- Aug 19, 2014
- 3
- 0
- 4,510
Specs
CPU: Intel i7 2.9GHz Quadcore
Mobo: Asrock H71M-DGS
GPU: Gigabyte Geforce GTX 660
PSU: Corsair Builder Series 550W
RAM: 8GB
HDD: Hitachi MX3 1TB Hard Drive (formerly external)
OS: Windows 7 SP1 Home Premium Edition
Monitors: Hanns-G PnP Monitor 19.1" - Samsung S22A300H HD Monitor 21.5"
Late last week my hard drive died. I replaced it with an external drive that was mostly empty, formatted it and installed Windows 7 on it. That's when I found out that my graphics card was dead (formerly a Geforce GTX 550 Ti). Only one monitor was working (the PnP) and it was stuck on VGA graphics.
So I decided to upgrade it while I had the chance, picking up the GTX 660 and a larger power supply to go with. I installed them both this morning but found that my HD monitor wasn't working; it is switched on and detected by Windows but I can't get an image on it. The other monitor, now my primary display, works but a few seconds after I log into Windows it will switch itself off. Occasionally it will switch back on again only to switch off a few seconds later.
Note: I use a surge protector that allows me to plug both monitors and my PC into it, which also turns off the power to both monitors when I switch my PC off. Saves me money.
Safe mode works fine. I've tried uninstalling/reinstalling the drivers in both regular mode (when the screen is on) and safe mode but that hasn't worked. Tried downloaded the latest drivers from the manufacturer's website. Hasn't work. I've tried low resolution mode; didn't work. Uninstalling the drivers and relying on the generic drivers works though I've noticed it will still shut off the monitor for a minute or two after logging in. After that it works fine, though with pretty terrible graphics.
While the monitors are off I can still work in the background; I have audio and can click on things. I tested with a Youtube video. Those seem to make the monitor shut off immediately rather than waiting the ~5 seconds it usually does between on/off cycles.
My current theory is that my PSU isn't quite enough to cover what the new PSU needs; the GTX 660 is massive compared to my last GPU and has two fans to boot. I'd like for that not to be the case.
Any ideas?
CPU: Intel i7 2.9GHz Quadcore
Mobo: Asrock H71M-DGS
GPU: Gigabyte Geforce GTX 660
PSU: Corsair Builder Series 550W
RAM: 8GB
HDD: Hitachi MX3 1TB Hard Drive (formerly external)
OS: Windows 7 SP1 Home Premium Edition
Monitors: Hanns-G PnP Monitor 19.1" - Samsung S22A300H HD Monitor 21.5"
Late last week my hard drive died. I replaced it with an external drive that was mostly empty, formatted it and installed Windows 7 on it. That's when I found out that my graphics card was dead (formerly a Geforce GTX 550 Ti). Only one monitor was working (the PnP) and it was stuck on VGA graphics.
So I decided to upgrade it while I had the chance, picking up the GTX 660 and a larger power supply to go with. I installed them both this morning but found that my HD monitor wasn't working; it is switched on and detected by Windows but I can't get an image on it. The other monitor, now my primary display, works but a few seconds after I log into Windows it will switch itself off. Occasionally it will switch back on again only to switch off a few seconds later.
Note: I use a surge protector that allows me to plug both monitors and my PC into it, which also turns off the power to both monitors when I switch my PC off. Saves me money.
Safe mode works fine. I've tried uninstalling/reinstalling the drivers in both regular mode (when the screen is on) and safe mode but that hasn't worked. Tried downloaded the latest drivers from the manufacturer's website. Hasn't work. I've tried low resolution mode; didn't work. Uninstalling the drivers and relying on the generic drivers works though I've noticed it will still shut off the monitor for a minute or two after logging in. After that it works fine, though with pretty terrible graphics.
While the monitors are off I can still work in the background; I have audio and can click on things. I tested with a Youtube video. Those seem to make the monitor shut off immediately rather than waiting the ~5 seconds it usually does between on/off cycles.
My current theory is that my PSU isn't quite enough to cover what the new PSU needs; the GTX 660 is massive compared to my last GPU and has two fans to boot. I'd like for that not to be the case.
Any ideas?
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