failing Radeon 2600XT head?

[williemyers]

hey guys...
My MacPro 3,1 has been successfully using it's ATI Radeon 2600XT to drive 2 x 25" ASUS monitors for about 3 years now. That would be under OSX 10.8.5 or OSX 10.11.3.
Now, occasionally on restarts - or some bootups - the "secondary" monitor shows nothing, reports "DVI no signal" and goes to sleep. The "primary" monitor (the one with the menu bar) has no such problems.
I have switched monitors and cables in all possible combinations to make sure that it's not a monitor or cable issue. I have removed & reseated all memory and the GPU and no difference. I have run extended AHT and it shows no problems.
Does it sound like I have a video card about to die?

thanks in advance

 

[MacVidCards]

Yes it does. Clean the gold fingers on PCIE slot part of card, and start looking for a replacement

 

[Machines]

hey guys...
My MacPro 3,1 has been successfully using it's ATI Radeon 2600XT to drive 2 x 25" ASUS monitors for about 3 years now. That would be under OSX 10.8.5 or OSX 10.11.3.
Now, occasionally on restarts - or some bootups - the "secondary" monitor shows nothing, reports "DVI no signal" and goes to sleep. The "primary" monitor (the one with the menu bar) has no such problems.
I have switched monitors and cables in all possible combinations to make sure that it's not a monitor or cable issue. I have removed & reseated all memory and the GPU and no difference. I have run extended AHT and it shows no problems.
Does it sound like I have a video card about to die?

thanks in advance

Learn how to re-thermal paste your video card and also regularly remove all dust from the cooler . Older cards die because they get too hot . Dry paste and dust contribute to over-heating situations .