Topic: S7 Hash Rate lower than 3 TH (Read 1171 times)

also what psu are you using? 1 for the whole machine (1600w evga/bitmain psu) or are you using 2 different psu (2 1300w evga)?

Check all your power connections.  Screenshot would be the best though.

What does status screen show?  Does it list all chips as there?   Have you made any changes with restart as if you just turned power off/on it really should not have changed anything.

Are you able to post a picture of status screen?  Also what batch S7 is it?

I have an Antminer s7 , It works properly .
But yesterday it stopped working and I had to restart it.
After restarting it hash rate stuck in 3 TH .
I checked "kernel log" and I found the below failed errors.
can any body tell me what is the problem ?
-----------------------------
2.958509] bone-capemgr bone_capemgr.8: bone: scan failed (1 time)
[    3.497572] bone-capemgr bone_capemgr.8: bone: scan failed (2 time)
[    4.036629] bone-capemgr bone_capemgr.8: bone: scan failed (3 time)
[    4.575690] bone-capemgr bone_capemgr.8: bone: scan failed (4 time)
[    5.114753] bone-capemgr bone_capemgr.8: bone: scan failed (5 time)
[    5.653815] bone-capemgr bone_capemgr.8: bone: scan failed (6 time)
[    6.192880] bone-capemgr bone_capemgr.8: bone: scan failed (7 time)
[    6.731940] bone-capemgr bone_capemgr.8: bone: scan failed (8 time)
[    7.271002] bone-capemgr bone_capemgr.8: bone: scan failed (9 time)
[    7.810065] bone-capemgr bone_capemgr.8: bone: scan failed (10 time)
[    8.318047] bone-capemgr bone_capemgr.8: Failed to scan baseboard eeprom
[    8.325115] bone-capemgr: probe of bone_capemgr.8 failed with error -110
[    8.334647] nand_get_flash_type: 2c,da against 2c,da
[    8.340174] ONFI param page 0 valid
[    8.343846] ONFI flash detected
[    8.347165] NAND device: Manufacturer ID: 0x2c, Chip ID: 0xda (Micron MT29F2G08ABAEAWP), 256MiB, page size: 2048, OOB size: 64
[    8.359075] omap2-nand: detected x8 NAND flash
[    8.363739] nand: using OMAP_ECC_BCH8_CODE_HW ECC scheme
[    8.369341] omap2-nand: using custom ecc layout
[    8.374179] 10 ofpart partitions found on MTD device omap2-nand.0
[    8.380569] Creating 10 MTD partitions on "omap2-nand.0":
[    8.386240] 0x000000000000-0x000000020000 : "spl"
[    8.393127] 0x000000020000-0x000000040000 : "spl_backup1"
[    8.400582] 0x000000040000-0x000000060000 : "spl_backup2"
[    8.407995] 0x000000060000-0x000000080000 : "spl_backup3"
[    8.415271] 0x000000080000-0x000000240000 : "u-boot"
[    8.423527] 0x000000240000-0x000000260000 : "bootenv"
[    8.430498] 0x000000260000-0x000000280000 : "fdt"
[    8.437122] 0x000000280000-0x000000780000 : "kernel"
[    8.448131] 0x000000800000-0x000001c00000 : "root"
[    8.471544] 0x000001c00000-0x000003000000 : "config"