MMC-2 socket: CPUs, chipsets and cooler fit
MMC-2 is the Intel Mobile Module Cartridge 2 that carried Mobile Pentium III Coppermine processors with the host bridge controller on a small card. It connects through a 400-pin connector with a 100 MT/s bus and SpeedStep support on later strings.
Quick facts
| Maker | Intel |
|---|---|
| Package type | Slot |
| Contacts | 400 |
| Package size | n/a |
| Introduced | October 1999 |
| Status | Legacy |
| Memory | SDRAM through the board chipset |
| PCIe from the CPU | Front side bus 100 MT/s to the baseboard; expansion hangs off the chipset |
| Cooler mounting holes | Board specific (module spreader) |
| Replaces | MMC-1 |
| Replaced by | Micro-PGA2 |
Overview
The module served full-size laptops from late 1999 with 256 KB Advanced Transfer Cache parts from 400 MHz to 500 MHz. Its card form suits laptops that need factory-configured processor and chipset pairs.
Processor generations
| Codename | Marketing name | Years | Notes |
|---|---|---|---|
| Coppermine | Mobile Pentium III Coppermine MMC | 1999 | 180 nm module single cores with 256 KB of L2 cache on a 100 MT/s bus, including the 450 MHz part and the 500 MHz part at 16.8 W from October 1999. |
Who MMC-2 serves
MMC-2 targets full-size laptops with factory module configurations. Boards with 440BX paths pair the module with SDRAM and AGP graphics. The card carries both processor and northbridge for matched timing.
Memory and cooling
Memory is SDRAM through the module and baseboard chipset. Cooling uses the module heat spreader for the exact laptop with service parts rated for the module TDP. Replacement means swapping the whole card.
CPUs on MMC-2
2 processor pages in the database, newest first.
| Processor | Cores / threads | Base / boost | TDP | Launched |
|---|---|---|---|---|
| Intel Mobile Pentium III 450 MMC | 1 / 1 | 0.45 GHz | 15.5 W | Oct 1999 |
| Intel Mobile Pentium III 500 MMC | 1 / 1 | 0.5 GHz | 16.8 W | Oct 1999 |
Frequently asked questions
Which processors fit MMC-2?
Coppermine Mobile Pentium III modules with 256 KB of L2 cache, including the 450 MHz part and the 500 MHz part at 16.8 W from October 1999 covered here. Each module carries the processor plus the host bridge controller.
Is MMC-2 the same as Micro-BGA2 or Socket 495?
No. MMC-2 is a 400-pin replaceable module with the CPU and chipset on a small card, while Micro-BGA2 is a soldered ball package and Socket 495 is a pinned socket. Boards are built for one form.
What memory does MMC-2 use?
SDRAM through the board chipset on the module and baseboard. The board sets the exact type.
How many PCIe lanes does MMC-2 provide?
No lanes come from the CPU alone. A 100 MT/s bus ties the module to the baseboard, while expansion hangs off the chipset.
Sources and verification
- Mobile Intel Processor Package Types MMC-2 (Intel)
- Intel Pentium III Mobile module 500MHz MMC-2 (HW museum)
- List of Intel Pentium III processors Mobile (Wikipedia)
Facts last checked against these sources on . Page last edited on .