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Socket AM4
General Info
Designer	AMD
Introduction	September 2016 (launched)
Market	Desktop
Microarchitecture	Zen
TDP	105 W 105,000 mW 0.141 hp 0.105 kW
Package
Name	OPGA-1331
Type	Organic Micro Pin Grid Array
Contacts	1331
Dimension	40 mm 4 cm 1.575 in × 40 mm 4 cm 1.575 in
Pitch	1 mm 0.0394 in
Socket
Name	Socket AM4
Type	PGA
Succession
Socket FM2+ Socket AM3+ Socket AM5

AM4 is a socket for AMD's mainstream series of microprocessors, serving as a successor to Socket FM2+ and Socket AM3+. It was superseded by Socket AM5.

Overview

Launching in September 2016, the AM4 replaces a number of older AMD sockets including the Socket FM2+ and Socket AM3+ designed to unify all its mainstream processors from the low-end to the high-end in a single socket. At the time AMD stated the socket will feature prolong comparability life.

The AM4 accepts zero-insertion force µOPGA-1331-packaged microprocessors designed based on the Excavator, Zen, Zen+, Zen 2, and Zen 3 microarchitectures, although the exact chips supported depends on the accompanying chipset.

Chipsets

Socket AM4 Platform [Edit]
Segment	Chipset	USB			SATA	SATAe	PCIe	RAID	Dual PCIe	Overclocking
		3.1 G1	3.1 G2	2.0
500-series (Zen+, Zen 2, Zen 3)
Mainstream	B550	2	6	6	8 + 4x NVME	0	16x Gen4	0,1,10	✔	✔
Enthusiast	X570	0	8	4	14 + 4x NVME	0	16x Gen4	0,1,10
400-series (Zen+)
Mainstream	B450	2	2	6	6 + 4x NVME	1	6x Gen3	0,1,10	✘	✔
Enthusiast	X470	6	2	6	10 + 4x NVME	2	8x Gen3	0,1,10	✔
300-series (Zen)
Small Form Factor	A300, B300	4	0	0	2 + 2x NVMe	1	4x Gen3	0,1	✘
	X300	4	0	0	2 + 2x NVMe	1	4x Gen3	0,1	✔
Entry-level	A320	6	1	6	4 + 2x NVMe	2	4x Gen2	0,1,10	✘	✘
Mainstream	B350	6	2	6	4 + 2x NVMe	2	6x Gen2	0,1,10		✔
Enthusiast	X370	6	2	6	6 + 2x NVMe	2	8x Gen2	0,1,10	✔

Support

AM4 socket support for a particular microprocessor depends on the chipset compatibility.

Socket AM4 Processor Support
Chipset	Zen		Zen+		Zen 2		Zen 3
	Summit Ridge	Raven Ridge	Pinnacle Ridge	Picasso	Matisse	Renoir	Vermeer
A320	✔				*
A520	✘				✔
B350	✔				*
B450	✔						*
B550	✘				✔
X370	✔				*
X470	✔						*
X570	✘		✔

