Difference between revisions of "amd/packages/socket am4"

	Edit Values
	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

Revision as of 05:48, 7 December 2020

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

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
Segment	Chipset	3.1 G1	3.1 G2	2.0	SATA	SATAe	PCIe	RAID	Dual PCIe	Overclocking
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	✘
Small Form Factor	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
Chipset	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

Socket Photographs

Socket AM4

Package Diagram

No data available. Approximate dimensions of the µOPGA-1331 package. All dimensions in millimeters.

Socket Outline

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 pins, package bottom view.

Pin Description

This article is a work in progress!

Signal	Description
48M_OSC
AGPIO*	General Purpose I/O Pin
ALERT_L
AM4R1	Socket identification
AZ_BITCLK	Azalia HD Audio Interface Bit Clock
AZ_RST_L	HD Audio Interface Reset
AZ_SDIN[2:0]	HD Audio Serial Data Inputs from Codec
AZ_SDOUT	HD Audio Serial Data Output to Codec
AZ_SYNC	HD Audio Sync signal to Codec
BLINK
CLK_REQ[3:0]_L
CLK_REQG_L
CORETYPE[1:0]	Processor identification
DBREQ_L, DBRDY	Debug Request, Ready
DP[2:0]_AUXP/N	Display Port Auxiliary Channel Differential Pairs
DP[2:0]_HPD	Display Port Hot Plug Detect
DP[2:0]_TXP/N[3:0]	Display Port Differential Transmitter
DP_AUX_ZVSS	Compensation Resistor to VSS
DP_BLON	Display Panel Backlight Enable
DP_DIGON	Display Panel Power Enable
DP_STEREOSYNC	VESA Stereo Sync
DP_VARY_BL	Display Backlight Brightness Control
DP_ZVSS	Compensation Resistor to VSS
EGPIO*	General Purpose I/O Pin
ESPI_ALERT_L
ESPI_CLK	ESPI Clock
ESPI_CS_L	ESPI Chip Select
ESPI_DAT[3:0]	ESPI Data
ESPI_RESET_L
FANIN0
FANOUT0
GENINT1/2_L
GFX_CLKP/N	GFX Differential Reference Clock
GPP_CLK[3:0]P/N	GPP Lane 3:0 Differential Reference Clock
I2C[3:2]_SCL/SDA	I2C Bus Clock, Data
LAD[3:0]	Low Pin Count Interface Command/Address/Data
KBRST_L
LDRQ0_L
LFRAME_L	LPC Bus Frame
LPCCLK[1:0]	LPC 33 MHz Clock
LPC_CLKRUN_L	LPC CLKRUN Signal
LPC_PD_L	LPC Power Down
LPC_PME_L	LPC PME Signal
LPC_RST_L	LPC Reset
MA/B[1:0]_CKE[1:0]	DRAM Clock Enable
MA/B[1:0]_CS_L[1:0]	DRAM Chip Select
MA/B[1:0]_ODT[1:0]	DRAM Enable Pins for On Die Termination
MA/B_ACT_L	DRAM Activation Command
MA/B_ADD[13:0]	DRAM Column/Row Address
MA/B_ADD_17	DRAM Address Bit A17 (16 GBit DRAMs)
MA/B_ALERT_L	DRAM CRC or Parity Error
MA/B_BANK[1:0]	DRAM Bank Address
MA/B_BG[1:0]	DRAM Bank Group
MA/B_CAS_L_ADD15	DRAM Column Address Strobe or Address A15
MA/B_CHECK[7:0]	DRAM ECC Bits
MA/B_CLK_L/H[3:0]	DRAM Differential Clock
MA/B_DATA[63:0]	DRAM Data Bus
MA/B_DM[8:0]	DRAM Data Mask
MA/B_DQS_L/H[8:0]	DRAM Differential Data Strobe
MA/B_EVENT_L	DRAM Thermal Event Status
MA/B_PAROUT	DRAM Command/Address Parity
MA/B_RAS_L_ADD16	DRAM Row Address Strobe or Address A16
MA/B_RESET_L	DRAM Reset Pin for Suspend-to-RAM Power Management Mode
MA/B_WE_L_ADD14	DRAM Write Enable or Address A14
MA/B_ZVDDIO_MEM_S3
MA/B_ZVSS	Compensation Resistor to VSS
OSCIN
P0A_ZVSS	Compensation Resistor to VSS
P0B_ZVSS	Compensation Resistor to VSS
PCIE_RST_L	PCIe Reset
PROCHOT_L	Processor in HTC-active state
PWROK	Voltages and clocks have reached specified operation
PWR_BTN_L
PWR_GOOD
P_GFX_TX/RXP/N[15:0]	GFX PCIe Transmit/Receive Data Differential Pairs
P_GPP_TX/RXP/N[3:0]	General Purpose PCIe Transmit/Receive Data Differential Pairs
SATA_IS[1:0]_L
SATA_TX/RX[1:0]P/N	SATA Transmit/Receive Data Differential Pairs
SATA_ZP[1:0]_L
P_HUB_TX/RXP/N[3:0]	Hub PCIe Transmit/Receive Data Differential Pairs
P_ZVDDP
P_ZVSS	Compensation Resistor to VSS
RESET_L	Processor Reset
RSMRST_L	Resume Reset, VSB power on reset for South Bridge
RSVD	Reserved
RTCCLK	32 kHz input for RTC
S0A3_GPIO
S5_MUX_CTRL
SATA_ACT_L	SATA Channel Active
SATA_ZVDDP
SATA_ZVSS	Compensation Resistor to VSS
SCL[1:0], SDA[1:0]	SMBus Clock, Data
SERIRQ	LPC SERIRQ Signal
SGPIO0_CLK
SIC, SID	Sideband Temperature Sensor Interface Clock, Data
SLP_S3_L
SLP_S5_L
SPI_CLK	SPI Clock
SPI_CS1/2_L	SPI Chip Select
SPI_DI/DO	SPI Data Input/Output
SPI_HOLD_L
SPI_TPM_CS_L
SPI_WP_L	SPI Write Protect
SPKR
SVC, SVD	Serial VID Interface Clock, Data
SVT
SYS_RESET_L	System Reset
TCK, TDI, TDO, TMS, TRST_L	JTAG Interface
TEST*	Test Signals
THERMTRIP_L	Thermal Sensor Trip Output
USB[3:0]_ZVSS	Compensation Resistor to VSS
USB_HSD[3:0]P/N	USB High Speed Data Differential Pairs
USB_OC[3:0]_L	USB Over Current
USB_SS_[3:0]TX/RXP/N	USB Super Speed Transmit/Receive Differential Pairs
USB_SS_ZVDDP
USB_SS_ZVSS	Compensation Resistor to VSS
USB_ZVSS	Compensation Resistor to VSS
VDDBT_RTC_G
VDDCR_CPU	Core Power Supply
VDDCR_CPU_SENSE	VDDCR_CPU Voltage Monitor Pin
VDDCR_SOC	SOC Power Supply
VDDCR_SOC_S5
VDDCR_SOC_SENSE	VDDCR_SOC Voltage Monitor Pin
VDDIO_AUDIO
VDDIO_MEM_S3	DRAM I/O Ring Power Supply
VDDIO_MEM_S3_SENSE	VDDIO_MEM_S3 Voltage Monitor Pin
VDDP
VDDP_S5
VDDP_SENSE	VDDP Voltage Monitor Pin
VDD_18	1.8V SOC Power Supply
VDD_18_S5
VDD_33	3.3V SOC Power Supply
VDD_33_S5
VSS	Ground
VSS_SENSE_A/B
WAKE_L	PCIe WAKE Signal
X32K_X1/2	RTC Crystal Oscillator
X48M_X1/2

