Antminer S9 Fatal Error: some Fan lost or Fan speed low! (on ghost? fan)

Hey guys,
so after about a year of mining my antminer broke. It doesn't show Hardware Version and BMminer Version. I googled and checked log, sure enough it reads:

Code:

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 3.14.0-xilinx-ge8a2f71-dirty (lzq@armdev2) (gcc version 4.8.3 20140320 (prerelease) (Sourcery CodeBench Lite 2014.05-23) ) #82 SMP PREEMPT Tue May 16 19:49:53 CST 2017
[    0.000000] CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine model: Xilinx Zynq
[    0.000000] cma: CMA: reserved 128 MiB at 27800000
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] On node 0 totalpages: 258048
[    0.000000] free_area_init_node: node 0, pgdat c0740a40, node_mem_map e6fd8000
[    0.000000]   Normal zone: 1520 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 194560 pages, LIFO batch:31
[    0.000000]   HighMem zone: 496 pages used for memmap
[    0.000000]   HighMem zone: 63488 pages, LIFO batch:15
[    0.000000] PERCPU: Embedded 8 pages/cpu @e6fc0000 s9088 r8192 d15488 u32768
[    0.000000] pcpu-alloc: s9088 r8192 d15488 u32768 alloc=8*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 256528
[    0.000000] Kernel command line: noinitrd mem=1008M console=ttyPS0,115200 root=ubi0:rootfs ubi.mtd=1 rootfstype=ubifs rw rootwait
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Memory: 884148K/1032192K available (5032K kernel code, 283K rwdata, 1916K rodata, 204K init, 258K bss, 148044K reserved, 253952K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     vmalloc : 0xf0000000 - 0xff000000   ( 240 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xef800000   ( 760 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0008000 - 0xc06d1374   (6949 kB)
[    0.000000]       .init : 0xc06d2000 - 0xc0705380   ( 205 kB)
[    0.000000]       .data : 0xc0706000 - 0xc074cf78   ( 284 kB)
[    0.000000]        .bss : 0xc074cf84 - 0xc078d9fc   ( 259 kB)
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000] 	Dump stacks of tasks blocking RCU-preempt GP.
[    0.000000] 	RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] ps7-slcr mapped to f0004000
[    0.000000] zynq_clock_init: clkc starts at f0004100
[    0.000000] Zynq clock init
[    0.000015] sched_clock: 64 bits at 333MHz, resolution 3ns, wraps every 3298534883328ns
[    0.000305] ps7-ttc #0 at f0006000, irq=43
[    0.000614] Console: colour dummy device 80x30
[    0.000653] Calibrating delay loop... 1325.46 BogoMIPS (lpj=6627328)
[    0.040207] pid_max: default: 32768 minimum: 301
[    0.040432] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.040454] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.042584] CPU: Testing write buffer coherency: ok
[    0.042928] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.042988] Setting up static identity map for 0x4c4b00 - 0x4c4b58
[    0.043216] L310 cache controller enabled
[    0.043235] l2x0: 8 ways, CACHE_ID 0x410000c8, AUX_CTRL 0x72760000, Cache size: 512 kB
[    0.121031] CPU1: Booted secondary processor
[    0.210227] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.210359] Brought up 2 CPUs
[    0.210379] SMP: Total of 2 processors activated.
[    0.210387] CPU: All CPU(s) started in SVC mode.
[    0.211041] devtmpfs: initialized
[    0.213452] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[    0.214662] regulator-dummy: no parameters
[    0.222348] NET: Registered protocol family 16
[    0.224646] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.226921] cpuidle: using governor ladder
[    0.226934] cpuidle: using governor menu
[    0.234378] syscon f8000000.ps7-slcr: regmap [mem 0xf8000000-0xf8000fff] registered
[    0.235895] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[    0.235909] hw-breakpoint: maximum watchpoint size is 4 bytes.
