System and method for compression Dual In-Line Memory Module reversibility
A dual in-line memory module (DIMM) includes memory devices arranged to be accessed via at least one memory channel. The DIMM further includes an array of surface contact connections each configured to be engaged with an associated contact element of a z-axis compression connector. The array of surface contact connections are arranged to conduct signals for the memory channels.
1. A dual in-line memory module (DIMM) comprising:
a plurality of memory devices mounted on at least one of a first surface and a second surface of a circuit board of the DIMM, and arranged to be accessed via at least one memory channel; and
array of first surface contact connections arranged on the first surface, each first surface contact connection engaged with an associated compression contact element of a z-axis compression connector, wherein the first surface contact connections conduct signals for the memory channel, and wherein the z-axis compression connector is configured to be attached to a circuit board of an information handling system.
2. The DIMM of claim 1 , wherein a first set of the first surface contact connections is associated with a first memory channel, and is arranged as a mirror image of a second set of the first surface contact connections associated with a second memory channel with respect to a middle row of the first surface contact connections.
3. The DIMM of claim 1 , wherein a first set of the first surface contact connections is associated with a first memory channel, and is arranged as a mirror image of a second set of the first surface contact connections associated with a second memory channel with respect to a middle column of the first surface contact connections.
4. The DIMM of claim 1 , wherein the DIMM is a fifth generation Double Data Rate (DDR5) DIMM.
5. The DIMM of claim 4 , wherein the plurality of memory devices are arranged to be accessed via four memory channels.
6. The DIMM of claim 5 , wherein a first set of the first surface contact connections associated with a first memory channel and a second set of the first surface contact connections associated with a second memory channel are arranged as a mirror image of a third set of the first surface contact connections associated with a third memory channel and a fourth set of the first surface contact connections associated with a fourth memory channel with respect to a middle row of the first surface contact connections.
7. The DIMM of claim 6 , wherein the first set of the first surface contact connections and the third set of the first surface contact connections are arranged as a mirror image of the second set of the first surface contact connections and the fourth set of the first surface contact connections with respect to a middle column of the first surface contact connections.
8. The DIMM of claim 1 , wherein the DIMM further includes an array of second surface contact connections, each second surface contact connection being connected to an associated one of the first surface contact connections and located directly in line with the associated one of the first surface contact connections.
9. An information handling system, comprising:
a z-axis compression connector including an array of compression contact elements;
a dual in-line memory module (DIMM) including:
a plurality of memory devices mounted on at least one of a first surface and a second surface of a memory circuit board of the DIMM, and arranged to be accessed via at least one memory channel; and
an array of first surface contact connections arranged on the first surface, each first surface contact connection configured to be engaged with an associated one of the compression contact elements, the first surface contact connections to conduct signals for the memory channel; and
a printed circuit board (PCB), wherein a first side of the z-axis compression connector is affixed to a first side of the printed circuit board, wherein the DIMM is affixed via the first surface to a second side of the z-axis compression connector, and wherein the compression contact elements are disposed on the second side of the z-axis compression connector.
10. The information handling system of claim 9 , further comprising:
a backing plate affixed to a second side of the PCB; and
a bolster affixed to the second surface of the DIMM.
11. The information handling system of claim 10 , further comprising:
at least one fastener attached through the backing plate, the PCB, the z-axis compression connector, the DIMM, and the bolster, the fastener to provide a compression between the DIMM and the z-axis compression connector.
12. The information handling system of claim 9 , wherein the z-axis compression connector includes a lever actuated compression device configured in a first state to provide a compression between the DIMM and the z-axis compression connector, and in a second state to permit removal of the DIMM from the information handling system.
13. The information handling system of claim 9 , wherein a first set of the first surface contact connections is associated with a first memory channel, and is arranged as a mirror image of a second set of the first surface contact connections associated with a second memory channel with respect to a middle row of the first surface contact connections.
14. The information handling system of claim 9 , wherein a first set of the first surface contact connections is associated with a first memory channel, and is arranged as a mirror image of a second set of the first surface contact connections associated with a second memory channel with respect to a middle column of the the surface contact connections.
15. The information handling system of claim 9 , wherein the DIMM is a fifth generation Double Data Rate DIMM.
16. The information handling system of claim 15 , wherein the plurality of memory devices are arranged to be accessed via four memory channels.
17. The information handling system of claim 16 , wherein a first set of the first surface contact connections associated with a first memory channel and a second set of the first surface contact connections associated with a second memory channel are arranged as a mirror image of a third set of the first surface contact connections associated with a third memory channel and a fourth set of the first surface contact connections associated with a fourth memory channel with respect to a middle row of the first surface contact connections.
18. The information handling system of claim 17 , wherein the first set of the first surface contact connections and the third set of the first surface contact connections are arranged as a mirror image of the second set of the first surface contact connections and the fourth set of the first surface contact connections with respect to a middle column of the first surface contact connections.
19. The information handling system of claim 9 , wherein the DIMM further includes an array of second surface contact connections, each second surface contact connection being connected to an associated one of the first surface contact connections and located directly in line with the associated one of the first surface contact connections.
20. A method, comprising:
mounting, on at least one of a first surface and a second surface of a memory circuit board of a dual in-line memory module (DIMM), a plurality of memory devices arranged to be accessed via at least one memory channel;
fabricating, on the first surface, an array of surface contact connections, each surface contact connection configured to be engaged with an associated compression contact element of a z-axis compression connector, the array arranged to conduct signals for the memory channel;
affixing the z-axis compression connector to a surface of a printed circuit board via a first surface of the z-axis compression connector; and
affixing the DIMM to a second surface of the z-axis compression connector, wherein the second surface of the z-axis compression connector includes the associated compression contact elements.