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CPU Sockets

Before you buy that new CPU, make sure it is compatible with your motherboard. Following is a quick rundown of CPU Sockets and Slots:

Socket Number

No. of Pins

Pin Layout

Voltage

Supported Processors

Socket 1

169

17x17 PGA

5v

SX/SX2, DX/DX2*, DX4 OverDrive

Socket 2

238

19x19 PGA

5v

SX/SX2, DX/DX2*, DX4, OverDrive, 486 Pentium OverDrive

Socket 3

237

19x19 PGA

5v/3.3v

SX/SX2, DX/DX2, DX4, 486 Pentium OverDrive

Socket 4

273

21x21 PGA

5v

Pentium 60/66, Pentium 60/66, OverDrive

Socket 5

320

37x37 SPGA

3.3v

Pentium 75-133, Pentium 75+ OverDrive

Socket 6**

235

19x19 PGA

3.3v

DX4, 486 Pentium OverDrive

Socket 7

321

37x37 SPGA

VRM

Pentium 75-200, Pentium 75+ OverDrive

Socket 8

387

dual-pattern SPGA

VRM

Pentium Pro

SEC

242

Single Edge Cart. Slot

CPU Selected

Pentium II