[    0.236024] zynq-ocm f800c000.ps7-ocmc: ZYNQ OCM pool: 256 KiB @ 0xf0080000
[    0.257724] bio: create slab <bio-0> at 0
[    0.259154] vgaarb: loaded
[    0.259866] SCSI subsystem initialized
[    0.260845] usbcore: registered new interface driver usbfs
[    0.261015] usbcore: registered new interface driver hub
[    0.261373] usbcore: registered new device driver usb
[    0.261893] media: Linux media interface: v0.10
[    0.262049] Linux video capture interface: v2.00
[    0.262286] pps_core: LinuxPPS API ver. 1 registered
[    0.262298] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.262419] PTP clock support registered
[    0.262775] EDAC MC: Ver: 3.0.0
[    0.263814] Advanced Linux Sound Architecture Driver Initialized.
[    0.266658] DMA-API: preallocated 4096 debug entries
[    0.266672] DMA-API: debugging enabled by kernel config
[    0.266750] Switched to clocksource arm_global_timer
[    0.286864] NET: Registered protocol family 2
[    0.287562] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[    0.287659] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[    0.287817] TCP: Hash tables configured (established 8192 bind 8192)
[    0.287878] TCP: reno registered
[    0.287898] UDP hash table entries: 512 (order: 2, 16384 bytes)
[    0.287947] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[    0.288218] NET: Registered protocol family 1
[    0.288541] RPC: Registered named UNIX socket transport module.
[    0.288554] RPC: Registered udp transport module.
[    0.288562] RPC: Registered tcp transport module.
[    0.288571] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.288583] PCI: CLS 0 bytes, default 64
[    0.289023] hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available
[    0.291039] futex hash table entries: 512 (order: 3, 32768 bytes)
[    0.292416] bounce pool size: 64 pages
[    0.293319] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[    0.293512] msgmni has been set to 1486
[    0.294288] io scheduler noop registered
[    0.294301] io scheduler deadline registered
[    0.294338] io scheduler cfq registered (default)
[    0.303624] dma-pl330 f8003000.ps7-dma: Loaded driver for PL330 DMAC-2364208
[    0.303645] dma-pl330 f8003000.ps7-dma: 	DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Events-16
[    0.425820] e0001000.serial: ttyPS0 at MMIO 0xe0001000 (irq = 82, base_baud = 3124999) is a xuartps
[    0.998043] console [ttyPS0] enabled
[    1.002308] xdevcfg f8007000.ps7-dev-cfg: ioremap 0xf8007000 to f0068000
[    1.009956] [drm] Initialized drm 1.1.0 20060810
[    1.027055] brd: module loaded
[    1.036382] loop: module loaded
[    1.045821] e1000e: Intel(R) PRO/1000 Network Driver - 2.3.2-k
[    1.051807] e1000e: Copyright(c) 1999 - 2013 Intel Corporation.
[    1.059734] libphy: XEMACPS mii bus: probed
[    1.064106] ------------- phy_id = 0x3625e62
[    1.069066] xemacps e000b000.ps7-ethernet: pdev->id -1, baseaddr 0xe000b000, irq 54
[    1.077698] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.084316] ehci-pci: EHCI PCI platform driver
[    1.091607] zynq-dr e0002000.ps7-usb: Unable to init USB phy, missing?
