Alienware
- Internal
Based on
some less than great experiences in the past with
Clevo laptops (mainly some questionable build quality)
we felt it necessary to perform an Alien Autopsy
(Sorry!!!!).
We removed
the cover for the graphics card section and after
checking the seating for the 7800GTX we are happy
to give it a clean bill of health. You can also
see in the pictures below the GPU cooling vent.
In regards to specification the Go 7800 GTX is very
similar to its desktop brother with a clock speed
of 400mhz (desktop is 430mhz) and a memory speed
of 550mhz (desktop is 600mhz). So while this is
clocked slightly slower we have the full compliment
of pipelines and vertex shaders (that being 24 and
8 respectively), on paper this should be one very
fast laptop for gaming.
As well as
the raw speed provided by the Go 7800 GTX Nvidia
have also added numerous power saving features to
the mobile GPU. First up we have the dynamic clocking
which allows the GPU speeds to drop as low as 16mhz
and therefore reduce the power requirement. Clock
gating is also used when required (allows unused
parts of the gpu to be turned off if not being used).
With these two features enabled, and some excellent
engineering by Nvidia with the 0.09micron manufacturing
process the Go 7800 uses exactly the same power
consumption as the previous high end Nvidia model,
the Go 6800 Ultra. There is no need to take a step
down in specification if battery life is a major
concern for you.
Finally,
as this is a 7800 variant we get the full featureset
which includes Shader Model 3.0, HDR lighting and
Purevideo support.
The hard
drive compartment was next and all was well here
too, the Hitachi 100gb drive was secured well and
placed in the lower of the two bays so a second
could be added if required. We were surprised to
find that this was actually a 7200rpm drive rather
than a slower 5400rpm model. A quick look at the
product specifications confirm that this drive has
the same power requirement as a standard 5400rpm
drive so a good move by Alienware. Furthermore Hitachi
have integrated some excellent shock tolerance technology
which covers up to 300G when in use and 1000G when
not in use.
The memory
area was equally uneventful with 2 x1gb PDP modules
securely in place. This model is limited to 2 sticks
however if you go for 2 of the 1gb modules you shouldn’t
need any more memory for the life of the laptop.
The memory used here is 200mhz (DDR400) with timings
of 3-3-3-8.
It’s
all going well so far with regards to build quality
... so on to the CPU. The first thing you notice
about the CPU compartment is the massive size of
the cooler. This isn’t a problem, and the
size helps give more effective cooling however it
is a hefty piece of copper kit.
Underneath
the cooler we have a lovely AMD
FX-60 CPU,
the fastest AMD chip money can buy (some would say
the fastest desktop CPU money can buy). The CPU
is clocked at 2600mhz and of course has two cores.
This is a desktop chip rather than mobile optimised
and so has all the expected features including a
13x multiplier with 200 HTT speed, 1mb of L2 cache
per core and the Toledo/90nm process being used.
Voltage on
the chip usually sits around 1.30v which is a little
below that used by desktop boards we have used.
This didn’t concern us though and the chip
performed flawlessly at all times. Therefore this
reduced voltage would appear to be a minor power
saving tweak employed by Alienware. Additionally
when not under load the system does clock down the
CPU via the multiplier to 1100mhz, again saving
power and reducing heat.
Unfortunately,
this is where we found our only minor build quality
issue. To the left of the CPU we have some components
which are cooled by thermal pads. These thermal
pads had the blue plastic covers still attached.
It’s hard to say what effect, if any, this
would have had on the reliability of the system
however we removed them just to be sure.
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