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Socket S1g4 — AMD — WikiChip

Socket S1g4 was the fourth and last socket for OPGA-638-packaged AMD mobile microprocessors with an integrated DDR2 and DDR3 memory controller, and the successor to Socket S1g3. Its counterparts for desktop processors are Socket AM3 and Socket AM3+, for servers Socket C32 and Socket G34. For the small form factor desktop, mobile and embedded market AMD developed package ASB2. Socket S1g4 was superseded by Socket FS1 supporting mobile processors with integrated graphics.

The main improvement of Socket S1g4 over S1g3 is support for DDR3 memory. As the number of CPU cores in the package grew to three and four, voltage regulators were integrated on the chip and support for two core power planes was dropped.

Socket S1g4 was used in AMD’s «Danube» mobile platform. All processors for Socket S1g4, codename «Champlain», are members of AMD’s Family 10h with CPU cores based on the K10 microarchitecture and were fabricated on a 45 nm SOI process.

All revisions of Socket S1 have the same dimensions, however processors for Socket S1g4 appear to be electrically incompatible with Socket S1g1 and vice versa. Processors for Socket S1g2 have a DDR2 memory controller and will not work in Socket S1g4. To which extent Socket S1g4 processors are compatible with Socket S1g2 and S1g3, in DDR2 mode and with a suitable BIOS, is unclear.

1 Features
2 Chipsets
3 Processors using Socket S1g4
4 Package Diagram
5 Socket Outline
6 Pin Map
- 6.1 Differences between Socket S1 revisions
7 References
8 See also

Features[edit]

638-pin lidless micro pin grid array package, 1.27 mm pitch, 26 × 26 pins, 35 × 35 mm, organic substrate, C4 (flip chip) die attachment

16 bit HyperTransport 3.0 interface up to 1800 MHz, 3600 MT/s, 7.2 GB/s in each direction

2 × 64 bit DDR2 SDRAM interface up to 400 MHz, PC2-6400 (DDR2-800), 12. 8 GB/s or
2 × 64 bit DDR3 SDRAM interface up to 667 MHz, PC3-10600 (DDR3-1333), 21.3 GB/s
- Up to 2 SODIMMs, no ECC support
- DDR2 JEDEC SSTL_1.8, DDR3 JEDEC 1.5V, 1.35V

Power Management
- AMD PowerNow! technology
- ACPI C1, C1E, C2, C3, C5/Altvid, S1, S3, S4, S5
- Separate core and northbridge power planes
- Two northbrige P-states

Thermal Controls
- Thermal protection
- Hardware thermal control
- Thermal diode

Chipsets[edit]

AMD 880M
AMD SB820 southbridge

Processors using Socket S1g4[edit]

AMD Phenom II Quad-Core Mobile
AMD Phenom II Triple-Core Mobile
AMD Phenom II Dual-Core Mobile
AMD Turion II Dual-Core Mobile
AMD Athlon II Dual-Core Mobile
AMD V-Series

Package Diagram[edit]

No data available. Dimensions should be similar to those of the OPGA-638 package shown on the Socket S1g1 page.

Socket Outline[edit]

Socket S1 limits as specified in AMD Publ. #31839. Depicted is Foxconn Interconnect Technology Part No. PZ6382A-284S-01F. All dimensions in millimeters.

Pin Map[edit]

Differences between Socket S1 revisions[edit]

