Kernel Failure Routerboard rebooted 433AH and now 100Mhz

RouterOS Wireless Networking
1

Hello to all,
i have this problem with 2 Routerboard 433AH.
Yesterday the routerboard work fine, at 14:00 Pm 1 of this routerboard reboot and into log file appear kernel failure.
Reboot many times and i must to go into routerboard via telnet and i try to make /system routerboard upgrade
Then i have rebooted and now WORKS, but at 100Mhz.
/system resource> print
uptime: 3h43m52s
version: “3.10”
free-memory: 112528kB
total-memory: 127592kB
cpu: “MIPS 24K V7.4”
cpu-count: 1
cpu-frequency: 100MHz
cpu-load: 100
free-hdd-space: 36644kB
total-hdd-space: 61440kB
write-sect-since-reboot: 22415
write-sect-total: 12062548
bad-blocks: 0
architecture-name: “mipsbe”
board-name: “RB433”


How i can solve this big problem?

2

You can set your RB433AH CPU speed in /system routerboard settings

/system routerboard settings set cpu-frequency=680MHz

The available options are:- 100MHz 150MHz 200MHz 300MHz 400MHz 600MHz 680MHz 800MHz

3

if it works, upgrade to v3.22 and after that also the bootloader. then see if you can set it back to 680MHz