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kobol-wiki/docs/helios64/hardware.md

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## Block Diagram
### Helios64 Carrier Board
![!Block Diagram](/helios64/img/hardware/helios64-block-diagram.png)
### RK3399 System-On-Chip
![!Block Diagram](/helios64/img/hardware/RK3399_block_diagram.png)
This block diagram is cited from the RK3399 website documentation. [1](http://opensource.rock-chips.com/wiki_File:RK3399_Block_Diagram.png)
## Connector / Interface List
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![!Board Legend](/helios64/img/hardware/helios64_board_labeled.png)
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Name |Peripheral Type|Connector Type|Details
-----|---------------|--------------|-------
P10|eMMC|2x1 Pin Male Header|Disable eMMC boot
P11|SPI Flash|2x1 Pin Male Header|Disable SPI Flash
P13|HS Select|2x1 Pin Male Header|USB-C HS Select (Close = Type C HS, Open = Console)
J1|USB3|USB 3.0| USB 3.0 Port Header
J3|SATA|SATA 3.0|Port 0 (SATA1)
J4|SATA|SATA 3.0|Port 1 (SATA2)
J5|SATA|SATA 3.0|Port 2 (SATA3)
J6|SATA|SATA 3.0|Port 3 (SATA4)
J7|HDD Power|8 Pin ATX 12V|Rated for 5x HDD
J8|SATA|SATA 3.0|Port 4 (SATA5)
J9|Battery Power|6 Pin ATX 12V|Battery Backup
J10|ATX Power Supply|4 Pin ATX 12V|4 Pin ATX Power Connector
J11|LAN1|RJ45|Gigabit Ethernet
J12|LAN2|RJ45|2.5 Gigabit Ethernet
J13|USB 3.0|Dual Port USB3.0|Type A
J14|microSD|Push-Push card connector|Support SDHC and SDXC
J15|Serial port|Micro-USB Connector|Via onboard FTDI USB-to-UART0 bridge
J16|DC connector|Kycon 4-Pin Mini-DIN|DC input 12V / 8A
FAN1|Fan|4x1 Pin Male Header|PWM and RPM support
FAN2|Fan|4x1 Pin Male Header|PWM and RPM support
P1|I2C|4x1 Pin Male Header|I2C Bus 1
P2|UEXT|2x5 Pin Male Header|Universal EXTension Support [2]
P3|Front Panel|12x1 Pin Male Header|PWM and RPM support
P4|Buzzer|2x1 Pin Header|Buzzer Speaker Support
P5|GPIO|7x2 Pin Male Header|GPIO configurable as input or output<br>Via IO Expander on I2C Bus 0
SW1|Power|Push Button|Power Button
SW2|Boot Mode|Push Button|Boot mode selector :<br> SPI,MMC,UART,SATA
SW3|Reset|Push Button|Reset Button
## Boot Modes
Helios64 supports at least **3 (TBD)** boot modes that can be chosen by using the jumper configuration.
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Please see above figure for the connector/interface list.
Following jumper are available in the Helios64 board to configure the boot modes:
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- P10 jumper to disable eMMC, when this jumper close it means disable the eMMC device (open = enable eMMC),
- P11 jumper to disable SPI Flash, when this jumper is shorted/close it means disable the SPI Flash (open = enable SPI Flash),
- P13 jumper is the HS select, when this jumper closed the High Speed (USB 2.0) connection to the SoC will be establised, so you can use flashing technology such as rockusb and marskom.
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[comment]: <> (its also called as HS select, when this jumper is closed the micro USB-C connector become type-C HS (open = console), your USB-C cable will connected to the serial console of the Helios64 board by default. By closing this connection the USB-C connection will become the HS mode, the eMMC will be detected as the USB Mass storage in your PC, in this configuration can directly flash the Armbian image to it.)
![Dipswitch modes](/helios64/img/hardware/p11-13-jumper.png)
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All the ready-to-use images we provide are for the **SD Card** boot mode.
Please refer to [U-boot](/helios4/uboot) section to know how to use the other modes.
## LED indicators
LED Name|Color|Description
---|---|---
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LED1|red/blue|SATA1 activity
LED2|red/blue|SATA2 activity
LED3|red/blue|SATA3 activity
LED4|red/blue|SATA4 activity
LED5|red/blue|SATA5 activity
LED6|blue|USB activity
LED7|blue|Network activity
LED8|red/blue|System status/activity
LED9|green|SYS power
LED10|green|HDD power
LED11|green|USB power
LED12|orange|Battery Charge
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## Reset Button
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Helios64 board provides a RESET push button (RST BTN) to hard reset the SoC (System-On-Chip).
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!!! Important
This button only resets the SoC and not the overall board. For instance it won't reset the HDD.
## I2C Interface
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Helios64 board exposes the SoC I2C Bus 1, on header P1. Below is the header pin-out, the little arrow on the PCB indicates the ground pin.
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![I2C Pinout](/helios64/img/hardware/i2c_pinout.png)
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## Power Consumption
**Board only**
* Idle : 3.6 Watts
* Active : 5.6 Watts
**Full Kit (with 4x HDDs)**
| State | AC calculated<br>power consumption | DC measured<br>power consumption | Remarks |
|---------------------|----------------------|----------------------|---------------------|
| Idle | 19.3 W | 16.8 W | |
| HDD Read Access | 27.4 W | 22.8 W | |
| HDD Write Access | 30.3 W | 25.2 W | |
| Standby | 8.0 W | 6.7 W | HDD in Standby mode |
| Suspend-to-Ram | 7.2 W | 6.0 W | HDD in Standby mode |
!!! note
Measures were done using a Current Clamp Meter on the Helios4 12V DC input. AC Power consumption is calculated based on a AC/DC conversion efficiency of 85%.
* Meter tool : Extech 380942 - 30A True RMS AC/DC Mini Clamp
* AC/DC Adapter : yczx1268 (efficiency : 85%)
* AC Input Voltage: 220V
* HDD: 4x WD Red 2TB (WD20EFRX) configured as RAID10
* Network : Connected at 1000Mb/s
* OS: ARMBIAN 5.73 stable Debian GNU/Linux 9 (stretch) 4.14.98-mvebu
## HDD Recommendation List
We recommend HDD which are designed for NAS (Network Attached Storage). Those NAS HDD are specially conceived for reliable 24/7 operation and offers lower power consumption and dissipation, less vibration and noise, and finally better warranty. We recommend the following models :
**Western Digital** : WD Red NAS (1, 2, 3, 4, 6, 8 and 10TB)
- WD10EFRX
- WD20EFRX
- WD30EFRX
- WD40EFRX
- WD60EFRX
- WD80EFZX
- WD100EFAX
**Seagate** : IronWolf NAS (1, 2, 3, 4, 6, 8 and 10TB)
- ST1000VN002
- ST2000VN004
- ST3000VN007
- ST4000VN008
- ST6000VN0041
- ST8000VN0022
- ST10000VN0004
**HGST** : Deskstar NAS (4, 6 and 8TB)
- 0S04005
- 0S04007
- 0S04012
!!! note
We recommend to order from different shop to avoid having all the drives from the same factory batch. For instance, you should order 2x HDDs from one shop, then the 2 others from another shop.
## HDD / SSD Compability List
Please refer to [Synology DS416j Compatibility List](https://www.synology.com/en-global/compatibility?search_by=products&model=DS416j&category=hdds&p=1) that covers a large number of tested drives. The DS416j used the same SoC family than Helios4.
## References
1. http://opensource.rock-chips.com/wiki_File:RK3399_Block_Diagram.png
2. https://en.wikipedia.org/wiki/UEXT
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