Why upgrade X735?



All thing is for the new arrival of Raspberry Pi 4 Model B.

Current version is X735 V2.1 which updated at Octber 30th 2019, change jumper 'FAN_HS' to 'AUTO ON' function; because we found 'AUTO ON' function is more useful to user.

X735 is upgaded to V2.0 on September 11th 2019, it add TYPE C power port for Raspberry Pi 4 Model B, and replace the 'select button' with L-SW jumper, add the another FAN_HS jumer to enable full speed fan.



At this point, you already have a mini linux working host.



Because X735 V2.0/V2.1 add a type-c port, so it not fit to X850 V4.0 metal case, But you can use the air gun to remove the TYPE C port (firstly remove the fan), then x735 v2.0/V2.1 is compatible with this case.

Foreword:

We always want to provide safe shutdown, power management and other functions for our old series products, such as X820/X850. Due to various restrictions and considerations, we did not upgrade the old products, but chose to provide the functional expansion board for the old products. This is the original intention of the X735. With the arrival of the X735, the X860/X870/X852/X822 was released together.

The X735 board can be used with X820 kit and X850 kit, please refer to:

Click to get: Raspberry Pi X820 V3.0 2.5 inch SATA Storage Board + DC 5V 4A Power Supply + Metal Case Kit



Click to get: Raspberry Pi X850 V3.0 mSATA SSD Storage Board + Metal Case with Cooling Fan Kit

Overview

The X735 is a multifunctional expansion board for all current models of the Raspberry Pi using a 40-pin header. It provides intelligent and safe power management, safe shutdown and full poweroff through software, an automatic temperature controlled fan which enables the use of the Raspberry Pi in extreme conditions including very high temperature environments. The X735 also reserves the 40-pin header that can be stacked with other Raspberry Pi accessory boards for enhanced applications.

WIKI for reference: www.raspberrypiwiki.com/index.php/X735

Notes:

1. Full poweroff through software is not supported when using latching power switch.

2. Do not apply power to your Raspberry Pi via the Pi's Micro-USB socket.

3.For the safe shutdown script, please refer to: raspberrypiwiki.com/X735#Document



Key Features

For Use With: Raspberry Pi 41 Model B/3B+/3B/2B/3A+

Operating System: Raspbian Stretch

Safe shutdown function tested for Raspbian, other operating systems NOT to be tested and advised

Intelligent and safe power management



Equipped with both momentary button and latching switch for easy power control

Press the momentary button to turn on

Press the momentary button and hold for 1~2seconds to reboot

Press the momentary button and hold for 3~7seconds to implement safe shutdown

Press the momentary button and hold for >8seconds to force shutdown

Supports safe shutdown and full poweroff through software

Onboard switch convenient to select latching or momentary power control switches

Press the latching power switch once to turn on and again to implement safe shutdown

Onboard LED shows the status of power on, reboot and shutdown

Onboard PH2.0 connectors allows to use external latching switch or momentary button

Powers the Raspberry Pi via the 40pin header no additional cabling required

Allows power input via DC jack or MicroUSB socket or XH2.54 connector

Allows power output via XH2.54 socket and or the 40pin header

Auto cooling function

Dual trip point temperature controlled cooling fan

AutoControl the fan for Cooling / quiet Operation

Board temperature ≤34C Fan running at low speed

Board temperature ≥34C Fan running at medium speed

Board temperature ≥45C Fan running at full speed

Onboard LEDs show the status of fan running low and high

No driver and additional setting required for the cooling fan

Others

Reserved 40pin stackable Header for AddOn Boards

Works with all current models of the Raspberry Pi using a 40 pin header

Onboard microUSB socket for power input No need to change the power adapter

Fully compatible with our products X825, X855, X820, X850, X860, X870, X822, X852 to provide intelligent and safe power management

Compatible With:

Specification

Power supply: 5.1Vdc +/-5%，2.5~4A

Board size: 65 x 58mm

Packing List

1 x X735 v2.1 Board

8 x Screw M2.5*6

4 x Spacer F/M M2.5*12+6

4 x Spacer F/F M2.5*12

Note:

Because X735 V2.0/V2.1 add a type-c port, so it not fit to X850 V4.0 metal case, But you can use the air gun to remove the TYPE C port (firstly remove the fan), then x735 v2.0/V2.1 is compatible with this case.