Computer case
power supplies are the most expensive component.
Computer
cases usually include power supplies. But, since they are the most
expensive component of the computer case, this is where manufacturers
cut corners. They vary in rating and quality.
Most
computer systems will do with a 220 to 240 watt supply, but many
AMD brand processors, high performance 3D video cards, high speed
hard drives, or installing too many drives can overload your power
supply if it's not rated high enough. The problem may show up as
random errors, rather than outright failure, so check the specs
to make sure you have enough wattage to handle the load.
One trick is to listen to the cooling fan on your computer case
while the system is booting up. The fan is driven by the 12v supply,
and the speed will vary, and slow down if the power supply isn't
up to the task.
If you
plan to use an Athlon processor, especially with a video card using
NVidia graphics, then your computer case should have a 300+ watt
supply.
AMD has
a list of approved power
supplies for use with Athlon processors so check with the case
manufacturer if you plan to use one.
If you need to upgrade your power supply, make sure you get the
right one. There are differences between AT, and ATX case supplies.
The ATX
has a small cable that runs to the motherboard to turn the power
on and off. ATX cases have the soft-start feature that allows the
system to turn itself off.
AT cases
have 110v switches on the front of the case, and must be switched
off manually.
To purchase power supplies click:
Economy
Power Supplies
or Premium
Power Supplies
At
or ATX computer case... which one do you need?
Desktop, or tower case...
which one for you?
Mini, mid, or full
tower case... what's the difference?
Computer cooling... is yours
a "cool" case? ( and we don't mean looks )
Computer case maintenance...
don't get reminded the hard way.
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