How many DIMM slots does this server have and what type of memory does it support?

This server has 16+16 DIMM slots (2DPC) and supports DDR5 RDIMM and MRDIMM memory.

What type of processors are supported by the ASRock Rack Server Barebone 4U8G-GNR2/RF?

The ASRock Rack Server Barebone 4U8G-GNR2/RF supports Intel® Xeon® 6700P-series, 6500P-series, and 6700E-series processors.

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ASRock Rack Server Barebone 4U8G-GNR2/RF Dual Socket E2 (LGA 4710) Intel® Xeon® 6700P-series, 6500P-series, and 6700E-series processors 4U 8GPU

1. Enhanced airflow for reliable cooling of 600W GPUs and accelerator cards
2. 4U Rackmount with 3+1, 80-PLUS Titanium, 2700W CRPS
3. Dual Socket E2 (LGA 4710), supports Intel® Xeon® 6700P-series, 6500P-series, and 6700E-series processors
4. 16+16 DIMM slots (2DPC); supports DDR5 RDIMM, MRDIMM
5. 4 Hot-swap 2.5" NVMe (PCIe5.0 x4) drive bays or 24 Hot-swap 2.5" SATA/SAS* drive bays *Additional RAID/HBA card required
6. 8 FHFL dual-slot PCIe5.0 x16
7. 1 FHHL PCIe5.0 x16, 1 FHHL PCIe5.0 x8
8. Supports 1 M.2 (PCIe5.0 x4)
9. 2 RJ45 (1GbE) by Intel® i350
10. Remote Management (IPMI)
11. supports NVIDIA RTX PRO™ 6000 Blackwell Server Edition & NVIDIA H200 NVL