* - Selective Beta BIOS update required

Processors using Socket AM4

... further results

	List of all Socket AM4-based Processors
Model	Price	Process	Launched	µarch	Family	Core	C	T	Freq	Turbo	TDP
200GE	$ 55.00 € 49.50 £ 44.55 ¥ 5,683.15	14 nm 0.014 μm 1.4e-5 mm	6 September 2018	Zen	Athlon	Raven Ridge	2	4	3.2 GHz 3,200 MHz 3,200,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
220GE	$ 65.00 € 58.50 £ 52.65 ¥ 6,716.45	14 nm 0.014 μm 1.4e-5 mm	21 December 2018	Zen	Athlon	Raven Ridge	2	4	3.4 GHz 3,400 MHz 3,400,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
240GE	$ 75.00 € 67.50 £ 60.75 ¥ 7,749.75	14 nm 0.014 μm 1.4e-5 mm	21 December 2018	Zen	Athlon	Raven Ridge	2	4	3.5 GHz 3,500 MHz 3,500,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
3000G	$ 49.00 € 44.10 £ 39.69 ¥ 5,063.17	14 nm 0.014 μm 1.4e-5 mm	20 November 2019	Zen	Athlon	Dali Raven Ridge	2	4	3.5 GHz 3,500 MHz 3,500,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
PRO 200GE		14 nm 0.014 μm 1.4e-5 mm	6 September 2018	Zen	Athlon	Raven Ridge	2	4	3.2 GHz 3,200 MHz 3,200,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
PRO 300GE		12 nm 0.012 μm 1.2e-5 mm	30 September 2019	Zen+	Athlon	Picasso	2	4	3.4 GHz 3,400 MHz 3,400,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
1200	$ 109.00 € 98.10 £ 88.29 ¥ 11,262.97	14 nm 0.014 μm 1.4e-5 mm	27 July 2017	Zen	Ryzen 3	Summit Ridge	4	4	3.1 GHz 3,100 MHz 3,100,000 kHz	3.4 GHz 3,400 MHz 3,400,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
1300X	$ 129.00 € 116.10 £ 104.49 ¥ 13,329.57	14 nm 0.014 μm 1.4e-5 mm	27 July 2017	Zen	Ryzen 3	Summit Ridge	4	4	3.5 GHz 3,500 MHz 3,500,000 kHz	3.7 GHz 3,700 MHz 3,700,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
2200G	$ 99.00 € 89.10 £ 80.19 ¥ 10,229.67	14 nm 0.014 μm 1.4e-5 mm	12 February 2018	Zen	Ryzen 3	Raven Ridge	4	4	3.5 GHz 3,500 MHz 3,500,000 kHz	3.7 GHz 3,700 MHz 3,700,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
2200GE		14 nm 0.014 μm 1.4e-5 mm	19 April 2018	Zen	Ryzen 3	Raven Ridge	4	4	3.2 GHz 3,200 MHz 3,200,000 kHz	3.6 GHz 3,600 MHz 3,600,000 kHz	35 W 35,000 mW 0.0469 hp 0.035 kW
2300X		12 nm 0.012 μm 1.2e-5 mm	10 September 2018	Zen+	Ryzen 3	Pinnacle Ridge	4	4	3.5 GHz 3,500 MHz 3,500,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
3200G	$ 99.00 € 89.10 £ 80.19 ¥ 10,229.67	12 nm 0.012 μm 1.2e-5 mm	7 July 2019	Zen+	Ryzen 3	Picasso	4	4	3.6 GHz 3,600 MHz 3,600,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
4300G		7 nm 0.007 μm 7.0e-6 mm	21 July 2020	Zen 2	Ryzen 3	Renoir	4	8	3.8 GHz 3,800 MHz 3,800,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
4300GE		7 nm 0.007 μm 7.0e-6 mm	21 July 2020	Zen 2	Ryzen 3	Renoir	4	8	3.5 GHz 3,500 MHz 3,500,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
5300G		7 nm 0.007 μm 7.0e-6 mm	13 April 2021	Zen 3	Ryzen 3	Cezanne	4	8	4 GHz 4,000 MHz 4,000,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
5300GE		7 nm 0.007 μm 7.0e-6 mm	13 April 2021	Zen 3	Ryzen 3	Cezanne	4	8	3.6 GHz 3,600 MHz 3,600,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
