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For a start, I have to say that this could also be something different. I don't want to lead you on a wrong path, while the problems with P440ar exists, this could still be a different problem. As far as I'm aware, there was no official solution that was guaranteed to work. It received several...

Yes. Reboots, system freezes, all the fun stuff. Most of the time the controller comes back online after a reboot until it happens again, which could be soon or never. Sometimes they just brick and die and don't come back after a reboot. This isn't something you can expose with a stress test...

That's correct, this is most likely a separate problem. In theory, yes. In practice, I don't know, I've never tried it, but probably not. For a start, I think you can't remove the 18650s without damaging their holder. Changing the cells also won't reset the data stored in the BMS. I'm not sure...

Case and backplane usually come together. In the traditional sense, there are no standardized backplanes so that you can pick a case and pick a backplane and then mount it. Cases like those from Supermicro come with a backplane and there are several variants. You can get a server case with 12...

It's not directly part of the Smart Array controller. These batteries consist of two 18650 cells in a separate holder, located behind the front drive cage and connected to the mainboard. It performs a similar role to what HP (and others) used to call the battery backed write cache (BBWC) and...

That looks good!

That's a shop from Germany and their prices are generally a bit high. If you're going to order in Germany anyway, check out this shop: Misure di sicurezza You can also go through their own website: HaehnleinIT GmbH - Server-Hardware neu und refurbished online kaufen You can set their website to...

Ok, you need a HBA then. The 9300-8i is one of the most popular ones right now, it's usually readily available and fairly cheap. Alternatively, most controllers using the same SAS3008 chip would be fine as well. It's fairly old, but still very usable. The cables would be SFF-8643 to SFF-8482...

I don't speak Italian, but I know someone who does. Let us know if the machine translation should ever fail, I can get a proper human translation :) That's correct. That depends on what you want to do and what your budget and your workload is. A SAS HBA is preferred for some workloads, for...

Well, something like this has been done before. Obviously you need to check for access to right angle connectors towards the front of the case, they might get blocked, and you can't apply pressure on the overhanging part of the board. And you might block some case features, not sure what usually...

Just in case, what's your native language? You don't just need other cables, you also need a SAS controller. This motherboard doesn't support SAS drives on its connectors, it's SATA only.

With the key on top and from left to right, PWM | Speed | +12V | GND is the default pinout for 3/4-pin fans. That's why Asrock has a gap in the key on the header so that you can connect standard 3/4-pin fans. Asus could have done the same thing, but apparently they didn't. With pins 5 and 6 on...

Nope, there is no grounding connection on that one.

I can't speak for this Nicgiga model and I don't know how universally some things can be applied to all these mostly similar switches, but I have a Horaco / GoodTop GT-ST024 (29€) and used one of their 50cm DAC cables to connect it to a Mikrotik CRS510. It's working fine.

I printed a new top cover. To be more precise, I asked a friend to model and print this for me. I came up with the idea and the measurements and he did the actual work. https://www.printables.com/model/866490-crs510-higher-lid-for-120mm-fans The pictures show my switch. I used tape because...

The fans in these switches are noticeable, but not super loud. If you need to have the switch located somewhere where this is relevant, you can remove them or swap them. The switch doesn't care about either, as long as you provide some means to remove the hot air. I added a 3D-printed air shroud...

I suggest getting one of these instead: https://mikrotik.com/product/crs504_4xq_in https://mikrotik.com/product/crs510_8xs_2xq_in

The best best practice would be not doing it. This is the Pi effect, isn't it? When the first Raspberry Pi was introduced, so many people were obsessed with it and wanted to use it for everything. And they did. And then they noticed that it was not meant for any of what they wanted to do. The...

It could be an issue with signal loss. You're on the limit of the specified SATA link length. Actually you're beyond the limit, because internal connections and PCB traces are also part of the total link length. Because of this, technically all 100cm SATA cables violate the spec. I had tons of...

It's not, because like I said, I would have an accurate description that would probably already contain all the information you want. But that's just me. I understand what you're saying and I agree. Again, pros and cons.