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Author Topic: S9 Antminer Fatal Errors with fans and network connection + more...  (Read 63 times)
btfd-RP
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June 16, 2018, 08:02:18 PM
 #1

Hi

been having some issues after installing new firmware for my S9 13.5T and a failed fan

firstly the temps went way up from this, so i tried cleaning the cards and one chip+heatsink fell off, so 1 board down, until i can get it reattached by a pro

but

had some issues getting working with 2 boards

for some reason the 2 replacement fans i bought do not register on the GUI as spinning although it very much is and not from the force of the other

fan3 and fan6 where the two working ports

but was getting error saying fan5: fatal error

fan3 still shows no new measurment, i gotta feeling the errors are stopping the hashing  (durrr)

THE BEST results i can seem to get now is the unit booting up and it registers the two boards fine, get a quick hash and then the red lights are out and its hashing at 4.3k GH/S(ideal)     0 (ZERO) GH/S(RT)

these things are built like xmas lights expect bit harder to switch out bulbs Sad

Code:
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 3.14.0-xilinx-gb190cb0-dirty ([email protected]) (gcc version 4.8.3 20140320 (prerelease) (Sourcery CodeBench Lite 2014.05-23) ) #57 SMP PREEMPT Fri Dec 9 14:49:22 CST 2016
[    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
[    0.000310] ps7-ttc #0 at f0006000, irq=43
[    0.000621] Console: colour dummy device 80x30
[    0.000658] Calibrating delay loop... 1325.46 BogoMIPS (lpj=6627328)
[    0.040207] pid_max: default: 32768 minimum: 301
[    0.040426] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.040448] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.042629] CPU: Testing write buffer coherency: ok
[    0.042990] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.043054] Setting up static identity map for 0x4c4af8 - 0x4c4b50
[    0.043275] L310 cache controller enabled
[    0.043295] l2x0: 8 ways, CACHE_ID 0x410000c8, AUX_CTRL 0x72760000, Cache size: 512 kB
[    0.121038] CPU1: Booted secondary processor
[    0.210229] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.210361] Brought up 2 CPUs
[    0.210380] SMP: Total of 2 processors activated.
[    0.210389] CPU: All CPU(s) started in SVC mode.
[    0.211050] devtmpfs: initialized
[    0.213478] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[    0.214723] regulator-dummy: no parameters
[    0.223719] NET: Registered protocol family 16
[    0.226045] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.228346] cpuidle: using governor ladder
[    0.228360] cpuidle: using governor menu
[    0.235855] syscon f8000000.ps7-slcr: regmap [mem 0xf8000000-0xf8000fff] registered
[    0.237383] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[    0.237396] hw-breakpoint: maximum watchpoint size is 4 bytes.
[    0.237514] zynq-ocm f800c000.ps7-ocmc: ZYNQ OCM pool: 256 KiB @ 0xf0080000
[    0.259533] bio: create slab <bio-0> at 0
[    0.261551] vgaarb: loaded
[    0.262279] SCSI subsystem initialized
[    0.263180] usbcore: registered new interface driver usbfs
[    0.263354] usbcore: registered new interface driver hub
[    0.263591] usbcore: registered new device driver usb
[    0.264122] media: Linux media interface: v0.10
[    0.264278] Linux video capture interface: v2.00
[    0.264523] pps_core: LinuxPPS API ver. 1 registered
[    0.264535] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <[email protected]>
[    0.264658] PTP clock support registered
[    0.265019] EDAC MC: Ver: 3.0.0
[    0.266081] Advanced Linux Sound Architecture Driver Initialized.
[    0.269059] DMA-API: preallocated 4096 debug entries
[    0.269072] DMA-API: debugging enabled by kernel config
[    0.269161] Switched to clocksource arm_global_timer
[    0.289777] NET: Registered protocol family 2
[    0.290453] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[    0.290550] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[    0.290709] TCP: Hash tables configured (established 8192 bind 8192)
[    0.290772] TCP: reno registered
[    0.290792] UDP hash table entries: 512 (order: 2, 16384 bytes)
[    0.290854] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[    0.291146] NET: Registered protocol family 1
[    0.291528] RPC: Registered named UNIX socket transport module.
[    0.291542] RPC: Registered udp transport module.
[    0.291550] RPC: Registered tcp transport module.
[    0.291558] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.291572] PCI: CLS 0 bytes, default 64
[    0.292060] hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available
[    0.294144] futex hash table entries: 512 (order: 3, 32768 bytes)
[    0.295581] bounce pool size: 64 pages
[    0.296505] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[    0.296712] msgmni has been set to 1486
[    0.297535] io scheduler noop registered
[    0.297548] io scheduler deadline registered
[    0.297590] io scheduler cfq registered (default)
[    0.310271] dma-pl330 f8003000.ps7-dma: Loaded driver for PL330 DMAC-2364208
[    0.310292] dma-pl330 f8003000.ps7-dma: DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Events-16
[    0.434779] e0001000.serial: ttyPS0 at MMIO 0xe0001000 (irq = 82, base_baud = 3124999) is a xuartps
[    1.007348] console [ttyPS0] enabled
