Intel Xeon E3-1105C socket: BGA 1284
The Intel Xeon E3-1105C uses the BGA 1284 package. It is a soldered 25 W Gladden embedded quad part with ECC support.
- Socket
- BGA 1284
- Launched
- May 2012
- Cores and threads
- 4 and 8
- Base power
- 25 W
- Codename
- Gladden
- Segment
- Embedded
- Family
- Intel Xeon E3
- Clocks
- 1.0 GHz
Intel Xeon E3-1105C specifications
| Cores | 4 |
|---|---|
| Threads | 8 |
| Core architecture | Gladden cores on 32 nm |
| Clocks | 1.0 GHz (no turbo) |
| Cache | 6 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 25 W |
| Manufacturing process | 32 nm |
| Memory support | DDR3-1066 to 1600, two channels, up to 32 GB, ECC |
| PCI Express | 20 lanes from the CPU, PCIe 2.0 |
| Integrated graphics | None (no processor graphics) |
| ECC memory | Yes |
| Multiplier | Locked |
| Package | FCBGA1284 (37.5 × 37.5 mm, soldered) |
Motherboard compatibility
Intel Xeon E3-1105C needs a motherboard with a BGA 1284 socket. Chipset by chipset data for this codename is not recorded yet. See the BGA 1284 chipset list and the board maker's CPU support list.
BGA 1284 at a glance
| Type | BGA, 1,284 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | May 2012 |
| Memory | DDR3-1066 to 1600 with ECC, two channels |
| Cooler mounting holes | Not applicable (soldered) |
What the Xeon E3-1105C is
Intel Xeon E3-1105C is a quad core Gladden embedded processor that Intel released in May 2012 for communications infrastructure. It runs at a fixed 1.0 GHz with no turbo, with 6 MB Intel Smart Cache and Hyper-Threading for 8 threads per ARK. Power is rated at 25 W on a 32 nm process. The TechPowerUp entry lists 4 threads, but ARK and the cpu-infos BGA-1284 list show 8 threads with Hyper-Threading, which is used here.
No processor graphics are present, so carrier boards include a dedicated graphics chipset where a display is needed. Memory is DDR3 at 1066, 1333 or 1600 MT/s in two channels for up to 32 GB, with ECC for always on packet and control loads. Twenty PCIe 2.0 lanes feed network interfaces rather than a GPU.
Low fixed clocks with eight threads suit throughput per watt over single thread bursts. Carriers pair it with fixed firmware and directed airflow for multi year service. The How to find your CPU socket type guide shows how to confirm the soldered package.
Socket and motherboard compatibility
The Xeon E3-1105C solders to BGA 1284 with 1,284 balls in a 37.5 × 37.5 mm footprint and cannot be moved. ARK names the package FCBGA1284, while some databases list the same class as BGA 1283. Carriers qualify each model with a fixed board and BIOS, so another BGA part is not a field swap.
The BIOS must list the exact Xeon E3-1105C string with ECC wiring. The 25 W heatsink is sized by the carrier. The CPU cooler compatibility by socket guide notes soldered parts have no desktop mount.
Memory, PCIe and cooling
Memory support is DDR3 at 1066, 1333 or 1600 MT/s, two channels, up to 32 GB, with ECC. Two matched modules give 25.6 GB/s that eight threads share. Capacity follows the carrier design.
PCI Express is 20 lanes from the CPU at PCIe 2.0, split as 1x16 plus 1x4, 2x8 plus 1x4 or 1x8 plus 3x4. Carriers devote lanes to dual Ethernet, storage controllers and SSDs.
Cooling uses the carrier solution for 25 W. Dense enclosures rely on directed airflow more than large fans. Service is limited to cleaning and drive swaps.
Upgrade paths
There is no CPU upgrade path on soldered BGA 1284. The Xeon E3-1105C cannot be removed, so a faster carrier means a new board or a new box. Within the Gladden family the E3-1125C doubles clocks at higher power, but carriers rarely exchange models.
A platform move means a new embedded box on a current BGA package. Recycle the old unit through a proper e waste path once data is wiped.
Frequently asked questions
What socket does the Intel Xeon E3-1105C use?
It uses BGA 1284, called FCBGA1284 in ARK. Some databases list the same class as BGA 1283.
How many threads does the Xeon E3-1105C have?
Four cores with Hyper-Threading for 8 threads per ARK. Some database entries show 4 threads in error.
What memory does the Xeon E3-1105C use?
DDR3 at 1066, 1333 or 1600 MT/s, two channels, up to 32 GB, with ECC.
Can the Xeon E3-1105C be upgraded?
No. Soldered embedded parts need a board or box replacement for more speed.
Sources and verification
Facts last checked against these sources on . Page last edited on .