where did you get the board ? did not find any Z10PE-D8
or do you mean Z10PA-D8 or Z10PE-D8 WS ?
edit to answer you question, i remember having fears about the revision as well,
(edit i remember spending hours googling how to interpret the serial number and deducing the revision from that, after failing to identify the revision from PCB printed text, i never found anything conclusive, but Asus does have some page where they explain all the numbers of the board serial) and it might be the case that you have the old revision and it just won't boot dual V4, in which case there is nothing you can do
(edit but if it boots a single v4 my gut tells me it should boot 2 as well, don't give up!!). But do try everything including pulling the BMC and testing both CPU's and RAM first.
Z10PA-D8, sry.. i'm approaching 50 yrs, and i dun care about remembering any details anymore
I got the board from this thread way back, when some guy apparently had CPU mined crypto and was dumping a huge amount of those boards at 100 EUR a piece. Combined with 2x E5-2680v4's for 122 EUR a piece from Poland, genuine european server pulls, and used samsung 32GB 2166 rdimm modules for about 55 EUR a piece, it's made a really nice server for the cost. Also scored 3x 800GB Intel DC P3700's for 66 EUR a piece, on arrival they were 1% used, powercycled a total of 5 times lol. Then i scored 2x PNY Quadro P620's for 48 EUR a piece, arrived in mint condition. Add a Solarflare 7022 2x 10Gbit SFP+ card for about 22 EUR, mint condition.
Crammed everything into a Be quiet Pure Base 500 Desktop case (70 EUR), with Be Quiet Dark Rock Slim tower coolers for CPU, and Silent Wings 4 Pro for the case. that's 28/56 Broadwell cores feeding 8x 4K@60 Hz desktop screens plus a bunch of VM's, whisper quiet (all cores at max with S-TUI the CPU's go from 34 degrees idle to about 62 degrees celcius, the dark rock slim fans go from 400 rpm idle to about 600 rpm, settles there, still completely inaudible. the size of a desktop, and for chumpchange. All i need for now.
Oh yeah and using Fractal Design 120mm modular fan to HDD mounting bracket, i can mount 4x HDD's in the Pure Base 500, 2 drives vertically just in front of the 140mm intake fan, by moving the intake fan to the other side of the mounting frame.
(these pics still with old cheap pure wings, and HDD's mounted vertically in another pure base 500, but just as example of cheap, quiet, and small)