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Home PC Apex Resource Center CPU Sockets and Slots

CPU Sockets and Slots
September 05 2006

CPU Sockets and Slots

Connector Name Used by CPU Number of Pins Voltage
Socket 4 Classic Pentium 60/66 273 pins
21 x 21 PGA grid		 5V
Socket 5 Classic Pentium
75/90/100/120/133		 320 pins
37 x 37 SPGA grid		 3.3V
Socket 6 Not used 235 pins
19 x 19 PGA grid		 3.3V
Socket 7 Pentium MMX, Fast Classic Pentium, AMD KS, Cyrix M 321 pins
37 x 37 SPGA grid		 2.5V to 3.3V
Super Socket 7 AMD KS-2, AMD KS-III 321 pins
37 x 37 SPGA grid		 2.5V to 3.3V
Socket 8 Pentium Pro 387 pins
24 x 26 SPGA grid		 3.3V
Socket 370 or PGA 370 Socket Pentium III FC-PGA, Celeron PPGA, Cyrix III 370 pins
37 x 37 SPGA grid		 1.5V or 2V
Slot 1 or SC242 Pentium II, Pentium III 242 pins
2 rows, rectangular shape		 2.8V and 3.3V
Slot A AMD Athlon 242 pins
2 rows, rectangular shape		 1.3V to 2.05V
Socket A or Socket 462 AMD Athlon and Duron 462 pins
SPGA grid, rectangular shape		 1.1V to 1.85V
Slot 2 or SC330 Pentium II Xeon, Pentium III Xeon 330 pins
2 rows, rectangular shape		 1.5V to 3.5V
Socket 423 Pentium 4 423 pins
39 x 39 SPGA grid		 1.7V and 1.75V
Socket 478 Pentium 4 478 pins
dense micro PGA grid (mPGA)		 1.7V and 1.75V
Socket PAC418 Itanium 418 pins 3.3V
Socket PAC611 Itanium 2 611 pins 3.3V
Socket 603 Xeon DP and MP 603 pins 1.5V and 1.7V
Socket 754 AMD Athlon 64, Sempron, Turion 64 754 pins
PGA grid		 0.8V to 1.55V
Socket 775 or Socket T Pentium 4, Celeron D, Pentium 4 Extreme Edition, Pentium D, Pentium Extreme Edition, Core 2 Duo, Core 2 Extreme 755 pins
LGA grid
Socket 939 AMD Athlon 64, Athlon 64 FX, Athlon 64 X2, Opteron, Sempron 939 pins
PGA grid		 0.8V to 1.55V
Socket 940 AMD Athlon 64 FX and Opteron 940 pins
PGA grid		 0.8V to 1.55V
Socket AM2 AMD Athlon 64, Athlon 64 X2, Athlon 64 FX, Sempron 940 pins
PGA grid