Hi,
I have those two high end graphics cards : Asus GTX 980Ti Matrix Platinum 6Gb and MSI GTX 980 Gaming 4Gb that have the exact same problem.
The computer starts, doesn't boot, and then beeps, and shortly after the screen turns on but remains black (nothing is displayed but it's getting a signal). Then after a minute it beeps again, and so on. So the graphics cards don't seem completely dead.
I've tried with several motherboard, same results.
I've tried the reflow with flux with no change at all.
The Asus board as convenient voltage measuring points, I'm getting only 0.45V at the VGPU point, and 1.05V at the VMEM and 1.0V at VPLL.
I'm not sure if the voltage is supposed to be lowered when the card is not is actual 3D use, but that 0.45V at the GPU seems too low which makes me think there a problem with the voltage regulation somewhere.
I can't find a short on the mosfets, and otherwise it wouldn't start at all in my experience.
I've checked a lot of components, fuses, resistors, capacitors, chokes, they all appear to be "fine". Keep in mind, my equipement is the bare minimum, and outside of checking continuity and resistance value, I can't do much...yet. Those current regulation chips would be hard to analyze without the proper equipement. I'm ready to invest a bit if I can repair those cards. They're still worth quite a bit, especially the Asus.
Anybody has experience with these graphics card and this particular issue ? Or any insight into where I could find the source of the problem ?
I have those two high end graphics cards : Asus GTX 980Ti Matrix Platinum 6Gb and MSI GTX 980 Gaming 4Gb that have the exact same problem.
The computer starts, doesn't boot, and then beeps, and shortly after the screen turns on but remains black (nothing is displayed but it's getting a signal). Then after a minute it beeps again, and so on. So the graphics cards don't seem completely dead.
I've tried with several motherboard, same results.
I've tried the reflow with flux with no change at all.
The Asus board as convenient voltage measuring points, I'm getting only 0.45V at the VGPU point, and 1.05V at the VMEM and 1.0V at VPLL.
I'm not sure if the voltage is supposed to be lowered when the card is not is actual 3D use, but that 0.45V at the GPU seems too low which makes me think there a problem with the voltage regulation somewhere.
I can't find a short on the mosfets, and otherwise it wouldn't start at all in my experience.
I've checked a lot of components, fuses, resistors, capacitors, chokes, they all appear to be "fine". Keep in mind, my equipement is the bare minimum, and outside of checking continuity and resistance value, I can't do much...yet. Those current regulation chips would be hard to analyze without the proper equipement. I'm ready to invest a bit if I can repair those cards. They're still worth quite a bit, especially the Asus.
Anybody has experience with these graphics card and this particular issue ? Or any insight into where I could find the source of the problem ?
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