How do you change a graphics card bracket to low-profile?

First you remove the wood-screws.... oops.... no wait, sorry, wrong card!

First you should send the vendor's support team an e-mail asking how to do it.

So, usually you would remove any ribbon cable (if there is one for a VGA port) and then you would unscrew first the pins holding just the connection that's attached to that ribbon cable, remove if possible; then the bolts for the DVI from the long plate; then the screws holding the back plate to the card; then slide of the back-plate (make sure nothing is caught, and also moake sure you don't strain anything); then when free, get the half-height plate and put on, screwing in the plate to the PCB, and then the bolts back on the DVI.

Your replacement card should come with directions though, and be sure you can figure out what you're supposed to do, before doing it.

Should be similar to this for the Matrox G550 (see subsection for hardware installation);

http://www.matrox.com/graphics/med [...] _guide.pdf