AMD Opteron 4276 HE socket: Socket C32
The AMD Opteron 4276 HE uses the Socket C32 socket. It is an 8 core high efficiency Valencia server part at 65 W.
- Socket
- Socket C32
- Launched
- June 2012
- Cores and threads
- 8 and 8
- Default TDP
- 65 W
- Codename
- Valencia
- Segment
- Server
- Family
- AMD Opteron
- Clocks
- 2.6 / 3.6 GHz
AMD Opteron 4276 HE specifications
| Cores | 8 |
|---|---|
| Threads | 8 |
| Core architecture | Bulldozer cores on 32 nm |
| Clocks | 2.6 GHz base, up to 3.6 GHz turbo |
| Cache | 8 MB L2 and 8 MB L3 |
| Default TDP | 65 W |
| Manufacturing process | 32 nm SOI |
| Memory support | DDR3 up to 1866 MT/s, two channels, ECC |
| PCI Express | None from the CPU. The chipset provides PCIe |
| Integrated graphics | None |
| ECC memory | Yes |
| Multiplier | Locked |
| Package | Socket C32 (LGA, 1207 contacts) |
Motherboard and chipset compatibility
AMD Opteron 4276 HE needs a motherboard with a Socket C32 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| SR5600 series | SR5690, SR5670, SR5650 | Needs a BIOS update Valencia parts boot on C32 boards that list them, after a BIOS update. Check ECC RDIMM support per board. |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for Socket C32.
Socket C32 at a glance
| Type | LGA, 1,207 contacts |
|---|---|
| Package size | 40 × 40 mm |
| Introduced | June 2010 |
| Memory | DDR3 ECC, two channels |
| Cooler mounting holes | Board specific (server heatsink) |
What the Opteron 4276 HE is
AMD Opteron 4276 HE is a 8 core Valencia server part that AMD released in June 2012 for single and dual socket servers. It uses the Bulldozer core design on a 32 nm process, running at 2.6 GHz base with turbo to 3.6 GHz. The cache is 8 MB L2 and 8 MB L3. Power is 65 W. There are no integrated graphics, so console output depends on the board controller.
The cores have no Hyper-Threading, so threads equal cores at 8. The on die ECC memory controller suits virtualized hosting with small guests. The package integrates HyperTransport 3.1 links for socket topologies on die.
At 65 W the Opteron 4276 HE belongs to the 65 to 70 W mainstream group. The clocks suit scale out racks with directed airflow. Boards are vendor qualified designs with ECC RDIMM slots. The How to find your CPU socket type guide shows how to confirm the socket before ordering parts.
Socket and motherboard compatibility
The Opteron 4276 HE fits Socket C32 in LGA form with 1,207 lands. Boards are single and dual socket server designs from system vendors, qualified per model. The generation needs a BIOS of the right age on boards bought for earlier parts.
Power delivery at 65 W suits 1U and 2U chassis with directed airflow and vendor heatsinks. Memory support decides more builds than power: the board must accept ECC RDIMMs. The CPU cooler compatibility by socket guide notes server sockets use board specific heatsinks. Socket vs chipset: what decides whether a CPU works covers the platform rules.
Memory, PCIe and cooling
Memory support is ddr3 up to 1866 mt/s, two channels, ecc. ECC RDIMMs are the server choice, since they catch single bit errors in long running guests. Balance DIMMs across channels and sockets for NUMA fairness.
PCI Express comes from the chipset, not from the Opteron die. HyperTransport links tie the sockets together and feed the chipset, while PCIe Gen 2 slots hang off the board. Storage standards beyond SATA follow the board as well.
Cooling uses 1U and 2U server heatsinks with directed airflow. The 65 W envelope sizes the heatsink and fan wall.
Upgrade paths
Within Socket C32 the Opteron 4276 HE sits in the eight core group for dense nodes. A same socket move adds cores or clocks where the board BIOS lists the target.
A real upgrade means a new platform. AMD moved servers to EPYC on SP3 and beyond with DDR4 memory and many more cores. That move needs a new board, new memory and often a new chassis. Keep the node for secondary duty or retire it whole.
Frequently asked questions
What socket does the AMD Opteron 4276 HE use?
It uses Socket C32. Boards are vendor qualified server designs that must list the exact model.
Does the Opteron 4276 HE have Hyper-Threading or turbo?
No Hyper-Threading. Threads equal cores at 8, with turbo to 3.6 GHz.
What memory does the Opteron 4276 HE use?
DDR3 up to 1866 MT/s, two channels, ECC.
Does the Opteron 4276 HE have integrated graphics?
No. Console output depends on the board management controller.
Sources and verification
Facts last checked against these sources on . Page last edited on .