My Gigabyte gtx-570 graphics card is connected via HDMI cable to a AOC LED external monitor. At fairly regular intervals about 10 minutes apart, the screen goes completely blank/black (but monitor seems to detect signal) for about 5 seconds and then everything is back to normal. My system also has a history of tiny electrical leaks to the cabinet, which went away on their own and were never root caused. I believe that if there was still any issue in grounding or fault in the PSU leading to incorrect power supply to the motherboard the system would never come up at all - which it is doing perfectly well at present. I'm also using an APC UPS for backup.
DVI-I and DVI-D (dual link) connections to monitor always work fine. After a week weeks of me noticing this problem, my DVI-I and HDMI port on the graphics card stopped working or giving greenish-yellow output and I sent the card for replacement. Even the replacement card is showing the same issue on HDMI (intermittent blanking). I believe that these problems are unrelated (HDMI issue could be due to some handshaking fault or a known issue in the driver or VBIOS).
My fear is that this could be (seems unlikely) a pre-cursor to the complete port failure as described above. This might seem to indicate that there is something wrong in a hardware component other than the graphics card - but as I said in that case system wouldnt really boot up at all. So basically i'm trying to unravel these issues to isolate the root cause.
If the issue is in software/drivers then it's totally tolerable (I have latest Nvidia drivers).
Gigabyte gtx-570, ASUS P8Z68-V PRO/GEN3 mobo, Intel i7 2600, Cooler Master Extreme Power Plus 600W PSU, AOC LED 21.5 inch monitor, APC 600VA Back-UPS
DVI-I and DVI-D (dual link) connections to monitor always work fine. After a week weeks of me noticing this problem, my DVI-I and HDMI port on the graphics card stopped working or giving greenish-yellow output and I sent the card for replacement. Even the replacement card is showing the same issue on HDMI (intermittent blanking). I believe that these problems are unrelated (HDMI issue could be due to some handshaking fault or a known issue in the driver or VBIOS).
My fear is that this could be (seems unlikely) a pre-cursor to the complete port failure as described above. This might seem to indicate that there is something wrong in a hardware component other than the graphics card - but as I said in that case system wouldnt really boot up at all. So basically i'm trying to unravel these issues to isolate the root cause.
If the issue is in software/drivers then it's totally tolerable (I have latest Nvidia drivers).
Gigabyte gtx-570, ASUS P8Z68-V PRO/GEN3 mobo, Intel i7 2600, Cooler Master Extreme Power Plus 600W PSU, AOC LED 21.5 inch monitor, APC 600VA Back-UPS
