Intel Xeon 5148 socket: Socket 771
The Intel Xeon 5148 uses the Socket 771 socket. It is a 40 W low-voltage dual-core Woodcrest server part at 2.333 GHz with 4 MB of shared L2 cache for dense racks.
- Socket
- Socket 771
- Launched
- September 2006
- Cores and threads
- 2 and 2
- Base power
- 40 W
- Codename
- Woodcrest
- Segment
- Server
- Family
- Intel Xeon
- Clocks
- 2.33 GHz
Intel Xeon 5148 specifications
| Cores | 2 |
|---|---|
| Threads | 2 |
| Core architecture | Woodcrest cores on 65 nm |
| Clocks | 2.333 GHz (no turbo) |
| Cache | 4 MB shared L2 |
| Processor base power (TDP) | 40 W |
| Manufacturing process | 65 nm |
| Memory support | DDR2 FB-DIMMs through the server board chipset |
| Front side bus | 1333 MT/s |
| PCI Express | PCIe from the board chipset |
| Integrated graphics | None |
| Multiplier | Locked |
| Package | LGA 771 |
Motherboard compatibility
Intel Xeon 5148 needs a motherboard with a Socket 771 socket. Chipset by chipset data for this codename is not recorded yet. See the Socket 771 chipset list and the board maker's CPU support list.
Socket 771 at a glance
| Type | LGA, 771 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | May 2006 |
| Memory | DDR2 and DDR3 through the server board chipset |
| Cooler mounting holes | Board specific (server heatsink) |
What the Xeon 5148 is
The Intel Xeon 5148 is a 2.333 GHz low-voltage dual-core server processor from September 2006. It runs two Core cores at 2.333 GHz with no turbo, so 2 cores give 2 threads. Cache is 4 MB of shared L2 on a 65 nm process. Power is rated at 40 W on Socket 771.
The 5148, listed as LV 5148 in some tables, matched the 5140 clocks on a 1333 MT/s bus with a 7x multiplier at about 519 dollars launch price. It exists because dense servers wanted 2.333 GHz Core throughput with lower power than the 65 W standard 5140.
Socket and motherboard compatibility
The 5148 fits dual-socket Socket 771 server boards with a BIOS that lists low-voltage Woodcrest parts. It suits dense chassis qualified for 40 W dual cores. Check the server maker CPU list for the exact board and stepping. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Memory, PCIe and cooling
Memory is DDR2 FB-DIMMs through the server board chipset.
A 1333 MT/s front side bus ties the CPU to the server chipset. PCIe slots hang off the chipset.
Cooling uses vendor qualified server heatsinks for the 40 W envelope in dense chassis with directed airflow.
Upgrade paths
On Socket 771 the upgrade is the Intel Xeon 5140 at 2.333 GHz at 65 W where the chassis allows higher power, or low-voltage nodes stay at 40 W for density. Beyond Socket 771 a move to a newer Xeon platform needs new boards and memory.
Frequently asked questions
What socket does the Xeon 5148 use?
Socket 771, in dual-socket server boards with low-voltage Woodcrest support.
How many cores does the Xeon 5148 have?
Two cores and 2 threads at 2.333 GHz with 4 MB of shared L2 cache at 40 W.
What memory works with the Xeon 5148?
DDR2 FB-DIMMs through the server board chipset.
Sources and verification
Facts last checked against these sources on . Page last edited on .