S17+ board disappears

This machine has now failed on me three separate times for the exact reason. One of the boards keeps disappearing. Ive sent in for repairs with Bitmain and got the same issue soon after. Did the power cycles, firmware, cleaning - you name it. The randomly the 3rd board will appear just fine then once again disappear a week later. Ive emailed support a few times but no response this time.

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Here is the Kernal Log 

Booting Linux on physical CPU 0x0
Linux version 4.6.0-xilinx-gff8137b-dirty (lzq@armdev2) (gcc version 4.8.3 20140320 (prerelease) (Sourcery CodeBench Lite 2014.05-23) ) #25 SMP PREEMPT Fri Nov 23 15:30:52 CST 2018
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine model: Xilinx Zynq
cma: Reserved 16 MiB at 0x0e000000
Memory policy: Data cache writealloc
On node 0 totalpages: 61440
free_area_init_node: node 0, pgdat c0b39280, node_mem_map cde10000
Normal zone: 480 pages used for memmap
Normal zone: 0 pages reserved
Normal zone: 61440 pages, LIFO batch:15
percpu: Embedded 12 pages/cpu @cddf1000 s19776 r8192 d21184 u49152
pcpu-alloc: s19776 r8192 d21184 u49152 alloc=12*4096
pcpu-alloc: [0] 0 [0] 1
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 60960
Kernel command line: mem=240M console=ttyPS0,115200 ramdisk_size=33554432 root=/dev/ram rw earlyprintk
PID hash table entries: 1024 (order: 0, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 203432K/245760K available (6345K kernel code, 231K rwdata, 1896K rodata, 1024K init, 223K bss, 25944K reserved, 16384K cma-reserved, 0K highmem)
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xcf800000 - 0xff800000 ( 768 MB)
lowmem : 0xc0000000 - 0xcf000000 ( 240 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc090c424 (9234 kB)
.init : 0xc0a00000 - 0xc0b00000 (1024 kB)
.data : 0xc0b00000 - 0xc0b39fe0 ( 232 kB)
.bss : 0xc0b39fe0 - 0xc0b71c28 ( 224 kB)
Preemptible hierarchical RCU implementation.
Build-time adjustment of leaf fanout to 32.
RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=2
NR_IRQS:16 nr_irqs:16 16
efuse mapped to cf800000
ps7-slcr mapped to cf802000
L2C: platform modifies aux control register: 0x72360000 -> 0x72760000
L2C: DT/platform modifies aux control register: 0x72360000 -> 0x72760000
L2C-310 erratum 769419 enabled
L2C-310 enabling early BRESP for Cortex-A9
L2C-310 full line of zeros enabled for Cortex-A9
L2C-310 ID prefetch enabled, offset 1 lines
L2C-310 dynamic clock gating enabled, standby mode enabled
L2C-310 cache controller enabled, 8 ways, 512 kB
L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x76760001
zynq_clock_init: clkc starts at cf802100
Zynq clock init
sched_clock: 64 bits at 333MHz, resolution 3ns, wraps every 4398046511103ns
clocksource: arm_global_timer: mask: 0xffffffffffffffff max_cycles: 0x4ce07af025, max_idle_ns: 440795209040 ns
Switching to timer-based delay loop, resolution 3ns
clocksource: ttc_clocksource: mask: 0xffff max_cycles: 0xffff, max_idle_ns: 537538477 ns
ps7-ttc #0 at cf80a000, irq=18
Console: colour dummy device 80x30
Calibrating delay loop (skipped), value calculated using timer frequency.. 666.66 BogoMIPS (lpj=3333333)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x100000 - 0x100058
CPU1: failed to boot: -1
Brought up 1 CPUs
SMP: Total of 1 processors activated (666.66 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor menu
hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 4 bytes.
zynq-ocm f800c000.ps7-ocmc: ZYNQ OCM pool: 256 KiB @ 0xcf880000
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
media: Linux media interface: v0.10
Linux video capture interface: v2.00
pps_core: LinuxPPS API ver. 1 registered
pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
PTP clock support registered
EDAC MC: Ver: 3.0.0
Advanced Linux Sound Architecture Driver Initialized.
