I have just a small query. If i was to buy a pc case that had usb
ports at the front of it, what do i have to look out for with regards
to purchasing a motherboard and how exactly are the front usb ports
connected from the motherboard to the case?
Thanks in advance
du.
Most motherboards currently will have at least 2 USB ports built into
the back of the board. While there are setups that will allow you to
route these through the case to the front of the PC, this is not what
you are looking for. You are looking for a motherboard that has
additional USB "headers". These are clusters of pins that connect to
USB rear brackets or USB front brackets (including those that come built
in to the case) via usb cables with pin sockets on the end to plug
directly into the motherboard. Generally each USB wire coming from the
case's front ports has it's own connecting plastic and you will have to
match up the power/ground/data+/data- wires from the case to the
appropriate pins on the motherboard. If you have your motherboard
manual handy it should take all of 2 minutes. It is important to
connect the proper wires to the right pins, though, as you can 'fry' a
USB motherboard header by connecting things in reverse (yes, people have
not paid attention and people have made unfounded assumptions and they
have damaged their motherboards: most people don't have this problem).
When buying a motherboard read about the types of USB headers available:
they will be either USB2 or a combination of USB 1.1 and USB2. Any USB
header on the motherboard can be connected to an appropriate speed USB
port via a cable to the case or to a PCI slot holder at the back. Some
cases have a circuit board for the USB front ports along with the cables
I've already discussed. These can cause some issues, as has recently
been seen on an Antec case or two. Antec appears to have cleared the
issue up, but it requires customers to contact them for the proper
replacement parts.
HTH,
Ari
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