[    1.098447] usbcore: registered new interface driver usb-storage
[    1.105307] mousedev: PS/2 mouse device common for all mice
[    1.111436] i2c /dev entries driver
[    1.118424] zynq-edac f8006000.ps7-ddrc: ecc not enabled
[    1.123905] cpufreq_cpu0: failed to get cpu0 regulator: -19
[    1.129840] Xilinx Zynq CpuIdle Driver started
[    1.134678] sdhci: Secure Digital Host Controller Interface driver
[    1.140833] sdhci: Copyright(c) Pierre Ossman
[    1.145115] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.151947] mmc0: no vqmmc regulator found
[    1.155960] mmc0: no vmmc regulator found
[    1.196766] mmc0: SDHCI controller on e0100000.ps7-sdio [e0100000.ps7-sdio] using ADMA
[    1.205462] usbcore: registered new interface driver usbhid
[    1.210976] usbhid: USB HID core driver
[    1.215686] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xda
[    1.221990] nand: Micron MT29F2G08ABAEAWP
[    1.225955] nand: 256MiB, SLC, page size: 2048, OOB size: 64
[    1.231912] Bad block table found at page 131008, version 0x01
[    1.238148] Bad block table found at page 130944, version 0x01
[    1.244198] 3 ofpart partitions found on MTD device pl353-nand
[    1.249982] Creating 3 MTD partitions on "pl353-nand":
[    1.255071] 0x000000000000-0x000002000000 : "BOOT.bin-env-dts-kernel"
[    1.263128] 0x000002000000-0x00000b000000 : "angstram-rootfs"
[    1.270445] 0x00000b000000-0x000010000000 : "upgrade-rootfs"
[    1.279394] TCP: cubic registered
[    1.282628] NET: Registered protocol family 17
[    1.287342] Registering SWP/SWPB emulation handler
[    1.293259] regulator-dummy: disabling
[    1.297630] UBI: attaching mtd1 to ubi0
[    1.824010] UBI: scanning is finished
[    1.835687] UBI: attached mtd1 (name "angstram-rootfs", size 144 MiB) to ubi0
[    1.842766] UBI: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
[    1.849527] UBI: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
[    1.856191] UBI: VID header offset: 2048 (aligned 2048), data offset: 4096
[    1.863069] UBI: good PEBs: 1152, bad PEBs: 0, corrupted PEBs: 0
[    1.869050] UBI: user volume: 1, internal volumes: 1, max. volumes count: 128
[    1.876157] UBI: max/mean erase counter: 2/0, WL threshold: 4096, image sequence number: 1134783803
[    1.885200] UBI: available PEBs: 0, total reserved PEBs: 1152, PEBs reserved for bad PEB handling: 40
[    1.894417] UBI: background thread "ubi_bgt0d" started, PID 1080
[    1.894422] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[    1.898394] ALSA device list:
[    1.898398]   No soundcards found.
[    1.914774] UBIFS: background thread "ubifs_bgt0_0" started, PID 1082
[    1.943751] UBIFS: recovery needed
[    2.043647] UBIFS: recovery completed
[    2.047331] UBIFS: mounted UBI device 0, volume 0, name "rootfs"
[    2.053252] UBIFS: LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[    2.062385] UBIFS: FS size: 128626688 bytes (122 MiB, 1013 LEBs), journal size 9023488 bytes (8 MiB, 72 LEBs)
[    2.072271] UBIFS: reserved for root: 0 bytes (0 KiB)
[    2.077311] UBIFS: media format: w4/r0 (latest is w4/r0), UUID B079DD56-06BB-4E31-8F5E-A6604F480DB2, small LPT model
[    2.088603] VFS: Mounted root (ubifs filesystem) on device 0:11.
[    2.096010] devtmpfs: mounted
[    2.099137] Freeing unused kernel memory: 204K (c06d2000 - c0705000)
[    2.946109] random: dd urandom read with 0 bits of entropy available
[    3.336787] 
[    3.336787] bcm54xx_config_init
[    3.946785] 
[    3.946785] bcm54xx_config_init
[    7.947625] xemacps e000b000.ps7-ethernet: Set clk to 124999998 Hz
[    7.953732] xemacps e000b000.ps7-ethernet: link up (1000/FULL)
[   22.621815] In axi fpga driver!
[   22.624886] request_mem_region OK!
[   22.628309] AXI fpga dev virtual address is 0xf01fe000
[   22.633383] *base_vir_addr = 0x8c510
[   22.648866] In fpga mem driver!
[   22.651933] request_mem_region OK!
[   22.655500] fpga mem virtual address is 0xf3000000
[   23.456789] 
[   23.456789] bcm54xx_config_init
[   24.086809] 
[   24.086809] bcm54xx_config_init
[   29.087627] xemacps e000b000.ps7-ethernet: Set clk to 124999998 Hz
[   29.093733] xemacps e000b000.ps7-ethernet: link up (1000/FULL)
This is XILINX board. Totalram:       1039794176
Detect 1GB control board of XILINX
DETECT HW version=0008c510
miner ID : 8174cc2e4b590854
Miner Type = S9
AsicType = 1387
real AsicNum = 63
use critical mode to search freq...
get PLUG ON=0x000000e0
Find hashboard on Chain[5]
Find hashboard on Chain[6]
Find hashboard on Chain[7]
set_reset_allhashboard = 0x0000ffff
Check chain[5] PIC fw version=0x03
Check chain[6] PIC fw version=0x03
Check chain[7] PIC fw version=0x03
chain[5]: [63:22] [63:5] [63:24] [63:25] [63:81] [63:7] [63:255] [63:255]
has freq in PIC, will disable freq setting.
chain[5] has freq in PIC and will jump over...
