Did you do a clean install? Not just reinstalling, but specifying to do a clean install where it will completely remove all settings previously applied?
Case COOLERMASTER COSMOS SE GAMING TOWER (Windowed)
Processor (CPU) Intel® Core™i7 Quad Core Processor i7-4790k (4.0GHz) 8MB Cache
Motherboard Gigabyte Z97X Gaming 3: ATX, LG1150, USB 3.0, SATA 6GBs, XFIRE/SLI
Memory (RAM) 16GB KINGSTON HYPER-X FURY DUAL-DDR3 1600MHz (2 x 8GB)
Graphics Card 3GB NVIDIA GEFORCE GTX 780 Ti - 2 DVI, HDMI, DP - 3D Vision Ready
2nd Graphics Card NONE
3rd Graphics Card NONE
1st Hard Disk 2TB 3.5" SATA-III 6GB/s HDD 7200RPM 64MB CACHE
2nd Hard Disk NONE
RAID NONE
M.2 SSD Drive NONE
1st DVD/BLU-RAY Drive 24x DUAL LAYER DVD WRITER ±R/±RW/RAM
2nd DVD/BLU-RAY Drive NONE
Memory Card Reader NONE
Power Supply CORSAIR 650W VS SERIES™ VS-650 POWER SUPPLY
Processor Cooling Corsair H100i Hydro Series High Performance CPU Cooler
Extra Case Fans NONE
Fan Controller NONE
Sound Card Asus Xonar DG 5.1 SoundCard & Headphone AMP (Award Winner)
Wireless/Wired Networking WIRELESS 802.11N 300Mbps PCI-E CARD
Wireless Router/HomePlugs NONE
USB Options MIN. 2 x USB 3.0 & 4 x USB 2.0 PORTS @ BACK PANEL + MIN. 2 FRONT PORTS
Firewire NONE
TV Card NONE
Power Cable 1 x 1 Metre UK Power Cable (Kettle Lead)
Operating System Genuine Windows 7 Home Premium 64 Bit w/SP1 - inc DVD & Licence
DVD Recovery Media Windows 7 Home Premium (64-bit) DVD with paper sleeve
Office Software FREE 30 Day Trial of Microsoft® Office® 365
Anti-Virus BULLGUARD INTERNET SECURITY - FREE 90 DAY TRIAL
Monitor NONE
2nd Monitor NONE
DVI-D & HDMI Monitor Cables NONE
Eyefinity / GeForce 3D Vision NONE
Keyboard & Mouse Razer® Black Widow 2014 Ultimate Mechanical Gaming Keyboard
Mouse NONE
Gaming Mouse Pad NONE
NVIDIA SHIELD™ NONE
Speakers NONE
Webcam NONE
Headsets NONE
Surge Protection NONE
Cable Tidy NONE
Printer NONE
External Hard Drive NONE
Warranty 3 Year Standard Warranty (1 Month Collect & Return, 1 Year Parts, 3 Year Labour)
Change to: 3 Year Silver Warranty (1 Year Collect & Return, 1 Year Parts, 3 Year Labour)
Delivery 2 - 3 DAY DELIVERY TO REPUBLIC OF IRELAND
Build Time Standard Build - Approximately 7 to 9 working days
When you go to install them, select a custom install, then on the first window where it shows which components will be installed, make sure you tick "perform a clean installation" under the components window.
Could also try re seating the GPU if you don't get the drivers to fix it.
Open up the side panel.
Ground yourself
Remove the mounting screws
Depress the tab holding the card into the slot by reaching under it then gently pull up.
Press it back in firmly and reverse the steps above, boot the machine and see if it works.
If you have done a clean installation fo the drivers and it has not fixed it then it could be a GPU issue, or (very unlikely) an issue with the connection of the cable on the GPU or monitor.
My machine is about 2 weeks old and it was fine two days ago this just happened today.
Ive red some other peoples posts and they said its the moniter refrsh rate
i dont have another moniter what you mean video cable like the blue on i forget whats its called or a hdmi cable but when i change it to hdmi it says no signal
When you change it to HDMI you will need to go into the monitor's OSD and change the input to HDMI rather than VGA or whatever you have plugged in at the moment.
If the cable you are currently using is VGA then I would highly recommend changing it for HDMI. With VGA you will be losing image quality with your 780ti.
If the cable you are currently using is VGA then I would highly recommend changing it for HDMI. With VGA you will be losing image quality with your 780ti.