SOPINE A64 DRAM init error

[vicb]

Hi!

I received the SOPINE A64 with motherboard. 
The problem is that the initializing SDRAM Fail
The log from serial console:

Code:

HELLO! BOOT0 is starting!
boot0 commit : 045061a8bb2580cb3fa02e301f52a015040c158f
 
boot0 version : 4.0.0
set pll start
set pll end
rtc[0] value = 0x00000000
rtc[1] value = 0x00000000
rtc[2] value = 0x00000000
rtc[3] value = 0x00000000
rtc[4] value = 0x00000000
rtc[5] value = 0x00000000
DRAM driver version: V1.1
rsb_send_initseq: rsb clk 400Khz -> 3Mhz
PMU: AXP81X
ddr voltage = 1500 mv
DRAM Type = 3 (2:DDR2,3:DDR3,6:LPDDR2,7:LPDDR3)
DRAM clk = 672 MHz
DRAM zq value: 003b3bbb
DRAM error status 0 
DRAM init error!
initializing SDRAM Fail.

It's a hardware problem or can I solve it?
Thank you!

Mod edit: wrapped terminal output in code tags - heaps with long code, and also prevents 'smilies' randomly popping up