PRO 1200		14 nm 0.014 μm 1.4e-5 mm		Zen	Ryzen 3	Summit Ridge	4	4	3.1 GHz 3,100 MHz 3,100,000 kHz	3.4 GHz 3,400 MHz 3,400,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
PRO 1300		14 nm 0.014 μm 1.4e-5 mm		Zen	Ryzen 3	Summit Ridge	4	4	3.5 GHz 3,500 MHz 3,500,000 kHz	3.7 GHz 3,700 MHz 3,700,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
PRO 2200G		14 nm 0.014 μm 1.4e-5 mm	10 May 2018	Zen	Ryzen 3	Raven Ridge	4	4	3.5 GHz 3,500 MHz 3,500,000 kHz	3.7 GHz 3,700 MHz 3,700,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
PRO 2200GE		14 nm 0.014 μm 1.4e-5 mm	10 May 2018	Zen	Ryzen 3	Raven Ridge	4	4	3.2 GHz 3,200 MHz 3,200,000 kHz	3.6 GHz 3,600 MHz 3,600,000 kHz	35 W 35,000 mW 0.0469 hp 0.035 kW
PRO 3200G		12 nm 0.012 μm 1.2e-5 mm	30 September 2019	Zen+	Ryzen 3	Picasso	4	4	3.6 GHz 3,600 MHz 3,600,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
PRO 3200GE		12 nm 0.012 μm 1.2e-5 mm	30 September 2019	Zen+	Ryzen 3	Picasso	4	4	3.3 GHz 3,300 MHz 3,300,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
PRO 4350G		7 nm 0.007 μm 7.0e-6 mm	21 July 2020	Zen 2	Ryzen 3	Renoir	4	8	3.8 GHz 3,800 MHz 3,800,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
PRO 4350GE		7 nm 0.007 μm 7.0e-6 mm	21 July 2020	Zen 2	Ryzen 3	Renoir	4	8	3.5 GHz 3,500 MHz 3,500,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
PRO 5350G		7 nm 0.007 μm 7.0e-6 mm	1 June 2021	Zen 3	Ryzen 3	Cezanne	4	8	4 GHz 4,000 MHz 4,000,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
PRO 5350GE		7 nm 0.007 μm 7.0e-6 mm	1 June 2021	Zen 3	Ryzen 3	Cezanne	4	8	3.6 GHz 3,600 MHz 3,600,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
1400	$ 169.00 € 152.10 £ 136.89 ¥ 17,462.77	14 nm 0.014 μm 1.4e-5 mm	11 April 2017	Zen	Ryzen 5	Summit Ridge	4	8	3.2 GHz 3,200 MHz 3,200,000 kHz	3.4 GHz 3,400 MHz 3,400,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
1500X	$ 189.00 € 170.10 £ 153.09 ¥ 19,529.37	14 nm 0.014 μm 1.4e-5 mm	11 April 2017	Zen	Ryzen 5	Summit Ridge	4	8	3.5 GHz 3,500 MHz 3,500,000 kHz	3.7 GHz 3,700 MHz 3,700,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
1600	$ 219.00 € 197.10 £ 177.39 ¥ 22,629.27	14 nm 0.014 μm 1.4e-5 mm	11 April 2017	Zen	Ryzen 5	Summit Ridge	6	12	3.2 GHz 3,200 MHz 3,200,000 kHz	3.6 GHz 3,600 MHz 3,600,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
1600X	$ 249.00 € 224.10 £ 201.69 ¥ 25,729.17	14 nm 0.014 μm 1.4e-5 mm	11 April 2017	Zen	Ryzen 5	Summit Ridge	6	12	3.6 GHz 3,600 MHz 3,600,000 kHz	4 GHz 4,000 MHz 4,000,000 kHz	95 W 95,000 mW 0.127 hp 0.095 kW
2400G	$ 169.00 € 152.10 £ 136.89 ¥ 17,462.77	14 nm 0.014 μm 1.4e-5 mm	12 February 2018	Zen	Ryzen 5	Raven Ridge	4	8	3.6 GHz 3,600 MHz 3,600,000 kHz	3.9 GHz 3,900 MHz 3,900,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
2400GE		14 nm 0.014 μm 1.4e-5 mm	19 April 2018	Zen	Ryzen 5	Raven Ridge	4	8	3.2 GHz 3,200 MHz 3,200,000 kHz	3.8 GHz 3,800 MHz 3,800,000 kHz	35 W 35,000 mW 0.0469 hp 0.035 kW
2500X		12 nm 0.012 μm 1.2e-5 mm	10 September 2018	Zen+	Ryzen 5	Pinnacle Ridge	4	8	3.6 GHz 3,600 MHz 3,600,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
