Intel Xeon E5-2658 socket: LGA 2011
The Intel Xeon E5-2658 uses the LGA 2011 socket. It is a 95 W eight core Sandy Bridge-EP embedded part with 16 threads at 2.1 GHz to 2.4 GHz.
- Socket
- LGA 2011
- Launched
- March 2012
- Cores and threads
- 8 and 16
- Base power
- 95 W
- Codename
- Sandy Bridge-EP
- Segment
- Embedded
- Family
- Intel Xeon E5
- Clocks
- 2.1 / 2.4 GHz
Intel Xeon E5-2658 specifications
| Cores | 8 |
|---|---|
| Threads | 16 |
| Core architecture | Sandy Bridge-EP cores on 32 nm |
| Clocks | 2.1 GHz base, up to 2.4 GHz turbo |
| Cache | 20 MB |
| Processor base power (TDP) | 95 W |
| Manufacturing process | 32 nm |
| Memory support | DDR3-800 to 1600, four channels, ECC |
| PCI Express | PCIe 3.0, 40 lanes |
| Integrated graphics | None (server board graphics) |
| Multiplier | Locked |
| Package | FCLGA2011 |
Motherboard and chipset compatibility
Intel Xeon E5-2658 needs a motherboard with a LGA 2011 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| C600 series | C602 | 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 2011.
LGA 2011 at a glance
| Type | LGA, 2,011 contacts |
|---|---|
| Package size | 52.5 × 45 mm |
| Introduced | November 2011 |
| Memory | DDR3 quad channel, up to 1866 MT/s, up to 64 GB on desktop boards |
| Cooler mounting holes | 80 × 80 mm |
What the Xeon E5-2658 is
Intel Xeon E5-2658 is an eight core Sandy Bridge-EP server processor that Intel released in March 2012 for communications and embedded designs. It runs at 2.1 GHz base with turbo to 2.4 GHz, with 20 MB cache and Hyper-Threading for 16 threads. Power is rated at 95 W on a 32 nm process. ARK lists the vertical segment as Embedded with embedded options, which separates it from the Server segment 2650 at nearby clocks.
No integrated graphics are present. Memory spans DDR3-800 to 1600 over four channels with ECC, and the chip gives 40 PCIe 3.0 lanes plus two 8.0 GT/s QPI links. Narrow turbo keeps behavior deterministic for appliance workloads that prefer steady clocks.
Carriers pair it with registered DIMMs and fixed firmware for long service. Sixteen threads with a large cache suit packet and media planes. The How to find your CPU socket type guide shows how to confirm the socket before ordering.
Socket and motherboard compatibility
The Xeon E5-2658 fits LGA 2011 in FCLGA2011 form. Dual socket Romley boards with the C600 series controller carry it. The vendor list must show the exact E5-2658 string with Sandy Bridge-EP microcode.
At 95 W standard server heatsinks apply. The Socket vs chipset: what decides whether a CPU works guide covers server pairing.
Memory, PCIe and cooling
Memory support is DDR3 at 800, 1066, 1333 or 1600 MT/s, four channels, with ECC and registered DIMMs. Full population feeds sixteen threads.
PCI Express is 40 lanes of PCIe 3.0 per socket. Two QPI links at 8.0 GT/s join pairs. Keep I/O near its socket on NUMA boards.
Cooling is vendor qualified for 95 W with chassis airflow. No retail mount exists.
Upgrade paths
Within LGA 2011 the Xeon E5-2658 can move to faster Sandy Bridge-EP or Ivy Bridge-EP eight core parts on the same board, where vendor lists allow. Memory and storage carry over. A Server segment comparison at nearby clocks is Intel Xeon E5-2660 on the same socket.
A platform move means a DDR4 generation. Keep the node for appliance duty where sixteen steady threads still serve.
Frequently asked questions
What socket does the Intel Xeon E5-2658 use?
It uses LGA 2011. C600 series dual socket boards carry it.
Is the Xeon E5-2658 a Server or Embedded part?
ARK lists the vertical segment as Embedded, for communications use as well as servers.
What memory does the Xeon E5-2658 use?
DDR3 at 800, 1066, 1333 or 1600 MT/s, four channels, with ECC and registered DIMMs.
Is the Xeon E5-2658 for dual socket boards?
Yes. The 2600 numbering allows two sockets.
Sources and verification
Facts last checked against these sources on . Page last edited on .