Pin	S1g1	S1g2/S1g3	S1g4	Description
R21	MA_ADD[0]	MA_ADD[10]	MA_ADD[10]	DRAM Column/Row Address
N21	MA_ADD[1]	MA_ADD[0]	MA_ADD[0]
M22	MA_ADD[3]	MA_ADD[4]	MA_ADD[4]
M24	MA_ADD[4]	MA_ADD[6]	MA_ADD[6]
M20	MA_ADD[5]	MA_ADD[1]	MA_ADD[1]
M19	MA_ADD[6]	MA_ADD[3]	MA_ADD[3]
L22	MA_ADD[8]	MA_ADD[11]	MA_ADD[11]
L19	MA_ADD[9]	MA_ADD[8]	MA_ADD[8]
R19	MA_ADD[10]	MA_RAS_L	MA_RAS_L
L20	MA_ADD[11]	MA_ADD[5]	MA_ADD[5]
K24	MA_ADD[12]	MA_ADD[14]	MA_ADD[14]
K20	MA_ADD[14]	MA_ADD[12]	MA_ADD[12]
T22	MA_BANK[0]	MA_CAS_L	MA_CAS_L	DRAM Bank Address / Column Address Strobe
R20	MA_BANK[1]	MA_BANK[0]	MA_BANK[0]
R23	RSVD	MA_BANK[1]	MA_BANK[1]
K22	MA_BANK[2]	MA_ADD[9]	MA_ADD[9]
U20	MA_CAS_L	MA1_CS_L[0]	MA1_CS_L[0]	DRAM Column Address Strobe / Chip Select
J21	MA_CKE[0]	MA_BANK[2]	MA_BANK[2]	DRAM Clock Enable / Bank Address
T20	MA_RAS_L	MA0_CS_L[0]	MA0_CS_L[0]	DRAM Row Address Strobe / Chip Select
U21	MA_WE_L	MA1_ODT[0]	MA1_ODT[0]	DRAM Write Enable / Enable Pin for On Die Termination
E16	MA0_CLK_H[1]	MA_CLK_H[1]	MA_CLK_H[1]	DRAM Differential Clock
F16	MA0_CLK_L[1]	MA_CLK_L[1]	MA_CLK_L[1]
P19	RSVD	MA_CLK_H[4]	MA_CLK_H[4]
P20	RSVD	MA_CLK_L[4]	MA_CLK_L[4]
N19	RSVD	MA_CLK_H[5]	MA_CLK_H[5]
N20	RSVD	MA_CLK_L[5]	MA_CLK_L[5]
Y16	MA0_CLK_H[2]	MA_CLK_H[7]	MA_CLK_H[7]
AA16	MA0_CLK_L[2]	MA_CLK_L[7]	MA_CLK_L[7]
T19	MA0_CS_L[0]	MA0_ODT[0]	MA0_ODT[0]
V22	MA0_CS_L[1]	MA0_ODT[1]	MA0_ODT[1]
J22	MA0_CS_L[2]	MA_CKE[0]	MA_CKE[0]
V19	MA0_CS_L[3]	MA1_ODT[1]	MA1_ODT[1]
U19	MA0_ODT[0]	MA0_CS_L[1]	MA0_CS_L[1]
V20	MA0_ODT[1]	MA1_CS_L[1]	MA1_CS_L[1]
h26	RSVD	RSVD_M1	MA_RESET_L	DRAM Reset Pin for Suspend-to-RAM Power Management Mode
T24	MB_ADD[0]	MA_WE_L	MA_WE_L
P26	MB_ADD[1]	MB_ADD[2]	MB_ADD[2]
P24	MB_ADD[2]	MB_ADD[0]	MB_ADD[0]
N26	MB_ADD[3]	MB_ADD[4]	MB_ADD[4]
N25	MB_ADD[4]	MB_ADD[6]	MB_ADD[6]
N24	MB_ADD[5]	MB_ADD[1]	MB_ADD[1]
N23	MB_ADD[6]	MB_ADD[3]	MB_ADD[3]
L26	MB_ADD[7]	MB_ADD[11]	MB_ADD[11]
L24	MB_ADD[9]	MB_ADD[7]	MB_ADD[7]
U25	MB_ADD[10]	MB_RAS_L	MB_RAS_L
L25	MB_ADD[11]	MB_ADD[12]	MB_ADD[12]
L23	MB_ADD[12]	MB_ADD[5]	MB_ADD[5]
W25	MB_ADD[13]	MB0_CS_L[1]	MB0_CS_L[1]
J26	MB_ADD[14]	MB_BANK[2]	MB_BANK[2]
J25	MB_ADD[15]	MB_CKE[0]	MB_CKE[0]
R24	RSVD	MB_BANK[0]	MB_BANK[0]
U26	MB_BANK[0]	MB_BANK[1]	MB_BANK[1]
T26	MB_BANK[1]	MB_ADD[10]	MB_ADD[10]
K26	MB_BANK[2]	MB_ADD[9]	MB_ADD[9]
V26	MB_CAS_L	MB0_CS_L[0]	MB0_CS_L[0]
J23	MB_CKE[0]	MB_ADD[14]	MB_ADD[14]
U24	MB_RAS_L	MB_CAS_L	MB_CAS_L
U22	MB_WE_L	MB1_CS_L[0]	MB1_CS_L[0]
A17	MB0_CLK_H[1]	MB_CLK_H[1]	MB_CLK_H[1]
A18	MB0_CLK_L[1]	MB_CLK_L[1]	MB_CLK_L[1]
R26	RSVD	MB_CLK_H[4]	MB_CLK_H[4]
R25	RSVD	MB_CLK_L[4]	MB_CLK_L[4]
P22	RSVD	MB_CLK_H[5]	MB_CLK_H[5]
R22	RSVD	MB_CLK_L[5]	MB_CLK_L[5]
AF18	MB0_CLK_H[2]	MB_CLK_H[7]	MB_CLK_H[7]
AF17	MB0_CLK_L[2]	MB_CLK_L[7]	MB_CLK_L[7]
U23	MB0_CS_L[0]	MB_WE_L	MB_WE_L
W24	MB0_CS_L[1]	MB_ADD[13]	MB_ADD[13]
J24	MB0_CS_L[2]	MB_ADD[15]	MB_ADD[15]
Y26	MB0_CS_L[3]	MB1_ODT[0]	MB1_ODT[0]
B18	RSVD	RSVD_M2	MB_RESET_L
AA8	RSVD	MEMHOT_L	MEMHOT_L	DRAM Thermal Protection input
A3	PSI_L	RSVD	RSVD	Power Status Indicator (low power mode) for VDD regulator
W8	TEST4	THERMDA	THERMDA	Thermal Diode, Anode
W7	TEST5	THERMDC	THERMDC	Thermal Diode, Cathode
AA7	TEST13	RSVD	RSVD
AE6	TEST26	ALERT_L	ALERT_L	Programmable pin that can indicate different events, including a SB-TSI interrupt
M11	VSS	KEY1	VSS
W18	RSVD	KEY2	RSVD
misc.	VDD	VDD0	VDD	Core power supply
F6	VDD_FB_H	VDD0_FB_H	VDD0_FB_H	Differential feedback to VDD0 regulator
E6	VDD_FB_L	VDD0_FB_L	VDD0_FB_L
misc.	VDD	VDD1	VDD
Y6	TEST3	VDD1_FB_H	VDD1_FB_H	Differential feedback to VDD1 regulator
AB6	TEST2	VDD1_FB_L	VDD1_FB_L
misc.	VDD	VDDNB	VDDNB	Northbridge power supply
H6	RSVD	VDDNB_FB_H	VDDNB_FB_H	Differential feedback to VDDNB regulator
G6	RSVD	VDDNB_FB_L	VDDNB_FB_L
B5	VID[0]	RSVD	RSVD	Voltage ID for VDD regulator
C5	VID[1]	RSVD	RSVD
A4	VID[2]	SVD	SVD	Serial Voltage ID Interface, Data
A6	VID[3]	SVC	SVC	Serial Voltage ID Interface, Clock
C6	VID[4]	LDTREQ_L	LDTREQ_L	HT link is active or requested by a device (HT Gen 3. 0)
A5	VID[5]	RSVD	RSVD
misc.	VTT	VTT	VDDR
Y10	VTT_SENSE	VTT_SENSE	VDDR_SENSE	VTT / VDDR monitor pin