2600	$ 170.00 € 153.00 £ 137.70 ¥ 17,566.10	12 nm 0.012 μm 1.2e-5 mm	19 April 2018	Zen+	Ryzen 5	Pinnacle Ridge	6	12	3.4 GHz 3,400 MHz 3,400,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
2600E		12 nm 0.012 μm 1.2e-5 mm	10 September 2018	Zen+	Ryzen 5	Pinnacle Ridge	6	12	3.1 GHz 3,100 MHz 3,100,000 kHz		45 W 45,000 mW 0.0603 hp 0.045 kW
2600X	$ 229.00 € 206.10 £ 185.49 ¥ 23,662.57	12 nm 0.012 μm 1.2e-5 mm	19 April 2018	Zen+	Ryzen 5	Pinnacle Ridge	6	12	3.6 GHz 3,600 MHz 3,600,000 kHz		95 W 95,000 mW 0.127 hp 0.095 kW
3400G		12 nm 0.012 μm 1.2e-5 mm	7 July 2019	Zen+	Ryzen 5	Picasso	4	8	3.7 GHz 3,700 MHz 3,700,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
3500		7 nm 0.007 μm 7.0e-6 mm 12 nm 0.012 μm 1.2e-5 mm		Zen 2	Ryzen 5	Matisse	6	6	3.6 GHz 3,600 MHz 3,600,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
3500X		7 nm 0.007 μm 7.0e-6 mm 12 nm 0.012 μm 1.2e-5 mm		Zen 2	Ryzen 5	Matisse	6	6	3.6 GHz 3,600 MHz 3,600,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
3600	$ 199.00 € 179.10 £ 161.19 ¥ 20,562.67	7 nm 0.007 μm 7.0e-6 mm 12 nm 0.012 μm 1.2e-5 mm	7 July 2019	Zen 2	Ryzen 5	Matisse	6	12	3.6 GHz 3,600 MHz 3,600,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
3600X	$ 249.00 € 224.10 £ 201.69 ¥ 25,729.17	7 nm 0.007 μm 7.0e-6 mm 12 nm 0.012 μm 1.2e-5 mm	7 July 2019	Zen 2	Ryzen 5	Matisse	6	12	3.8 GHz 3,800 MHz 3,800,000 kHz		95 W 95,000 mW 0.127 hp 0.095 kW
3600XT	$ 249.00 € 224.10 £ 201.69 ¥ 25,729.17	7 nm 0.007 μm 7.0e-6 mm 12 nm 0.012 μm 1.2e-5 mm	7 July 2020	Zen 2	Ryzen 5	Matisse	6	12	3.8 GHz 3,800 MHz 3,800,000 kHz		95 W 95,000 mW 0.127 hp 0.095 kW
4600G		7 nm 0.007 μm 7.0e-6 mm	21 July 2020	Zen 2	Ryzen 5	Renoir	6	12	3.7 GHz 3,700 MHz 3,700,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
4600GE		7 nm 0.007 μm 7.0e-6 mm	21 July 2020	Zen 2	Ryzen 5	Renoir	6	12	3.3 GHz 3,300 MHz 3,300,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
5600G	$ 259.00 € 233.10 £ 209.79 ¥ 26,762.47	7 nm 0.007 μm 7.0e-6 mm	13 April 2021	Zen 3	Ryzen 5	Cezanne	6	12	3.9 GHz 3,900 MHz 3,900,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
5600GE		7 nm 0.007 μm 7.0e-6 mm	13 April 2021	Zen 3	Ryzen 5	Cezanne	6	12	3.4 GHz 3,400 MHz 3,400,000 kHz		35 W 35,000 mW 0.0469 hp 0.035 kW
5600X	$ 299.00 € 269.10 £ 242.19 ¥ 30,895.67	7 nm 0.007 μm 7.0e-6 mm 12 nm 0.012 μm 1.2e-5 mm	5 November 2020	Zen 3	Ryzen 5	Vermeer	6	12	3.7 GHz 3,700 MHz 3,700,000 kHz		65 W 65,000 mW 0.0872 hp 0.065 kW
PRO 1500		14 nm 0.014 μm 1.4e-5 mm	29 June 2017	Zen	Ryzen 5	Summit Ridge	4	8	3.5 GHz 3,500 MHz 3,500,000 kHz	3.7 GHz 3,700 MHz 3,700,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
PRO 1600		14 nm 0.014 μm 1.4e-5 mm		Zen	Ryzen 5	Summit Ridge	6	12	3.2 GHz 3,200 MHz 3,200,000 kHz	3.6 GHz 3,600 MHz 3,600,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
PRO 2400G	$ 169.00 € 152.10 £ 136.89 ¥ 17,462.77	14 nm 0.014 μm 1.4e-5 mm	10 May 2018	Zen	Ryzen 5	Raven Ridge	4	8	3.6 GHz 3,600 MHz 3,600,000 kHz	3.9 GHz 3,900 MHz 3,900,000 kHz	65 W 65,000 mW 0.0872 hp 0.065 kW
Count: 93

