RB 450g no beep signals

Hardware MikroTik hardware general
1

My RouterBoard 450g dont beeb signal during boot.
Serial cable connection does not effect, dial no connect.
Reset dont work. I Press reset button during boot, but LEDs blink only one in first second. It dont have result.
Reset hole too.
I reset in acceord this manual http://wiki.mikrotik.com/wiki/Manual:Password_reset
Serial connetction parameters - - COM1 - 115200 bits/s - 8 data - 1 stop - no parity.
Previous connection with this parameters was successfull.

What me do? How repair router?

2

Log last session(save on the computer):

RouterBOOT-2.39
What do you want to configure?
d - boot delay
k - boot key
s - serial console
n - silent boot
o - boot device
u - cpu mode
f - cpu frequency
r - reset booter configuration
e - format nand
g - upgrade firmware
i - board info
p - boot protocol
b - booter options
t - do memory testing
x - exit setup
your choice: p - boot protocol

Choose which boot protocol to use:

  • 1 - bootp protocol
    2 - dhcp protocol
    your choice: 1 - bootp protocol

RouterBOOT-2.39
What do you want to configure?
d - boot delay
k - boot key
s - serial console
n - silent boot
o - boot device
u - cpu mode
f - cpu frequency
r - reset booter configuration
e - format nand
g - upgrade firmware
i - board info
p - boot protocol
b - booter options
t - do memory testing
x - exit setup
your choice: b - booter options

Select which booter you want to load:

  • 1 - load regular booter
    2 - force backup-booter loading
    your choice: 1 - load regular booter

RouterBOOT-2.39
What do you want to configure?
d - boot delay
k - boot key
s - serial console
n - silent boot
o - boot device
u - cpu mode
f - cpu frequency
r - reset booter configuration
e - format nand
g - upgrade firmware
i - board info
p - boot protocol
b - booter options
t - do memory testing
x - exit setup
your choice: o - boot device

Select boot device:
e - boot over Ethernet

  • n - boot from NAND, if fail then Ethernet
    1 - boot Ethernet once, then NAND
    o - boot from NAND only
    b - boot chosen device
    f - boot Flash Configure Mode
    3 - boot Flash Configure Mode once, then NAND
    your choice: n - boot from NAND, if fail then Ethernet

RouterBOOT-2.3
What do you want to configure?
d - boot delay
k - boot key
s - serial console
n - silent boot
o - boot device
u - cpu mode
f - cpu frequency
r - reset booter configuration
e - format nand
g - upgrade firmware
i - board info
p - boot protocol
b - booter options
t - do memory testing
x - exit setup
your choice: x - exit setup


writing settings to flash… OK

after this happen problem.
Why in begin log “RouterBOOT-2.39” but last log menu - “RouterBOOT-2.3”?

3

mitay, check if “n - silent boot” is not turned on. This option disables beeper when booting.

4

I can’t enter to bootloader menu, it is my problem.
HyperTerminal no more connects to router. I don’t know why. Do you have anything idea?

5

Try to reinstall the router with Netinstall.
Hold RB450G reset button for about 10 seconds while booting, to make RB450G look for Netinstall server.

6

Reset button don’t work, holding its don’t give result. Ports LEDs Blink only one - when Power on with and wirhout holding reset button. But in section “Routers/Drives” in program Netinstall router don’t show up. Port LEDs don’t lighting, side LEDs lighting. There is no beep signals.

7

Have you tried other baud rates in HyperTerminal? For example, 9600 bits/s to see anything in terminal while RB450G boots.

If there is no output, only solution is prepare Netinstall on PC, connect PC to ether1 port of RB450G and reset it with reset hole in order to connect to Netinstall after backup booter loads.
Try different metal objects to cover both sides of reset hole, because sometimes it is quite tricky with screwdriver.

8

How make prepare Netinstall on PC, what “Client IP adress” in “Net booting” button?
After reset router takes default ip?
I give him file system-5.20-mipsbe.npk and other 5.20 packages, its right?

Reset hole router action is too reset button.

9

Set static IP on PC, for example, 10.0.0.1, netmask - 255.255.255.0 and in Netinstall “Client IP adress” - 10.0.0.2

Your router does not seem to be able to boot in RouterOS, so it does not take default IP address. In this case, the point of reset is connecting to Netinstall and getting Client IP from Netinstall.

Yes, Mipsbe packages are correct ones for RB450G.

10

nothing happens
link act LEDs don’t light, both on ports routerboard and on ethernet port PC
other leds(side) only light, don’t blink

11

Hi!

Sorry for revive this old thread, mitay you got any solution ?

My RB450G it’s a bit death. Blue led it’s on and the upper led it’s also on.

No beep on boot.
No activity on ethernet port leds, no link, Only a fast On and Off when I insert the power.
None within hyperterminal COM port.

The only thigs I see are some symbols similar to a house sometimes on the “boot”.

I tried NetInstall but I don’t see nothing.

Shall I prepare a grave for this routerboard?

12

I’ve got the same problems. same routerboard. any advice?

13

I’ve got the same problems. Same Routerboard.

Any advice?

14

I took the routerboard to an electronical technician which changed the electronical capacitor which was a bit blowed up (or inflated)

Take an eye on these capacitors:

If your RouterBoard has one in a similar status that should be the problem of the board.