(c) 2012 Ed Grochowski
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Desktop Computer Build
Ed Grochowski
Posted 4-24-2010
Updated 7-26-2011
Introduction
In April 2010, I put together a new desktop computer. Unlike the
previous computers that I had designed and built myself or bought
pre-assembled from Dell, this computer I assembled from standardized
components. I purchased the majority of components at Fry's Electronics
in Campbell, California.
This article describes the reasons for my choice of components. Note
that computer parts evolve very rapidly - it is unlikely that any of
these items will still be offered for sale a year from now.
Processor
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The processor is Intel's high-performance Core i7-930 processor,
codenamed Nehalem. This is a 2.8GHz, 64-bit, quad-core CPU built on
45nm process technology.
Informal benchmarking of this processor against the ones in my older
computers shows a 5-10x performance increase on parallel C compilations.
That's very impressive.
The primary reason for the new computer was that I needed a 64-bit
machine for software development.
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Memory
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The memory is Patriot's 4GB DDR3 1333 Desktop Memory. I bought six
modules for a total of 12GBytes.
In the past, I would buy computers with half of the memory populated. I
would later buy the other half as a mid-life upgrade. Today, memory is
so inexpensive that it made sense to buy all of the memory at once.
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Motherboard
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The motherboard is an ASUS P6T SE. This motherboard is similar to the
highly-acclaimed ASUS P6T except that it lacks the SLI feature.
The P6T SE suits me perfectly. The instructions were clear and
installation was straightforward. This is a very high-quality
motherboard. I encountered absolutely no problems in setting it up.
The P6T SE offers a large number of options for overclocking. I didn't
try those since I prefer my computers to run reliably at their rated
speeds.
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Graphics Card
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The graphics card is a mid-range ATI Radeon HD 4670.
Gamers select graphics cards based on their 3D performance. I select
graphics cards based on their ability to work under Linux with
open-source drivers. That criteria narrowed my choices to exactly one
manufacturer - AMD's ATI division.
As of this writing, the ATI HD 4670 works under Linux with open-source
drivers almost completely correctly. I encountered one minor bug
in the 2D drawing that I hope will be fixed in the next release of the X
Window System. I am running the Xorg 1.7.5 driver, not the closed-source
driver from ATI.
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Hard Disks
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The hard disks are Seagate Barracuda 1TB SATA/300 drives. I bought two
drives for a total of 2TB of storage. As usual, I installed the
operating system on one drive and put my data files on the other.
The quality of a disk drive is measured by its ability to hold data
reliably for years to come. I own a half-dozen Seagate drives and have
had good experiences with them. Even my five to seven year old Seagate
drives still work fine.
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Optical Disks
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The optical disks are LG 22x DVD Rewriters. These work well and I have
yet to encounter any read errors.
I bought two drives since I occasionally read or write two DVDs at once.
Optical disks can be less-than-reliable at times, so I usually make more
than one copy of my data on DVDs.
The capacity of optical disks has been falling behind hard disks for the
last two decades. Today I rarely use optical disks. Instead, I
periodically mirror the hard disks on all of my computers for backups.
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Power Supply
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The power supply is a Thermaltake TR2 RX 850W. It is big and heavy, as
one would expect of a power supply that can deliver almost a kilowatt.
The power supply has twice the capacity of what the computer currently
needs. It is better to get a bigger power supply than to risk
overloading a smaller power supply.
I was quite pleased with the modular cables and the very quiet fan.
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Case
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The case is an Antec Three Hundred Mid-Tower ATX case.
The case has plenty of room for all of the computer's components.
Ventilation is excellent. The case came with two large fans and mounts
for three optional fans. It provides a place under the disk drives to
hide excess cabling. Both side panels are removable. I found the case
to be very easy to work with.
The Antec Three Hundred offers simple, timeless styling with only two
small blue LEDs on an otherwise unadorned black box. There are no weird
plastic shapes or arrays of flashing LEDs. Thank you, Antec.
One nice touch is that the power and reset buttons are flush to the
surface so that they cannot be pressed accidentally.
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Keyboard and Mouse
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The keyboard is a Kensington "Keyboard for Life" and the mouse is a
Logitech M100. These components have become so inexpensive that not
much can be expected of them.
I chose the Kensington "Keyboard for Life" because it offers a
completely standard layout. All of the keys are in the right places and
there are no extra browser or media buttons that wouldn't work anyway
under Linux. In the world of keyboards, innovation is a minus.
The mouse is very nice with higher resolution than my previous mouse.
Both the keyboard and mouse have wired USB connections. I wanted to
avoid the battery-charging nuisance of wireless units.
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Monitor
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The monitor is a Hyundai W242D 24 inch 1920x1200 LCD.
At the present time, LCD manufacturers are discontinuing 1920x1200
displays and offering only 1920x1080. I find that to be a step
backwards, so I grabbed one of last 1920x1200 LCDs that I could find.
The Hyundai W242D offers a nice large screen with high resolution.
However, the viewing angle is narrow and due to the screen's size, there
is a noticeable shift in brightness from the top to bottom of the screen
when viewed at normal distance. My unit had no dead pixels.
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Printer
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The printer is a Brother HL-2140 Monochrome Laser Printer.
This is the most compact laser printer that I have ever seen. It is
also the least expensive at the unheard of sale price of $70. Of
course, the catch is that toner cartridges also cost $70.
The Brother HL-2140 offers impeccable print quality (as one would expect
from a laser printer running at 600 dpi). Even with the $70 toner
cartridge, the Brother HL-2140 has a much lower operating cost than
inkjet printers.
The Brother HL-2140 is fully supported by Ghostscript under Linux.
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Speakers
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The speakers are Altec-Lansing units left over from my previous computer.
Speakers don't change over time, so there was no need to buy new
speakers.
The speakers are a 4.1 configuration with front and rear speakers plus a
bass module. I use only the front speakers and the bass module.
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Operating System
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One benefit of building a computer from components is that one doesn't
have to pay for a pre-installed operating system that one wouldn't use.
I installed Slackware64 on the computer. At the present time, I'm
running Slackware-current to get the latest hardware support. This code
will migrate into the next stable Slackware release.
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Conclusion
The computer required an afternoon to assemble the hardware and a day to
set up the software. All components worked flawlessly except for the
minor graphics problem noted above.
The total cost of the computer was $1,620 USD (including 9.5% local
sales tax). While the cost was high for personal computers today, when
viewed in historical context the computer was amazingly inexpensive.
For well under two kilobucks, I assembled a "Unix workstation" that
offers two to four orders of magnitude more performance and storage
capacity than the genuine Unix workstations that I used a decade or two
ago. In addition to much better hardware, the modern Linux software is
vastly superior to any Unix version of years gone by.
Of course, today's high-end computer inevitably becomes yesterday's old
computer. By choosing leading-edge components, I expect this computer
to have a service life of at least five years.
July 2011 Update
The minor 2D drawing problem was fixed in Xorg 1.9.5 that shipped with
Slackware 13.37 in April 2011. The ATI Radeon HD 4670 now works
entirely correctly with open-source drivers.
Sometime after I assembled it, the computer started making single-bit
memory errors. I traced the cause of the errors to a defective DIMM.
After a DIMM replacement, the computer ran fine. Part of the job of
assembling one's own computer is also being the service department.
Overall, I have been very happy with this computer. It remains my
everyday workstation, offering greater performance, storage capacity,
and display resolution than even a more recently-purchased laptop
computer.
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