[    0.000000] DMI: System manufacturer System Product Name/P8Z77-V LX, BIOS 1502 11/09/2012

/usr/local/sbin/flashrom -p internal -w P8Z77-V-LX-ASUS-2501.CAP 

flashrom v0.9.9-r1954 on Linux 4.4.19-1-pve (x86_64)

flashrom is free software, get the source code at https://flashrom.org

Calibrating delay loop... OK.

Found chipset "Intel Z77".

Enabling flash write... Warning: SPI Configuration Lockdown activated.

OK.

Found Winbond flash chip "W25Q64.V" (8192 kB, SPI) mapped at physical address 0x00000000ff800000.

Error: Image size (8390656 B) doesn't match the flash chip's size (8388608 B)!