TYAN TS65-B7120 Service Engineer's Manual page 47

6. To secure the heatsink assembly, use a T30 Security Torx to tighten the
screws in a sequential order (1234).
NOTE: When disassembling the heatsink, loosen the screws in reverse order
(4321).
7. Repeat the procedures described earlier to install the second processor and
heatsink.
8. Place the air duct on top of the heatsink and screw it to the chassis.
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