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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →The Intel Pentium Dual-Core E2140 is a 1.60 GHz, dual-core desktop processor for LGA775 systems. It has an 800 MHz front-side bus, 1 MB of L2 cache, and a 65 W thermal design power (TDP). Its name alone does not determine how much RAM a computer can use: check the motherboard model and BIOS before choosing memory or buying a replacement CPU.
Intel Pentium E2140 specifications
| Specification | Intel Pentium E2140 |
|---|---|
| Processor type | Dual-core desktop CPU |
| Clock speed | 1.60 GHz |
| Front-side bus | 800 MHz |
| L2 cache | 1 MB |
| Process technology | 65 nm |
| Instruction-set support | 64-bit (Intel 64) |
| Package and socket | FC-LGA6 package for a 775-land LGA socket, commonly called LGA775 |
| Thermal design power | 65 W TDP, as specified by Intel in its 2007 datasheet; this is not a measurement of a complete computer’s power draw |
| Listed sSpec and stepping variants | SLA93 (M0) and SLA3J (L2) |
The E2140 belongs to Intel’s Pentium Dual-Core E2000 series. Intel lists Execute Disable Bit, Intel 64, and Enhanced Intel SpeedStep among the supported technologies. The Intel E2000-series datasheet documents the package and series characteristics, while Intel’s E2140 processor support page lists the model details and stepping entries.
How much RAM can an E2140 computer use?
There is no reliable maximum RAM capacity or memory speed that can be read from the E2140 model number. For this processor generation, the memory controller is in the motherboard chipset, so the chipset and BIOS—not the CPU’s 800 MHz bus rating—set the practical memory limits.
An Intel Community answer about the E2140 gives DDR2 667/800 and 4 GB or 8 GB as general examples, not guaranteed specifications for every computer using this processor. Confirm the exact board before buying memory.
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Find the motherboard’s supported memory
- Identify the motherboard make and exact model. If you cannot read the model from the board itself, check the computer manufacturer’s system information or documentation.
- Find the board’s official specifications or manual and verify the supported memory generation, speeds, number of slots, module density, and maximum capacity.
- Check the installed BIOS version and the manufacturer’s notes for any BIOS-dependent memory support.
- Compare the board’s requirements with the modules already installed before purchasing an upgrade.
Do not infer DDR2-800 support just because Intel lists an 800 MHz front-side bus. Those are different specifications, and the motherboard manual is the authority for the memory modules the system supports.
Will the E2140 work in an LGA775 motherboard?
The E2140 uses an LGA775-compatible package, but a matching socket does not guarantee that a board supports the processor. The board’s chipset, firmware, and CPU support list also matter. Check the motherboard manufacturer’s processor list for the exact E2140 model and any required BIOS revision before installing one.
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For example, Intel’s X38 chipset supported-processor list includes E2140 entries. That confirms support for the listed X38 platform; it does not establish compatibility with every LGA775 motherboard.
Buying or replacing a Pentium E2140
An exact-model search for an Intel Pentium Dual-Core E2140 LGA775 processor may be useful when repairing or restoring a compatible older desktop. Before ordering, verify the board’s CPU support list and BIOS requirements, then check that the listing identifies the correct model and clearly describes the part’s condition.
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A 2007 archived ark PC product page marked a retail-box E2140 as end-of-life or no longer handled. That is historical retailer information, not evidence of present-day stock. Current availability, prices, seller reliability, and used-part condition have not been established here.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Choosing an alternative processor
There is no universally compatible replacement to recommend from the E2140’s socket alone. Compare candidates against the exact motherboard’s CPU support list and BIOS requirements first; then check package, core count, clock speed, cache, and the board and cooling requirements. A higher clock or a shared LGA775 socket by itself does not prove a processor will work in the system.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