@@ Line 39: / Line 39: @@
 | A320 || colspan="4" {{tchk|yes}} || colspan="3" {{tchk|no}}
 |-
-| A520 || colspan="5" {{tchk|no}} ||colspan="2" {{tchk|yes}}
+| A520 || colspan="4" {{tchk|no}} || colspan="3" {{tchk|yes}}
 |-
-| B350 || colspan="4" {{tchk|yes}} || colspan="3" {{tchk|no}}
+| B350 || colspan="4" {{tchk|yes}} || * || colspan="3" {{tchk|no}}
 |-
-| B450 || colspan="7" {{tchk|yes}}
+| B450 || colspan="6" {{tchk|yes}} || *
 |-
-| B550 || colspan="5" {{tchk|no}} ||colspan="2" {{tchk|yes}}
+| B550 || colspan="4" {{tchk|no}} || colspan="3" {{tchk|yes}}
 |-
-| X370 || colspan="4" {{tchk|yes}} || colspan="3" {{tchk|no}}
+| X370 || colspan="4" {{tchk|yes}} || * || colspan="3" {{tchk|no}}
 |-
-| X470 || colspan="7" {{tchk|yes}}
+| X470 || colspan="6" {{tchk|yes}} || *
 |-
-| X570 || colspan="2" {{tchk|no}} ||colspan="5" {{tchk|yes}}
+| X570 || colspan="2" {{tchk|no}} || colspan="5" {{tchk|yes}}
 |}
+ * - Selective Beta BIOS update required
 == Processors using Socket AM4 ==

designer	AMD +
first launched	September 2016 +
instance of	package +
market segment	Desktop +
microarchitecture	Zen +
name	Socket AM4 +
package	OPGA-1331 +
package contacts	1,331 +
package length	40 mm (4 cm, 1.575 in) +
package pitch	1 mm (0.0394 in) +
package type	Organic Micro Pin Grid Array +
package width	40 mm (4 cm, 1.575 in) +
socket	Socket AM4 +
tdp	105 W (105,000 mW, 0.141 hp, 0.105 kW) +

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