Chain[5] has core num in PIC
Chain[5] ASIC[2] has core num=7
Chain[5] ASIC[14] has core num=1
Chain[5] ASIC[17] has core num=1
Chain[5] ASIC[29] has core num=1
Chain[5] ASIC[50] has core num=1
Chain[5] ASIC[56] has core num=1
Chain[5] ASIC[58] has core num=1
Check chain[5] PIC fw version=0x03
chain[6]: [63:22] [63:5] [63:24] [63:25] [63:40] [63:81] [63:255] [63:255]
has freq in PIC, will disable freq setting.
chain[6] has freq in PIC and will jump over...
Chain[6] has core num in PIC
Chain[6] ASIC[3] has core num=1
Chain[6] ASIC[6] has core num=1
Chain[6] ASIC[16] has core num=2
Chain[6] ASIC[39] has core num=1
Chain[6] ASIC[43] has core num=7
Chain[6] ASIC[55] has core num=1
Chain[6] ASIC[59] has core num=2
Chain[6] ASIC[62] has core num=1
Check chain[6] PIC fw version=0x03
chain[7]: [63:22] [63:5] [63:24] [63:25] [63:19] [63:80] [63:255] [63:255]
has freq in PIC, will disable freq setting.
chain[7] has freq in PIC and will jump over...
Chain[7] has core num in PIC
Chain[7] ASIC[10] has core num=1
Chain[7] ASIC[17] has core num=11
Chain[7] ASIC[22] has core num=1
Chain[7] ASIC[25] has core num=1
Chain[7] ASIC[28] has core num=1
Chain[7] ASIC[45] has core num=12
Chain[7] ASIC[53] has core num=1
Chain[7] ASIC[56] has core num=9
Chain[7] ASIC[57] has core num=1
Chain[7] ASIC[61] has core num=3
Check chain[7] PIC fw version=0x03
get PIC voltage=74 on chain[5], value=900
get PIC voltage=74 on chain[6], value=900
get PIC voltage=74 on chain[7], value=900
set_reset_allhashboard = 0x00000000
chain[5] temp offset record: 62,-4,32,-5,0,0,0,0
chain[5] temp chip I2C addr=0x98
chain[6] temp offset record: 62,-4,32,-6,0,0,0,0
chain[6] temp chip I2C addr=0x98
chain[7] temp offset record: 62,-4,32,-6,0,0,0,0
chain[7] temp chip I2C addr=0x98
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
CRC error counter=0
set command mode to VIL

--- check asic number
After Get ASIC NUM CRC error counter=0
set_baud=0
The min freq=700
set real timeout 52, need sleep=379392
After TEST CRC error counter=0
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
search freq for 1 times, completed chain = 3, total chain num = 3 
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
restart Miner chance num=2
waiting for receive_func to exit!
waiting for pic heart to exit!
bmminer not found= 1448 root       0:00 grep bmminer

bmminer not found, restart bmminer ...
This is user mode for mining
Detect 1GB control board of XILINX
Miner Type = S9
Miner compile time: Fri Nov 17 17:57:49 CST 2017 type: Antminer S9set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
set_reset_allhashboard = 0x0000ffff
miner ID : 8174cc2e4b590854
set_reset_allhashboard = 0x0000ffff
Checking fans!get fan[2] speed=3240
get fan[2] speed=3240
get fan[2] speed=3240
get fan[2] speed=3240
get fan[3] speed=840
get fan[2] speed=3240
get fan[3] speed=840
get fan[2] speed=3240
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3240
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3240
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3240
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3240
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3240
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3240
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3240
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3240
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9240
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
get fan[2] speed=3480
get fan[3] speed=840
get fan[5] speed=9120
Fatal Error: some Fan lost or Fan speed low!

I know antminer won't boot if fan's speed ≤3000... but why there are 3 fans in this log? My best assumption is that control board is busted or short-circuitet.