[    1.011648] xdevcfg f8007000.ps7-dev-cfg: ioremap 0xf8007000 to f0068000
[    1.019442] [drm] Initialized drm 1.1.0 20060810
[    1.036432] brd: module loaded
[    1.045874] loop: module loaded
[    1.055587] e1000e: Intel(R) PRO/1000 Network Driver - 2.3.2-k
[    1.061522] e1000e: Copyright(c) 1999 - 2013 Intel Corporation.
[    1.069591] libphy: XEMACPS mii bus: probed
[    1.073962] ------------- phy_id = 0x3625e62
[    1.078702] xemacps e000b000.ps7-ethernet: pdev->id -1, baseaddr 0xe000b000, irq 54
[    1.087329] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.093980] ehci-pci: EHCI PCI platform driver
[    1.101425] zynq-dr e0002000.ps7-usb: Unable to init USB phy, missing?
[    1.108234] usbcore: registered new interface driver usb-storage
[    1.115156] mousedev: PS/2 mouse device common for all mice
[    1.121296] i2c /dev entries driver
[    1.128196] zynq-edac f8006000.ps7-ddrc: ecc not enabled
[    1.133732] cpufreq_cpu0: failed to get cpu0 regulator: -19
[    1.139654] Xilinx Zynq CpuIdle Driver started
[    1.144500] sdhci: Secure Digital Host Controller Interface driver
[    1.150626] sdhci: Copyright(c) Pierre Ossman
[    1.154936] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.161834] mmc0: no vqmmc regulator found
[    1.165850] mmc0: no vmmc regulator found
[    1.209183] mmc0: SDHCI controller on e0100000.ps7-sdio [e0100000.ps7-sdio] using ADMA
[    1.217870] usbcore: registered new interface driver usbhid
[    1.223388] usbhid: USB HID core driver
[    1.228117] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xda
[    1.234416] nand: Micron MT29F2G08ABAEAWP
[    1.238380] nand: 256MiB, SLC, page size: 2048, OOB size: 64
[    1.244327] Bad block table found at page 131008, version 0x01
[    1.250548] Bad block table found at page 130944, version 0x01
[    1.256602] 3 ofpart partitions found on MTD device pl353-nand
[    1.262389] Creating 3 MTD partitions on "pl353-nand":
[    1.267480] 0x000000000000-0x000002000000 : "BOOT.bin-env-dts-kernel"
[    1.275567] 0x000002000000-0x00000b000000 : "angstram-rootfs"
[    1.282912] 0x00000b000000-0x000010000000 : "upgrade-rootfs"
[    1.291918] TCP: cubic registered
[    1.295157] NET: Registered protocol family 17
[    1.299878] Registering SWP/SWPB emulation handler
[    1.305805] regulator-dummy: disabling
[    1.310181] UBI: attaching mtd1 to ubi0
[    1.836289] UBI: scanning is finished
[    1.848065] UBI: attached mtd1 (name "angstram-rootfs", size 144 MiB) to ubi0
[    1.855148] UBI: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
[    1.861909] UBI: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
[    1.868573] UBI: VID header offset: 2048 (aligned 2048), data offset: 4096
[    1.875451] UBI: good PEBs: 1152, bad PEBs: 0, corrupted PEBs: 0
[    1.881431] UBI: user volume: 1, internal volumes: 1, max. volumes count: 128
[    1.888539] UBI: max/mean erase counter: 18/10, WL threshold: 4096, image sequence number: 767909345
[    1.897668] UBI: available PEBs: 0, total reserved PEBs: 1152, PEBs reserved for bad PEB handling: 40
[    1.906885] UBI: background thread "ubi_bgt0d" started, PID 1080
[    1.906891] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[    1.910997] ALSA device list:
[    1.911001]   No soundcards found.
[    1.927355] UBIFS: background thread "ubifs_bgt0_0" started, PID 1082
[    1.988536] UBIFS: mounted UBI device 0, volume 0, name "rootfs"
[    1.994491] UBIFS: LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[    2.003594] UBIFS: FS size: 128626688 bytes (122 MiB, 1013 LEBs), journal size 9023488 bytes (8 MiB, 72 LEBs)
[    2.013478] UBIFS: reserved for root: 0 bytes (0 KiB)
[    2.018507] UBIFS: media format: w4/r0 (latest is w4/r0), UUID F4300A22-CCD3-41F9-98C8-CD0E0F28FD62, small LPT model
[    2.030067] VFS: Mounted root (ubifs filesystem) on device 0:11.
[    2.037475] devtmpfs: mounted
[    2.040608] Freeing unused kernel memory: 204K (c06d2000 - c0705000)
[    2.887101] random: dd urandom read with 0 bits of entropy available
[    3.289176]
[    3.289176] bcm54xx_config_init
[    3.899188]
[    3.899188] bcm54xx_config_init
[    6.900034] xemacps e000b000.ps7-ethernet: Set clk to 24999999 Hz
[    6.906125] xemacps e000b000.ps7-ethernet: link up (100/FULL)
[   19.467464] In axi fpga driver!
[   19.470572] request_mem_region OK!
[   19.473927] AXI fpga dev virtual address is 0xf01fe000
[   19.479032] *base_vir_addr = 0x8c510
[   19.494150] In fpga mem driver!
[   19.497490] request_mem_region OK!
[   19.501092] fpga mem virtual address is 0xf3000000
[   20.269196]
[   20.269196] bcm54xx_config_init
[   20.909192]
[   20.909192] bcm54xx_config_init
[   23.910053] xemacps e000b000.ps7-ethernet: Set clk to 24999999 Hz
[   23.916071] xemacps e000b000.ps7-ethernet: link up (100/FULL)
[  492.826779] random: nonblocking pool is initialized
Detect 1GB control board of XILINX
Miner Type = S9
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x0000ffff
Check chain[5] PIC fw version=0x03
Check chain[7] PIC fw version=0x03
Fix freq=600 Chain[5] voltage_pic=23 value=930
Fix freq=600 Chain[7] voltage_pic=23 value=930
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
Chain[J6] has 63 asic
Chain[J8] has 63 asic
Chain[J6] has no freq in PIC, set default freq=600M
Chain[J6] has no core num in PIC
Chain[J8] has no freq in PIC, set default freq=600M
Chain[J8] has no core num in PIC