clocksource: Switched to clocksource arm_global_timer
NET: Registered protocol family 2
TCP established hash table entries: 2048 (order: 1, 8192 bytes)
TCP bind hash table entries: 2048 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
PCI: CLS 0 bytes, default 64
Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (no cpio magic); looks like an initrd
Freeing initrd memory: 12904K (cce67000 - cdb01000)
hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
futex hash table entries: 512 (order: 3, 32768 bytes)
workingset: timestamp_bits=28 max_order=16 bucket_order=0
jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
dma-pl330 f8003000.ps7-dma: Loaded driver for PL330 DMAC-241330
dma-pl330 f8003000.ps7-dma: DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Events-16
e0000000.serial: ttyPS0 at MMIO 0xe0000000 (irq = 158, base_baud = 6249999) is a xuartps
console [ttyPS0] enabled
xdevcfg f8007000.ps7-dev-cfg: ioremap 0xf8007000 to cf86e000
[drm] Initialized drm 1.1.0 20060810
brd: module loaded
loop: module loaded
CAN device driver interface
gpiod_set_value: invalid GPIO
libphy: MACB_mii_bus: probed
macb e000b000.ethernet eth0: Cadence GEM rev 0x00020118 at 0xe000b000 irq 31 (00:0a:35:00:00:00)
Generic PHY e000b000.etherne:00: attached PHY driver [Generic PHY] (mii_bus:phy_addr=e000b000.etherne:00, irq=-1)
e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
usbcore: registered new interface driver usb-storage
mousedev: PS/2 mouse device common for all mice
i2c /dev entries driver
Xilinx Zynq CpuIdle Driver started
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
mmc0: SDHCI controller on e0100000.ps7-sdio [e0100000.ps7-sdio] using ADMA
ledtrig-cpu: registered to indicate activity on CPUs
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xda
nand: Micron MT29F2G08ABAEAWP
nand: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
nand: WARNING: pl35x-nand: the ECC used on your system is too weak compared to the one required by the NAND chip
Bad block table found at page 131008, version 0x01
Bad block table found at page 130944, version 0x01
6 ofpart partitions found on MTD device pl35x-nand
Creating 6 MTD partitions on "pl35x-nand":
0x000000000000-0x000002800000 : "BOOT.bin-env-dts-kernel"
0x000002800000-0x000004800000 : "ramfs"
0x000004800000-0x000005000000 : "configs"
0x000005000000-0x000006000000 : "reserve"
0x000006000000-0x000008000000 : "ramfs-bak"
0x000008000000-0x000010000000 : "reserve1"
NET: Registered protocol family 10
sit: IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
can: controller area network core (rev 20120528 abi 9)
NET: Registered protocol family 29
can: raw protocol (rev 20120528)
can: broadcast manager protocol (rev 20120528 t)
can: netlink gateway (rev 20130117) max_hops=1
zynq_pm_ioremap: no compatible node found for 'xlnx,zynq-ddrc-a05'
zynq_pm_late_init: Unable to map DDRC IO memory.
Registering SWP/SWPB emulation handler
hctosys: unable to open rtc device (rtc0)
ALSA device list:
No soundcards found.
RAMDISK: gzip image found at block 0
EXT4-fs (ram0): couldn't mount as ext3 due to feature incompatibilities
EXT4-fs (ram0): mounted filesystem without journal. Opts: (null)
VFS: Mounted root (ext4 filesystem) on device 1:0.
devtmpfs: mounted
Freeing unused kernel memory: 1024K (c0a00000 - c0b00000)
EXT4-fs (ram0): re-mounted. Opts: block_validity,delalloc,barrier,user_xattr
random: dd urandom read with 0 bits of entropy available
ubi0: attaching mtd2
ubi0: scanning is finished
ubi0: attached mtd2 (name "configs", size 8 MiB)
ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
ubi0: good PEBs: 64, bad PEBs: 0, corrupted PEBs: 0
ubi0: user volume: 1, internal volumes: 1, max. volumes count: 128
ubi0: max/mean erase counter: 9/3, WL threshold: 4096, image sequence number: 262741923
ubi0: available PEBs: 0, total reserved PEBs: 64, PEBs reserved for bad PEB handling: 40
ubi0: background thread "ubi_bgt0d" started, PID 708
UBIFS (ubi0:0): background thread "ubifs_bgt0_0" started, PID 711
UBIFS (ubi0:0): recovery needed
UBIFS (ubi0:0): recovery completed
UBIFS (ubi0:0): UBIFS: mounted UBI device 0, volume 0, name "configs"
UBIFS (ubi0:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
UBIFS (ubi0:0): FS size: 1396736 bytes (1 MiB, 11 LEBs), journal size 888833 bytes (0 MiB, 5 LEBs)
UBIFS (ubi0:0): reserved for root: 65970 bytes (64 KiB)
UBIFS (ubi0:0): media format: w4/r0 (latest is w4/r0), UUID A9E8BDA4-70DE-45D9-83BE-2DD9F129C0C6, small LPT model
ubi1: attaching mtd5
ubi1: scanning is finished
ubi1: attached mtd5 (name "reserve1", size 128 MiB)
ubi1: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
ubi1: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
ubi1: VID header offset: 2048 (aligned 2048), data offset: 4096
ubi1: good PEBs: 1020, bad PEBs: 4, corrupted PEBs: 0
ubi1: user volume: 1, internal volumes: 1, max. volumes count: 128
ubi1: max/mean erase counter: 1545/328, WL threshold: 4096, image sequence number: 3563076859
ubi1: available PEBs: 0, total reserved PEBs: 1020, PEBs reserved for bad PEB handling: 36
ubi1: background thread "ubi_bgt1d" started, PID 720
UBIFS (ubi1:0): background thread "ubifs_bgt1_0" started, PID 723
UBIFS (ubi1:0): recovery needed
UBIFS (ubi1:0): recovery completed
UBIFS (ubi1:0): UBIFS: mounted UBI device 1, volume 0, name "reserve1"
UBIFS (ubi1:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
UBIFS (ubi1:0): FS size: 123039744 bytes (117 MiB, 969 LEBs), journal size 6221824 bytes (5 MiB, 49 LEBs)
UBIFS (ubi1:0): reserved for root: 4952683 bytes (4836 KiB)
UBIFS (ubi1:0): media format: w4/r0 (latest is w4/r0), UUID A21581E4-693A-4BBF-A66A-FCE5ACD2EF7F, small LPT model
IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
macb e000b000.ethernet eth0: unable to generate target frequency: 25000000 Hz
macb e000b000.ethernet eth0: link up (100/Full)
IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
In axi fpga driver!
request_mem_region OK!
