The load on router doesn’t come from number of users, it comes from throughput and concurrent number of connections. Number and actual speed of used ports also is a factor in power consumption. CPU frequency only partially affects power consumption. And PSU temperature is proportional to power delivered by PSU.
I knows, just ballparking the use.
“However, it’s even the other way around: ROS regulates fan speed (and thus air flow) according to temperature of CPU (and port area). But indirectly this also affects cooling of CPU (part of air does flow through PSU) and keeping fan speed low means higher temperature inside PSU. The degree to which this actually happens largely depends on thermal design of chasis and airflow inside chasis, so increasing airflow may not affect PSU temperature much if airflow avoids PSU.”
quote Karlisi “CPU is enclosed in tunnel together with fan”, airflow only run inside the tunnel not PSU…
“BTW, telecom grade equipment tend to run fans quite high … so using telecom grade equipment in office/residental environments, where noise is generally not welcome, may actually not be the best idea, it’s better to use equipment, designed to emit low noise and thus cooling has to be designed in a different way.”
Again, i know, my house is also used as a business office.
Generally you shouldn’t replace capacitor with a part that has different capacity (neither smaller nor larger). It can be rated for higher voltage (that doesn’t hurt) and definitely can be rated for higher temperature.
For power regulation, capacitor with larger voltage rating and larger capacitance usually work better, for example, to better smooth ripple.
Sure, all else being equal, but all else is not equal, because you’ve got a fixed area of PCB space to install it in. Greater capacity and higher voltage tolerance in the same space must trade off something. TANSTAAFL.
Yes, PCB space is a problem, i just replaced the PSU capacitor of my CCR1036 with the same spec Japanese capacitor and successfully revive it.
However, the “health” voltage on winbox shows only 22-23.4 volt…
I just replaced my C1442 / C1443 with a little bit larger capacitance and voltage rating Japanese capacitors. 16V / 1000uf. (Original 6.3V / 680uf)
It works very well, my “health” voltage rises up from 22.0-23.00 Volt to very stable 23.8-23.9 Volt.
So… does anyone actually have a replacement they can share with us?
I know technically you can use any 24v power supply with sufficient wattage, but i’m chasing one that actually fits in the original location without having to mess about, no soldering, no 3d printing brackets, no swapping caps etc
Changing the board plug is fine but anything else would want a direct purchasable replacement that can be dropped in
The PSU for the 1036 is not available, the 1009 is and looks like it may fit, but is only rated at 2.5A/60w
was the board “new” or “used” when you got it? CCR1036 is EOL for quite some time now.
have you examined the board itself, maybe it is damaged, maybe it got damaged when First PSU died and now because of this damage all other PSUs are dying.
have you cantacted Mikrotik Support with detailed explanation of the situation? they usually provide pointers how to fix even EoL products.
Traditional vendors have EoL pretty soon after EoS (a year or so later). EoL means no more spare parts are available from vendor … which doesn’t apply to Mikrotik as they sell hardly any spare parts (from the top of my head there are some PSUs and that’s it). EoL of a device doesn’t mean that all devices will instantly die, they might work for years afterwards. But when they do die, it’s almost impossible to repair them unless somebody does a DIY repairs (which in MT world happens instantly after purchase). Sldo with traditional vendors, EoL means no more software updates … in MT world software updates (and upgrades) keep rolling out almost indefinitely.ž
So, in short: it’s impossible to talk about EoL for MT gear within concept of EoL of traditional vendors.
We have four (4) of these Mikrotiks and all 4 of these from different batches have had their power supplies failed at least 4 times each. We even replaced capacitors on the actual router board with Panasonic brand, which somewhat fixed the issue. We will replace these eventually, but will never ever buy Mikrotik brand ever again. It is poorly designed and build, I think their target market is developing countries.
