The 3.4 Ghz 2600 runs at 3.80 w/ Turbo at stock settings so if ya needed an aftermarket cooler to run at 3.8, then every unit sold would fail. You can easily c;ock any SB processor to 4.5-ish w/ the stock cooler. As you can see, you can hit 4.6 Ghz w/ the stock cooler.
http://www.guru3d.com/article/asus-sabertooth-p67-tuf-review/10
So these settings allow us to work at a baseline clock of roughly 3400 MHZ, which helps us in IDLE power consumption. However, once the processor gets a kick in the proverbial nuts, it can turbo any or all cores towards that multiplier of 46 times that 100 MHz baseclock frequency, that's a 4600 MHz configuration setup in less than a minute...... Let's have a look at a Prime95 stress test with all four cores active and stressed at 4600 MHz (64 - 69C) ...We guarantee you, you can take it further as well, as we used stock Intel cooling here ...
The 2500 isn't all that different.
Here's my temps at 4.2 - 4.8 Ghz w/ Thermalright Silver Arrow on 2600k
Max Core Temps under P95 (idle - load) 4.2001 Ghz
Core 1 29 - 54
Core 2 30 - 56
Core 3 22 - 57
Core 4 28 - 55
Core Voltage (Idle) 1.016-1.024
Core Voltage (Under Load) 1.256 - 1.264
Max Core Temps under P95 (idle - load) 4.4001 GHz
Core 1 29 - 56
Core 2 30 - 60
Core 3 22 - 60
Core 4 29 - 57
Core Voltage (Idle) 1.040-1.048
Core Voltage (Under Load) 1.280 - 1.288
Max Core Temps under P95 (idle - load) 4.6004 Ghz
Core 1 31 - 62
Core 2 31 - 66
Core 3 31 - 68
Core 4 31 - 65
Core Volatge (Idle) 1.040-1.048
Core Voltage (Under Load) 1.360 - 1.368
Max Core Temps under P95 (idle - load) 4.8004
Core 1 29 - 69
Core 2 28 - 75
Core 3 28 - 79
Core 4 28 - 72
Core Voltage (Idle) 1.032-1.064
Core Voltage (Under Load) 1.408 - 1.416
The Silver Arrow is way way more cooler than ya need for Sandy Bridge.....I just used it because it was the biggest damn ting I ever saw (7" cube installed w/ fans) and it looked like fun to play with .... well the fact that it beat the pants off the competition helped
. Even the reviewer writes:
http://benchmarkreviews.com/index.php?option=com_content&task=view&id=674&Itemid=62&limit=1&limitstart=5
I think the Silver Arrow represents the ultimate air cooler than can be built and still fit within the constraints of an ATX motherboard and a standard computer case...... It's almost ironic that coolers like this are becoming available just as processors transition to designs that may ultimately render them unnecessary; even overclocked to 5GHz, an Intel Sandy Bridge 2600K doesn't need anywhere near this level of cooling. Still, it wouldn't hurt, and as I noted earlier, there are still CPUs out there that can benefit from it.
I'd get a Scythe Mugen 2 .... It beats the Hyper 212 by 7C and costs only $10 more.
http://www.newegg.com/Product/Product.aspx?Item=N82E16835185142
http://www.newegg.com/Product/Product.aspx?Item=N82E16835150080
][/url]This is why you dont use stock coolers!
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