AXI fpga dev virtual address is 0xcfb38000
*base_vir_addr = 0xb023
In fpga mem driver!
request_mem_region OK!
fpga mem virtual address is 0xd2000000
random: nonblocking pool is initialized
2021-02-23 02:45:57 driver-btm-api.c:779:init_freq_mode: This is scan-user version
2021-02-23 02:45:57 driver-btm-api.c:2451:bitmain_soc_init: opt_multi_version = 1
2021-02-23 02:45:57 driver-btm-api.c:2452:bitmain_soc_init: opt_bitmain_ab = 1
2021-02-23 02:45:57 driver-btm-api.c:2453:bitmain_soc_init: opt_bitmain_work_mode = 0
2021-02-23 02:45:57 driver-btm-api.c:2454:bitmain_soc_init: Miner compile time: Tue Jun 2 10:31:07 CST 2020 type: Antminer S17+
2021-02-23 02:45:57 driver-btm-api.c:2455:bitmain_soc_init: commit version: 1ca50a5 2020-06-01 18:51:22, build by: lol 2020-06-02 10:37:21
2021-02-23 02:45:57 driver-btm-api.c:2083:show_sn: len:16, 80009d0618c08854
2021-02-23 02:45:57 driver-btm-api.c:2461:bitmain_soc_init: show sn return 1
2021-02-23 02:45:57 driver-btm-api.c:2103:handle_sn_for_factory_mode: show sn return 1
2021-02-23 02:45:57 driver-btm-api.c:2141:handle_sn_for_factory_mode: read sn success, 80009d0618c08854
2021-02-23 02:45:57 fan.c:284:front_fan_power_on: Note: front fan is power on!
2021-02-23 02:45:57 fan.c:296:rear_fan_power_on: Note: rear fan is power on!
2021-02-23 02:45:57 driver-btm-api.c:1314:miner_device_init: Detect 256MB control board of XILINX
2021-02-23 02:45:57 driver-btm-api.c:1255:init_fan_parameter: fan_eft : 0 fan_pwm : 0
2021-02-23 02:46:03 driver-btm-api.c:1239:init_miner_version: miner ID : 80009d0618c08854
2021-02-23 02:46:03 driver-btm-api.c:1245:init_miner_version: FPGA Version = 0xB023
2021-02-23 02:46:08 driver-btm-api.c:837:get_product_id: product_id[0] = 0
2021-02-23 02:46:08 driver-btm-api.c:837:get_product_id: product_id[1] = 0
2021-02-23 02:46:08 driver-btm-api.c:837:get_product_id: product_id[2] = 0
2021-02-23 02:46:08 driver-btm-api.c:2234:update_conf_by_power_feedback: Power feedback is disabled
2021-02-23 02:46:08 driver-btm-api.c:2202:get_calibration_voltage: calibration voltage flag is error data.
2021-02-23 02:46:08 driver-btm-api.c:2268:update_conf_by_power_feedback: Note: no calibration voltage, default diff = 0
2021-02-23 02:46:08 frequency.c:1457:adjust_higer_max_vol_table: adjust_higer_max_vol_table, adjust_vol = 0
2021-02-23 02:46:08 thread.c:1363:create_read_nonce_reg_thread: create thread
2021-02-23 02:46:14 driver-btm-api.c:1239:init_miner_version: miner ID : 80009d0618c08854
2021-02-23 02:46:14 driver-btm-api.c:1245:init_miner_version: FPGA Version = 0xB023
2021-02-23 02:46:20 driver-btm-api.c:837:get_product_id: product_id[0] = 0
2021-02-23 02:46:20 driver-btm-api.c:837:get_product_id: product_id[1] = 0
2021-02-23 02:46:20 driver-btm-api.c:837:get_product_id: product_id[2] = 0
2021-02-23 02:46:20 driver-btm-api.c:792:_set_project_type: project:0
2021-02-23 02:46:20 driver-btm-api.c:813:_set_project_type: Project type: Antminer S17+
2021-02-23 02:46:20 driver-btm-api.c:824:dump_pcb_bom_version: Chain [0] PCB Version: 0x0100
2021-02-23 02:46:20 driver-btm-api.c:825:dump_pcb_bom_version: Chain [0] BOM Version: 0x0100
2021-02-23 02:46:20 driver-btm-api.c:824:dump_pcb_bom_version: Chain [1] PCB Version: 0x0100
2021-02-23 02:46:20 driver-btm-api.c:825:dump_pcb_bom_version: Chain [1] BOM Version: 0x0100
2021-02-23 02:46:20 driver-btm-api.c:824:dump_pcb_bom_version: Chain [2] PCB Version: 0x0100
2021-02-23 02:46:20 driver-btm-api.c:825:dump_pcb_bom_version: Chain [2] BOM Version: 0x0100
2021-02-23 02:46:20 driver-btm-api.c:2372:bitmain_board_init: Fan check passed.
