Hello, I tried overclocking my 550ti from 951 Mhz (default) to 1020 Mhz using the EVGA Precision X 3.0.2. Then, I used the EVGA OC Scanner X to test my overclock. The video card did not have artifacts or any problem. I tested the GPU using the overclocked values on 3dMark11 and I noticed that I am getting lesser performance on my overclocked values than the default values. On Diablo 3 I am getting an average of 50 fps on the default clocks but when the GPU is overclocked the frame rate goes down around 20 fps.
Nov 01, 2012 I just bought and installed a EVGA Geforce GTX 550 Ti 2GB recently. It installed fine, drivers installed fine, and Diablo III runs smooth on 1080p with high settings. But I am getting a problem where randomly the audio and video will disappear to a black screen while the. Find great deals on eBay for evga nvidia geforce gtx 750 ti. Shop with confidence.
I am using Nvidia 301.42 and I have tried uninstalling and reinstalling the drivers. Its downclocking into 2d clocks which means your pushing it too hard. I find these cards OC to 1000 Mhz Core Clock very easily almost every time with no problems, thats where i usually have mine but iv tested mine up to 1022 Mhz Core Clock stable with no problems in any benchmark, anything more and it downclocks. Try 1000 Mhz and see what happens and post back or up your voltage a bit, my voltage is at 1.112 and yours is at only 1.087 so that could also be it. Keep an eye on the temps though when doing this and test it to see if its stable. Sounds like your card is protecting its self from damage and clocking down on you, but i heard it does that around 97 degrees Celsius so i dunno.
I have that same card and overclocked it a bit so i might be able to help. First off lets not forget its ALREADY overclocked from the factory. Google the 550 reference clocks and see what i mean;) Also when i overclock this card with evga software or any others, i get 0 artifacts and i simply get a driver crash (when gpu pushed too far) and im using 301.42-desktop-win7-winvista-64bit-english-whql i never did try the previous driver i just bought my card.
So with stress testing to make sure its stable the most i can overclock this thing to is 971/2188 (at stock voltage) if i put the core to 1,000 my OS crash's and lockups instantly and i have to reboot! So i wouldn't jump up straight to a 1,000 if i were you start at 10mhx increments and test for a bit then move up some more. The clocks i mentioned (max) are within about 10/15mhz of causing errors, so i wouldn't expect anyone to get more than that at stock voltage. I can't say anything about higher voltage speeds though i havn't tried that yet and i'm not too interested it makes me a bit nervous over volting, even though i do it 24/7 on all other pc parts.
I'd love to be able to get it running at 1055/1260MHz but i don't know what this guy has done etc Lastly i did experiments with covering the outtake exhaust inside the case and it made the temps way worse. An interesting note, like i said i use 1000Mhz usually and when i upped mine to 1022 and ran Max Payne 3, it stuttered more, so thats means its struggling at my stock voltage, this is why i now leave it at 1000 Mhz, its a decent boost from the OCed FPB stock settings and it runs everything perfectly at stock voltage. If you can get it to 1000 Mhz, leave it there and its good to go! Also i don't touch the memory settings, it just doesn't do much and can make it unstable, plus the FPB model has much higher memory settings than the stock model anyways.