Miner fix freq ...
read PIC voltage=940 on chain[5]
Chain:5 chipnum=63
Asic[ 0]:600
Asic[ 1]:600 Asic[ 2]:600 Asic[ 3]:600 Asic[ 4]:600 Asic[ 5]:600 Asic[ 6]:600 Asic[ 7]:600 Asic[ 8]:600
Asic[ 9]:600 Asic[10]:600 Asic[11]:600 Asic[12]:600 Asic[13]:600 Asic[14]:600 Asic[15]:600 Asic[16]:600
Asic[17]:600 Asic[18]:600 Asic[19]:600 Asic[20]:600 Asic[21]:600 Asic[22]:600 Asic[23]:600 Asic[24]:600
Asic[25]:600 Asic[26]:600 Asic[27]:600 Asic[28]:600 Asic[29]:600 Asic[30]:600 Asic[31]:600 Asic[32]:600
Asic[33]:600 Asic[34]:600 Asic[35]:600 Asic[36]:600 Asic[37]:600 Asic[38]:600 Asic[39]:600 Asic[40]:600
Asic[41]:600 Asic[42]:600 Asic[43]:600 Asic[44]:600 Asic[45]:600 Asic[46]:600 Asic[47]:600 Asic[48]:600
Asic[49]:600 Asic[50]:600 Asic[51]:600 Asic[52]:600 Asic[53]:600 Asic[54]:600 Asic[55]:600 Asic[56]:600
Asic[57]:600 Asic[58]:600 Asic[59]:600 Asic[60]:600 Asic[61]:600 Asic[62]:600
Chain:5 max freq=600
Chain:5 min freq=600

read PIC voltage=940 on chain[7]
Chain:7 chipnum=63
Asic[ 0]:600
Asic[ 1]:600 Asic[ 2]:600 Asic[ 3]:600 Asic[ 4]:600 Asic[ 5]:600 Asic[ 6]:600 Asic[ 7]:600 Asic[ 8]:600
Asic[ 9]:600 Asic[10]:600 Asic[11]:600 Asic[12]:600 Asic[13]:600 Asic[14]:600 Asic[15]:600 Asic[16]:600
Asic[17]:600 Asic[18]:600 Asic[19]:600 Asic[20]:600 Asic[21]:600 Asic[22]:600 Asic[23]:600 Asic[24]:600
Asic[25]:600 Asic[26]:600 Asic[27]:600 Asic[28]:600 Asic[29]:600 Asic[30]:600 Asic[31]:600 Asic[32]:600
Asic[33]:600 Asic[34]:600 Asic[35]:600 Asic[36]:600 Asic[37]:600 Asic[38]:600 Asic[39]:600 Asic[40]:600
Asic[41]:600 Asic[42]:600 Asic[43]:600 Asic[44]:600 Asic[45]:600 Asic[46]:600 Asic[47]:600 Asic[48]:600
Asic[49]:600 Asic[50]:600 Asic[51]:600 Asic[52]:600 Asic[53]:600 Asic[54]:600 Asic[55]:600 Asic[56]:600
Asic[57]:600 Asic[58]:600 Asic[59]:600 Asic[60]:600 Asic[61]:600 Asic[62]:600
Chain:7 max freq=600
Chain:7 min freq=600

