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34 Thermal and Mechanical Design Guidelines
Figure 15. (G)MCH Reference Heatsink for ATX Platforms – Ramp Retainer Sheet 1
2X 31.1
1.225[]
62 0.05
.079
.001[]
661.51
2.422[]
670.49
2.775[]
2X 27.95
1.100[]
3
.118[]
NOTES:
1. THIS DRAWING TO BE USED IN CONJUNCTION WITH SUPPLIED 3D
DATABASE FILE. ALL DIMENSIONS AND TOLERANCES ON THIS
DRAWING TAKE PRECEDENCE OVER SUPPLIED FILE AND ARE
APPLICABLE AT PART FREE, UNCONSTRAINED STATE UNLESS
INDICATED OTHERWISE.
2. TOLERANCES ON DIMENSIONED AND UNDIMENSIONED
FEATURES UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS.
FOR FEATURE SIZES < 10MM: LINEAR .07
FOR FEATURE SIZES BETWEEN 10 AND 25 MM: LINEAR .08
FOR FEATURE SIZES BETWEEN 25 AND 50 MM: LINEAR .10
FOR FEATURE SIZES > 50MM: LINEAR .18
ANGLES: 0.5
3. MATERIAL:
A) TYPE: ENVIRONMENTALLY COMPLIANT THERMOPLASTIC OR
EQUIVALENT UPON INTEL APPROVAL (REF. GE LEXAN 500ECR-739)
B) CRITICAL MECHANICAL MATERIAL PROPERTIES
FOR EQUIVALENT MATERIAL SELECTION:
TENSILE YIELD STRENGTH (ASTM D638) > 57 MPa
TENSILE ELONGATION AT BREAK (ASTM D638) >= 46%
FLEXURAL MODULUS (ASTM D638) 3116 MPa 10%
SOFTENING TEMP (VICAT, RATE B): 154 C
C) COLOR: APPROXIMATING BLACK, (REF GE 739)
D) REGRIND: 25% PERMISSIBLE.
E) VOLUME - 1.73e+03 CUBIC-MM (REF)
WEIGHT - 2.16 GRAMS (REF)
5 MARK PART WITH INTEL P/N, REVISION, CAVITY NUMBER
AND DATE CODE APPROX WHERE SHOWN PER INTEL MARKING
STANDARD 164997
6 CRITICAL TO FUNCTION DIMENSION
7. ALL DIMENSIONS SHOWN SHALL BE MEASURED FOR FAI
8. NOTE REMOVED
9. DEGATE: FLUSH TO 0.35 BELOW STRUCTURAL THICKNESS
(GATE WELL OR GATE RECESS ACCEPTABLE)
10. FLASH: 0.15 MAX.
11. SINK: 0.25 MAX.
12. EJECTOR MARKS: FLUSH TO -0.25
13. PARTING LINE MISMATCH NOT TO EXCEED 0.25.
14. EJECTION PIN BOSSES, GATING, AND TOOLING INSERTS REQUIRE
INTEL'S APPROVAL PRIOR TO TOOL CONSTRUCTION.
ALL EJECTION PIN BOSSES AND GATE FEATURES SHOWN
ARE FOR REFERENCE ONLY.
15. EDGES SHOWN AS SHARP R 0.1 MAX.
16. TOOLING REQUIRED TO MAKE THIS PART SHALL BE THE
PROPERTY OF INTEL, AND SHALL BE PERMANENTLY MARKED
WITH INTEL'S NAME AND APPROPRIATE PART NUMBER.
17. ALL SECONDARY UNIT DIMENSIONS ARE FOR REFERENCE ONLY.
SEE DETAIL C
5
SEE DETAIL ASEE DETAIL A
SEE DETAIL C