How to disable fan to DR5.



  • Official comment

    Hello, please check if the article below could help,  if the problem still exists, please contact us at  to provide the  updated kernel log.


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    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: 206000K/245760K available (5317K kernel code, 230K rwdata, 1844K rodata, 1024K init, 222K bss, 23376K 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 - 0xc07fe410 (8154 kB)
    .init : 0xc0800000 - 0xc0900000 (1024 kB)
    .data : 0xc0900000 - 0xc0939a60 ( 231 kB)
    .bss : 0xc0939a60 - 0xc09713e8 ( 223 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 <>
    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: 12384K (ccee9000 - 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: NAND_ECC_HW
    mtd->writesize = 2048
    ecc->strength = 1
    ecc->size = 2048
    mtd->writesize = 2048
    chip->ecc_strength_ds = 4
    chip->ecc_step_ds = 512
    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
    nand_read_bbt: bad block at 0x000002420000
    nand_read_bbt: bad block at 0x000002440000
    nand_read_bbt: bad block at 0x000002460000
    5 ofpart partitions found on MTD device pl35x-nand
    Creating 5 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"
    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 (c0800000 - c0900000)
    EXT4-fs (ram0): re-mounted. Opts: block_validity,delalloc,barrier,user_xattr
    random: dd urandom read with 0 bits of entropy available
    jffs2: Empty flash at 0x001c0e5c ends at 0x001c1000
    jffs2: Empty flash at 0x001c2308 ends at 0x001c2800
    jffs2: Empty flash at 0x001c3b08 ends at 0x001c4000
    jffs2: Empty flash at 0x001c5308 ends at 0x001c5800
    jffs2: Empty flash at 0x001c6b08 ends at 0x001c7000
    jffs2: Empty flash at 0x001c8274 ends at 0x001c8800
    jffs2: Empty flash at 0x001c9b08 ends at 0x001ca000
    jffs2: Empty flash at 0x001cb308 ends at 0x001cb800
    jffs2: Empty flash at 0x001ccb08 ends at 0x001cd000
    jffs2: Empty flash at 0x001ce308 ends at 0x001ce800
    jffs2: Empty flash at 0x001cfb08 ends at 0x001d0000
    jffs2: Empty flash at 0x001d1274 ends at 0x001d1800
    jffs2: Empty flash at 0x001d2b08 ends at 0x001d3000
    jffs2: Empty flash at 0x001d4308 ends at 0x001d4800
    jffs2: Empty flash at 0x001d5a74 ends at 0x001d6000
    jffs2: Empty flash at 0x001d7274 ends at 0x001d7800
    jffs2: Empty flash at 0x001d8a74 ends at 0x001d9000
    jffs2: Empty flash at 0x001da308 ends at 0x001da800
    jffs2: Empty flash at 0x001dbde8 ends at 0x001dc000
    jffs2: Empty flash at 0x001dd308 ends at 0x001dd800
    jffs2: Empty flash at 0x001deb08 ends at 0x001df000
    jffs2: Empty flash at 0x00524c74 ends at 0x00525000
    jffs2: Empty flash at 0x0052623c ends at 0x00526800
    jffs2: Empty flash at 0x00542238 ends at 0x00542800
    jffs2: Empty flash at 0x00543a38 ends at 0x00544000
    jffs2: Empty flash at 0x00545238 ends at 0x00545800
    jffs2: Empty flash at 0x00546a38 ends at 0x00547000
    jffs2: Empty flash at 0x00548238 ends at 0x00548800
    jffs2: Empty flash at 0x00549a38 ends at 0x0054a000
    jffs2: Empty flash at 0x0054b238 ends at 0x0054b800
    jffs2: Empty flash at 0x0054ca38 ends at 0x0054d000
    jffs2: Empty flash at 0x0054e238 ends at 0x0054e800
