Intel Xeon E3-1225 v2 socket: LGA 1155
The Intel Xeon E3-1225 v2 uses the LGA 1155 socket. It is a 77 W quad core Ivy Bridge server part without Hyper-Threading at 3.2 GHz to 3.6 GHz.
- Socket
- LGA 1155
- Launched
- May 2012
- Cores and threads
- 4 and 4
- Base power
- 77 W
- Codename
- Ivy Bridge
- Segment
- Server
- Family
- Intel Xeon E3
- Clocks
- 3.2 / 3.6 GHz
Intel Xeon E3-1225 v2 specifications
| Cores | 4 |
|---|---|
| Threads | 4 |
| Core architecture | Ivy Bridge cores on 22 nm |
| Clocks | 3.2 GHz base, up to 3.6 GHz turbo |
| Cache | 8 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 77 W |
| Manufacturing process | 22 nm |
| Memory support | DDR3-1333 and 1600, two channels, up to 32 GB, ECC |
| PCI Express | 16 lanes from the CPU, PCIe 3.0 |
| Integrated graphics | Intel HD Graphics P4000 (650 MHz to 1250 MHz) |
| Multiplier | Locked |
| Package | FCLGA1155 (37.5 × 37.5 mm) |
Motherboard and chipset compatibility
Intel Xeon E3-1225 v2 needs a motherboard with a LGA 1155 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| 7 series | Z77, Z75, H77, B75, Q77, Q75 | Works out of the box |
| 6 series: H61, H67, P67, Z68 | Z68, P67, H67, H61 | Needs a BIOS update Needs a BIOS update from the board maker before an Ivy Bridge processor is installed. |
| 6 series business: B65, Q65, Q67 | Q67, Q65, B65 | Not supported |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for LGA 1155.
LGA 1155 at a glance
| Type | LGA, 1,155 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | January 2011 |
| Memory | DDR3 |
| Cooler mounting holes | 75 × 75 mm |
What the Xeon E3-1225 v2 is
Intel Xeon E3-1225 v2 is a quad core Ivy Bridge server processor that Intel released in May 2012 for single socket servers that need local displays. It runs at 3.2 GHz base with turbo to 3.6 GHz, with 8 MB Intel Smart Cache and no Hyper-Threading, so 4 cores give 4 threads per ARK. Power is rated at 77 W on a 22 nm process.
Graphics are Intel HD Graphics P4000 at 650 MHz to 1250 MHz. The workstation class block drives local monitors and video without a card, which suits lab servers and office hosts with a screen. Memory is DDR3 at 1333 or 1600 MT/s in two channels with ECC unbuffered DIMMs, and the chip gives 16 PCIe 3.0 lanes.
High fixed clocks with workstation graphics cover interactive server duty that desktop Xeons without graphics cannot. Boards pair it with unbuffered ECC UDIMMs and a small SSD. The LGA, PGA and BGA: CPU package types explained guide contrasts this socketed server part with soldered designs.
Socket and motherboard compatibility
The Xeon E3-1225 v2 fits LGA 1155 in FCLGA1155 form. C206 and C216 server boards with display outputs are the validated home for the P4000 block, since C204 designs cannot use the iGPU. Desktop 7 series boards with display outputs boot it with a current BIOS where the maker list names the SKU.
At 77 W standard server cooling applies. ECC needs a C-series board; use non-ECC UDIMMs on desktop boards. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Memory, PCIe and cooling
Memory support is DDR3-1333 and 1600, two channels, up to 32 GB, with ECC unbuffered DIMMs on C-series boards. Two matched UDIMMs feed four cores and shared graphics. Registered DIMMs are not supported.
PCI Express is 16 lanes from the CPU at PCIe 3.0. The P4000 block already drives two displays, so lanes stay free for network and storage controllers.
Cooling follows the 77 W server rating with a standard heatsink and chassis airflow.
Upgrade paths
Within LGA 1155 the Xeon E3-1225 v2 can move to threaded E3-1200 v2 quad parts on the same board, adding Hyper-Threading. Memory and storage carry over. A threaded comparison with the same graphics is Intel Xeon E3-1245 v2 on the same socket.
A platform move means a DDR4 server generation. Keep the node for lab server duty with local displays.
Frequently asked questions
What socket does the Intel Xeon E3-1225 v2 use?
It uses LGA 1155. C206 and C216 boards with display outputs are the validated home.
Does the Xeon E3-1225 v2 have Hyper-Threading?
No. Four cores give 4 threads per ARK, with turbo to 3.6 GHz.
What graphics does the Xeon E3-1225 v2 have?
Intel HD Graphics P4000 at 650 MHz to 1250 MHz.
What memory does the Xeon E3-1225 v2 use?
DDR3-1333 and 1600, two channels, up to 32 GB, with ECC unbuffered DIMMs.
Sources and verification
Facts last checked against these sources on . Page last edited on .