, and bumping up like that helped for a little while). The other thing to try, is getting some old aluminum or steel sides to cases, and putting them around your monitor on the sides, top, and back. This will act as another layer of shielding, which could help further isolate the monitor and make sure it's not Electromagnetic interference. __________________ Power Supply Info Everyone Should Read! How to Post Your System Specs

07-20-2006, 07:26 PM	#11 (permalink)
poorhousefx Registered User Join Date: Jul 2006 Posts: 5 OS: OSX	I bumped the refresh to 75 and that seems to be the one thing that has helped. The shakes ar estill there but less. Won;t increasing the refresh rat edecrease the monitor life though? I though=t I heard something about that somewhere. If not, I guess I could go to 80.

07-21-2006, 10:13 AM	#12 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,620 OS: win 7 32x 64x rtm	go as high as the monitor supports,but don't go over __________________

07-21-2006, 03:00 PM	#13 (permalink)
Terrister Moderator Hardware Forum Join Date: Apr 2005 Location: West Georgia, USA Posts: 7,098 OS: Xp	Running high refresh rates will not shorten the life of the monitor. __________________