Asrock ad2550ru3s3 用户手册

There is 1 PCI Express slot on this motherboard.

PCIE1 (PCIE 1.0 x1 slot) is used for PCI Express x1 lane width cards.

PCIE1 (PCIE 1.0 x4 slot) is used for PCI Express x4 lane width cards.

Step 1.  Before installing an expansion card, please make sure that the 

power supply is switched off or the power cord is unplugged. 
Please read the documentation of the expansion card and make 
necessary hardware settings for the card before you start the 
installation.

Step 2.  Remove the system unit cover (if your motherboard is already 

installed in a chassis).

Step 3.  Remove the bracket facing the slot that you intend to use. Keep 

the screws for later use.

Step 4.  Align the card connector with the slot and press firmly until the 

card is completely seated on the slot.

Step 5.  Fasten the card to the chassis with screws.
Step 6.   Replace the system cover.