TechSpot

Graphic artifacts

By Edlismange
Jul 12, 2006
  1. Hi, for about a year now I've been having the same problem, which is mainly when I play games I get flickery textures and coloured dots appearing on the screen, then getting worse and ultimatley crashing my computer.

    Recently however, I have been getting various similar problems on my desktop aswell. Coloured dots appear sometimes when I move windows around the screen, and sometimes when I do this the monitor blacks out and shakes for a second (as if I had pressed the degauss button). Programs like media player with visualisations or effects tend to produce more artifacts.

    Also, occasionally, in my web browser, and other programmes with text (this includes menus in my games etc) the text gets distorted, however, if i highlight the text, the distortion goes away. The first artifacts that I notice in games are usually corrupt text graphics.

    Recently, the artifacts were getting so bad that I could barely use my computer. However, I decided to switch the ram into different slots and this seemed to eliminate the artifacts. After a while though, they returned.

    Here are my specs:
    inno3d Nvidia 6800 GT 256 mb
    AMD athlon xp 2600+
    ASUS a7v8x-x mobo
    768 mb ddr ram (2 sticks)
    audigy 2 zs sound card

    I should mention that my card is not overheating (neither is my processor), and that all the correct drivers are installed. I have also formatted several times but the problem persists.
     
  2. N3051M

    N3051M TS Evangelist Posts: 2,115

    Its most likely not enough power going to the card. Try a different power connector to the card from your PSU. Try reseating your vid card.

    Download Speedfan or Everest Home, navigate to the sensors page and post us a report on it. Temps, volts etc. Then tell us the model, watt rating and the little chart of the rails etc from the sticker on the side of your PSU.

    Do you remember of any enviromental changes? hardware/software or power surges etc? any other info?
     
  3. Edlismange

    Edlismange TS Rookie Topic Starter

    Here's my report from Speedfan:

    Fan1: 4856 RPM
    Fan2: 0 RPM
    Fan3: 0 RPM

    Temp1: 43C
    Temp2: 32C
    Temp3: -1C
    Local Temp: 38C
    Remote Temp: 47C
    HD0: 30C

    Vcore1: 1.71V
    Vcore2: 0.00V
    +3.3V: 3.06V
    +5V: 4.70V
    +12V: 12.10V
    -12V: -16.97V
    -5V: -8.78V
    +5V: 4.81V
    VBat: 4.08V

    The sticker on the side of my PSU says that it's a Mercury 400W ATX Switching Power Supply.
    Heres the grid thing:

    V(input) Voltage ¦ Current ¦ Frequency
    -----115V / 230V ¦ 8A / 4A ¦ 50HZ - 60HZ


    V(output)+3.3V +5V +12V ¦-5V -12V +5VSB ¦ PS-ON - POK - COM
    -----------24A 35A 12A ¦ 0.5A 0.8A 2A ¦ GREEN - GRAY - RETURN


    I have already tried switching the power connector to the video card but it made no difference. The only environmental change was that I moved house from a town to a village. The problems started after the move.
     
  4. CrossFire851

    CrossFire851 TS Rookie Posts: 766

    12 amps on the 12volt rail seems to be a bit low, and conisdering it's an after market brand, it's just not giving you that extra juice when you need it most such as gamming.
     
  5. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,431   +28

    For ur card atleast 16A on the 12V rail is recommended.
     
  6. Edlismange

    Edlismange TS Rookie Topic Starter

    Just so everyone knows

    Bought a new powerful power supply which completely sorted the problem, works fine.
     
  7. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,431   +28

    Better late than never eh? :) Good to know that.
     
  8. blitzkrieger00

    blitzkrieger00 TS Rookie

    I wonder if that is the problem that I am having aswell I have a ATI Radeon X1900XTX 512mb with my stock 400w psu on my Guardian case.
     
  9. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,431   +28

    Yes, that would be your problem. 400W is hardly enough for a PC with a card like the X1900XTX.
     
  10. blitzkrieger00

    blitzkrieger00 TS Rookie

    I just ordered a Smilodin case with a 500w PSU with 22amps on the 12V rail would that be ok or should I get a new PSU
     
  11. blitzkrieger00

    blitzkrieger00 TS Rookie

  12. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,431   +28

    You don't really need that case + PSU combo, not to mention that it's a crappy one too. (The PSU that is). For the same price, this is an excellent PSU with 22A on each of its two +12V rails. It's of superb quality and highly recommended.
     
  13. blitzkrieger00

    blitzkrieger00 TS Rookie

    I have to wonder if its a power issue at all though because it hasn't caused my pc to crash at all, and I don't get colored dots. Mainly what happens to me is some textures seem to get stretched out into a spike/triangle shape and sometimes there are missing textures that look like the are holes that extend downward.
    Here is an example of what happens... http://i45.photobucket.com/albums/f91/Blitz_Krieger00/artifactingexample.jpg
     
  14. blitzkrieger00

    blitzkrieger00 TS Rookie

    issue

    I have to wonder if its a power issue at all though because it hasn't caused my pc to crash at all, and I don't get colored dots. Mainly what happens to me is some textures seem to get stretched out into a spike/triangle shape and sometimes there are missing textures that look like the are holes that extend downward.
    Here is an example of what happens...
    http://i45.photobucket.com/albums/f91/Blitz_Krieger00/artifactingexample.jpg
     
  15. blitzkrieger00

    blitzkrieger00 TS Rookie

    sorry for the double post.
     
  16. boyd117

    boyd117 TS Rookie

    Hey I'm getting horrible artifacts on all my games I play and dont know why. My card isn't even good or doesnt require a high psu. It always worked fine but one day it just started screwing up, can anyone help me out?

    specs-

    amd anthlon xp 2.1ghz
    abit kv7
    1gb ddr400
    geforce fx 5700 LE
    400w psu by power max

    I really would like to get this working as I am selling my pc, Just ordered a quad core yesterday :D
     
  17. blitzkrieger00

    blitzkrieger00 TS Rookie

    ...

    I was doing some tests and I found that running my games in window mode seems to fix the problem in most of the games. They return when I switch back though. The video cards temps stay under 55 degrees Celsius, so it doesn't seem to be a heat issue. I really want to get to the bottom of this issue though.
     
  18. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,431   +28

    It might be a driver issue. Try using the drivers that came with the card. Or if you're running those, try upgrading to the latest ones from NVIDIA's site.
     
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