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Intel Pentium II SL2U6 400MHz Slot 1 CPU 80523PY400512PE 512KB L2 No Heatsink Intel Pentium II SL2U6 400MHz Slot 1 CPU 80523PY400512PE 512KB L2 No Heatsink A single-core processor from Intel's Pentium II line, running at 400MHz with 512KB L2 cache. This CPU uses the Slot 1 interface and was manufactured on a 0.25 micron process. Specifications & What's Included - Model: SL2U6 (MPN: 80523PY400512PE)
- Clock Speed: 400MHz / Bus Speed: 100MHz
- L2 Cache: 512KB / Core Voltage: 2.0V
- Socket: Slot 1 / Package: SECC
- Process: 0.25 micron / Cores: 1
- CPU only — no heatsink II processors powered desktop and mobile systems throughout the late 1990s, supporting operating systems including Windows 95, 98, NT, and early Linux distributions. This 400MHz variant fits Slot 1 motherboards designed for Pentium II compatibility. It was used in workstations, business PCs, and consumer systems of that era. Suitable for retrocomputing builds, system restoration, or historical computing platforms.Condition: Used
This Intel Pentium II SL2U6 400MHz Slot 1 CPU has been tested at our facility and confirmed to boot a PC to BIOS — it is in working order. The heatsink is not included; thermal compound residue is visible on the mounting plate, as shown in the photos. The SECC cartridge shell shows normal wear consistent with prior installation and removal. The label on the edge connector reads 80523PY400512PE / SL2U6, manufactured in Malaysia. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function. Visit Our Store Shop industrial, solar, scientific, vintage computing, electronic test, audio-visual, office equipment, and manuals in our store. Start shopping » Follow Our store Want first pick on new arrivals? Tap Save Seller at the top of any page — alerts you the moment we list something new. Fast Shipping We ship via most standard carriers. Local pick-up available at our Ventura, CA warehouse. About Us Questions? Contact us anytime. Learn more about us » Best Offers Want to make an OFFER but don't see a MAKE OFFER button? Use the Contact Seller button at the top of this listing. 30-Day Guarantee 100% satisfaction guaranteed. Any issue, just reach out — we'll make it right. Thank you for shopping with us.
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