Intel Pentium 350 socket: LGA 1155
The Intel Pentium 350 uses the LGA 1155 socket. It is a 15 W dual core Sandy Bridge server part at 1.2 GHz with Hyper-Threading and no integrated graphics.
- Socket
- LGA 1155
- Launched
- November 2011
- Cores and threads
- 2 and 4
- Base power
- 15 W
- Codename
- Sandy Bridge
- Segment
- Server
- Family
- Intel Pentium
- Clocks
- 1.2 GHz
Intel Pentium 350 specifications
| Cores | 2 |
|---|---|
| Threads | 4 |
| Core architecture | Sandy Bridge cores on 32 nm |
| Clocks | 1.2 GHz (no turbo) |
| Cache | 3 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 15 W |
| Manufacturing process | 32 nm |
| Memory support | DDR3-1333, two channels, up to 32 GB, ECC supported on server boards |
| PCI Express | 16 lanes from the CPU, PCIe 2.0 |
| Integrated graphics | None (server part, uses board BMC video) |
| Multiplier | Locked |
| ECC memory | Supported (requires server board) |
| Package | FCLGA1155 (37.5 × 37.5 mm) |
Motherboard and chipset compatibility
Intel Pentium 350 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 | Works out of the box |
| 6 series business: B65, Q65, Q67 | Q67, Q65, B65 | 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 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 Pentium 350 is
Intel Pentium 350 is a dual core Sandy Bridge server processor that Intel released in November 2011 for low power microservers. It runs at a fixed 1.2 GHz with no turbo and includes Hyper-Threading, so 2 cores give 4 threads. Cache is 3 MB Intel Smart Cache. Power is 15 W on a 32 nm process.
The 350 trades clocks for density. Racks pack many low power nodes for web serving and small business tasks. The 15 W envelope allows compact cooling and high node counts per rack.
Unlike desktop Pentium G parts, the 350 has no integrated graphics block. Server boards provide BMC video for management. Memory is DDR3 with ECC on qualified boards. The How to find your CPU socket type guide helps confirm the LGA package in a used node.
Socket and motherboard compatibility
The Pentium 350 fits LGA 1155 in FCLGA1155 form. Server boards with C202, C204 and C206 chipsets carry Sandy Bridge Xeons and this Pentium for entry nodes. The board BIOS must list the 350 string.
Desktop H61 or B75 boards may boot the chip electrically, but server features such as ECC and BMC management need a server board. Use a server board for the intended microserver role.
Memory, PCIe and cooling
Memory support is DDR3-1333, two channels, up to 32 GB with ECC on server boards. ECC catches single bit errors in always on service. Capacity follows the board design, which can sit below the CPU maximum in compact nodes.
PCI Express is 16 lanes from the CPU at PCIe 2.0 for network and storage. Microserver boards spend lanes on reliable I/O rather than graphics.
Cooling is a 15 W server heatsink with directed airflow. The 75 × 75 mm desktop pattern does not apply to 1U server thermal parts, so use the chassis qualified sink.
Upgrade paths
On LGA 1155 the Pentium 350 can move to a Sandy Bridge Xeon E3-1200 part for more cores and clocks on the same server board. Memory and storage carry over where the board lists both strings. A desktop dual reference on the same socket is the G620 class.
A platform move to a current server socket needs a new board and DDR4 or DDR5 memory. Keep the 350 node for lab or edge duty after the main rack moves on.
Frequently asked questions
What socket does the Intel Pentium 350 use?
It uses LGA 1155 in server boards with C200 series chipsets.
Does the Pentium 350 have Hyper-Threading?
Yes. Two cores give 4 threads. Desktop Pentium G parts of this era have 2 threads.
Does the Pentium 350 have integrated graphics?
No. It is a server part without integrated graphics. Boards use BMC video.
What memory does the Pentium 350 use?
DDR3-1333 with ECC on server boards, two channels, up to 32 GB.
Sources and verification
- Intel Delivers New Pentium 350 Processor for Low-End Servers (CRN, 1.2 GHz, 3 MB, 15 W, no graphics)
- Sandy Bridge (Wikipedia, Pentium 350 2 cores 4 threads 1.2 GHz 3 MB DDR3-1333 15 W November 2011 LGA1155)
Facts last checked against these sources on . Page last edited on .