Cooler and Quieter Barebones PCs?

The Review: The Results Of The Ergonomics-Test

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Barebone-PCShuttle XPC SN85G4Soltek QBIC EQ3401MShuttle XPC SB65G2Biostar iDEQ 200T
CPUTemperature 161°C(T control active)59°C(T control)58°C(T control active)64°C(T control active)
CPUTemperature 254°C(max. fan speed)-53°C(max. fan speed)46°C(max. fan speed)
System Temperature50°C45°C44°C-
HDD Temperature48°C47°C43°C45°C
PWM66°C-56°C-
Noise Level (0.5m)55 bis 58 db(A)48 bis 55 db(A)52 bis 58 db(A)51 bis 56 db(A)
Test Commentssubjective pretty loudpulsating noisetolerance 1-5 °Cramp up time of fan 1.6 - 3.2 - 4.8 squietest PC in the testpretty loud under full loadpulsating noisetwo-step fan
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Barebone-PCECS EZ BuddieAbit DigiDiceEpox eX5 Mini Me
CPUTemperature 162°C(T control)62°C66°C(T control)
CPUTemperature 2-64°C(Smart Fan active)-
SystemTemperature53°C54°C47°C
HDD Temperature45°C55°C48°C
PWM-68°C-
Noise Level (0.5m)54 bis 60 db(A)60 db(A)55 db(A)
Test Commentspretty high CPU temperaturepulsating noisethis system heated upthe most during the testno fan control via BIOS