But if I change fan's connectors the log looks like this:

Code:

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 3.14.0-xilinx-ge8a2f71-dirty (lzq@armdev2) (gcc version 4.8.3 20140320 (prerelease) (Sourcery CodeBench Lite 2014.05-23) ) #82 SMP PREEMPT Tue May 16 19:49:53 CST 2017
[    0.000000] CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine model: Xilinx Zynq
[    0.000000] cma: CMA: reserved 128 MiB at 27800000
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] On node 0 totalpages: 258048
[    0.000000] free_area_init_node: node 0, pgdat c0740a40, node_mem_map e6fd8000
[    0.000000]   Normal zone: 1520 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 194560 pages, LIFO batch:31
[    0.000000]   HighMem zone: 496 pages used for memmap
[    0.000000]   HighMem zone: 63488 pages, LIFO batch:15
[    0.000000] PERCPU: Embedded 8 pages/cpu @e6fc0000 s9088 r8192 d15488 u32768
[    0.000000] pcpu-alloc: s9088 r8192 d15488 u32768 alloc=8*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 256528
[    0.000000] Kernel command line: noinitrd mem=1008M console=ttyPS0,115200 root=ubi0:rootfs ubi.mtd=1 rootfstype=ubifs rw rootwait
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Memory: 884148K/1032192K available (5032K kernel code, 283K rwdata, 1916K rodata, 204K init, 258K bss, 148044K reserved, 253952K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     vmalloc : 0xf0000000 - 0xff000000   ( 240 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xef800000   ( 760 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0008000 - 0xc06d1374   (6949 kB)
[    0.000000]       .init : 0xc06d2000 - 0xc0705380   ( 205 kB)
[    0.000000]       .data : 0xc0706000 - 0xc074cf78   ( 284 kB)
[    0.000000]        .bss : 0xc074cf84 - 0xc078d9fc   ( 259 kB)
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000] 	Dump stacks of tasks blocking RCU-preempt GP.
[    0.000000] 	RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] ps7-slcr mapped to f0004000
[    0.000000] zynq_clock_init: clkc starts at f0004100
[    0.000000] Zynq clock init
[    0.000015] sched_clock: 64 bits at 333MHz, resolution 3ns, wraps every 3298534883328ns
[    0.000306] ps7-ttc #0 at f0006000, irq=43
[    0.000614] Console: colour dummy device 80x30
[    0.000652] Calibrating delay loop... 1332.01 BogoMIPS (lpj=6660096)
[    0.090254] pid_max: default: 32768 minimum: 301
[    0.090475] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.090498] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.092620] CPU: Testing write buffer coherency: ok
[    0.092966] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.093026] Setting up static identity map for 0x4c4b00 - 0x4c4b58
[    0.093252] L310 cache controller enabled
[    0.093271] l2x0: 8 ways, CACHE_ID 0x410000c8, AUX_CTRL 0x72760000, Cache size: 512 kB
[    0.171039] CPU1: Booted secondary processor
[    0.260229] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.260360] Brought up 2 CPUs
[    0.260379] SMP: Total of 2 processors activated.
[    0.260387] CPU: All CPU(s) started in SVC mode.
[    0.261037] devtmpfs: initialized
[    0.263444] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[    0.264647] regulator-dummy: no parameters
[    0.272346] NET: Registered protocol family 16
[    0.274537] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.276816] cpuidle: using governor ladder
[    0.276830] cpuidle: using governor menu
[    0.284278] syscon f8000000.ps7-slcr: regmap [mem 0xf8000000-0xf8000fff] registered
[    0.285795] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[    0.285809] hw-breakpoint: maximum watchpoint size is 4 bytes.
[    0.285923] zynq-ocm f800c000.ps7-ocmc: ZYNQ OCM pool: 256 KiB @ 0xf0080000
[    0.307400] bio: create slab <bio-0> at 0
[    0.308800] vgaarb: loaded
[    0.309530] SCSI subsystem initialized
[    0.310754] usbcore: registered new interface driver usbfs
[    0.310930] usbcore: registered new interface driver hub
[    0.311882] usbcore: registered new device driver usb
[    0.312441] media: Linux media interface: v0.10
[    0.312599] Linux video capture interface: v2.00
[    0.312837] pps_core: LinuxPPS API ver. 1 registered
[    0.312849] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.312978] PTP clock support registered
[    0.313329] EDAC MC: Ver: 3.0.0
[    0.314371] Advanced Linux Sound Architecture Driver Initialized.
