1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

really need some help here!

Discussion in 'Overclocking & Cooling' started by Edgeuk, 13 May 2006.

  1. Edgeuk


    Joined: 6 May 2006

    Posts: 19

    I have just finished a water cooling set-up which consists of FX60 CPU 2 x BFG 7900GTX.

    Now before installing the watercooling everything was working just fine, but since doing so when I boot I get a graphically corrupted boot screen and when windows tries to load it just fails and reboots sometimes, others screen just goes blank.

    I used the Danger Den NV78 GPU blocks and a TDX CPU Block.

    I know the problem is the graphics cards as I have installed them in my other PC and I get the same problem, but even if I try them on their own I get exactly the same problem on both of them - what could I have done to cause this - this is like £800 of hardware I may just have wrecked!!

    I have searched forums and can only think of two possible things:

    1) I used AS5 on the memory and some people say this can cause problems, although other say they use it and it works fine - I have even removed all of the AS5 and used ceramique instead but still no joy.

    2) Crushed the GPU / Memory - I'm not new to this and I did not over tighten the thumb screws so I do not think this is the problem either.

    I cannot think of anything else that can be causing the problem, but would really appreciate the advice of the pro's on this forum.

    Last edited: 13 May 2006
  2. HeadlessChicken

    Wise Guy

    Joined: 6 Aug 2004

    Posts: 2,162

    Location: Norwich

    1) Getting around a swear filter isn't a good idea ;)

    2) sounds like the GPU blocks were not making decent contact with the cores. try putting back on the stock coolers to see if it's ok then.
  3. Edgeuk


    Joined: 6 May 2006

    Posts: 19

    Unfortunately the stock cooler comes with pads, and when I dismantled all the pads were shot.

    I have double checked the contact and it seems to be perfect I have just tightened a bit more to be safe and I still get the same problems. Basically there are multi coloured squares all over the place and the text is all over the place aswell....

    What I find really strange it that the exact same problem is with both cards? I really can't work this one out and I have been building PC for years!
    Last edited: 13 May 2006
  4. Edgeuk


    Joined: 6 May 2006

    Posts: 19

    I appologise for the for the title, but I have just laid out a ton of cash only for this to happen...btw, the ton of cash was with overclockers aswell :)
  5. MikeTimbers


    Joined: 18 Oct 2002

    Posts: 6,964

    Location: New Eltham, London

    Corruption of the graphics shouldn't be heat-related so soon after boot-up but it could be caused by over-tightening the blocks which can bend the PCB. I really would suggest firstly trying the system with another graphics card to confirm the correct functioning of the cpu-cooling.

    If the graphics cards - either individually or together - are artifacting with water-cooling, you must revert to the original heatinks even if that means using no paste at all. Then see what is happening.
  6. Edgeuk


    Joined: 6 May 2006

    Posts: 19

    OK just tried that, but the memory doesn't touch any part of the heatsink, anyways, I couldnt even get a signal to come through my monitor ttrying it his way!