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RB800+RB/502 RB Hang

Posted: Tue Jul 20, 2010 4:08 am
by Lakis
RB600+RB/502 4xUB5 2xR52H running stable but 4x nstreem + ton of firewall rules max the cpu 100%
I try to change RB600 to new one RB800 everything else same but after 2min or 1min or 5min RB800 hang
I got extra RB800 but same
I try 48v 0.7A DC than 24V 1.6A and 12V 4A DC
I try every combination but no success just i dont have extra RB/502

Please for some advice or some hunt
Tnx.

Re: RB800+RB/502 RB Hang

Posted: Tue Jul 20, 2010 8:45 am
by aaa

Re: RB800+RB/502 RB Hang

Posted: Tue Jul 20, 2010 1:53 pm
by Lakis
Tnx aaa
Well I dont have to (or should I do??????)
This fix is for High cpu temp. my cpu temp. is around 40C
and after 1-5min my RB freeze I have to do hard reboot

Pls if anyone have this problem....

Re: RB800+RB/502 RB Hang

Posted: Tue Jul 20, 2010 2:06 pm
by aaa
With some RB800 I have same hang up on my table in room temp. with wireless attached. Try this temp. fix if not help I have one more fix for RB502 :))

Re: RB800+RB/502 RB Hang

Posted: Tue Jul 20, 2010 7:12 pm
by Lakis
OK I dont get it we try it with Complicated fix because we need to use RB/502 but it didnt work
with Simple fix RB/502 work and RB800 stop freeze
Now I got new issues
With all 6wlan disabled cpu is 0-1%
nowlan.JPG
with 1 wlan enabled cpu is 80%
1wlan.JPG

Re: RB800+RB/502 RB Hang

Posted: Wed Jul 21, 2010 2:25 pm
by aaa
Yes, they are can be symptoms daughterboard connector malfunction. First - test all 4 wireless in RB800 without daughterboard device. If test success add full temp. fix and check is it your RB502 have this fix - see attached pic. All RB502 shiped les then ~one year ago have this fix. Old RB502 don't have this fix because it designed work only with RB500. This fix improve mPCI stability to work with RB600/RB800 . Ignore the wire on picture - it's just additional grounding, you need to look for small brown 1000pF capacitor. If you don't have it put it like on picture.

Re: RB800+RB/502 RB Hang

Posted: Thu Jul 22, 2010 10:23 pm
by Lakis
RB800 without daughterboard is running stable (but with fix)
with daughterboard only when I enable wlans on daughterboard in this case (like up in the pic) wlan5 or wlan6 CPU goes >80%
I'll add extra capacitor like on the pic. u send, I'll see what happens
Tnx.

Re: RB800+RB/502 RB Hang

Posted: Fri Jul 23, 2010 11:42 pm
by Lakis
I add extra capacitor like on the pic. but no success again when I enable wlans on daughterboard cpu goes >80%
if any one have any suggestions pls let me know
Tnx.

Re: RB800+RB/502 RB Hang

Posted: Mon Jul 26, 2010 8:28 am
by aaa
Did you put full temp. fix on RB800? OK I try repeat it on my table.

Re: RB800+RB/502 RB Hang

Posted: Tue Jul 27, 2010 1:31 am
by Lakis
Yes finally it work, I made little mistake fixing the board with the resistor but now its ok.
Tnx aaa

Re: RB800+RB/502 RB Hang

Posted: Tue Aug 31, 2010 4:38 pm
by honzam
If I have an older cards rb502 that dont have capacitor on picture, there can not be used in rb600 and rb800??? I have about 30pieces rb502 but they all look so...

Re: RB800+RB/502 RB Hang

Posted: Tue Aug 31, 2010 4:48 pm
by aaa
Yes, without this fix with RB600,RB800 possible problem with PCI bus when daughterboard wireless is used. Just put it like on picture or contact with local Mikrotik dealer for assistance.

Re: RB800+RB/502 RB Hang

Posted: Mon Mar 25, 2013 9:58 pm
by chrismarine
can i put different type capacitor than is in the photo ?
smt 1000pf not exist in the market here !
I have some old parts similar but do not know any code Capacity to find the right