CrossFire TemperaturesWe grabbed 2 Arctic Cooling Accelero Twin Turbo Pro VGA Coolers to see if they could tame our notoriously hot Radeon HD 4870s in crossfire configuration. The motherboard and case used in our test system means that the coolers are packed tightly together so that the upper cooler is sucking hot air straight off the back of the lower 4870’s PCB.
Both the stock and Arctic Cooling heatsinks showed pleasing results when the extra heat of a companion graphics card was added. The idle temperatures didn’t rise by a significant amount.
We are only showing the maximum VRM temperature of 1 card due to the other test card we used not supporting VRM temperature readouts. The extra heat output by the additional card in the crossfire configuration is likely to affect the VRM temperatures compared to the single card configuration.
The reason behind the absence of the load temperatures for each configuration in CrossFire is due to the the fact that both configurations showed horrendous temperatures.
The stock cooled CrossFire configuration forced the GPU temperature of the upper card to hit a stupendous 95C after just under 1 minute and 30 seconds of testing. Unfortunately, we had no choice but to abort the experiment fearing for the safety of our test system (as well as not wanting to cause a house fire!).
On the other hand, the Twin Turbo Pro CrossFire setup was showing decent GPU temperatures under the very small period of load, but the VRM temperatures hit 150C after just 1 minute of testing. Once again, sadly we had no choice but to abort the experiment fearing for the safety of our test system.
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