Intel Xeon E3-1235L v5 socket: LGA 1151
The Intel Xeon E3-1235L v5 uses the LGA 1151 socket on C236 workstation boards. It is a 4 core Skylake-DT part at 2.0 GHz to 3.0 GHz and 25 W with HD Graphics P530 and no Hyper-Threading.
- Socket
- LGA 1151
- Launched
- October 2015
- Cores and threads
- 4 and 4
- Base power
- 25 W
- Codename
- Skylake-DT
- Segment
- Workstation
- Family
- Intel Xeon E3
- Clocks
- 2.0 / 3.0 GHz
Intel Xeon E3-1235L v5 specifications
| Cores | 4 |
|---|---|
| Threads | 4 (Hyper-Threading off) |
| Core architecture | Skylake cores on 14 nm |
| Clocks | 2.0 GHz base, up to 3.0 GHz turbo |
| Cache | 8 MB Smart Cache |
| Processor base power (TDP) | 25 W |
| Manufacturing process | 14 nm |
| Memory support | DDR4 and DDR3L ECC, two channels, up to 64 GB |
| PCI Express | PCIe 3.0, 16 lanes |
| Integrated graphics | Intel HD Graphics P530 |
| ECC memory | Supported |
| Package | LGA 1151 (FCLGA1151) |
Motherboard and chipset compatibility
Intel Xeon E3-1235L v5 needs a motherboard with a LGA 1151 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| C230 series: C236 | C236 | 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 1151.
LGA 1151 at a glance
| Type | LGA, 1,151 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | August 2015 |
| Memory | DDR4 on most boards (some early boards use DDR3L). DDR4 only on the second revision |
| Cooler mounting holes | 75 × 75 mm |
What the Xeon E3-1235L v5 is
The Xeon E3-1235L v5 is a low power Skylake workstation part on LGA 1151 for compact always on nodes. Intel set 4 cores and 4 threads at 2.0 GHz base with turbo to 3.0 GHz. Eight megabytes of Smart Cache cover services. Power is 25 W on 14 nm from October 2015. Hyper-Threading is off.
Four plain cores suit firewall and NAS duty with P530 graphics for setup. Low base clocks protect tiny chassis while turbo covers bursts. The 25 W envelope fits fanless leaning enclosures with airflow. No HT keeps behavior simple for real time tasks.
HD Graphics P530 from 400 MHz drives setup displays. DDR4 and DDR3L ECC over two channels feed the node. Buyers pick the 1235L v5 where 25 W with graphics must run workstation threads without a discrete card.
Socket and motherboard compatibility
The 1235L v5 fits LGA 1151 on C236 compact workstation boards. The socket C236 table covers Skylake-DT. Low power L firmware keeps fans slow. Consumer boards lack E3 validation.
ECC UDIMMs or SODIMMs depend on board size. LGA 1150 never boots Skylake. Confirm 25 W thermal profiles in tiny cases.
Memory, PCIe and cooling
DDR4 and DDR3L ECC over two channels to 64 GB suit compact nodes. Low power memory options help thermals. ECC guards always on data.
PCIe 3.0 with 16 lanes from the CPU serves NICs and flash. Compact nodes use lanes for network expansion. P530 covers local displays.
Cooling uses 25 W low profile sinks. Quiet operation suits offices. Sealed boxes need validated airflow.
Upgrade paths
On the same socket the Intel Xeon E3-1268L v5 at 2.4 GHz to 3.4 GHz with 8 threads above adds threads for 35 W, while the Intel Xeon E3-1270 v5 at 80 W covers full speed headless duty. All share C236 boards where listed.
A move to E3 v6 needs new firmware. The 1235L v5 holds low power graphics in Skylake workstations.
Frequently asked questions
What socket does the Intel Xeon E3-1235L v5 use?
It uses LGA 1151 on C236 workstation boards.
How many cores does the Xeon E3-1235L v5 have?
4 cores and 4 threads at 2.0 GHz base with turbo to 3.0 GHz. Hyper-Threading is off.
Which graphics does the Xeon E3-1235L v5 include?
Intel HD Graphics P530 for setup displays.
What is the TDP of the Xeon E3-1235L v5?
25 W low power tuning.
Sources and verification
- Intel Xeon Processor E3-1235L v5 specifications (Intel)
- Intel Xeon E3-1268L v5 Specs (TechPowerUp, Skylake-DT family data)
Facts last checked against these sources on . Page last edited on .