- Apr 21, 2014
- 4
- 0
- 4,510
Got what I think is an odd situation going on... but after checking the forums, it seems it's not that uncommon. Though I haven't seen a real solution to my particular problem.
I've got an older desktop gaming rig I built back in 2006. I replaced the PSU a few years ago (it has a 700 Watt Corsair in it now) and the GPU (currently a Galaxy GeForce GTX 470 Fermi) back in 2010. Up until recently it's been running great. But all of a sudden I started having issues with what I thought was my graphics card. On rebooting it would go to the Win 7 Welcome screen, then go black. The monitor's back light is on, but no image is coming through. Sometimes the monitor would go into power saver mode, and I was having issues with the whole rig rebooting, but I managed to eliminate those two problems.
In Safe Mode I discovered it was hanging on the well-known Classpnp.sys issue, so I did all the related things found on the Internet to resolve that issue (updated the mobo BIOS, ran debug mode, last known good config, system restore, updated drivers; one by one checked all the start-up programs, the RAM, any recent Windows updates, and all attached devices, etc.)... with no luck.
Thinking it was the GPU I took out the Galaxy 470 and installed an even older XFX GeForce 7950GX2... and it loaded just fine. Until I tried to install the appropriate Nvidia driver. When I did it went back to exact same black screen issue I originally had. So I uninstalled that MUCH older Nvidia driver and rebooted the machine. Turns out, it would ALWAYS load to desktop without issue... as long as no Nvidia driver was attached to it.
So I tried this with the Galaxy 470 and the exact same thing happened. I even tried installing several different (older) drivers with absolutely no luck. Even the old, default Nvidia driver that Windows auto installs (there's now way to stop it with Win 7 Home Premium despite what all the many instructions on the Web say) doesn't work. As long as an Nvidia driver is not installed, it works (though not at the resolution I want - max is 1600x1200). I can replicate the issue without fail.
Anyone have an idea as to what's causing this? Is the card going out? If so, why is the exact same thing happening on two different cards? And why will it run at 1600x1200 (without a driver)? Is it the driver, the mobo... or the power supply?
Thanks!
(Older) System Specs:
ASUS P5W DH Deluxe mobo
Intel Core 2 Duo 2.4 Ghz (OC'd to 3.2)
4 gigs Corsair XMS2
Win 7 Home Premium Service Pack 1 64-bit
I've got an older desktop gaming rig I built back in 2006. I replaced the PSU a few years ago (it has a 700 Watt Corsair in it now) and the GPU (currently a Galaxy GeForce GTX 470 Fermi) back in 2010. Up until recently it's been running great. But all of a sudden I started having issues with what I thought was my graphics card. On rebooting it would go to the Win 7 Welcome screen, then go black. The monitor's back light is on, but no image is coming through. Sometimes the monitor would go into power saver mode, and I was having issues with the whole rig rebooting, but I managed to eliminate those two problems.
In Safe Mode I discovered it was hanging on the well-known Classpnp.sys issue, so I did all the related things found on the Internet to resolve that issue (updated the mobo BIOS, ran debug mode, last known good config, system restore, updated drivers; one by one checked all the start-up programs, the RAM, any recent Windows updates, and all attached devices, etc.)... with no luck.
Thinking it was the GPU I took out the Galaxy 470 and installed an even older XFX GeForce 7950GX2... and it loaded just fine. Until I tried to install the appropriate Nvidia driver. When I did it went back to exact same black screen issue I originally had. So I uninstalled that MUCH older Nvidia driver and rebooted the machine. Turns out, it would ALWAYS load to desktop without issue... as long as no Nvidia driver was attached to it.
So I tried this with the Galaxy 470 and the exact same thing happened. I even tried installing several different (older) drivers with absolutely no luck. Even the old, default Nvidia driver that Windows auto installs (there's now way to stop it with Win 7 Home Premium despite what all the many instructions on the Web say) doesn't work. As long as an Nvidia driver is not installed, it works (though not at the resolution I want - max is 1600x1200). I can replicate the issue without fail.
Anyone have an idea as to what's causing this? Is the card going out? If so, why is the exact same thing happening on two different cards? And why will it run at 1600x1200 (without a driver)? Is it the driver, the mobo... or the power supply?
Thanks!
(Older) System Specs:
ASUS P5W DH Deluxe mobo
Intel Core 2 Duo 2.4 Ghz (OC'd to 3.2)
4 gigs Corsair XMS2
Win 7 Home Premium Service Pack 1 64-bit
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