I've been using this system for some time, with excellent results, but decided to upgrade to a new video card with 4GB. After installing the new card, initially the system would not even POST; but Gigabyte pushed a new BIOS update (to rev 7), and that solved *that* problem.
However, I've had ongoing issues with this video card... periodically, it just... well, goes nuts... this happens most often (I think) when it's changing video modes. The screen will go black, keyboard and mouse don't do anything recognizable (for example, cannot reboot computer), the hard-disk LED is stuck on, and that's it... Have to power down the system - but then when I try to reboot, it often won't; I'll get a disk light for a few seconds, then nothing.
I've tried various tricks to get the computer to boot after this, with various success, which makes me feel like it's just random... often, hooking up a smaller monitor would work, other times unplugging and replugging disk drives worked, unplugging and replugging video card, in many cases it took multiple iterations of these to succeed.
However, once I got it to boot, everything would run fine. This didn't happen too often, maybe once a week or less, but it was so intimidating that I just switched back to my old card.
I checked power usage of the system with this card (using a Kill-A-Watt P3), with Skyrim running, set to Ultra, on 2560x1600 resolution, and it was drawing about 330W, so the 750W power supply should be fine. I also tried this with my earlier 27" 2560x1440 monitor, and this event still occurred.
Does anyone have any ideas on what is causing this, and how I might resolve it??
My system:
Core i7-3820, OC to 4GHz
Gigabyte X79-UP4
Old video card: MSI GTX 670
Monitor: Yamakasi 301 Sparta (30" 2560x1600)
New video card: Gigabyte GTX 970 (GV-N970WF30C-4GD)
RAM 16GB
Windows 7 64bit
Power Supply: Corsair TX750
However, I've had ongoing issues with this video card... periodically, it just... well, goes nuts... this happens most often (I think) when it's changing video modes. The screen will go black, keyboard and mouse don't do anything recognizable (for example, cannot reboot computer), the hard-disk LED is stuck on, and that's it... Have to power down the system - but then when I try to reboot, it often won't; I'll get a disk light for a few seconds, then nothing.
I've tried various tricks to get the computer to boot after this, with various success, which makes me feel like it's just random... often, hooking up a smaller monitor would work, other times unplugging and replugging disk drives worked, unplugging and replugging video card, in many cases it took multiple iterations of these to succeed.
However, once I got it to boot, everything would run fine. This didn't happen too often, maybe once a week or less, but it was so intimidating that I just switched back to my old card.
I checked power usage of the system with this card (using a Kill-A-Watt P3), with Skyrim running, set to Ultra, on 2560x1600 resolution, and it was drawing about 330W, so the 750W power supply should be fine. I also tried this with my earlier 27" 2560x1440 monitor, and this event still occurred.
Does anyone have any ideas on what is causing this, and how I might resolve it??
My system:
Core i7-3820, OC to 4GHz
Gigabyte X79-UP4
Old video card: MSI GTX 670
Monitor: Yamakasi 301 Sparta (30" 2560x1600)
New video card: Gigabyte GTX 970 (GV-N970WF30C-4GD)
RAM 16GB
Windows 7 64bit
Power Supply: Corsair TX750
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