References[edit]

«Low-Profile Socket S1 Design Specification», AMD Publ. #31839, Rev. 3.01, April 10, 2007
«BIOS and Kernel Developer’s Guide (BKDG) For AMD Family 10h Processors», AMD Publ. #31116, Rev. 3.62, January 14, 2013
«Revision Guide for AMD Family 10h Processors», AMD Publ. #41322, Rev. 3.92, March 2012
«AMD RS880M Databook Device Specification for the RS880M and RS880MC», AMD Publ. #46113, Rev. 1.30, 2010

What Is Socket S1? (with picture)

Internet

Fact Checked

Alex Newth

Last Modified Date: January 09, 2023

The socket S1 is an AMD®-built socket made to house central processing units (CPUs) for the mobile computing, or laptop, market. There are 638 contacts included on the socket S1, and it comes with a rotating locking unit instead of a lever device like most other sockets. As of July 2011, there are four CPUs made to work with this socket, though there are others that can fit into the S1 socket. In terms of power, the socket S1 can reach about 1.8 to 3.2 gigahertz (GHz), with most processors clocking in around 2.1 to 2.5 GHz; this socket also can support four cores at once. There were four total revisions of this socket before it was retired, with the last one adding new core and memory support.

When it comes to the main design of the socket S1, the contacts, this socket looks like many others. There are a total of 660 contacts, but 22 of them are plugged, so 638 are electronically active; in the center there is a small square without any contacts. The actuator, or locking unit, is different from other sockets. With most sockets, there is a lever that is pulled up to unlock the CPU; with the S1 socket, the actuator is half-turned to unlock the CPU.

There have been four processors officially created for the socket S1. These are the Athlon 64 X2®, Turion 64 MK®, Turion 64 X2® and Mobile Sempron®. All four of these processors are used in laptops rather than in desktop computers.

All sockets are made to support a certain range of power, which helps the CPU perform its duties. The socket S1 can reach up to 3.2 GHz and has a low range of 1.8 GHz. CPUs commonly hit the middle of this range, between 2.1 and 2.5 GHz. The data-transferring rates for memory range from around 800 to 1,333 megahertz (MHz).

In total, there have been four revisions of the socket S1, with the last one referred to as S1g4. This revision made improvements over the other ones by including extra core support, up to four separate cores for higher processing abilities. This socket also supports double data rate type three (DDR3) synchronous dynamic random access memory (SDRAM), which the earlier versions did not support. While the last revision has many new supports, it is physically identical to the other versions; all the differences are electronically present.

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Socket S1g4 — AMD — WikiChip

Contents

Features[edit]

Chipsets[edit]

Processors using Socket S1g4[edit]

Package Diagram[edit]

Socket Outline[edit]

Pin Map[edit]

Differences between Socket S1 revisions[edit]

References[edit]

See also[edit]

What Is Socket S1? (with picture)

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