[    0.316749] DMA-API: preallocated 4096 debug entries
[    0.316764] DMA-API: debugging enabled by kernel config
[    0.316839] Switched to clocksource arm_global_timer
[    0.336609] NET: Registered protocol family 2
[    0.337322] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[    0.337421] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[    0.337580] TCP: Hash tables configured (established 8192 bind 8192)
[    0.337641] TCP: reno registered
[    0.337660] UDP hash table entries: 512 (order: 2, 16384 bytes)
[    0.337710] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[    0.337977] NET: Registered protocol family 1
[    0.338329] RPC: Registered named UNIX socket transport module.
[    0.338341] RPC: Registered udp transport module.
[    0.338350] RPC: Registered tcp transport module.
[    0.338359] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.338372] PCI: CLS 0 bytes, default 64
[    0.338817] hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available
[    0.340844] futex hash table entries: 512 (order: 3, 32768 bytes)
[    0.342228] bounce pool size: 64 pages
[    0.343109] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[    0.343309] msgmni has been set to 1486
[    0.344100] io scheduler noop registered
[    0.344114] io scheduler deadline registered
[    0.344155] io scheduler cfq registered (default)
[    0.352103] dma-pl330 f8003000.ps7-dma: Loaded driver for PL330 DMAC-2364208
[    0.352124] dma-pl330 f8003000.ps7-dma: 	DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Events-16
[    0.475719] e0001000.serial: ttyPS0 at MMIO 0xe0001000 (irq = 82, base_baud = 3124999) is a xuartps
[    1.048509] console [ttyPS0] enabled
[    1.052779] xdevcfg f8007000.ps7-dev-cfg: ioremap 0xf8007000 to f0068000
[    1.060430] [drm] Initialized drm 1.1.0 20060810
[    1.077363] brd: module loaded
[    1.086697] loop: module loaded
[    1.096136] e1000e: Intel(R) PRO/1000 Network Driver - 2.3.2-k
[    1.101916] e1000e: Copyright(c) 1999 - 2013 Intel Corporation.
[    1.109836] libphy: XEMACPS mii bus: probed
[    1.114204] ------------- phy_id = 0x3625e62
[    1.119156] xemacps e000b000.ps7-ethernet: pdev->id -1, baseaddr 0xe000b000, irq 54
[    1.127972] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.134593] ehci-pci: EHCI PCI platform driver
[    1.141824] zynq-dr e0002000.ps7-usb: Unable to init USB phy, missing?
[    1.148646] usbcore: registered new interface driver usb-storage
[    1.155520] mousedev: PS/2 mouse device common for all mice
[    1.161680] i2c /dev entries driver
[    1.168640] zynq-edac f8006000.ps7-ddrc: ecc not enabled
[    1.174131] cpufreq_cpu0: failed to get cpu0 regulator: -19
[    1.180083] Xilinx Zynq CpuIdle Driver started
[    1.184920] sdhci: Secure Digital Host Controller Interface driver
[    1.191041] sdhci: Copyright(c) Pierre Ossman
[    1.195352] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.202232] mmc0: no vqmmc regulator found
[    1.206249] mmc0: no vmmc regulator found
[    1.246867] mmc0: SDHCI controller on e0100000.ps7-sdio [e0100000.ps7-sdio] using ADMA
[    1.255565] usbcore: registered new interface driver usbhid
[    1.261077] usbhid: USB HID core driver
[    1.265803] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xda
[    1.272104] nand: Micron MT29F2G08ABAEAWP
[    1.276063] nand: 256MiB, SLC, page size: 2048, OOB size: 64
[    1.282012] Bad block table found at page 131008, version 0x01
[    1.288239] Bad block table found at page 130944, version 0x01
[    1.294290] 3 ofpart partitions found on MTD device pl353-nand