2021-02-23 02:46:21 board.c:36:jump_and_app_check_restore_pic: chain[0] PIC jump to app
2021-02-23 02:46:23 board.c:40:jump_and_app_check_restore_pic: Check chain[0] PIC fw version=0x88
2021-02-23 02:46:24 board.c:36:jump_and_app_check_restore_pic: chain[1] PIC jump to app
2021-02-23 02:46:26 board.c:40:jump_and_app_check_restore_pic: Check chain[1] PIC fw version=0x88
2021-02-23 02:46:27 board.c:36:jump_and_app_check_restore_pic: chain[2] PIC jump to app
2021-02-23 02:46:29 board.c:40:jump_and_app_check_restore_pic: Check chain[2] PIC fw version=0x88
2021-02-23 02:46:29 thread.c:1358:create_pic_heart_beat_thread: create thread
2021-02-23 02:46:29 power_api.c:213:power_init: Power init:
2021-02-23 02:46:29 power_api.c:214:power_init: current_voltage_raw = 0
2021-02-23 02:46:29 power_api.c:215:power_init: highest_voltage_raw = 2100
2021-02-23 02:46:29 power_api.c:216:power_init: working_voltage_raw = 1950
2021-02-23 02:46:29 power_api.c:217:power_init: higher_voltage_raw = 2040
2021-02-23 02:46:29 power_api.c:218:power_init: check_asic_voltage_raw = 2100
2021-02-23 02:46:29 driver-btm-api.c:2382:bitmain_board_init: Enter 30s sleep to make sure power release finish.
2021-02-23 02:47:01 power_api.c:324:set_to_highest_voltage_by_steps: Set to voltage raw 2100, step by step.
2021-02-23 02:47:27 power_api.c:85:check_voltage_multi: retry time: 0
2021-02-23 02:47:28 power_api.c:40:_get_avg_voltage: chain = 0, voltage = 21.113811
2021-02-23 02:47:29 power_api.c:40:_get_avg_voltage: chain = 1, voltage = 20.963010
2021-02-23 02:47:30 power_api.c:40:_get_avg_voltage: chain = 2, voltage = 21.138107
2021-02-23 02:47:30 power_api.c:53:_get_avg_voltage: average_voltage = 21.071643
2021-02-23 02:47:30 power_api.c:71:check_voltage: target_vol = 21.00, actural_vol = 21.07, check voltage passed.
2021-02-23 02:47:30 uart.c:72:set_baud: set fpga_baud to 115200
2021-02-23 02:47:41 driver-btm-api.c:1134:check_asic_number_with_power_on: Chain[0]: find 65 asic, times 0
2021-02-23 02:47:52 driver-btm-api.c:1134:check_asic_number_with_power_on: Chain[1]: find 65 asic, times 0
2021-02-23 02:48:04 driver-btm-api.c:1134:check_asic_number_with_power_on: Chain[2]: find 1 asic, times 0
2021-02-23 02:48:15 driver-btm-api.c:1134:check_asic_number_with_power_on: Chain[2]: find 20 asic, times 1
2021-02-23 02:48:26 driver-btm-api.c:1134:check_asic_number_with_power_on: Chain[2]: find 1 asic, times 2
2021-02-23 02:48:26 power_api.c:380:modify_check_asic_voltage: check_asic_voltage_raw = 2100
chain 2, IO_DRIVE_STRENGTH_CONFIGURATION reg = 0x f1fffff
2021-02-23 02:48:36 driver-btm-api.c:1157:check_asic_number_with_power_on: Chain[2]: find 1 asic, times 3
2021-02-23 02:48:36 power_api.c:380:modify_check_asic_voltage: check_asic_voltage_raw = 2050
2021-02-23 02:48:36 power_api.c:364:set_to_check_asic_voltage_by_steps: Set to voltage raw 2050, step by step.
2021-02-23 02:48:39 power_api.c:85:check_voltage_multi: retry time: 0
2021-02-23 02:48:42 power_api.c:40:_get_avg_voltage: chain = 0, voltage = 20.553000
2021-02-23 02:48:43 power_api.c:40:_get_avg_voltage: chain = 1, voltage = 20.454081
2021-02-23 02:48:44 power_api.c:40:_get_avg_voltage: chain = 2, voltage = 20.601531
2021-02-23 02:48:44 power_api.c:53:_get_avg_voltage: average_voltage = 20.536204
2021-02-23 02:48:44 power_api.c:71:check_voltage: target_vol = 20.50, actural_vol = 20.54, check voltage passed.
chain 2, IO_DRIVE_STRENGTH_CONFIGURATION reg = 0x f1fffff
2021-02-23 02:48:53 driver-btm-api.c:1157:check_asic_number_with_power_on: Chain[2]: find 21 asic, times 4
2021-02-23 02:48:53 power_api.c:380:modify_check_asic_voltage: check_asic_voltage_raw = 2000
2021-02-23 02:48:53 power_api.c:364:set_to_check_asic_voltage_by_steps: Set to voltage raw 2000, step by step.
