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P165
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[[File:P165-B-1.jpg|thumb|right|11mm Embedded Heatsink: P165-B]][[File:P165-B-2.jpg|thumb|right|11mm Embedded Heatsink: P165-B]][[File:P165-3.jpg|thumb|right|7mm Embedded Heatsink: P165-A]][[File:P165-2.jpg|thumb|right|7mm Embedded Heatsink: P165-A]][[File:P165-1.jpg|thumb|right|7mm Embedded Heatsink: P165-A]][[File:散热器配件Screws Pack for P165-螺丝-加说明A.jpg|thumb|right|Screws Pack for P165-A embedded heatsink]][[File:P165-001.jpg|thumb|right|P165 with armor case bottom cover]][[File:X825+X735+P165.jpg|thumb|right|X825 V2.0+X735+P165-A]]
# The P165(P165-A) Embedded Armor Aluminum Alloy Heatsink Radiator is 7mm high (designed with negative tolerance) and is equipped with M2.5*5+5 copper spacers; so the total height is 12mm, which can support most of Raspberry Pi 4 expansion boards(not support PoE expansion board); if you use expansion board with other height, you only need to replace the copper spacers with the right height. (If you need a special height copper spacers, please contact us.)
# The raspberry pi hat positioning hole has internal thread for easy fixing from above or below; Compared to the raspberry pi PCB, the entire heat sink shrinks inward by 0.5 mm.
'''Why design this new P165-B 11mm heatsink?'''
# We found that the copper spacers height required for most Raspberry Pi expansion boards is 11mm, so we designed this 11mm embedded heatsink(P165-B). Compared with the old model(P165-A), the heat dissipation area is increased and the heat dissipation effect will be better;
# at the same time, this new version support POE extension;
'''What if the Raspberry Pi 4 expansion board comes into contact with the P165-B 11mm heatsink?'''
* Please use the 2*20 female header to add the height of expanion board.
==Update History==
# We only keep the M2.5*5+4mm, M2.5*5+5mm, M2.5*13+6mm spacers in the P165-A packing list(in August 2021), due to the Raspberry Pi expansion board usually with 12mm or 20mm height, the three spacers combination are enough in application.
# On November 11th, 2020, based on customer feedback, a slightly thicker version was released, which is 11mm thickness. It supports 3010 cooling fan, will have a better heat dissipation function and compatible with PoE expansion board. This new embedded heatsink is named P165-B, while the old radiator will be renamed P165-A from P165.
# On July 2020, update the cooling fan of P165 embedded radiator from 2506 to 2507.
* Only supports Raspberry Pi 4 Model B;
* Supports to cooling down the Raspberry Pi 4 board when using the Pi 4 expansion board;(Please choose P165-B if you need to use it with PoE board);
* Equipped with a variety of screws and copper spacers;(The screw packs of P165-A1 A and P165-B are different);
* Raspberry Pi HAT positioning hole is M2.5 internal thread; (this design is convenient to fix);
* Supports fan installation; Cooling fan can be added when the heat dissipation of a single aluminum heat sink is not enough;
'''How to connect the cooling fan'''
[[File:风扇接口细节-1500X1500.jpg|500px]]
==Compare==
[[File:P165-B-VS-P165-A.jpg|700px|P165-B VS P165-A]]
==Packing List==
P165-A Packing List:* 1x 7mm armor embedded heatsink(P165-A)* 4 x PM2.5x12mm Screws* 4 x M2.5x5 +4mm Spacers* 4 x M2.5x5 +5mm Spacers* 4 x M2.5x13 +6mm Spacers* 1 x thermal tape (cut for CPU and RAM)* 1 x 2507 cooling Fan (optional) P165-B Packing List:
* 1 x 11mm armor heatsink(P165-B)* 4 x M2.5x5+5mm spacers* 1x screws packthermal tape( free gift, only use when you need)
==Document==
Installation Video for P165-A and P165-B: https://youtu.be/so8klKaebJ8
{{#ev:youtube|https://youtu.be/so8klKaebJ8}}
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