Has anyone used this block is it worth me changing from my V3 to this for better mounting? I think reviews say it beats the Heatkiller.
which review were you looking at in particular ? I also have a heatkiller V3 block and been pretty pleased with it.
Sorry i wasn't clear I currently have the XSPC Delta V3 and here's the review I looked at: http://www.overclockerstech.com/xspc-rasa-cpu-water-block-review/1/ According to that the rasa block beats the Heatkiller V3 by a few degrees.
The EK Supreme HF is also worth a look http://skinneelabs.com/ek-supreme-hf.html?page=1 but note that you have to change the internal restriction plate for best results.
Thanks Nitrix, gonna look into it. Is there anything else in that that you would recommend over the Rasa?
Also check out this mod. It got me just under 2ºC improvement but took me a few attempts to get it right as I found it difficult to use small amounts and keep it smooth. I used the silicone sealant you use for sealing sinks and baths. One warning though, leave it a few days to set properly. On my first attempt I just left it for 24 hours and it hadn't set fully and was a real pain to remove from the micro channels. http://skinneelabs.com/heatkiller-i7.html