max freq = 600
set baud=1
Chain[J6] PIC temp offset=62,-5,0,0,0,0,34,0
Chain[J6] chip[244] use PIC middle temp offset=-5 typeID=55
New offset Chain[5] chip[244] local:24 remote:27 offset:27
Chain[J6] chip[244] get middle temp offset=27 typeID=55
Chain[J6] chip[132] use PIC middle temp offset=0 typeID=00
Warning: Chain[J6] has no temp offset in PIC! will fix it
New offset Chain[5] chip[244] local:24 remote:27 offset:27
Chain[J6] chip[244] get middle temp offset=27 typeID=55
Chain[J8] PIC temp offset=62,-5,0,0,0,0,34,0
Chain[J8] chip[244] use PIC middle temp offset=-5 typeID=55
New offset Chain[7] chip[244] local:25 remote:28 offset:27
Chain[J8] chip[244] get middle temp offset=27 typeID=55
Chain[J8] chip[132] use PIC middle temp offset=0 typeID=00
Warning: Chain[J8] has no temp offset in PIC! will fix it
New offset Chain[7] chip[244] local:25 remote:28 offset:27
Chain[J8] chip[244] get middle temp offset=27 typeID=55
Chain[J6] set working voltage=930 [23]
Chain[J8] set working voltage=930 [23]
restartNum = 2 , auto-reinit enabled...
setStartTimePoint total_tv_start_sys=775 total_tv_end_sys=776
Fatal Error: Fan lost!
Fatal Error: Fan lost!
Fatal Error: Fan lost!
Fatal Error: Fan lost!
Fatal Error: Fan lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
Fatal Error: network connection lost!
Fatal Error: Fan lost!
do read_temp_func once...
do check_asic_reg 0x08

get RT hashrate from Chain[5]: (asic index start from 1-63)

get RT hashrate from Chain[7]: (asic index start from 1-63)
Check Chain[J6] ASIC RT error: (asic index start from 1-63)
Asic[57]=141.062000
Check Chain[J8] ASIC RT error: (asic index start from 1-63)
Done check_asic_reg
do read temp on Chain[5]
Chain[5] Chip[62] TempTypeID=55 middle offset=27
read failed, old value: Chain[5] Chip[62] local Temp=43
read failed on Chain[5] Chip[62] middle Temp old value:59
Done read temp on Chain[5]
do read temp on Chain[7]
Chain[7] Chip[62] TempTypeID=55 middle offset=27
read failed, old value: Chain[7] Chip[62] local Temp=44
read failed on Chain[7] Chip[62] middle Temp old value:58
Done read temp on Chain[7]
set FAN speed according to: temp_highest=59 temp_top1[PWM_T]=59 temp_top1[TEMP_POS_LOCAL]=44 temp_change=0 fix_fan_steps=-19
FAN PWM: 0
read_temp_func Done!
CRC error counter=0
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June 16, 2018, 08:20:26 PM
 #2

First: if an S9 doesn't sense both fans during startup, it will shutdown or just go into an endless test loop.

Obviously not all fans are created equal.  If its not sensing the speed there is likely an incompatibility.  The S&H is high, but Bitmain sells replacement fans for a reasonable price.



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June 20, 2018, 08:33:29 PM
 #3

First: if an S9 doesn't sense both fans during startup, it will shutdown or just go into an endless test loop.

Obviously not all fans are created equal.  If its not sensing the speed there is likely an incompatibility.  The S&H is high, but Bitmain sells replacement fans for a reasonable price.

thx for the reply....

i gotta few different makes as well as ones the same but having issues with them all Sad

i think i might have some errors due to faulty chips tho, with two remaining working boards i both get Asic[29] & [57] with rather high values, odd that its same chips?

also 63 chips per board but seems like on 62 are being recognised on both, im out of warranty too now, seemed to happen just less than 1 month after it expired too Sad

for anyone who is reading, dont update with bitmain firmware!
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June 20, 2018, 09:58:55 PM
 #4

There are some miners complaining here the same issue as yours and I think to install the old firmware version would save your time to fix this issue.

Anyway, you can also check this guide https://bitcointalk.to/index.php?topic=1526215.0and you can check the compatible model fan to your antminer s9 because if you put a wrong fan model it will result of error or the miner will hardly to detect your fan because of incompatibility issue but try to roll back or install the old firmware (November firmware should work).

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