I was thinking of cooling by convection being messed up, rather than obstructing the ventilation slots.
Is there a temperature monitor in the BIOS? If so it might be an idea to turn the PC upside-down and monitor the temperature before you fit it under the floor.
I once had a PC that would overheat if laid on its side. Never tried one completely inverted though.
Sorry, not picking on you, your's just happens to be the most recent such post, but this is just the sort of thing that's been complained about. The OP asked a specific question, only to be told that his whole plan is "wrong".Then you started in the wrong place and went in the wrong direction, didn't you.
Did you seek the advice of anybody competent when you were designing this system or did you decide that you knew enough about it to be sure that cameras + local HDD was the best solution?
Oh, and I'd not be using Windows but then if the OP is happy with that then that's his choice to make, not mine.
And long may that continue.Sorry, not picking on you, your's just happens to be the most recent such post, but this is just the sort of thing that's been complained about. The OP asked a specific question, only to be told that his whole plan is "wrong".
Yes, but...Oh, and I'd not be using Windows but then if the OP is happy with that then that's his choice to make, not mine.
FFS lighten up.Your first post was a smart ass off-topic one liner,
It wasn't really sarcasm.your second was a sarcastic stab at me
No, in my 3rd post I suggested fixing battens to the joists for the box to sit on so that it would be the right way up and have air space around it.and in your third post you accuse me of being a bigot.
.I am well aware of Linux and OSX.
You mean at 230V - i.e. about 320W? I find it hard to believe that a few cameras would require anything like as much as that.The cameras are powered by a PoE switch. Its PSU input is 1.4A.
Whatever figures you end up with, you obviously would need to have a UPS rated to provide at least the amount of power being drawn. The thing to watch, however, is that standard UPSs sold for computers generally only have the capacity to supply their full load for a few minutes - basically for long enough to allow an 'orderly shutdown' of the computer. A UPS to allow extended periods of ongoing operation would be a totally different, and presumably costly, animal with a very big bulky battery.The Since I need 2.9A at 240V, should any UPS rated over 700VA do the job?
Assuming input voltage is 230 volts then the input power is 345 watts suggesting a loss of 285 watts in the PSU.The PSU output is 5A @ 12V = 60W. Input is 1.5A.
With a bit more thought about the over all design of the system you should be able to achieve far less power wastage.Since I need 2.9A at 240V, should any UPS rated over 700VA do the job?
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