660ti Windforce oc edition UNSTABLE AT DEFAULT CLOCK SPEEDS

[therutz]

Hi all

After HOURS of talking to NVidia about the Black Screen problem I am having with this card we have figured out that it IS the CARD to blame and NOT
a driver issue as suspected at first.

If I leave all clocks at default IE 1111mhz on the GPU (out the box) In GRID 2 and in CALL OF DUTY BLACK OPS 2 I get a BLACK SCREEN within minutes of playing the games.

I cannot remember where this was purchased from and is under a year old and Before I even attempt to send it to Gigabyte I was wondering if ANYONE knows what I can try next ie BIOS for the card etc . I also need to know how to flash the bios on this card if this is a way to fix it .......

Any help appreciated .

[Gloup_Gloup]

Hi therutz,


About flash a nvidia card...
http://www.overclock.net/t/1211151/flashing-nvidia-bios-within-windows

[therutz]

cheers for the info chap

[therutz]

Well I Flashed the card with success and I STILL have the same problem
The only way to make this gigabyte windforce 660ti with 1111mhz boost stable is to TURN THE CLOCK DOWN

man this sucks

Wont go for gigabyte again as I remember having similar problems with the gigabyte 480 windforce card where I had to add volts to get it to run at rated speeds ....

What to do, what to do hhhhm

Do I just live with underclocked card or do I send it back to gigabyte......  

[TFisher]

Is your psu up to the task?

[therutz]

 

Yes it can run a GTX 480 and run a ATI7970 and is plenty good enough it is a CORSAIR HX520 and I have calculated the required power for the card and it states On your average system the card requires you to have a 450~500 Watt power supply unit

I am running a NON OC system i7 970 with 12gig ddr3 dominator ram under clocked at 1800mhz with 1.5v and a corsair ssd and a WD 1tb hard drive

also I have a dvd rw so not much stress there.

It seems to be on this rig that it just has black screen (game still running in the background) and I have to CTRL ALT and DELETE out the game shut the process down and I am back to my desktop now if it WAS PSU related I would have to normally restart the machine or have shutdown crashes

Plus if you Google the symptoms ALOT OF PEOPLE are having EXACTLY the same issue's

I have used a PSU calculator to check my rig and that stated I am fine .... I have not tried this card in my other rig (1200w psu) as I would have to uninstall ati drivers scan for leftovers and delete then install and test then revert back (to much crap to do and I know its not psu related so no point).
 

As I say works fine with the same Voltage at lower clock speeds but not at out the box speeds ...