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WiFi & USB 3.0 Performance
Our P8H67-I sample shipped with an Atheros AR9002WB-1NG wireless adapter. Compared to the H67-ITX, the signal strength was comparable even with the external antennae stretched to their limit. Both reported four bars with our 802.11n router 25~30 feet away with one wall in between, but the P8H67-I had a big speed advantage, 32.3 vs. 23.8 mbps when transferring a large file over the network. We encountered no disconnects during our limited testing period.
The P8H67-I's Renasas USB 3.0 controller also appears to be quicker than the VIA controller used on the H67-ITX. A large file transfer from a USB 3.0-connected WD VelociRaptor 600GB to a SATA-connected WD Caviar Black 2TB was 14 MB/s faster on the Asus board.
With an optimized UEFI menu (hard drive and other delays set to minimum), the P8H67-I reached the Windows loading screen in 13.3 seconds with our Core i5-2500K processor. Our sample was snappier in this regard than previously reviewed P67 boards, though the use of the integrated graphics chip might have been a factor.
Fans connected to the CPU and Chassis fan headers were controlled precisely according to the settings entered in Q-Fan in the UEFI. However, the board seems to lack voltage control as it would only adjust the speed of PWM fans during testing.
Fan control via FanXpert.
For better customized control, Asus' FanXpert utility allows you to add a third point to the fan speed/temperature graph to fine-tune the experience. This is a bit annoying as we would prefer to have everything in the UEFI rather than have to run extra software to get full functionality. We also found it strange that once again, the minimum fan speed was different depending on which method was used. In the UEFI the CPU and Chassis fans' minimum speeds can be set to 0% and 60% respectively, while in FanXpert, it's 20% and 40%. We've encountered this in the past and have always been puzzled at this disconnect.
SpeedFan screen with correlations inputted.
The latest beta version of SpeedFan works with the P8H67-I, offering similar functionality as FanXpert. We also stumbled upon a useful temperature sensor not displayed in Asus' PC Probe utility. The sensor labeled SMIOVT4 (5 and 6 as well) correlated to the area over the memory slots. When a fan was placed over this section the sensor recorded a significant temperature drop.
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