Removal and replacement procedures 55
CAUTION: The memory slots are structured to ensure proper installation. If you insert a memory
module but it does not fit easily into the slot, you may have inserted it incorrectly. Double-check the
orientation of the module and reinsert. If the holding clips do not close, the module is not inserted
correctly.
NOTE: The ProLiant DL180 G5 server supports up to six memory modules. Install them in the DIMM
slots starting from the DIMM 1 slot.
PCI expansion cards
System board PCI expansion slots
There are two PCI expansion slots on the system board.
Figure 40 System board PCI expansion slots
Item Component Designator Component Function
1 PCI slot PCI slot Supports one PCI Riser Card
2 PCIe slot PCIe slot 1,2,3 Supports X4 PCIe Riser Cards
3 PCIe slot PCIe slot 4, 5 Supports X8 PCIe Riser Cards
PCI riser card expansion slots
The two PCI Express riser cards attached to the PCI cage convert the functionality of the system board
expansion slots to the slots positioned at a 90° angle from the system board.
NOTE: Users have the option to replace the Dual Slot PCI Express riser cards in Slot 5 with a PCI-X
model using the PCI-X riser card option kit. This will allow support for PCI-X devices.