The Aida 64 FPU performance is too high, what's the reason?

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gogofrgl1234
Senior Member

718

01-06-2016, 04:41 AM

#1

I checked my 5820k on Aida64 stability test... OC 4.2 mhz 1.20v sharp
CPU performance is solid. Half an hour of testing reached 65C max, but during the FPU test it exceeded 85C and I had to stop the test.
Why does this occur? Is this typical?

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davachio
Member

204

01-06-2016, 06:11 AM

#2

the initial test used was Aida 64 FPU, designed to generate significant heat, similar to prime 95. those temperatures seem acceptable. what about you? your cooler would need to be around 120mm rad or higher, like a h100i.

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BadrBoss
Member

72

01-06-2016, 06:52 AM

#3

the initial test used was Aida 64 FPU, designed to generate significant heat, similar to prime 95. those temperatures seem acceptable. what about you? your cooler would need to be around 120mm rad or higher, like a h100i.

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SavageKillsMC
Member

106

01-06-2016, 11:39 PM

#4

Robert Cook asked about the initial test setup. He mentioned using Aida 64 FPU to generate maximum heat, similar to prime 95, and noted those temperatures are acceptable. He inquired what the cooler should be, suggesting a large air cooler or an H100i based on the temperatures. He clarified he didn't run the first or second tests, only focusing on FPU (checkbox) and CPU.

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Butterfly1416
Senior Member

701

01-07-2016, 01:23 AM

#5

Running the FPU only on Aida64 will give you those results, it's completely typical
The higher the clock or voltage, the more heat it produces. Useful for checking new clocks/voltages, I usually spend 15-20 minutes on FPU before doing full tests.