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Serious problem with graphic card

yszty

New Member
Hello everyone, i need help with that "strange" problem. I installed Win 8 64bit with my old graphic card 9500gt inside, everything was perfect. Just after windows installed, i shut him down and changed graphic to 660gtx, i did it this way cause 660gtx is so big and to use it i must remove one SATA connection (dvd). With 9500gt windows works rly good but when i change to 660gtx i can't see single word, screen is blurry and windows 8 don't recognise my 660. Everything is fine on Win XP. I don't know what to do right now. Can it be problem with my motherboard with bios update max to Win 7 64bit, Win8 is not supported anymore by this board. If yes, there is any solution with NOT buying new board? Sorry for my english.
 

My Computer

System One

  • OS
    Win 8

CountMike

Well-Known Member
VIP Member
Guru
Did you cleanly uninstall drivers for the old video card first ?
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home made
    CPU
    AMD Ryzen7 2700x
    Motherboard
    Asus Prime x470 Pro
    Memory
    16GB Kingston 3600
    Graphics Card(s)
    Asus strix 570 OC 4gb
    Hard Drives
    Samsung 960 evo 250GB
    Silicon Power V70 240GB SSD
    WD 1 TB Blue
    WD 2 TB Blue
    Bunch of backup HDDs.
    PSU
    Sharkoon, Silent Storm 660W
    Case
    Raidmax
    Cooling
    CCM Nepton 140xl
    Internet Speed
    40/2 Mbps
    Browser
    Firefox
    Antivirus
    WD

OldGuyGeek

New Member
Power User
A clean install of the 660 NVidia drivers should work, but if you can't read anything good enough to do a clean install, put the 9500 back in. Then uninstall the NVidia drivers and allow Windows to run from the generic drivers.

Then put your 660 back in, download and install the correct NVidia drivers for your 660.

Don't worry about your bios not officially supporting Win 8. It should be fine.
 

My Computer

System One

  • OS
    Windows 8.1 Pro with Media Center
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Self Built
    CPU
    Intel I-7 860
    Motherboard
    Asus P7B
    Memory
    8GB
    Graphics Card(s)
    Nvidia 580
    Monitor(s) Displays
    Acer (Primary), Asus (secondary), Sony TV (third)
    Screen Resolution
    1920 x 1080
    Hard Drives
    Kingston 128GB SSD Windows 8 Boot Drive
    WD Black 1 TB (2 ea)
    WD Red 3 TB
    WD Black 500GB
    Keyboard
    MS 1000
    Mouse
    MS Flip
    Internet Speed
    Verizon FIOS 35/35
    Browser
    IE 11, Google Chrome, Firefox, Opera, Safari
    Antivirus
    Windows 8 Defender (MS Security Essentials)

yszty

New Member
Problem is that, Windows 8 don't see my gtx660... i can't even install drivers cause it says when i want install driver for gtx "Graphic card not detected" :/ maybe clean install of Win8 with already inserted gtx will help cause he will automaticlly find it..
 

My Computer

System One

  • OS
    Win 8

Nemix

New Member
Power User
Is you power supply sufficient for the GTX 660 graphics card and have you checked to make sure you've connected the external
6-pin PCIe power connector from your power supply to your GTX 660 graphics card?
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    CPU
    Intel Core i7-2670QM
    Memory
    Samsung 8GB
    Graphics Card(s)
    NVIDIA GT 555M
    Hard Drives
    Intel 525 120GB | HGST Travelstar 1TB
    Mouse
    CM Storm Xornet | Microsoft Sculpt Comfort
    Internet Speed
    25 Mbps | 600 Kbps
    Other Info
    Seagate Backup Plus 1TB

yszty

New Member
Yep, it is connected :/ i have similar display problem to "Bus artifacts", if u google it u will see what i'm talking about.
 

My Computer

System One

  • OS
    Win 8

Nemix

New Member
Power User
Did you buy the card brand new or used from someone?

Are you certain the power supply is sufficient for the GTX 660, what is the rated watts of your power supply?

Also, does you motherboard's BIOS have a setting to lock the PCI Bus speed at 100Mhz?
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    CPU
    Intel Core i7-2670QM
    Memory
    Samsung 8GB
    Graphics Card(s)
    NVIDIA GT 555M
    Hard Drives
    Intel 525 120GB | HGST Travelstar 1TB
    Mouse
    CM Storm Xornet | Microsoft Sculpt Comfort
    Internet Speed
    25 Mbps | 600 Kbps
    Other Info
    Seagate Backup Plus 1TB
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