Photos

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  Socket AM4

Package Diagrams

Approximate dimensions of the "Summit Ridge" (≤ 8C, Zen, 14 nm, Feb. 2017) and "Pinnacle Ridge" (≤ 8C, Zen+, 12 nm, April 2018) package. All dimensions in millimeters.

Approximate dimensions of the "Raven Ridge" desktop package (≤ 4C/11CU, Zen, 14 nm, Oct. 2017). Mobile and embedded versions are available in a FP5 package. All dimensions in millimeters.

Approximate dimensions of the "Matisse" package (≤ 16C, Zen 2, 7/14 nm, July 2019). The left CCD is unpopulated in ≤ 8C models. All dimensions in millimeters.

Socket Diagrams

No data available. The diagram shows the dimensions of Foxconn Interconnect Technology Part No. PZ1331A-51ZZ*-1H. All dimensions in millimeters.

Socket drawing: https://www.fit-foxconn.com/Product/FileDownload?file=spec&path=%2FImages%2FProducts%2FSpec%2FPZ1331A-51ZZ0-1H_20181218103237.pdf&fileName=PZ1331A-51ZZ0-1H_20181218103237&fileType=pdf&fileClassID=2&productClass=Socket&productFamily=CPU%20Socket&productSeries=PGA%2FBGA&productNo=PZ1331A-51ZZ0-1H&version=7

Pin Map

AM4 pinout, top view. Click to flip and rotate.

