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VRM – Mechanical Guidelines
7 VRM – Mechanical Guidelines
7.1 VRM Connector - EXPECTED
The part number and vendor name for VRM 11.0 connectors that can be found in
Table 7-1. The VRM reference in Section 7.2, Section 7.3 and Section 7.4, is based on
the Tyco*/Elcon* interface with the system board is a 27-pin pair edge connector. The
connector uses latches to hold the VRM in place. The connector will be rated to handle
a continuous load current of 130 A.
Notes:
1. These vendors are listed by Intel as a convenience to Intel's general customer base, but Intel does not
make any representations or warranties whatsoever regarding quality, reliability, functionality, or
compatibility of these devices. This list and/or these devices may be subject to change without notice.
2. An alternative connector has been identified by Molex for VRMs. This alternative provides many optional
connector variants already in production in both vertical and horizontal (right angle) implementation.
Contact your Molex representative for pin assignment, mechanical form factor details and performance
characteristic data.
7.2 VRM (Tyco/Elcon) Connector Keying
7.2.1 Connector Keying
• Single notch between pins 3 and 4 (51 and 52 opposite side).
• Single notch between pins 12 and 13 (42 and 43 opposite side).
• Single notch between pins 21 and 22 (33 and 34 opposite side).
7.2.2 Connector Pin 1 Orientation
Referencing Figure 7-1, Outline Drawing, Far Side (FS) pins sequence 1 through 27, left
to right. Near Side (NS) pins sequence 54 through 28. Pin 1 and 54 are opposite one
another.
7.3 Pin Descriptions and Assignments
Table 7-2 shows the VRM11.0 connector pin description. Pin assignments are shown in
Table 7-1.
Table 7-1. VRM 11.0 Connector Part Number and Vendor Name
Connector Vendor Part Number Notes
Tyco / Elcon
1651929-1 (Solder Tail)
1766336-1 (Surface Mount)
1766436-1 (Press-Fit)
1
Molex
Molex iCool* VRM 24 signal 70 power pins
87787-1012 (Vertical, TH)
87786-1011 (Vertical, SM)
87818-1011 (Right Angle, TH)
1, 2