[    1.300072] Creating 3 MTD partitions on "pl353-nand":
[    1.305161] 0x000000000000-0x000002000000 : "BOOT.bin-env-dts-kernel"
[    1.313207] 0x000002000000-0x00000b000000 : "angstram-rootfs"
[    1.320543] 0x00000b000000-0x000010000000 : "upgrade-rootfs"
[    1.329501] TCP: cubic registered
[    1.332735] NET: Registered protocol family 17
[    1.337449] Registering SWP/SWPB emulation handler
[    1.343397] regulator-dummy: disabling
[    1.347747] UBI: attaching mtd1 to ubi0
[    1.874232] UBI: scanning is finished
[    1.885849] UBI: attached mtd1 (name "angstram-rootfs", size 144 MiB) to ubi0
[    1.892933] UBI: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
[    1.899695] UBI: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
[    1.906359] UBI: VID header offset: 2048 (aligned 2048), data offset: 4096
[    1.913237] UBI: good PEBs: 1152, bad PEBs: 0, corrupted PEBs: 0
[    1.919217] UBI: user volume: 1, internal volumes: 1, max. volumes count: 128
[    1.926325] UBI: max/mean erase counter: 2/0, WL threshold: 4096, image sequence number: 1134783803
[    1.935368] UBI: available PEBs: 0, total reserved PEBs: 1152, PEBs reserved for bad PEB handling: 40
[    1.944584] UBI: background thread "ubi_bgt0d" started, PID 1080
[    1.944590] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[    1.948552] ALSA device list:
[    1.948555]   No soundcards found.
[    1.964936] UBIFS: background thread "ubifs_bgt0_0" started, PID 1082
[    1.993890] UBIFS: recovery needed
[    2.061456] UBIFS: recovery completed
[    2.065125] UBIFS: mounted UBI device 0, volume 0, name "rootfs"
[    2.071071] UBIFS: LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[    2.080175] UBIFS: FS size: 128626688 bytes (122 MiB, 1013 LEBs), journal size 9023488 bytes (8 MiB, 72 LEBs)
[    2.090065] UBIFS: reserved for root: 0 bytes (0 KiB)
[    2.095094] UBIFS: media format: w4/r0 (latest is w4/r0), UUID B079DD56-06BB-4E31-8F5E-A6604F480DB2, small LPT model
[    2.106388] VFS: Mounted root (ubifs filesystem) on device 0:11.
[    2.113807] devtmpfs: mounted
[    2.116942] Freeing unused kernel memory: 204K (c06d2000 - c0705000)
[    2.957738] random: dd urandom read with 0 bits of entropy available
[    3.356864] 
[    3.356864] bcm54xx_config_init
[    3.966872] 
[    3.966872] bcm54xx_config_init
[    7.967716] xemacps e000b000.ps7-ethernet: Set clk to 124999998 Hz
[    7.973821] xemacps e000b000.ps7-ethernet: link up (1000/FULL)
[   22.596717] In axi fpga driver!
[   22.599823] request_mem_region OK!
[   22.603179] AXI fpga dev virtual address is 0xf01fe000
[   22.608329] *base_vir_addr = 0x8c510
[   22.624266] In fpga mem driver!
[   22.627370] request_mem_region OK!
[   22.630907] fpga mem virtual address is 0xf3000000
[   23.416855] 
[   23.416855] bcm54xx_config_init
[   24.046861] 
[   24.046861] bcm54xx_config_init
[   28.047845] xemacps e000b000.ps7-ethernet: Set clk to 124999998 Hz
[   28.053952] xemacps e000b000.ps7-ethernet: link up (1000/FULL)
This is XILINX board. Totalram:       1039794176
Detect 1GB control board of XILINX
DETECT HW version=0008c510
miner ID : 8174cc2e4b590854
Miner Type = S9
AsicType = 1387
real AsicNum = 63
use critical mode to search freq...
get PLUG ON=0x000000e0
Find hashboard on Chain[5]
Find hashboard on Chain[6]
Find hashboard on Chain[7]
set_reset_allhashboard = 0x0000ffff
Check chain[5] PIC fw version=0x03
Check chain[6] PIC fw version=0x03
Check chain[7] PIC fw version=0x03
chain[5]: [63:22] [63:5] [63:24] [63:25] [63:81] [63:7] [63:255] [63:255]
has freq in PIC, will disable freq setting.
chain[5] has freq in PIC and will jump over...