2021-02-23 02:48:56 power_api.c:85:check_voltage_multi: retry time: 0
2021-02-23 02:48:58 power_api.c:40:_get_avg_voltage: chain = 0, voltage = 20.093350
2021-02-23 02:48:59 power_api.c:40:_get_avg_voltage: chain = 1, voltage = 19.943950
2021-02-23 02:49:00 power_api.c:40:_get_avg_voltage: chain = 2, voltage = 20.091953
2021-02-23 02:49:00 power_api.c:53:_get_avg_voltage: average_voltage = 20.043084
2021-02-23 02:49:00 power_api.c:71:check_voltage: target_vol = 20.00, actural_vol = 20.04, check voltage passed.
chain 2, IO_DRIVE_STRENGTH_CONFIGURATION reg = 0x f1fffff
2021-02-23 02:49:09 driver-btm-api.c:1157:check_asic_number_with_power_on: Chain[2]: find 21 asic, times 5
2021-02-23 02:49:09 power_api.c:380:modify_check_asic_voltage: check_asic_voltage_raw = 2100
2021-02-23 02:49:09 power_api.c:364:set_to_check_asic_voltage_by_steps: Set to voltage raw 2100, step by step.
2021-02-23 02:49:14 power_api.c:85:check_voltage_multi: retry time: 0
2021-02-23 02:49:16 power_api.c:40:_get_avg_voltage: chain = 0, voltage = 21.089514
2021-02-23 02:49:17 power_api.c:40:_get_avg_voltage: chain = 1, voltage = 20.936306
2021-02-23 02:49:18 power_api.c:40:_get_avg_voltage: chain = 2, voltage = 21.113811
2021-02-23 02:49:18 power_api.c:53:_get_avg_voltage: average_voltage = 21.046544
2021-02-23 02:49:18 power_api.c:71:check_voltage: target_vol = 21.00, actural_vol = 21.05, check voltage passed.
2021-02-23 02:49:18 driver-btm-api.c:1193:check_asic_number: Chain 2 only find 21 asic, will power off hash board 2
2021-02-23 02:49:19 driver-btm-api.c:1195:check_asic_number: Chain 2 voltage: an0 = 2.796774, an2 2.803226, an6 2.525806.
2021-02-23 02:49:25 driver-hash-chip.c:266:set_uart_relay: set uart relay to 0x330003
2021-02-23 02:49:26 driver-btm-api.c:435:set_order_clock: chain[0]: set order clock, stragegy 3
2021-02-23 02:49:26 driver-btm-api.c:435:set_order_clock: chain[1]: set order clock, stragegy 3
2021-02-23 02:49:26 driver-hash-chip.c:502:set_clock_delay_control: core_data = 0x34
2021-02-23 02:49:26 driver-btm-api.c:1892:check_clock_counter: freq 50 clock_counter_limit 6
2021-02-23 02:49:26 voltage[0] = 1960
2021-02-23 02:49:26 voltage[1] = 1960
2021-02-23 02:49:26 power_api.c:226:set_working_voltage_raw: working_voltage_raw = 1960
2021-02-23 02:49:28 temperature.c:340:calibrate_temp_sensor_one_chain: chain 0 temp sensor NCT218
2021-02-23 02:49:29 temperature.c:340:calibrate_temp_sensor_one_chain: chain 1 temp sensor NCT218
2021-02-23 02:49:29 uart.c:72:set_baud: set fpga_baud to 12000000
2021-02-23 02:49:30 driver-btm-api.c:293:check_bringup_temp: Bring up temperature is 21
2021-02-23 02:49:30 thread.c:1378:create_check_miner_status_thread: create thread
2021-02-23 02:49:30 thread.c:1368:create_show_miner_status_thread: create thread
2021-02-23 02:49:30 thread.c:1348:create_temperature_monitor_thread: create thread
2021-02-23 02:49:30 frequency.c:514:check_bringup_temp_dec_freq: dec freq = 0 when bringup temp = 21 dec_freq_index=0
2021-02-23 02:49:30 freq_tuning.c:183:freq_tuning_get_max_freq: Max freq of tuning is 650
2021-02-23 02:49:30 driver-btm-api.c:1765:send_null_work: [DEBUG] Send null work.
2021-02-23 02:49:30 thread.c:1338:create_asic_status_monitor_thread: create thread
2021-02-23 02:49:30 frequency.c:1110:inc_freq_with_fixed_vco: chain = 255, freq = 540, is_higher_voltage = true
2021-02-23 02:50:54 power_api.c:352:set_to_voltage_by_steps: Set to voltage raw 2090, step by step.
2021-02-23 02:50:56 power_api.c:85:check_voltage_multi: retry time: 0
2021-02-23 02:50:58 power_api.c:40:_get_avg_voltage: chain = 0, voltage = 20.968031
2021-02-23 02:50:59 power_api.c:40:_get_avg_voltage: chain = 1, voltage = 20.817602
2021-02-23 02:50:59 power_api.c:53:_get_avg_voltage: average_voltage = 20.892816
2021-02-23 02:50:59 power_api.c:71:check_voltage: target_vol = 20.90, actural_vol = 20.89, check voltage passed.
