Power issue in HARDWARE RB411 / RB433 and probably RB433AH

Power Supply: DVE 24V 0,8A
Tested RB: 411, 433

ISSUE: When multiple power outage RB433 and 411 not running no any led lighting (grenn and blue led off) and RB not booting, power supply conected.
I tested on 1x RB411, 4x RB433 and this some problem.

I try power supply 12V and this some problem.

When I plug and unplug power suply very fast 5-10 times RB Halted and no any leds light, no boot itp.
Then I unplug power , wait 5-10 secounds and plug power again then RB started and booting ok .

Please confirm issue. I tested on 5RB (1x R411, 4x 433)

Anyone confirms problem ?

en: got the same problem with 411 and 433 after multiple power outages the board seems to be powered off but the power supply is plugged in. i’ve put n UPS and boards working ok

pl: powterdzam twoj problem, mam to samo z kilkoma rb 411 i 433 tak jakby ktos wyciagnal wtyczke :>

I tested RB333,600 and all ok this problem does`t exist.

Issue only in RB4XX.

any workarounds? (except changing power supply and giving ups)

Plug into a UPS or run off direct battery power. Anyone who lived through the RB230 series is familiar with losing configs from rapid power fluctuations so this is not a new problem.

George

Not new problem but in RB 133 , 333,600 does`t exist ?.

Doesn’t matter. If you want serious protection from rapidly fluctuating power, buy something expensive with a clever filtered and buffered power supply.

If you want cheap, fast and extremely effective, buy RouterBOARD. We do, then we give the RBs protected power and everyone is happy because our power is lousy here and we know that and know what to do.

We live in the lightning capital of Canada and have to filter power well to survive, and even then we blow stuff up. This year, btw, Toronto has suffered double the normal lightning hits for this time of year and we spend half our week fixing towers.

Our power flickers. We provide cheap UPSs to deal with flickers. You can’t have everything at once for fifty bucks.

George

I use RB433 as 5ghz APC and give my clients.
Not posible to give RB433 and ups :slight_smile:

On power supply DVE 24V, 1.6A on RB411, if power lost when RB running for few hours and reboting , and power fast back again then RB Halted allways :frowning:

On DVE 24V, 0,8A, RB halted but only sometimes.

ok placing a capacitor 1000μF do the trick :stuck_out_tongue:

but there’s a question?
dear MT :stuck_out_tongue: what about warranty??

but this time it’s hardware problem not software and i’ve got some of 4xx :confused:

i found one working psu with 4xx it’s old philips 18v (bought 3 years ago)
;p

blah i used this psu with all other 133/5xx/333/600 with no problem :stuck_out_tongue:

I had a power anomoly this morning on my main tower and I lost two rb411 boards at the same time when everything else came back up. Please not I have $500 power supply powering everything on the tower at 24v dc so its not the psu - its something with the board.

I’ve had them down all day because I never heard of this problem (actually I remember reading this a while back now but it never dawned on me today that this could be problem). I hope when I kill power to the whole tower tonight and wait a few minutes and power back up that they boot fine. It seems as though this is the expected behaviour correct - when they don’t boot after power issue turn power off and wait a few minutes then turn back on and they boot? Is this what I should expect?

Thanks,
Scott

indeed :>
turn off power for more than 1 minute and it should boot up properly :>

Any new information about this issue?

the quickest way is to rma your unit :>

regards

http://forum.routerboard.com/viewtopic.php?f=3&t=3868


In RB 411/A/AH you must change capacitor C819 to: ceramic capacitor, type 0805, 1uF
In RB 433/AH you must change capacitor C828 to: ceramic capacitor, type 0805, 1uF

1uF 50V ?

What abaut warranty when I replace this capacitor ?

Actual RB 4XX from distributors is with this fix ?