Idk if I can do that I mean 2 motherboards mean twice the gpu's but also is meaning that the gpu's in front of the will exhaust all the air to the new cards unless I figured out a nice way to cool it and having it 100 cm deep is very long it would be easier for me to do half that...
Also it may need to be a 6U instead of a 5U I have ran into a height issue with the cards not leaving enough clearance for the cpu cooler.
Wel, 100cm is 100cm because ..... these days standard racks are 100cm deep for the computers
There is not really a awy to dispute this.
I would also like all 4 power supplies to take air from the front. Actually you must be able to totally hadle this from the front (reset, power buttons, cable plugs) because one CAN NOT stand behind a full rack without getting into a lot of hot air in a hot room
I like the way you put air halfway around.
For shipping, sending half assembled would be better, I agree.
6 HE is a loss of 12 cards / one case per rack. A rack has normally 42 units in height, and 5 x 8 are 40
sadly, 6 x 7 is 42 so that means filling the rack full, havving to deal with where to put the network stuff (no unit free) etc.
I would definitly like 5 units high when possible.
Hot air exchaust may not be so problematic - there can be a LOT of air flowing through. Would have to be tested out. I mean, seriously ,even sucking in the hot air from the cards in front - the back cards get a lot more airflow than cards in most closed normal cases.
* I would ty a version without hot / cold aisle.
* Spread the cards out better. There is no reas ony ou have to stop on the motherboard. You can actually mvoe them out on the other side - raiser cards have a length. Tiere is no reason the cards are over the CPU
This kils the CPU cooler argument for 5 HE. ALTERNATIVELY - there is no reason that cards are mounted vertically, but that is problematiic from making. Would requite a custom piece of metal attach them like with a 45 degree turn. It would help, though, with the clearance for the cables
* WIthout aisle you also dont need that much difference between the boards, which creates space.
* You may want to stabilize more. There is no reason in the front for the vertical bar, but one bweeen the boards would be nice. What do you plan to use as base materia lfor the lower plate?
Leaves teh question where to put the 4 power supplies, which is something I am havving a problem with at the moment, too.