Dell R520, E19S owner manual Expansion Bus, Memory

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Technical Specifications

Processor

Processor type	One or two Intel Xeon processor E5-2400 and E5-2400 v2
	product family
Expansion Bus
Bus type	PCI Express Generation 2 and Generation 3
Expansion slots using riser card for a one processor
system:
Riser 1	(Slot 1) One half-height, half-length x4 link with x8 slot
Riser 2	(Slot 2) One full-height, full-length x8 link with x16 slot
	(Slot 3) One full-height, half-length x4 link with x8 slot
	(Slot 4) One full-height, half-length x4 link with x8 slot
Expansion slots using riser card for a two processor
system:
Riser 1	(Slot 1) One half-height, half-length x16 link with x16 slot
Riser 2	(Slot 2) One full-height, full-length x8 link with x16 slot
	(Slot 3) One full-height, half-length x8 link with x16 slot
	(Slot 4) One full-height, half-length x8 link with x16 slot
	NOTE: If you install a second processor, you must:
	• remove the dummy fan from the FAN6 slot
	• install a cooling fan in the FAN6 slot
	• upgrade both the expansion-card risers (riser 1
	and riser 2)
Memory
Architecture	1600 MT/s, 1333 MT/s, or 1066 MT/s DDR3 and LV-DDR3
	DIMMs
Memory module sockets	Twelve 240-pin
Memory module capacities
RDIMMs	2 GB (single-rank), 4 GB (single- and dual-rank), 8 GB
	(dual-rank), 16 GB (dual-rank), and 32 GB (quad-rank)
UDIMMs	2 GB (single-rank) and 4 GB (dual-rank)

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