Description
Intel Pentium MMX 166MHz CPU FV80503166 SL2FP Socket 7 BP80503166 2.8V
The Intel Pentium MMX 166MHz (sSpec SL2FP) is a 32-bit x86 processor built on Intel's P55C core, introduced in early 1997. It runs at 166MHz on a 66MHz front-side bus and operates on a reduced 2.8V core voltage compared to the original Pentium, making it compatible with Socket 7 motherboards that support split-rail voltage. The MMX instruction set added 57 new SIMD instructions and 8 dedicated 64-bit MMX registers designed to accelerate multimedia, audio, and integer-heavy workloads.
Specifications & What's Included
- Processor: Intel Pentium w/ MMX Technology
- Clock Speed: 166 MHz
- Front-Side Bus: 66 MHz
- Part Number: FV80503166 (boxed) / BP80503166 (OEM)
- sSpec: SL2FP
- Socket: Socket 7 (SPGA, 296-pin)
- Core Voltage: 2.8V
- I/O Voltage: 3.3V
- L1 Cache: 32 KB (16 KB instruction + 16 KB data)
- MMX Technology: Yes (57 SIMD instructions)
- Country of Manufacture: Malaysia
- CPU only — no heatsink or cooling fan included
Applications
The Pentium MMX was Intel's mainstream desktop processor for 1997-era Socket 7 systems, fitting boards from manufacturers including Asus, Gigabyte, MSI, and AOpen that support the split 2.8V/3.3V voltage required by P55C-core chips. It was used in mid-to-high-end desktop PCs and workstations of the era running Windows 95, Windows NT 4.0, and DOS-based operating systems. Today these processors are sought by vintage PC enthusiasts restoring Socket 7 systems, retro gaming builds targeting late-DOS and early-Windows 9x software, and collectors of classic Intel silicon. The 166MHz MMX sits in the mid-range of the MMX lineup, above the 150MHz and below the 200MHz and 233MHz parts, making it a practical choice for Socket 7 restoration projects where the motherboard's FSB is fixed at 66MHz.
This Intel Pentium MMX 166MHz processor (SL2FP / FV80503166) has been tested at our facility and is in good working condition. The pins are straight and the heat spreader shows normal handling wear consistent with a used processor. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Intel |
Model: |
Pentium MMX 166MHz |
MPN: |
FV80503166 |
Secondary Model: |
BP80503166 |
SKU: |
41762 |
Type: |
CPU / Processor |
Processor Model: |
Pentium MMX |
sSpec Number: |
SL2FP |
Clock Speed: |
166 MHz |
Socket Type: |
Socket 7 |
Core Voltage: |
2.8V |
Number of Cores: |
1 |
Country/Region of Manufacture: |
Malaysia |
Form Factor: |
SPGA / Socket 7 |
Seller Notes: |
CPU only; no heatsink or fan included. |
Condition Notes: |
This Intel Pentium MMX 166MHz CPU (SL2FP / FV80503166) has been tested and is in good working condition. Pins are straight with normal cosmetic wear. Please contact us with any questions. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