Pin Description

Signal	Description
MA/MB_ACT_L	DRAM Channel A/B Activation Command
MA/MB_ADD[13:0]	DRAM Column/Row Address
MA/MB_ADD_17	DRAM Column/Row Address 17
MA/MB_ALERT_L	DRAM Alert (CRC error and Command/Address parity error)
MA/MB_BANK[1:0]	DRAM Bank Address
MA/MB_BG[1:0]	DRAM Bank Group
MA/MB_CAS_L_ADD[15]	DRAM Column Address Strobe or Column/Row Address 15
MA/MB_CHECK[7:0]	DRAM ECC Check Bits
MA/MB_DATA[63:0]	DRAM Data Bus
MA/MB_DM[8:0]	DRAM Data Mask
MA/MB_DQS_H/L[8:0]	DRAM Differential Data Strobe
MA/MB_EVENT_L	DRAM Thermal Event Status
MA/MB_PAROUT	DRAM Command/Address Parity
MA/MB_RAS_L_ADD[16]	DRAM Row Address Strobe or Column/Row Address 16
MA/MB_RESET_L	DRAM Reset
MA/MB_WE_L_ADD[14]	DRAM Write Enable or Column/Row Address 14
MA/MB_ZVDDIO_MEM_S3
MA/MB_ZVSS	DRAM Interface Drive-Strength Auto-Compensation Resistor to VSS
MA0/MA1/MB0/MB1_CKE[1:0]	DRAM Channel A/B DIMM 0/1 Clock Enable
MA0/MA1/MB0/MB1_CLK_H/L[3:0]	DRAM Channel A/B DIMM 0/1 Differential Clock
MA0/MA1/MB0/MB1_CS_L[1:0]	DRAM Channel A/B DIMM 0/1 Chip Select
MA0/MA1/MB0/MB1_ODT[1:0]	DRAM Channel A/B DIMM 0/1 Enable Pin for On Die Termination
P_GFX_RXP/RXN[15:0]	PCIe GFX Receive Data Differential Pairs
P_GFX_TXP/TXN[15:0]	PCIe GFX Transmit Data Differential Pairs
P_GPP_RXP/RXN[3:0]	PCIe GPP Receive Data Differential Pairs
P_GPP_TXP/RXN[3:0]	PCIe GPP Transmit Data Differential Pairs
P_HUB_RXP/RXN[3:0]	PCIe Hub (chipset) Receive Data Differential Pairs
P_HUB_TXP/TXN[3:0]	PCIe Hub Transmit Data Differential Pairs
PCIE_RST_L	Reset signal for PCIe devices
P_ZVDDP
P_ZVSS
P0A/P0B_ZVSS	PCIe Drive-Strength Auto-Compensation Resistor to VSS
SATA_RX(0-1)P/N	SATA Receive Data Differential Pairs (alt. func. of P_GPP[2], P_GPP[3])
SATA_TX(0-1)P/N	SATA Transmit Data Differential Pairs
SATA_ACT_L	SATA Channel Active (HD LED
SGPIO0_CLK	SGPIO Interface CLK Output; SGPIO supported on Socket AM4?
SGPIO0_DATAIN	SGPIO DATA Input
SGPIO0_DATAOUT	SGPIO DATA Output
SGPIO0_LOAD	SGPIO LOAD Output
SATA_IS(0-1)_L
SATA_ZP(0-1)_L	Zero Power SATA ODD
SATA_ZVDDP
SATA_ZVSS
DP0-DP2_TXP/TXN[3:0]	DisplayPort 0-2 Main Link Differential Transmitter Lane 0-3
DP0-DP2_AUXP/AUXN	DisplayPort 0-2 Auxiliary Channel
DP0-DP2_HPD	DisplayPort 0-2 Hot Plug Detect Input
DP_BLON	Display Panel Backlight Enable
DP_DIGON	Display Panel Power Enable
DP_VARY_BL	Display Backlight Brightness Control
DP_STEREOSYNC	StereoSync output for shutter glasses
DP_AUX_ZVSS
DP_ZVSS
USB_HSD(0-3)P/N	USB Port 0-3 High Speed I/O Differential Pairs
USB_SS_(0-3)RXP/RXN	USB Port 0-3 Super Speed Receive Differential Pairs
USB_SS_(0-3)TXP/TXN	USB Port 0-3 Super Speed Transmit Differential Pairs
USB_OC(0-3)_L	USB Port 0-3 Over Current signal from USB connector
USB_SS_ZVDDP
USB_SS_ZVSS
USB_ZVSS
USB(0-3)_ZVSS	USB Port 0-3 Drive-Strength Auto-Compensation Resistor to VSS
AZ_BITCLK	Azalia HD Audio Interface Bit Clock
AZ_RST_L	HDA Reset
AZ_SDIN(0-2)	HDA Serial Data Input from Codec 0-2
AZ_SDOUT	HDA Serial Data Output to Codec
AZ_SYNC	HDA Sync Signal to Codec
SPKR	PC speaker/beeper PWM output
SPI_CLK	SPI Clock
SPI_DO	SPI Data Out or Data 0 for multi-I/O SPI/eSPI device
SPI_DI	SPI Data In or Data 1
SPI_WP_L	SPI Write Protect or Data 2
SPI_HOLD_L	SPI Hold Signal (asserted low to hold the SPI transaction) or Data 3
SPI_TPM_CS_L	SPI Chip Select for TPM
SPI_CS1/CS2_L	SPI Chip Select
ESPI_CLK	ESPI Clock (alt. func. of SPI_CLK)
ESPI_DAT(0-3)	ESPI Data[0], Data[1:0], Data[3:0] (alt. func. of SPI_DO/DI/WP_L/HOLD_L)
ESPI_CS_L	ESPI Chip Select (SPI_CS2_L)
