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Thermal and Mechanical Design Guidelines 33
Figure 14. (G)MCH Reference Heatsink for ATX Platforms – Anchor
65.21 0.12
.205
.004[]
4X 67.83 0.12
.308
.004[]
2X 10.13 0.12
.399
.004[]
2X 60.77 0.1
.030
.003[]
7.62 0.15
.300
.005[]
2.5 0.15
.098
.005[]
0.64
0
-0.07
.025
+.000
-.002
[]
65.08 0.12
.200
.004[]
2X 3.94 0.15
.155
.005[]
2X 45 2
2X 4
.157[]
2X 0.5 0.05
.020
.001[]
2X 0.75
.030[]
0.64
0
-0.07
.025
+.000
-.002
[]
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 > 10MM: LINEAR .08
ANGLES: 0.5
3. MATERIALS:
INSULATOR: POLYCARBONATE THERMOPLASTIC, UL 94V-0, BLACK (739)
(REF. GE LEXAN 3412R-739)
CONTACT: BRASS OR EQUIVALENT UPON INTEL APPROVAL
CONTACT FINISH: .000050u" MIN. NICKEL UNDER PLATING;
SOLDER TAILS, 0.000100" MIN TIN ONLY SOLDER (LEAD FREE).
5. MARK WITH INTEL P/N AND REVISION PER INTEL MARKING
STANDARD 164997; PER SEC 3.8 (POLYETHYLENE BAG)
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.
45 X 0.2 MIN
2X CHAMFER ALL AROUND
CONTACT TO INSULATOR INTERFACE
AT SUPPLIERS OPTION