Cooling an OC'd 955BE

[tehmoonrulz]

I am currently using a 955BE cpu paired with a scythe katana3 cooler in a CM 690 case and not too pleased. With an OC of 3.5@1.45 volts I'm getting temps to 62C within 10-15 minutes under prime95. I'd like to stress test longer and on higher overclocks/voltages but think that this fan can't keep up.

Right now I'm trying to decide between the:
XIGMATEK HDT-S1283 120mm Rifle CPU Cooler $40
XIGMATEK Dark Knight-S1283V 120mm Long Life Bearing CPU Cooler $45
CORSAIR Cooling Hydro Series CWCH50-1 120mm High Performance CPU Cooler $78

All of these have the option of adding a second 120mm fan (which I will be doing). My primary concern is that the Dark Knight doesn't have a copper heat sink and the overall price of the H50 (~$80 with a second fan) justifying the cost.

As of right now im looking at the HDT due to the performance, copper heatsink and it being the cheapest solution. Any input to my decision is appreciated

 

[JohnnyLucky]

Here is a link to a very good web site with a lot of useful information about cpu heatsinks:

http://www.frostytech.com/top5heatsinks.cfm

You can read the technical reviews of the cpu heatsinks to help make an informed decision.

 

[tehmoonrulz]

Thank you for the response. I have spent time on frosty tech and my only issue is they test in a controlled setting and only report the above ambient temperature with stock voltages. I'm more interested in seeing what users with these coolers have experienced with higher than stock settings for prolonged periods of time.

 

[obsidian86]

amd 965 with thermalright ultra 2 san ace 120mm fans push pull config 3.8ghz after 10 hours prime hottest core is 59c