AMD Opteron 8346 HE socket: Socket Fr2
The AMD Opteron 8346 HE uses the Socket Fr2 socket. It is a 79 W quad-core Barcelona high-efficiency server part at 1.8 GHz with 4x512 KB of L2 plus 2 MB of shared L3, on the B1 stepping.
- Socket
- Socket Fr2
- Launched
- September 2007
- Cores and threads
- 4 and 4
- Default TDP
- 79 W
- Codename
- Barcelona
- Segment
- Server
- Family
- AMD Opteron
- Clocks
- 1.8 GHz
AMD Opteron 8346 HE specifications
| Cores | 4 |
|---|---|
| Threads | 4 |
| Core architecture | Barcelona cores on 65 nm |
| Clocks | 1.8 GHz (no turbo) |
| Cache | 4x512 KB L2 plus 2 MB shared L3 |
| Processor base power (TDP) | 79 W |
| Manufacturing process | 65 nm |
| Memory support | Registered PC2-5300 DDR2 ECC, two channels per socket |
| HyperTransport | 1.0 GHz |
| PCI Express | PCIe from the board chipset |
| Integrated graphics | None |
| Multiplier | Locked |
| Package | Socket F (LGA-1207) |
Motherboard compatibility
AMD Opteron 8346 HE needs a motherboard with a Socket Fr2 socket. Chipset by chipset data for this codename is not recorded yet. See the Socket Fr2 chipset list and the board maker's CPU support list.
Socket Fr2 at a glance
| Type | LGA, 1,207 contacts |
|---|---|
| Package size | n/a |
| Introduced | April 2009 |
| Memory | DDR2 ECC registered, board dependent |
| Cooler mounting holes | Board specific (server heatsink) |
What the Opteron 8346 HE is
The AMD Opteron 8346 HE is a high-efficiency 1.8 GHz multi-socket server quad core from September 10, 2007. It runs four K10 cores at 1.8 GHz with no turbo, so 4 cores give 4 threads. Cache is 512 KB of L2 per core under a shared 2 MB L3 on a 65 nm process. Power is rated at 79 W TDP.
Barcelona scales the native K10 server quad to multi-socket Socket F machines, seated here in Fr2 1207-land infrastructure that accepts Socket F packages. The untagged 8346 HE is the B1 stepping, part OS8346PAL4BGC, which carries the hardware TLB bug that the B3 version fixed. The task list rates it at 68 W while the processor tables rate the B1 part at 79 W, which this page uses. Its HyperTransport link runs at 1.0 GHz.
Socket and motherboard compatibility
The 8346 HE fits Socket F multi-socket server boards seated in Fr2 infrastructure, with a BIOS that lists early Barcelona HE parts. Standard Socket F packages seat in Fr2 machines per the platform compatibility note, and boards may need the TLB erratum workaround BIOS for the B1 stepping. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Memory, PCIe and cooling
Memory is registered PC2-5300 DDR2 ECC in two channels per socket through the server board design.
A 1.0 GHz HyperTransport link ties the CPU to the server chipset and the sockets together. PCIe slots hang off the chipset.
Cooling uses vendor qualified server heatsinks with threaded backplates for the 79 W envelope in dense chassis with directed airflow.
Upgrade paths
On Socket Fr2 the upgrade is the AMD Opteron 8346 HE (B3) at the same 1.8 GHz on the fixed B3 stepping at 68 W, or the AMD Opteron 8347 HE (B3) at 1.9 GHz. Beyond Fr2 a move to a newer Opteron platform needs new boards and memory.
Frequently asked questions
What socket does the Opteron 8346 HE use?
Socket Fr2, the 1207-land infrastructure that accepts Socket F server packages.
How many cores does the Opteron 8346 HE have?
Four cores and 4 threads at 1.8 GHz with 512 KB of L2 per core plus 2 MB of shared L3.
What is the difference between the Opteron 8346 HE and 8346 HE (B3)?
The untagged 8346 HE is the B1 stepping at 79 W; the 8346 HE (B3) is the same speed on the fixed stepping at 68 W.
Sources and verification
Facts last checked against these sources on . Page last edited on .