I have taken my P340 i7-10700 to the limit, I think. Anyone who has 'more', let me know ;-)
1. 64Gbytes of memory
2. 2x NVMe drives in the 'native' slots (256Gbytes for the OS, 1Tbyte for cache/SLOG/whatever)
3. A PCIe switch card in the 1/2 height PCIe slot. (this provides 4x m.2 slots).
4. 3x 1Tbyte NVMe SSDs (making 4 total with the one in 2: above).
5. A m.2 2280 -> PCIe slot card to connect a LSI 3008i controller (connected to the external power supply)
6. A BPN-SAS3-216EL1 backplane (with in-built SAS expander) to connectup to 24x 2.5" drives (SAS or SATA). (connected to the external power supply)
7. A 2.5Gbit RTL8125B interface in the A+E wifi slot.
Just up to step 2, I have an idle Wattage of 3-4W:
Code:
lspci -tv
-[0000:00]-+-00.0 Intel Corporation 10th Gen Core Processor Host Bridge/DRAM Registers
+-01.0-[01]--
+-01.1-[02-07]----00.0-[03-07]--+-08.0-[04]----00.0 Micron/Crucial Technology P2 NVMe PCIe SSD
| +-09.0-[05]----00.0 Micron/Crucial Technology P2 NVMe PCIe SSD
| +-10.0-[06]----00.0 Broadcom / LSI SAS3008 PCI-Express Fusion-MPT SAS-3
| \-11.0-[07]----00.0 Micron/Crucial Technology P2 NVMe PCIe SSD
+-02.0 Intel Corporation CometLake-S GT2 [UHD Graphics 630]
+-04.0 Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem
+-08.0 Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
+-12.0 Intel Corporation Comet Lake PCH Thermal Controller
+-14.0 Intel Corporation Comet Lake USB 3.1 xHCI Host Controller
+-14.2 Intel Corporation Comet Lake PCH Shared SRAM
+-16.0 Intel Corporation Comet Lake HECI Controller
+-16.3 Intel Corporation Comet Lake Keyboard and Text (KT) Redirection
+-17.0 Intel Corporation Comet Lake SATA AHCI Controller
+-1b.0-[08]----00.0 SK hynix Device 1627
+-1b.4-[09]----00.0 SK hynix Gold P31/PC711 NVMe Solid State Drive
+-1f.0 Intel Corporation Q470 Chipset LPC/eSPI Controller
+-1f.3 Intel Corporation Comet Lake PCH cAVS
+-1f.4 Intel Corporation Comet Lake PCH SMBus Controller
+-1f.5 Intel Corporation Comet Lake PCH SPI Controller
\-1f.6 Intel Corporation Ethernet Connection (11) I219-LM
P.S. Yes, I still have to add the 2.5Gbit RTL adapter, it's still in the post (China), but I was able to add it on the M900 I also have, so I forsee no problems there:
The M900 experience,
P.P.S. I know there is a limitation to the storage of 4Gbyte/sec, but that's plenty.