2021-02-23 02:54:54 power_api.c:352:set_to_voltage_by_steps: Set to voltage raw 2080, step by step.
2021-02-23 02:54:56 power_api.c:85:check_voltage_multi: retry time: 0
2021-02-23 02:54:57 power_api.c:40:_get_avg_voltage: chain = 0, voltage = 20.846547
2021-02-23 02:54:58 power_api.c:40:_get_avg_voltage: chain = 1, voltage = 20.672194
2021-02-23 02:54:58 power_api.c:53:_get_avg_voltage: average_voltage = 20.759370
2021-02-23 02:54:58 power_api.c:71:check_voltage: target_vol = 20.80, actural_vol = 20.76, check voltage passed.
2021-02-23 02:54:58 frequency.c:1181:inc_asic_diff_freq_by_steps: chain = 0, start = 540, freq_step = 5
2021-02-23 02:55:05 frequency.c:1181:inc_asic_diff_freq_by_steps: chain = 1, start = 540, freq_step = 5
2021-02-23 02:55:12 driver-btm-api.c:765:set_timeout: freq = 590, percent = 90, hcn = 44236, timeout = 74
2021-02-23 02:55:12 power_api.c:310:set_to_working_voltage_by_steps: Set to voltage raw 1960, step by step.
2021-02-23 02:55:18 power_api.c:85:check_voltage_multi: retry time: 0
2021-02-23 02:55:19 power_api.c:40:_get_avg_voltage: chain = 0, voltage = 19.680307
2021-02-23 02:55:20 power_api.c:40:_get_avg_voltage: chain = 1, voltage = 19.508928
2021-02-23 02:55:20 power_api.c:53:_get_avg_voltage: average_voltage = 19.594618
2021-02-23 02:55:20 power_api.c:71:check_voltage: target_vol = 19.60, actural_vol = 19.59, check voltage passed.
2021-02-23 02:55:20 thread.c:1373:create_check_system_status_thread: create thread
2021-02-23 02:55:21 driver-btm-api.c:2618:bitmain_soc_init: Init done!
2021-02-23 02:55:21 driver-btm-api.c:222:set_miner_status: STATUS_INIT
2021-02-23 02:55:26 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 02:55:27 frequency.c:205:get_ideal_hash_rate_GH: ideal_hash_rate = 49061
2021-02-23 02:55:27 frequency.c:223:get_sale_hash_rate_GH: sale_hash_rate = 49000
2021-02-23 02:55:32 driver-btm-api.c:1496:dhash_chip_send_job: Version num 4.
2021-02-23 02:55:32 driver-btm-api.c:1644:dhash_chip_send_job: stime.tv_sec 1614048932, block_ntime 1614048918
2021-02-23 03:25:32 thread.c:259:calc_hashrate_avg: avg rate is 50125.76 in 30 mins
2021-02-23 03:25:32 temperature.c:516:temp_statistics_show: pcb temp 36~62 chip temp 57~79
2021-02-23 03:55:34 thread.c:259:calc_hashrate_avg: avg rate is 50362.03 in 30 mins
2021-02-23 03:55:34 temperature.c:516:temp_statistics_show: pcb temp 36~62 chip temp 55~79
2021-02-23 04:25:35 thread.c:259:calc_hashrate_avg: avg rate is 50083.30 in 30 mins
2021-02-23 04:25:35 temperature.c:516:temp_statistics_show: pcb temp 37~62 chip temp 56~79
2021-02-23 04:55:37 thread.c:259:calc_hashrate_avg: avg rate is 50052.50 in 30 mins
2021-02-23 04:55:37 temperature.c:516:temp_statistics_show: pcb temp 38~61 chip temp 58~79
2021-02-23 05:25:38 thread.c:259:calc_hashrate_avg: avg rate is 50182.76 in 30 mins
2021-02-23 05:25:38 temperature.c:516:temp_statistics_show: pcb temp 39~61 chip temp 57~80
2021-02-23 05:51:06 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 05:51:20 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 05:55:39 thread.c:259:calc_hashrate_avg: avg rate is 50245.42 in 30 mins
2021-02-23 05:55:39 temperature.c:516:temp_statistics_show: pcb temp 39~60 chip temp 58~80
2021-02-23 06:25:41 thread.c:259:calc_hashrate_avg: avg rate is 50108.67 in 30 mins
2021-02-23 06:25:41 temperature.c:516:temp_statistics_show: pcb temp 39~60 chip temp 58~79
2021-02-23 06:55:42 thread.c:259:calc_hashrate_avg: avg rate is 50033.88 in 30 mins
2021-02-23 06:55:42 temperature.c:516:temp_statistics_show: pcb temp 38~61 chip temp 57~79
2021-02-23 07:25:44 thread.c:259:calc_hashrate_avg: avg rate is 50081.20 in 30 mins
2021-02-23 07:25:44 temperature.c:516:temp_statistics_show: pcb temp 38~61 chip temp 57~79
2021-02-23 07:39:05 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 07:39:23 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 07:55:45 thread.c:259:calc_hashrate_avg: avg rate is 50016.19 in 30 mins
2021-02-23 07:55:45 temperature.c:516:temp_statistics_show: pcb temp 38~61 chip temp 57~80
2021-02-23 08:11:55 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 08:12:22 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 08:25:47 thread.c:259:calc_hashrate_avg: avg rate is 50084.86 in 30 mins
2021-02-23 08:25:47 temperature.c:516:temp_statistics_show: pcb temp 38~61 chip temp 57~79
