Intel

Intel Pentium 4 SL5SX 1.5GHz Socket 423 CPU Willamette 256KB 400MHz FSB

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SKU:
25293
MPN:
SL5SX
Condition:
Used
Availability:
Usually ships within 1-2 business days.
Weight:
1.00 LBS
Shipping:
Calculated at Checkout
  • Intel Pentium 4 SL5SX Socket 423 CPU — bottom view showing 423 gold contact pins and IHS center
  • Intel Pentium 4 SL5SX 1.5GHz Socket 423 processor — top angled view showing integrated heat spreader
  • Intel Pentium 4 SL5SX processor IHS markings closeup — 1.5GHz/256/400/1.75V sSpec label visible
$12.00
Was: $25.00
Current Stock: 17

Sold Out

Description

Intel Pentium 4 SL5SX 1.5GHz Socket 423 CPU Willamette 256KB 400MHz FSB

Desktop processor from Intel's first-generation Pentium 4 lineup. Single-core CPU operating at 1.5 GHz with 256 KB L2 cache, designed for Socket 423 motherboards based on the Intel 850 chipset.

Specifications & What's Included

  • Model: Pentium 4 Willamette (SL5SX stepping)
  • Clock Speed: 1.5 GHz
  • Socket: Socket 423 (PGA423, 423-pin OLGA/PPGA)
  • L2 Cache: 256 KB
  • Front Side Bus: 400 MHz
  • Core Voltage: 1.75 V
  • Manufacturing Process: 0.18 micron
  • Manufactured in Malaysia

Applications

Socket 423 processors were used in early 2000s desktop systems with Intel 850 chipset motherboards. This architecture was superseded by Socket 478 within months of release. The Pentium 4 line served general computing, office applications, and early consumer gaming. Compatibility is limited to the narrow Socket 423 platform and associated legacy systems.

Condition: Used
This Intel Pentium 4 SL5SX 1.5GHz Socket 423 processor has been tested at our facility and is in good working order. The CPU itself is clean with no bent or missing pins — the contact array looks good in photos. Note that this is a bare processor only; no heatsink, retention bracket, or fan is included. 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.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
Intel
Model:
SL5SX
MPN:
RN80528PC021G0K
Type:
Desktop Processor / CPU
SKU:
25293
Processor Model:
Pentium 4 (Willamette)
Clock Speed:
1.5 GHz
Socket Type:
Socket 423 (PGA423)
Number of Cores:
1
L2 Cache Size:
256 KB
Front Side Bus Speed:
400 MHz
Core Voltage:
1.75 V
Manufacturing Process:
0.18 micron
Processor Core:
Willamette
Package Type:
423-pin OLGA/PPGA
Stepping:
SL5SX (previous: SL4WT)
Condition:
Used – Inspected and Tested
Seller Notes:
CPU only — no heatsink, fan, or socket retention bracket included.
Country/Region of Manufacture:
Malaysia
Compatible With:
Socket 423 motherboards (early Intel 850 chipset platforms)
Form Factor:
OEM Processor — no heatsink
Condition Notes:
Intel Pentium 4 SL5SX 1.5GHz Socket 423 CPU tested and confirmed working. Bare processor only — no heatsink or fan included. Pins intact and in good condition.
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