Build it Yourself Linux Super-Workstation Part 2
Power, Motherboard Challenges
September 17, 2009
In part one of this series we looked at the basic building
blocks needed to put together your very own high-end Linux workstation. This
time we'll finish out the actual hardware assembly and take a first look at
some of the options from a software perspective.
 figure 2
Making choices based purely on cost can sometimes lead to
even higher costs in the long run. This is especially true when it comes to the
right power supply. Choosing a cheap option might work for a low-end machine
but could make for real problems when building a system loaded with power
hungry devices.
Power
One of the things we didn't talk about in the first article
is power. The Thermaltake case we're using does not come with a power supply,
so that's something we should have mentioned. On the other hand, it gives us
the opportunity to look at power supply options in a little more detail this
time around. Power supplies are not the most talked about (or written about)
part of a computer by any stretch of the imagination. They can make a big
difference in how your system performs and how long it lasts.
Most off-the-shelf consumer desktop computers come with a
fairly wimpy power supply. It really won't matter unless you start adding lots
of things like additional hard drives, high-end graphics cards or an upgraded
CPU requiring more power. Building your own machine from parts is an entirely
different story. Not only do you have power available (measured in Watts) to
consider, there are also numbers and types of connectors for you to think
about. If you plan on loading up your new tower with lots of disk drives, then
you'll want a power supply with lots of disk drive power plugs.
Do a Google search on "PC power supply," and you'll quickly
find a wide range of products both in cost and capacity. It's at this point
that you want to decide on saving a few bucks versus investing in a solid and
versatile power supply. If you choose the latter, you won't go wrong with
Thermaltake. For this review they provide a Toughpower XT 650W supply that is a
DIYer's dream. It has a completely modular design allowing you to choose only
the connectors you need. It also happens to complement their tower cases quite
nicely as well.
Motherboard Challenges
If there's one part of the whole build-it-yourself process
that frightens most people away it has to be the motherboard and CPU
installation step. We were not immune to a few challenges along the way. Our
first motherboard came with a stuck power button that we couldn't seem to get
around. After fighting with it for several days the good folks at AMD decided
to provide a second board for us to use along with an older CPU chip.
Using the latest and greatest AMD quad-core CPU chip
presented a bit of a challenge with the BIOS on the MSI motherboard we had in
that the original bios didn't support the latest AM3 chip. So, you can't flash
the BIOS without an older CPU and hence the reason they sent one along. With
the new motherboard and the old CPU in hand we were able to get everything up
and running in fairly short order.
The only hitch in the BIOS flashing process was the need for
a Windows-based PC to create a bootable USB disk with the new firmware.
Fortunately for us, we had one available and managed to create the USB firmware
updated disk with no issues. MSI also has an on-line option for updating your
BIOS, but this assumes you have a working machine on which you want to perform
the update. Once we were able to update the BIOS we then swapped out the old
CPU for the hot new one, and everything worked great.
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