2021-02-23 08:35:09 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 08:37:27 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 08:43:51 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 08:43:58 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 08:47:31 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 08:48:44 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 08:55:48 thread.c:259:calc_hashrate_avg: avg rate is 50097.34 in 30 mins
2021-02-23 08:55:48 temperature.c:516:temp_statistics_show: pcb temp 38~61 chip temp 57~80
2021-02-23 09:25:49 thread.c:259:calc_hashrate_avg: avg rate is 50324.18 in 30 mins
2021-02-23 09:25:49 temperature.c:516:temp_statistics_show: pcb temp 38~61 chip temp 57~79
2021-02-23 09:55:51 thread.c:259:calc_hashrate_avg: avg rate is 50130.65 in 30 mins
2021-02-23 09:55:51 temperature.c:516:temp_statistics_show: pcb temp 38~61 chip temp 56~79
2021-02-23 10:25:52 thread.c:259:calc_hashrate_avg: avg rate is 50126.02 in 30 mins
2021-02-23 10:25:52 temperature.c:516:temp_statistics_show: pcb temp 38~61 chip temp 57~79
2021-02-23 10:27:37 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 10:28:02 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 10:55:54 thread.c:259:calc_hashrate_avg: avg rate is 50277.17 in 30 mins
2021-02-23 10:55:54 temperature.c:516:temp_statistics_show: pcb temp 37~61 chip temp 57~79
2021-02-23 11:25:55 thread.c:259:calc_hashrate_avg: avg rate is 49762.36 in 30 mins
2021-02-23 11:25:55 temperature.c:516:temp_statistics_show: pcb temp 37~61 chip temp 56~80
2021-02-23 11:47:36 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 11:48:33 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 11:55:57 thread.c:259:calc_hashrate_avg: avg rate is 50007.94 in 30 mins
2021-02-23 11:55:57 temperature.c:516:temp_statistics_show: pcb temp 36~60 chip temp 55~80
2021-02-23 12:22:53 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 12:23:04 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 12:25:58 thread.c:259:calc_hashrate_avg: avg rate is 49856.32 in 30 mins
2021-02-23 12:25:58 temperature.c:516:temp_statistics_show: pcb temp 35~61 chip temp 55~80
2021-02-23 12:31:27 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 12:33:27 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 12:55:59 thread.c:259:calc_hashrate_avg: avg rate is 50510.38 in 30 mins
2021-02-23 12:55:59 temperature.c:516:temp_statistics_show: pcb temp 36~61 chip temp 54~80
2021-02-23 13:26:01 thread.c:259:calc_hashrate_avg: avg rate is 50289.99 in 30 mins
2021-02-23 13:26:01 temperature.c:516:temp_statistics_show: pcb temp 36~61 chip temp 55~79
2021-02-23 13:56:02 thread.c:259:calc_hashrate_avg: avg rate is 50030.83 in 30 mins
2021-02-23 13:56:02 temperature.c:516:temp_statistics_show: pcb temp 35~61 chip temp 53~80
2021-02-23 14:26:04 thread.c:259:calc_hashrate_avg: avg rate is 50020.15 in 30 mins
2021-02-23 14:26:04 temperature.c:516:temp_statistics_show: pcb temp 35~60 chip temp 54~79
2021-02-23 14:56:05 thread.c:259:calc_hashrate_avg: avg rate is 50002.76 in 30 mins
2021-02-23 14:56:05 temperature.c:516:temp_statistics_show: pcb temp 35~60 chip temp 54~79
2021-02-23 15:26:07 thread.c:259:calc_hashrate_avg: avg rate is 50057.39 in 30 mins
2021-02-23 15:26:07 temperature.c:516:temp_statistics_show: pcb temp 34~62 chip temp 53~80
2021-02-23 15:56:08 thread.c:259:calc_hashrate_avg: avg rate is 50094.29 in 30 mins
2021-02-23 15:56:08 temperature.c:516:temp_statistics_show: pcb temp 35~62 chip temp 54~79
2021-02-23 16:25:57 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 16:26:09 thread.c:259:calc_hashrate_avg: avg rate is 50346.16 in 30 mins
2021-02-23 16:26:09 temperature.c:516:temp_statistics_show: pcb temp 35~61 chip temp 55~79
2021-02-23 16:26:12 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 16:46:14 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 16:46:33 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 16:56:11 thread.c:259:calc_hashrate_avg: avg rate is 50187.42 in 30 mins
2021-02-23 16:56:11 temperature.c:516:temp_statistics_show: pcb temp 36~62 chip temp 56~81
2021-02-23 17:00:07 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 17:00:39 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 17:26:12 thread.c:259:calc_hashrate_avg: avg rate is 49856.32 in 30 mins
2021-02-23 17:26:12 temperature.c:516:temp_statistics_show: pcb temp 37~62 chip temp 58~80
2021-02-23 17:48:00 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 17:48:02 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 17:54:54 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 17:55:02 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 17:56:14 thread.c:259:calc_hashrate_avg: avg rate is 50166.06 in 30 mins
