Intel Celeron SL3FZ 533MHz Socket 370 FCPGA 128KB L2 Cache CPU Processor

Intel Celeron SL3FZ 533MHz Socket 370 FCPGA 128KB L2 Cache CPU Processor

The Intel Celeron SL3FZ is a 533MHz Socket 370 FCPGA desktop processor released in 1998. It runs on a 66MHz front-side bus, carries 128KB of L2 cache integrated on-die, and operates at a 2.0V core voltage. The sSpec number SL3FZ identifies this as the FCPGA (Flip Chip Pin Grid Array) package variant, intended for Socket 370 motherboards.

Specifications & What's Included

• Processor: Intel Celeron 533MHz
• sSpec / OPN: SL3FZ / FV524RX533
• Socket: Socket 370 (FCPGA)
• Clock Speed: 533 MHz
• Front Side Bus (FSB): 66 MHz
• L2 Cache: 128 KB (on-die)
• Core Voltage: 2.0V
• Manufacturing Process: 0.25 micron (Mendocino core)
• Country of Manufacture: Malaysia (date code L9420460-0170, © 1998)
• Package: FCPGA with gold pin array
• Included: Processor only — no heatsink or cooling fan

Applications

The Socket 370 Celeron line was Intel's value-segment desktop processor family of the late 1990s, targeting home PCs, budget business desktops, and entry-level workstations. The FCPGA package replaced the earlier PPGA (plastic PGA) variant and offered better thermal contact with Socket 370 motherboards from that era — boards based on chipsets like the Intel 440BX, 440ZX, and 815. The SL3FZ is commonly sought today for retro PC builds, vintage computing restorations, and as a drop-in replacement for aging Socket 370 systems that still need a functioning CPU. It is compatible with a wide range of Socket 370 motherboards from manufacturers including ASUS, Abit, Gigabyte, and MSI, though always verify your board's supported CPU list before purchasing.