monitor issues

aslowdodge · Nov 12, 2012, 09:45 PM

Hi All,

I have a macpro 4.1 (2 x 2.26 quadcores) with 32gb of ram.

I am running a dell 30 in monitor (2556x1600) and a samsung 20 in monitor (1600x1200). At first I ran just the 30 inch and all was fine. Now with 2 monitors hooked up after a while about 1/2 hours the monitors act weird. I get ghosts of windows and images: any ideas?

ColdCase · Nov 12, 2012, 10:31 PM

What video card are you using?

Is its cooling fan spinning? Any dust in the fins?

Could be a video card defect.

Perhaps try vacuuming out the card.

aslowdodge · Nov 12, 2012, 10:53 PM

there are 2 cards. Each is an NVIDIA GeForce GT 120 with 512mb and each one runs one monitor. I'll try cleaning them out

ColdCase · Nov 13, 2012, 07:46 AM

Both cards same problem? starts at the same time? You may want to clean out the power supply too.

aslowdodge · Nov 13, 2012, 01:27 PM

Quote:

Originally Posted by ColdCase

Both cards same problem? starts at the same time? You may want to clean out the power supply too.

I will dust out everything. Funny it started after adding the 2nd monitor . I doubt it made a difference, but I added 2 more SSD drives in the optical bay at the same time.

ColdCase · Nov 13, 2012, 04:47 PM

Did you also add the second GT 120 at the same time? If so I'd suspect the power supply is getting lazy, or you have perhaps a loose connection somewhere.

aslowdodge · Nov 13, 2012, 05:59 PM

Quote:

Originally Posted by ColdCase

Did you also add the second GT 120 at the same time? If so I'd suspect the power supply is getting lazy, or you have perhaps a loose connection somewhere.

the 2nd card was already installed. I will open it up and clean everything and check to see if anything is partially unseated.

Nov 12, 2012, 09:45 PM	#1
aslowdodge macrumors newbie Join Date: Nov 2012	monitor issues Hi All, I have a macpro 4.1 (2 x 2.26 quadcores) with 32gb of ram. I am running a dell 30 in monitor (2556x1600) and a samsung 20 in monitor (1600x1200). At first I ran just the 30 inch and all was fine. Now with 2 monitors hooked up after a while about 1/2 hours the monitors act weird. I get ghosts of windows and images: any ideas?
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Nov 12, 2012, 10:31 PM	#2
ColdCase macrumors 6502a Join Date: Feb 2008 Location: NH	What video card are you using? Is its cooling fan spinning? Any dust in the fins? Could be a video card defect. Perhaps try vacuuming out the card. __________________ 2013 15 inch rMBP and a few other MacBooks, a couple iMacs, AppleTV, Airport Extreme, Time Capsule, MacPro early 08, G4 Dual gigbit enet, Cube G4, some older stuff.
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Nov 13, 2012, 07:46 AM	#4
ColdCase macrumors 6502a Join Date: Feb 2008 Location: NH	Both cards same problem? starts at the same time? You may want to clean out the power supply too. __________________ 2013 15 inch rMBP and a few other MacBooks, a couple iMacs, AppleTV, Airport Extreme, Time Capsule, MacPro early 08, G4 Dual gigbit enet, Cube G4, some older stuff.
	0

Nov 13, 2012, 04:47 PM	#6
ColdCase macrumors 6502a Join Date: Feb 2008 Location: NH	Did you also add the second GT 120 at the same time? If so I'd suspect the power supply is getting lazy, or you have perhaps a loose connection somewhere. __________________ 2013 15 inch rMBP and a few other MacBooks, a couple iMacs, AppleTV, Airport Extreme, Time Capsule, MacPro early 08, G4 Dual gigbit enet, Cube G4, some older stuff.
	0

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Nov 12, 2012, 10:53 PM	#3
aslowdodge Thread Starter macrumors newbie Join Date: Nov 2012	there are 2 cards. Each is an NVIDIA GeForce GT 120 with 512mb and each one runs one monitor. I'll try cleaning them out
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