    jffs2: Empty flash at 0x0054fa38 ends at 0x00550000
    jffs2: Empty flash at 0x00551238 ends at 0x00551800
    jffs2: Empty flash at 0x00552a38 ends at 0x00553000
    jffs2: Empty flash at 0x00554238 ends at 0x00554800
    jffs2: Empty flash at 0x00555a38 ends at 0x00556000
    jffs2: Empty flash at 0x00557238 ends at 0x00557800
    jffs2: Empty flash at 0x00558a38 ends at 0x00559000
    jffs2: Empty flash at 0x0055a238 ends at 0x0055a800
    jffs2: Empty flash at 0x0055ba38 ends at 0x0055c000
    jffs2: Empty flash at 0x0055d238 ends at 0x0055d800
    jffs2: Empty flash at 0x0055ea38 ends at 0x0055f000
    jffs2: notice: (694) check_node_data: wrong data CRC in data node at 0x00526ae4: read 0xf10a16be, calculated 0xf944234.
    jffs2: notice: (694) check_node_data: wrong data CRC in data node at 0x005252e4: read 0xf10a16be, calculated 0xf944234.
    jffs2: notice: (694) check_node_data: wrong data CRC in data node at 0x00523d1c: read 0xf10a16be, calculated 0xf4a42a92.
    jffs2: notice: (694) check_node_data: wrong data CRC in data node at 0x002a62e4: read 0xf10a16be, calculated 0xf944234.
    jffs2: notice: (694) check_node_data: wrong data CRC in data node at 0x002a4ae4: read 0xf10a16be, calculated 0xf944234.
    jffs2: notice: (694) check_node_data: wrong data CRC in data node at 0x002a337c: read 0xf10a16be, calculated 0x642d380.
    jffs2: notice: (694) check_node_data: wrong data CRC in data node at 0x0025e2e4: read 0xf10a16be, calculated 0xf944234.
    jffs2: notice: (694) check_node_data: wrong data CRC in data node at 0x0025cbcc: read 0xf10a16be, calculated 0xc327d321.
    jffs2: notice: (694) check_node_data: wrong data CRC in data node at 0x001c0000: read 0xd9dde798, calculated 0xd644b82d.
    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
    EXT4-fs (ram0): re-mounted. Opts: (null)
    In axi fpga driver!
    request_mem_region OK!
    AXI fpga dev virtual address is 0xcf99c000
    *base_vir_addr = 0xab002
    In fpga mem driver!
    request_mem_region OK!
    fpga mem virtual address is 0xd2000000
    random: nonblocking pool is initialized
    Jan 27 14:39:02 (none) local0.err cgminer: Miner compile time: Tue Jan 29 10:45:07 CST 2019 type: Antminer DR5
    Jan 27 14:39:02 (none) local0.warn cgminer: Started cgminer 4.9.0
    Jan 27 14:39:02 (none) local0.notice cgminer[1196]: bitmain_dcr_prepare, working in normal mode. frequency 600MHz.
    Jan 27 14:39:02 (none) local0.warn cgminer[1196]: mmap axi_fpga_addr = 0xb6f94000
    Jan 27 14:39:02 (none) local0.warn cgminer[1196]: axi_fpga_addr data = 0xb002
    Jan 27 14:39:02 (none) local0.warn cgminer[1196]: mmap fpga_mem_addr = 0xb5d38000
    Jan 27 14:39:02 (none) local0.warn cgminer[1196]: bitmain_dcr_init
    Jan 27 14:39:02 (none) local0.notice cgminer[1196]: Begain check_fan_speed

    Comment actions Permalink

    Hello thanks for oyour answer, but you dont answer to my question.

    I want to disable it. I put my DR5 to the oil and i just want to mine without the fan.

    And how can i overclock my DR5 plz .

    Comment actions Permalink

    Can you not just use 2 fan emulators
    NZ$ 23.31 40%OFF | 5Pcs/10Pcs 5-36V PWM Fan Simulator Emulator Speed Controller for Antminer Avalon WhatsMiner All Miner Universal

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