If noone has a good answer Ill put a guess in here. There might be a PLD component on the board to handle misc-signals. Power handover between PSUs, easy upgrades of BMC and a variety of signals you didnt find any good way to control from anywhere else. And since this is a very specialized...
Sometimes it's necessary to press some button or escape to get it to stay inside the shell. But it could also be that it is searching for the EFI on a USB stick or something to boot from there. Are you trying on this exact product? Maybe someone that has it can verify.
Now im not sure, but many server products have the efi shell built in to the bios so its available as a boot option. Either F12 (or other button) to have quick boot menu and boot directly to EFI shell. Again, Im not sure this product has this built in.
Weeelll.. Not many good answers there @mimino. Maybe you cant run SAS. Maybe the HC510 is not new and/or out of warranty.
But in any case the SAS drive is better in all ways except power consumption. Perhaps noise also. Hmm.. that became a better list than i intended.
Wait. Its 12TB also ;)
Ive seen the same in aliexpress yes. But thats the same as the price of the monitor used. So thats not really an option.
Else there seems to be some sellers at taobao also. But not sure if thats an option. Will check that.
I just bought a broken monitor dirt cheap.
Its a Dell U3818DW-D so I reckon replacement parts will be expensive.
Auction stated broken LCD. And it seems to be somewhat correct. But I cant find any impacts in the screen.
Any fault tracing tips are...
I get a bit surprised when reading someone wants mSATA. Do you think there are any drives made that are that big in mSATA format? It kind of died out way before those drive sizes where available. And in fact i think it'd be hard to manufacture one now even. Since so few Nand dies fit to the pcb.