Intel Xeon E5507 socket: LGA 1366

The Intel Xeon E5507 uses the LGA 1366 socket. It is an 80 W quad core Gainestown server part at 2.266 GHz with 4 MB of L3 cache for entry dual socket nodes.

Socket
LGA 1366
Launched
March 16, 2010
Cores and threads
4 and 4
Base power
80 W
Codename
Nehalem-EP
Segment
Server
Clocks
2.27 GHz

Intel Xeon E5507 specifications

Cores4
Threads4
Core architectureGainestown cores on 45 nm
Clocks2.266 GHz (no turbo)
Cache4 MB L3 (shared)
Processor base power (TDP)80 W
Manufacturing process45 nm
Memory supportDDR3-800 ECC triple channel
PCI ExpressPCIe Gen 2 from the chipset
Integrated graphicsNone
MultiplierLocked
PackageLGA1366

Motherboard and chipset compatibility

Intel Xeon E5507 needs a motherboard with a LGA 1366 socket. The table shows which chipset series accept it.

SeriesChipsetsSupport
5500 and 5520 server5500, 5520Works out of the box

Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for LGA 1366.

LGA 1366 at a glance

TypeLGA, 1,366 contacts
Package sizen/a
Introduced2008
MemoryDDR3 triple channel, up to 24 GB on desktop boards
Cooler mounting holes80 × 80 mm

Read the full LGA 1366 socket guide

What the Xeon E5507 is

The Intel Xeon E5507 is a quad core Gainestown server processor from March 2010. It runs four Nehalem cores at 2.266 GHz with no turbo and no Hyper-Threading, so 4 cores give 4 threads. Cache is 4 MB of shared L3 on a 45 nm process. Power is rated at 80 W with an 800 MT/s bus.

Gainestown is the Xeon 5500 name for Nehalem-EP, so this page files the E5507 under the socket Nehalem-EP codename. The E5507 is unusual with 4 MB against 8 MB on most Gainestown quads, which shows in cache sensitive databases. IBM system options confirm 4C at 2.26 GHz with 4 MB and 80 W.

Memory is DDR3-800 ECC triple channel per socket.

Socket and motherboard compatibility

The Xeon E5507 fits LGA 1366 with 1366 lands. Intel 5500 and 5520 chipset boards boot it directly. Dual socket operation needs a matched pair.

The socket table covers Nehalem-EP natively. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.

Memory, PCIe and cooling

Memory is DDR3-800 ECC triple channel per socket.

QPI links sockets, with PCIe Gen 2 from the chipset.

Cooling uses server heatsinks rated for 80 W.

Upgrade paths

On LGA 1366 the server upgrade is an 8 MB Gainestown such as the E5520, or a Westmere-EP with a BIOS update. Beyond LGA 1366 a move to Sandy Bridge E5 needs a new board.

Frequently asked questions

What socket does the Xeon E5507 use?

LGA 1366, the 1366-land package on 5500 and 5520 chipset boards. Gainestown is the Xeon 5500 name for Nehalem-EP.

How many cores does the Xeon E5507 have?

Four cores and four threads at 2.266 GHz with 4 MB of shared L3 cache.

What memory works with the Xeon E5507?

DDR3-800 ECC triple channel per socket.

Sources and verification

  1. Tested Processor List for Intel 5500 and 5520 Chipset (Intel)
  2. IBM System x3650 M3 quick specs (IBM)

Facts last checked against these sources on . Page last edited on .