really need some help here!

Edgeuk · 13 May 2006 at 13:24

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.

Thanks

HeadlessChicken · 13 May 2006 at 13:30

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.

Edgeuk · 13 May 2006 at 13:43

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!

Edgeuk · 13 May 2006 at 13:51

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

MikeTimbers · 13 May 2006 at 13:57

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.

Edgeuk · 13 May 2006 at 14:11

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!