[FS][CAN] 768GB DDR5-4800 RDIMM + EPYC 9654 + Gigabyte MZ33-AR1 - Working SP5 Platform

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sparecompute

New Member
Oct 2, 2026
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Selling the core platform from my personal hobby AI server as I consolidate systems.

Everything below is currently running together as a working system. Preference is strongly for either the complete platform or the full 768GB memory lot.

Memory
  • 12 × 64GB DDR5-4800 ECC Registered DIMMs
  • 768GB total
  • PC5-38400
  • 2Rx4
  • 288-pin RDIMM
  • NEMIX-branded modules using SK Hynix DRAM
  • NEMIX label: MR38400-64GB
  • SMBIOS part number: MB64G48R72H2R4-I1TRT
  • All 12 currently operating together at 4800 MT/s
US$2,050 per DIMM

US$24,600 for all 12 / 768GB


Preference is strongly for the complete 12-DIMM lot. Reasonable offers considered for the complete lot. I may consider smaller matched sets if the full lot does not move.

CPU + motherboard
  • AMD EPYC 9654 (OEM/Unlocked)
  • 96 cores / 192 threads
  • Gigabyte MZ33-AR1 SP5 motherboard
  • Currently running together with the memory above
US$2,900 for CPU + motherboard

Complete working platform


AMD EPYC 9654 + Gigabyte MZ33-AR1 + all 768GB RAM:

US$27,000

The complete-platform buyer gets a known-working CPU, motherboard and matched memory configuration rather than separately sourced parts.

I purchased the memory new from NEMIX through Amazon in August 2025. I’m selling because I’m downsizing my local AI hardware, not because of any issue with the components.

Transaction

Given the transaction value, I would use Escrow.com Standard.
  • 3-calendar-day inspection period after confirmed delivery
  • Escrow fees split 50/50
  • Buyer pays shipping
  • I ship only after Escrow.com confirms buyer funds are secured
Shipping

Located in Ontario, Canada.

Will ship to Canada and the continental USA using tracked, insured shipping with signature confirmation. Other international destinations considered selectively depending on destination and availability of appropriate insured shipping.

Buyer is responsible for any applicable import duties, taxes, brokerage or customs charges.

Included

Only the components specifically listed above are included. GPUs, storage, chassis, PSU, cooler and any other hardware visible in the system photo are not included unless specifically agreed separately.

I can provide additional photos and original purchase documentation to a serious buyer.

Please PM if interested.

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