Chain[5] has core num in PIC
Chain[5] ASIC[2] has core num=7
Chain[5] ASIC[14] has core num=1
Chain[5] ASIC[17] has core num=1
Chain[5] ASIC[29] has core num=1
Chain[5] ASIC[50] has core num=1
Chain[5] ASIC[56] has core num=1
Chain[5] ASIC[58] has core num=1
Check chain[5] PIC fw version=0x03
chain[6]: [63:22] [63:5] [63:24] [63:25] [63:40] [63:81] [63:255] [63:255]
has freq in PIC, will disable freq setting.
chain[6] has freq in PIC and will jump over...
Chain[6] has core num in PIC
Chain[6] ASIC[3] has core num=1
Chain[6] ASIC[6] has core num=1
Chain[6] ASIC[16] has core num=2
Chain[6] ASIC[39] has core num=1
Chain[6] ASIC[43] has core num=7
Chain[6] ASIC[55] has core num=1
Chain[6] ASIC[59] has core num=2
Chain[6] ASIC[62] has core num=1
Check chain[6] PIC fw version=0x03
chain[7]: [63:22] [63:5] [63:24] [63:25] [63:19] [63:80] [63:255] [63:255]
has freq in PIC, will disable freq setting.
chain[7] has freq in PIC and will jump over...
Chain[7] has core num in PIC
Chain[7] ASIC[10] has core num=1
Chain[7] ASIC[17] has core num=11
Chain[7] ASIC[22] has core num=1
Chain[7] ASIC[25] has core num=1
Chain[7] ASIC[28] has core num=1
Chain[7] ASIC[45] has core num=12
Chain[7] ASIC[53] has core num=1
Chain[7] ASIC[56] has core num=9
Chain[7] ASIC[57] has core num=1
Chain[7] ASIC[61] has core num=3
Check chain[7] PIC fw version=0x03
get PIC voltage=74 on chain[5], value=900
get PIC voltage=74 on chain[6], value=900
get PIC voltage=74 on chain[7], value=900
set_reset_allhashboard = 0x00000000
chain[5] temp offset record: 62,-4,32,-5,0,0,0,0
chain[5] temp chip I2C addr=0x98
chain[6] temp offset record: 62,-4,32,-6,0,0,0,0
chain[6] temp chip I2C addr=0x98
chain[7] temp offset record: 62,-4,32,-6,0,0,0,0
chain[7] temp chip I2C addr=0x98
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
CRC error counter=0
set command mode to VIL

--- check asic number
After Get ASIC NUM CRC error counter=0
set_baud=0
The min freq=700
set real timeout 52, need sleep=379392
After TEST CRC error counter=0
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
search freq for 1 times, completed chain = 3, total chain num = 3 
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
restart Miner chance num=2
waiting for receive_func to exit!
waiting for pic heart to exit!
bmminer not found= 1376 root       0:00 grep bmminer

bmminer not found, restart bmminer ...
This is user mode for mining
Detect 1GB control board of XILINX
Miner Type = S9
Miner compile time: Fri Nov 17 17:57:49 CST 2017 type: Antminer S9set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
set_reset_allhashboard = 0x0000ffff
miner ID : 8174cc2e4b590854
set_reset_allhashboard = 0x0000ffff
Checking fans!get fan[2] speed=9120
get fan[2] speed=9120
get fan[2] speed=9120
get fan[2] speed=9120
get fan[4] speed=840
get fan[2] speed=9120
get fan[4] speed=840
get fan[2] speed=9120
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9120
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9120
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9120
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9120
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9120
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9120
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9120
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9120
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9000
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9000
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9000
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9000
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9000
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9000
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9000
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9000
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9000
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=9000
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=8880
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=8880
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=8880
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=8880
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=8880
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=8880
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=8880
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=8880
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=8880
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=8880
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=8880
get fan[4] speed=840
get fan[5] speed=30600
get fan[2] speed=8880
get fan[4] speed=840
get fan[5] speed=30600
Fatal Error: some Fan lost or Fan speed low!

It seems like 5 and 2 are the actual fans. But what are fan[3] and fan[4] in those logs that prevent miner from booting due to low RPM? Any ideas how to fix this?