ESPI_ALERT_L	ESPI Alert Input (LDRQ0_L)
ESPI_RESET_L	ESPI Reset (KBRST_L)
LAD(0-3)	LPC Command/Address/Data
LDRQ0_L	Encoded DMA/Bus Master Request 0
LFRAME_L	LPC Bus Frame
LPCCLK(0-1)	LPC 33 MHz Clock
LPC_CLKRUN_L	LPC CLKRUN Signal
LPC_PD_L	LPC Power Down
LPC_PME_L	LPC Power Management Event
LPC_RST_L	LPC Reset
SERIRQ	Serial IRQ for DMA
I2C(2-3)_SCL	I2C Port 2-3 Clock
I2C(2-3)_SDA	I2C Port 2-3 Data
SCL0	SMBus Port 0 Clock (alt. func. of I2C2)
SDA0	SMBus Port 0 Data
SCL1	SMBus Port 1 Clock (alt. func. of I2C3)
SDA1	SMBus Port 1 Data
AGPIO*	Advanced GPIO pin for interrupt, wake, or I/O
EGPIO*	Enhanced GPIO for I/O only
GENINT(1-2)_L	Generic Interrupt Request
GFX_CLKP/N	PCIe GFX 100 MHz Differential Reference Clock
GPP_CLK0(0-3)P/N	PCIe GPP 100 MHz Differential Reference Clock
CLK_REQG_L	PCIe GFX Clock Request
CLK_REQ(0-3)_L	PCIe GPP Clock Request
OSCIN	14 MHz Clock Input
X32K_X1/X2	32768 Hz Clock XTAL for the integrated RTC
X48M_X1/X2	48 MHz Clock XTAL for the integrated clock generator
RTCCLK	32768 Hz Real Time Clock output, for a device requiring an RTC clock
X48M_OSC	48 MHz clock output for devices requiring a single-ended OSC input
KBRST_L	Keyboard Controller Reset Input (warm reset)
PWR_BTN_L	Power Button; Requests sleep state or causes wake event
PWR_GOOD	Power Good Input; Asserted when all voltages and clock inputs are within specification
PWROK	Power OK; Asserted by the processor after all power planes are active, the system clock generators are powered up and run stably
RESET_L	Bidirectional signal that resets the processor when asserted; Normally controlled by an internal state machine but can also be asserted by a second external source
RSMRST_L	Resume Reset from motherboard; Asserted on power up, deasserted when S5 power supplies are within specification
S0A3_GPIO	S0A3 Indicator
SLP_S3/S5_L	S3/S5 Sleep State Power Plane Control Signal
SYS_RESET_L	System Reset Input (reset button)
WAKE_L	PCIe WAKE_L signal, wake system out of sleep state
BLINK	Blink LED S-state Indicator
FANIN0	Fan tachometer input
FANOUT0	Fan PWM output
ALERT_L	Programmable pin that can indicate different events, including a SB-TSI interrupt
PROCHOT_L	Asserted to force the processor into HTC-active state
SIC	Sideband Interface (SB-TSI) Clock
SID	Sideband Interface Data
THERMTRIP_L	Temperature Trip Input/Output
DBREQ_L	Debug Request input to JTAG controller
DBRDY
TCK	JTAG Clock
TDI	JTAG Data Input
TDO	JTAG Data Output
TMS	JTAG Mode Select
TRST_L	JTAG Reset
TEST*	Test Pins
SVC	Serial VID Interface Clock
SVD	Serial VID Interface Data
SVT	Serial VID Interface Telemetry
VDDIO_AUDIO	Azalia HD Audio power supply
VDDBT_RTC_G	Integrated Real Time Clock battery power supply
VDDCR_CPU	Core power supply
VDDCR_CPU_SENSE	VDDCR_CPU voltage monitor pin
VDDCR_SOC	Supply voltage for the Northbridge
VDDCR_SOC_SENSE	VDDCR_SOC voltage monitor pin
VDDCR_SOC_S5	Always on SOC power supply
VDDIO_MEM_S3	1.2 V DRAM supply voltage
VDDIO_MEM_S3_SENSE	VDDIO_MEM_S3 voltage monitor pin
VDDP
VDDP_SENSE	VDDP voltage monitor pin
VDDP_S5
VDD_18	1.8 V supply voltage
VDD_18_S5	Always on 1.8 V supply voltage
VDD_33	3.3 V supply voltage
VDD_33_S5	Always on 3.3 V supply voltage
VSS	Ground
VSS_SENSE_A	VSS sense pin for voltage regulator
VSS_SENSE_B	VSS sense pin for voltage regulator
CORETYPE[1:0]	Processor Core Type Indicator
AM4R1	Processor Family Revision Identifier
RSVD	Reserved

See also

• Socket AM3+
• Socket AM5
• Socket FM2+
• Socket SP3
• Socket TR4
• Socket sTRX4
• Package FP5
• Package FP6