These pesky devices have frustrated many...including me. Is there anywhere Intel publishes exactly how to use these "clips" are supposed to be used to attach the heatsink assembly to the motherboard?
There's not much info on them on the Internet, and some of it may be frankly erroneous. The images in the processor "Installation instructions" manual are incomplete.
For example, some recommend you "lock" the assembly (twist the black barrel clockwise), insert the pin into the matching hole on the mobo, then press down to lock it. Others recommend you press down the actuator lock and then press the "spread" pins through the mobo (and I don't think that will even work. Still others suggest you keep the actuator in the "unlocked" position, install the white pins through the motherboard, then "lock" the actuator (turn it clockwise to stop); this is a rather clumsy approach that seems to confuse some folks.\
A clear "how to" video, and accompanying document, by Intel would help alleviate these faulty methods. Is there such a document on the Intel.com website?
I found this.
Boxed Fan Heatsink Installation
NOTE: The thermal solution integration procedures should be performed with the motherboard in the Chassis to provide proper clearance under the motherboard for the fastener mechanisms.
Figure 14.Image no longer available
All the best,
Thanks for that, Aryan. That video was the first I've seen on how to properly install the retention clips.
I have created my own step-by-step for technicians, and I'd love for Intel to publish something like it.
My Current Draft:
These new-fangled push-and-lock pins (which Intel calls the "heatsink attach clip assembly") are used by Intel (and others) to firmly attach a fan/heatsink assembly to a properly prepared motherboard. "Properly prepared" means there are four holes in the printed-circuit board, where the pins will poke through; if those holes aren't present, you can't use the provided pins.
They're unofficially called "Push Pin Locks" (PPL) and look like the illustration at http://www.directron.com/intelpushpins.html
The lock consists of three integral parts, two black and one white. An external black sleeve contains the two other parts, and is attached to the fan/heatsink assembly to be anchored to the board. The other two parts (shown above) move up and down, together, within that attachment sleeve. Insofar as I can tell, you can't separate these parts without rendering them useless.
The white plastic piece has a split pin at the bottom (pointed white plastic, in image above) that fits through a pre-drilled hole in the motherboard (when the split is widened, in the install process, the two halves are held apart on the bottom side of the motherboard, using the black actuater). The white collar, above the split pins, will rest on the top side of the motherboard.
The black, movable piece has a flat "shelf" on top, with which you manipulate the locking mechanism; that piece (until locked) is free to move vertically, and to rotate about 90 degrees. That "shelf" usually has a screwdriver slot on top, and an engraved arrow pointing to the unlocked position (counterclockwise); the locked position is fully clockwise.
Proceed to repeat step 6 with the PPL that is diametrically opposite the one just finished. (Don't move to a PPL adjacent to the one just locked.)
Either of the remaining two pins can be done next, leaving the last to be seated. Warning: They get progressively harder to seat as you go.
When you're done, you should see four split pins poking through the four motherboard holes, each split pin being held open by a central black pin that is the end of the actuator.
Tug (with moderate, but not significant) force on the heatsink to make sure none of the corners breaks free.
To remove the fan/heatsink assembly:
1. Using a screwdriver in the slot on the "shelf" atop the actuator, rotate each of the four actuators counterclockwise (in the direction of the arrow). That unlocks the PPL.
2. Then, one-by-one, pull up on each actuator, retracting the black central pin from the split pin, allowing them to slip back through the motherboard holes.
Pull up (gently) with a rocking motion to free the fan/heatsink assembly from the motherboard and the CPU.
Editorial feedback eagerly solicited; feel free to help me improve this write-up.