Don't use this. User manual says 48v max on both power inputs.Powered by POE (56V / 2Amp)
I've tried direct power supply and the problem is still persisting. I've tried two different 48V power supplies both on PoE and to power jack (not at the same time, just to PoE or just to power jack) and it is always the same, hanging at sunny hours. Yesterday, I put 24V power supply to test with it and it is still working, but the weather is not so sunny today, so I can't be sure. I've contacted some other companies here in Serbia and they claim their RB800's are working fine even with several XR5 inside.You are experiencing same problems as us here. Board hangs on sunny hours even not so hot out. We tried a lot of POE combinations, but no direct jack powering and somebody had check that there is 15W more power consum with POE than with direct jack, and maybe this power is dissipated as hot inside the case, so it will be our next step.
I know this is a bug in 4.6, I've tried 4.5 also and temperature is correct with 4.5, but this value in 4.6 looks just like Fahrenheit, besides they declare Celsius. I've checked my RB800 a minute ago, and it stands at 121 degree while outside is 17 degrees Celsius. This is 50-51 degree Celsius, I believe.Your extrange values for temperature is not for Farenheit, actually values are Celsius, but a bug on ROS v4.6 is showing it wrong. Try downgrade to v4.5 and values will be good again.
Same here, our Sparklan 198N used to hang and if I scan with it, it is absolutely blind. It looked totally broken. When I put the same card to another box, it worked fine. This happend to two 198N cards and this is why I have just 3 CM9 cards inside at the moment. They seem to be stable, but not RB800. I am wondering if this is just with some series of RB800 or all of them are having the temperature problem.We experienced problems with radios too. Sometimes one or two radios stop work, and only thing we can do is power off/on. So maybe is not your radios problem but a power/temp problem.
I just reviewed manual : POE runs from 38V to 56V, direct Jack from 10V to 56V, now we had about 54.2 V inbox, with a 100W PSU, I think we can bring enought power to run. I bet this is a temp issue, maybe RB800 + 4 XR4 can´t be placed togheter outside on a closed box. Too hot to work. RB600 + 4 XR5 was working good for me last 18 months. Time to change schema to individual board, radio, case and PSU.Don't use this. User manual says 48v max on both power inputs.
I have tried two boards on this same place, I haven't tried it somewhere else, I didn't want more troubleAcim, do you have the RB800 deployed anywhere else yet? If so, has this been a problem with all of them you've deployed or just the units you've tried on the tower?
My RB800 is still working at this cloudy and rainy day. This kind of weather I expect tomorrow also and we will see what will happend on Thursday.@acim . It crashed!. At 63º one radio stop working, so I must restart all. I will do not more test. I just ordered four RB411AH and return RB800 back. Now our case is opened until we get the new parts.
I missed the spout on there! Sorry about that.Do you see the drawing above?A hole in the top for ventilation would be great right up until you get your first rain.
maybe we can adjust cpu speed to 400mhz ? Could someone confirm this possibility ?@OpiumDream : I bet it could be solved spending some time with coolers and case. This board comes even with various cooler conectors for failback, so if you are some kind of "McGiver" you can setup a serius performance system, but if you haven't the time nor the skills to make it, go better to other scheme. I think this would be great if Mikrotik design a special outdoor case with a suitable cooling system.
@acim : 38ºC inside box at maximum outdoor temp here (20º) without cover, of course
could you try 400 mhz ? also please tell me where from i can adjust cpu speed ?I've already tried 600Mhz and didn't help, it still freezed just the same way as on default frequency. I believe just cooling could help. My RB800 is still working at this cloudy weather I expect tomorrow higher temperatures, so I will let you know what happends.
I can't experiment further with this device because my customers are already angry enough. I expect tomorrow 20 degrees outside and if it locks again, I am going to replace it with RB433AH.could you try 400 mhz ? also please tell me where from i can adjust cpu speed ?
I'm sorry for that. I definitely confirm temp issue, no hangs since we quit cover even with 21º outdoor, So I'm ready to place four individual RB411AH + XR5 + OTS case + PULS 24V/1.6Amp PSU each. I'm sure this will fix our problems.This is really our greatest uptime, but we are getting hotter
Same for our two pieces. So, tomorrow will change all four sectors to RB411AH each one. Is good how RB800 show temperature, I will miss it with RB411AH. I will not miss hangs from RB800RB800 is completely dead when it hangs on "high" temperature, even ethernet is not accessible, eth LED is not blinking, just power LED is still on, but machine is completelly dead.
Thanks for yor reply. RB411AH is exactly same performance than RB433AH, so I prefer not to share this performance for two radios. I prefer individual radios for sector to keep each problem apart from other sector. Before this if I have a board fail, all four sector goes down. Now I can have people running on three sectors when I'm working on another one.Why not go for two RB433AH units?
Please contact mikrotik if you have an issue that needs solving. This is a user forum not mikrotik support systemi have same problem..
the rb800 hang ..evry day when temp. high . about 60*c
mikrotik team ... what your solutions ...???