2021-02-23 17:56:14 temperature.c:516:temp_statistics_show: pcb temp 37~63 chip temp 58~79
2021-02-23 18:26:15 thread.c:259:calc_hashrate_avg: avg rate is 49773.34 in 30 mins
2021-02-23 18:26:15 temperature.c:516:temp_statistics_show: pcb temp 38~62 chip temp 59~80
2021-02-23 18:41:33 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 18:42:26 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 18:48:16 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 18:48:39 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 18:56:17 thread.c:259:calc_hashrate_avg: avg rate is 50367.52 in 30 mins
2021-02-23 18:56:17 temperature.c:516:temp_statistics_show: pcb temp 39~62 chip temp 59~79
2021-02-23 19:14:09 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 19:14:28 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 19:18:09 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 19:18:39 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 19:22:17 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 19:22:37 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 19:26:18 thread.c:259:calc_hashrate_avg: avg rate is 50068.66 in 30 mins
2021-02-23 19:26:18 temperature.c:516:temp_statistics_show: pcb temp 38~62 chip temp 59~79
2021-02-23 19:56:19 thread.c:259:calc_hashrate_avg: avg rate is 49985.96 in 30 mins
2021-02-23 19:56:19 temperature.c:516:temp_statistics_show: pcb temp 40~63 chip temp 60~80
2021-02-23 20:26:21 thread.c:259:calc_hashrate_avg: avg rate is 49957.88 in 30 mins
2021-02-23 20:26:21 temperature.c:516:temp_statistics_show: pcb temp 39~63 chip temp 60~80
2021-02-23 20:47:21 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 20:47:33 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 20:56:22 thread.c:259:calc_hashrate_avg: avg rate is 50105.88 in 30 mins
2021-02-23 20:56:22 temperature.c:516:temp_statistics_show: pcb temp 39~63 chip temp 60~80
2021-02-23 21:26:24 thread.c:259:calc_hashrate_avg: avg rate is 49979.85 in 30 mins
2021-02-23 21:26:24 temperature.c:516:temp_statistics_show: pcb temp 40~63 chip temp 60~80
2021-02-23 21:56:25 thread.c:259:calc_hashrate_avg: avg rate is 50171.17 in 30 mins
2021-02-23 21:56:25 temperature.c:516:temp_statistics_show: pcb temp 40~63 chip temp 60~80
2021-02-23 22:26:27 thread.c:259:calc_hashrate_avg: avg rate is 49879.73 in 30 mins
2021-02-23 22:26:27 temperature.c:516:temp_statistics_show: pcb temp 39~62 chip temp 60~80
2021-02-23 22:56:28 thread.c:259:calc_hashrate_avg: avg rate is 50082.08 in 30 mins
2021-02-23 22:56:28 temperature.c:516:temp_statistics_show: pcb temp 39~62 chip temp 59~79
2021-02-23 23:04:57 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 23:06:21 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 23:13:02 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-23 23:15:29 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-23 23:26:30 thread.c:259:calc_hashrate_avg: avg rate is 50405.98 in 30 mins
2021-02-23 23:26:30 temperature.c:516:temp_statistics_show: pcb temp 39~62 chip temp 59~80
2021-02-23 23:56:31 thread.c:259:calc_hashrate_avg: avg rate is 50257.20 in 30 mins
2021-02-23 23:56:31 temperature.c:516:temp_statistics_show: pcb temp 40~63 chip temp 59~80
2021-02-24 00:05:12 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-24 00:05:18 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-24 00:26:32 thread.c:259:calc_hashrate_avg: avg rate is 50260.07 in 30 mins
2021-02-24 00:26:32 temperature.c:516:temp_statistics_show: pcb temp 39~62 chip temp 59~80
2021-02-24 00:44:26 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-24 00:45:23 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-24 00:56:34 thread.c:259:calc_hashrate_avg: avg rate is 50273.51 in 30 mins
2021-02-24 00:56:34 temperature.c:516:temp_statistics_show: pcb temp 38~63 chip temp 59~79
2021-02-24 01:26:35 thread.c:259:calc_hashrate_avg: avg rate is 50271.23 in 30 mins
2021-02-24 01:26:35 temperature.c:516:temp_statistics_show: pcb temp 38~62 chip temp 58~80
2021-02-24 01:40:18 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-24 01:40:37 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-24 01:55:06 driver-btm-api.c:222:set_miner_status: WARN_NET_LOST
2021-02-24 01:56:02 driver-btm-api.c:222:set_miner_status: STATUS_OKAY
2021-02-24 01:56:37 thread.c:259:calc_hashrate_avg: avg rate is 50228.33 in 30 mins
2021-02-24 01:56:37 temperature.c:516:temp_statistics_show: pcb temp 37~62 chip temp 57~79

Thank you.