It's funny, we used
to drop in the PCstats.com Heatsink Clearance Measurements
chart in tons of reviews last year, but for months on end we've barely seen hide
nor hare of AMD motherboards in the labs. The onslaught of nForce2 boards
which are hitting the market seem to be changing this trend
back toward more normal levels, and so once again we bring
you these oh so critical clearance charts.
The AMD AthlonXP
is a toasty chip, so many of our readers like to know what is the largest
heatsink that they can slap on, or in some cases bolt on to the motherboard.
Since AMD doesn't currently use any standardized heatsink retention
mechanism there is a lot more freedom in terms of the
overall size an Athlon heatsink can take. Throw in the mixed layouts
of many different mainboards and you have a problem on your hand.
Not all AMD heatsinks will fit cleanly on all AMD motherboards,
especially if the heatsink is large, or requires the use of now
obsolete mounting holes.
Heatsink Clearance Measurements|
||16 mm |
|Bottom (cam) Clearance:
||12 mm |
|Left Side (arm) Clearance:
||30 mm |
|Right Side Clearance
||15 mm |
|Socket Mounting Holes:
|Max. Heatsink Base Dimensions:
||~90x85 mm |
Note: Approx. measurements are made
from the edge of the socket (not the clips) to the closest obstacle
taller than the ZIF socket itself.
The socket is 51mm across, and
62mm from top to bottom.
FIC has done a superb
job clearing the CPU socket area. This is probably the most spacious motherboard
we have ever used and the AU11 even has the four mounting holes! You definitely
will not have problems installing larger heatsinks like the Alpha
PAL8045 or Thermalright SLK-800.
Because the Power Fan Header and CPU Fan header are side by
side, you must make sure you plug the HSF into the right
header! If you plug the CPU fan into the wrong header, there's a
possibility you could fry your processor when the board goes into hibernation
Overclocking on the AU11; what
We really didn't know what to expect when it came to
overclocking the FIC AU11. Our other nForce2 based motherboard, the MSI K7N2 was
not a good overclocker with the AthlonXP 2700+, but I have also heard many users go
past 200 MHz FSB as well. None the less, we began to raise the FSB
We easily pasted the 175 MHz mark which
was what the MSI K7N2 maxed out at, and continued up past the 180 MHz FSB mark! At 183 MHz FSB the
FIC AU11 said enough, and wouldn't budge a single bit more. Not bad, but not
quite 200MHz FSB either.