Intel Xeon E-2104G socket: LGA 1151
The Intel Xeon E-2104G uses the LGA 1151 socket, second revision. It runs on C242 and C246 workstation boards as a fixed clock 65 W quad core with P630 graphics.
- Socket
- LGA 1151
- Launched
- July 12, 2018
- Cores and threads
- 4 and 4
- Base power
- 65 W
- Codename
- Coffee Lake-S WS
- Segment
- Workstation
- Family
- Intel Xeon E
- Clocks
- 3.2 / 3.2 GHz
Intel Xeon E-2104G specifications
| Cores | 4 |
|---|---|
| Threads | 4 |
| Core architecture | Coffee Lake-S WS |
| Clocks | 3.2 GHz (no turbo) |
| Cache | 8 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 65 W |
| Manufacturing process | 14 nm |
| Memory support | DDR4-2666, two channels, up to 128 GB |
| PCI Express | PCIe 3.0, 16 lanes from the CPU |
| Integrated graphics | Intel UHD Graphics P630 (350 MHz base, up to 1.10 GHz) |
| Multiplier | Locked |
| ECC memory | Yes |
| Package | FCLGA1151 |
Motherboard and chipset compatibility
Intel Xeon E-2104G needs a motherboard with a LGA 1151 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| C240 series: C242 and C246 | C246, C242 | 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 E-2104G is
The Xeon E-2104G is a four core, four thread workstation processor with a fixed 3.2 GHz clock and no turbo step. It carries 8 MB of Smart Cache and a 65 W TDP on the 14 nm process. Intel launched it on July 12, 2018 as the entry E-2100 part for cost sensitive workstation towers.
The fixed clock keeps behavior steady for managed fleets and build nodes where every machine must act the same. UHD Graphics P630 runs from 350 MHz to 1.10 GHz, the lowest max in the family, for setup displays. The multiplier is locked at 32 times the base clock.
ECC memory support corrects single bit errors during long jobs. Tray packaging is the common supply, with no boxed part widely listed. Launch lists agree near $193, with no current ARK figure, so pricing is omitted here.
Socket and motherboard compatibility
The E-2104G fits LGA 1151 revision 2 on workstation boards with the C242 and C246 chipsets. Consumer 300 series boards are not the target, since ECC wiring lives on the workstation boards. Check the board maker CPU list for the exact E-2104G before ordering.
It does not fit 100 or 200 series boards, which are revision 1 for 6th and 7th Gen chips. Boards with display outputs suit this G SKU directly. A discrete workstation card still fits the x16 slot where GPU compute is needed.
Boards sold after mid 2018 accept it with the shipping BIOS where the maker lists the part. The Intel Xeon E-2124G is the faster quad core sibling on the same boards with turbo to 4.5 GHz.
Memory, PCIe and cooling
Memory support is DDR4-2666 in two channels up to 128 GB, with ECC correcting single bit errors. Two matched ECC UDIMMs give dual channel speed with error cover. The P630 shares system memory, so dual channel mode helps display smoothness.
PCI Express arrives as version 3.0 with 16 lanes from the CPU for graphics and storage. A workstation card and an NVMe drive fit the lane budget of an entry tower. Cooling uses the shared 75 mm LGA 1151 pattern at 65 W.
Upgrade paths
On the same socket the step up is a turbo quad core such as the Xeon E-2124G where bursts matter, keeping the board and ECC DDR4. The E-2104G keeps its place where a fixed clock covers managed nodes at lowest cost.
Moving past LGA 1151 means a new board on a current workstation platform. Owners usually add ECC memory or storage before replacing the processor.
Frequently asked questions
What socket does the Xeon E-2104G use?
It uses LGA 1151 revision 2 on C242 and C246 workstation boards. Consumer 300 series boards are not the target.
How many cores does the E-2104G have?
Four cores and four threads at a fixed 3.2 GHz with no turbo step, with 8 MB of cache at 65 W.
Which graphics does the E-2104G include?
UHD Graphics P630 from 350 MHz to 1.10 GHz for setup displays without a separate card.
What memory does the E-2104G support?
DDR4-2666 in two channels up to 128 GB with ECC for error cover on long jobs.
How does the E-2104G differ from the E-2124G?
The Intel Xeon E-2124G adds turbo to 4.5 GHz on the same boards. The E-2104G suits fixed clock fleets.
Sources and verification
Facts last checked against these sources on . Page last edited on .