Intel Xeon E7-2803 socket: LGA 1567
The Intel Xeon E7-2803 uses the LGA 1567 socket. It is a 105 W six core Westmere-EX server part at a fixed 1.73 GHz with no turbo for two socket boards.
- Socket
- LGA 1567
- Launched
- April 2011
- Cores and threads
- 6 and 12
- Base power
- 105 W
- Codename
- Westmere-EX
- Segment
- Server
- Family
- Intel Xeon E7
- Clocks
- 1.73 GHz
Intel Xeon E7-2803 specifications
| Cores | 6 |
|---|---|
| Threads | 12 |
| Core architecture | Westmere-EX cores on 32 nm |
| Clocks | 1.73 GHz (no turbo) |
| Cache | 18 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 105 W |
| Manufacturing process | 32 nm |
| Memory support | DDR3, ECC registered with buffering, four channels per socket |
| QPI links | QuickPath Interconnect links |
| PCI Express | No lanes from the CPU; I/O via Intel 7500 chipset |
| Integrated graphics | None (server part) |
| Multiplier | Locked |
| ECC memory | Supported |
| Package | FCLGA1567 |
Motherboard and chipset compatibility
Intel Xeon E7-2803 needs a motherboard with a LGA 1567 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| 7500 Boxboro | 7500 | Works 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 1567.
LGA 1567 at a glance
| Type | LGA, 1,567 contacts |
|---|---|
| Package size | n/a |
| Introduced | March 2010 |
| Memory | DDR3 ECC registered with buffering, four channels per socket |
| Cooler mounting holes | Board specific (server heatsink) |
What the Xeon E7-2803 is
Intel Xeon E7-2803 is a six core Westmere-EX server processor that Intel released in April 2011 for two socket boards. It runs at a fixed 1.73 GHz with no turbo and includes Hyper-Threading, so 6 cores give 12 threads. Cache is 18 MB Intel Smart Cache. Power is 105 W on a 32 nm process.
The fixed low clock suits entry two socket nodes where socket count matters more than speed. Small virtual farms use 24 threads per board. Power draw stays flat without turbo steps.
There is no integrated graphics on this die. Each socket carries DDR3 channels with ECC. The chip launched in the second quarter of 2011.
Socket and motherboard compatibility
The Xeon E7-2803 fits LGA 1567 in FCLGA1567 form. Two socket server boards with the Intel 7500 chipset carry it. The board BIOS must list the exact E7-2803 string.
CPUs connect over QuickPath Interconnect, while PCIe comes from the chipset for network and storage. A board that lists E7-2800 strings is the safe choice.
Memory, PCIe and cooling
Memory support is DDR3, ECC registered with buffering, four channels per socket. Fill risers in matched sets per the board manual. Capacity follows the board design.
QPI links connect sockets on multiprocessor boards. PCIe comes from the Intel 7500 chipset rather than the processor.
Cooling uses board specific server heatsinks under data center airflow. Match the heatsink to the chassis direction.
Upgrade paths
On LGA 1567 the E7-2803 can move to the E7-2820 for higher clocks with turbo on the same two socket board. Memory and storage carry over where the board lists both strings. A same family reference is Intel Xeon E7-2820.
A platform move to a current server socket needs new boards and DDR4 memory. Keep the E7 board for entry duty.
Frequently asked questions
What socket does the Intel Xeon E7-2803 use?
It uses LGA 1567 on two socket server boards.
Does the Xeon E7-2803 have turbo?
No. It runs at a fixed 1.73 GHz.
What memory does the Xeon E7-2803 use?
DDR3 ECC registered with buffering, four channels per socket.
What is the upgrade path from a Xeon E7-2803?
The E7-2820 for higher clocks with turbo on the same board.
Sources and verification
- Products formerly Westmere EX (Intel ARK, E7-2803 1.73 GHz 18MB 105W Q2-11)
- Westmere (Wikipedia, E7-2803 1.73 GHz 105W Apr 2011)
Facts last checked against these sources on . Page last edited on .