the small size of the AOpen UX4SG-1394 motherboard that powers the EZ65
XCcube fool you, it's easily as powerful as any of the regular sized i865PE
motherboards on the market. Sporting the swift Intel i865G chipset, this
motherboard can handle even the fastest Northwood Pentium 4 processors without a
The UX4SG-1394 has almost everything you'd need
from even a high end performance PC. It comes with Gigabit LAN, 5.1 audio,
on board video (care of the i865G chipset) and obviously IEEE 1394. If there's
something else you need, there is one PCI and one AGP slot available for expansion.
only two DIMM slots which support a maximum of 2GB of DDR memory, but
because you have to install DIMM's in pairs to get the dual channel memory
controller functioning, you'd better buy what you need right at the
There is thermistor inside the Pentium 4 CPU socket to record
temperature readings for the SilentTek system used to keep the case cool, with
the least amount of noise. The Intel Pentium4 3.0C processor we used for testing
ran quite hot, but the system was completely stable.
you'll probably never look at the PCB of the motherboard, AOpen still did a
great job at labelling the various ports around the board. With the motherboard
out in the open the layout looks odd and out of place, but once it's inside the
EZ65 XCcube everything fits together very nicely.
The CPU Cooler and SilentTek
include a custom socket 478 heatsink with the EZ65 XCcube, and it has a 6mm
thick copper base with 23 rather thick aluminum fins. Instead of having the
fan blow down on the heatsink in an impingement fashion, the 70mm Everflow
(R127015DU) fan blows horizontally across the heatsink. This helps move hot air
towards the side exhaust grill in the aluminum case cover.
find much information on the Everflow R127015DU fan, which is 70x70x15mm in
size, and pushes ~30 CFM of air at around 31 dB. AOpen's special SilentTek
technology automatically lowers the rotation speed of the fan on the CPU cooler,
and does not raise it until the processor reaches a certain temperature
(remember that little thermistor under the CPU?).
This feature worked extremely well during out
benchmarking of the unit, and the heatsink could not be heard with the cover on
Overclocking the XCcube
BIOS does have basic overclocking options, we couldn't push the AOpen EZ65
XCcube very far. The maximum FSB we were able to reach was a mere 205 MHz; I
believe this may have had some relationship to CPU and Northbridge cooling, but
since this is a SFF PC I'm not overly concerned about high OC numbers. It's okAY
though, I can't see anyone buying the AOpen EZ65 XCcube for overclocking, this
system was built with quiet, compact, computing in mind.