Intel Core i3-3110M socket: Socket G2

What the Core i3-3110M is

Intel Core i3-3110M is a dual core Ivy Bridge part that Intel released in June 2012 for serviceable laptops with socketed boards. It runs at a fixed 2.4 GHz with no turbo step, and it carries 3 MB Intel Smart Cache. The design uses the 22 nm Ivy Bridge core with Hyper-Threading, so the two cores present 4 threads to the operating system. Power is rated at 35 W, which placed it in the standard mobile group for 15 inch chassis of that period.

Graphics come from Intel HD Graphics 4000 with a base of 650 MHz and a maximum of 1000 MHz on this SKU. That block drives three displays through eDP, DisplayPort, HDMI, SDVO or CRT wiring where the laptop maker routes them, and it covers office work, video playback and light photo edits without a separate chip. The memory controller sits on the same die and talks to DDR3 or low voltage DDR3 SODIMMs, which keeps latency low for the small cache.

The fixed clock shapes how the chip feels in daily use. Single thread tasks run at 2.4 GHz at all times, while well threaded work spreads across 4 threads. Laptops of the era paired it with a single fan, a 2.5 inch SATA drive and later a SATA SSD, plus 4 GB to 8 GB of RAM. The How to find your CPU socket type guide shows how to confirm the socket before ordering a replacement board.

Socket and motherboard compatibility

The Core i3-3110M fits Socket G2, a 988-contact pin grid array with socketed rPGA packaging in its socketed form. It also ships soldered on BGA 1023, so the sSpec matters before ordering: PGA orderings carry FC-PGA12F trays while BGA orderings carry FC-BGA12F trays. Intel lists both packages on the same specification page, and the ordering page shows SR0N1 and SR0T4 for the PGA trays next to SR0N2 for the BGA tray. Check the laptop service manual for access steps and the maker CPU support list for the exact model string.

Chipset pairing follows the mobile 7 series. HM76 and HM77 boards carry most socketed Ivy Bridge M SKUs, with QM77 and QS77 on business designs. The board BIOS must list the exact Core i3-3110M string, since some early Sandy Bridge boards need a firmware release that adds Ivy Bridge microcode. Power at 35 W sizes the heat pipes and fans, and the board must already handle that class. The Socket vs chipset: what decides whether a CPU works guide covers Intel pairing rules, and the CPU cooler compatibility by socket guide notes socketed laptop parts use board specific heatsinks.

Memory, PCIe and cooling

Memory support is DDR3-1333 and 1600, two channels, up to 32 GB, with low voltage DDR3 and DDR3-RS also accepted. Two SODIMM slots allow service and upgrades to the board maximum, and two matched modules give the rated 25.6 GB/s bandwidth. That bandwidth feeds both the cores and the graphics block that shares system RAM, so a single module measurably slows display work. There is no ECC option on this SKU.

PCI Express is 16 lanes from the CPU at PCIe 2.0 on this i3, wired by the board to discrete graphics options, Wi-Fi and storage. Most laptops with this chip stay on integrated graphics, since HD 4000 covers the display load of the time. Where a maker adds a discrete GPU, the link and the 35 W CPU envelope together decide what fits in the thermal budget.

Cooling uses board specific heat pipes and fans sized for 35 W with a 105 C junction limit. Repaste and fan cleaning help sustained 2.4 GHz operation more than any setting change, because dust raises fan speed before it lowers clocks. The rPGA package measures 37.5 × 37.5 mm, while the soldered twin is smaller at 31.0 × 24.0 mm.

Upgrade paths

A same socket move on Socket G2 is possible where the manual allows access and the BIOS lists the target. The Core i3-3110M can step to a faster Ivy Bridge M part with turbo, for example to Intel Core i5-3210M with 2.5 GHz to 3.1 GHz, or to Intel Core i5-3320M with 2.6 GHz to 3.3 GHz. The heatsink and 35 W envelope stay the same, while the BIOS must already carry Ivy Bridge microcode. Memory and storage carry over in most cases.

A platform move means a new laptop. Current Intel mobile lives on newer BGA packages with DDR4 or LPDDR5 and current wireless, which no Socket G2 board can reach. The soldered BGA twin on BGA 1023 is not an upgrade target, since the packages never interchange. Recycle the old laptop through a proper e waste path once data is wiped.