Replacement for 631645-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 631645-B21 (631645-B21 - HP 2.8GHz 3200MHz HTL 6MB L3 Cache Socket C32 AMD Opteron 4184 6-Core Processor)? Pro Disk Network ships HP drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the 631645-B21
| SKU | 631645-B21 |
|---|---|
| Product | 631645-B21 - HP 2.8GHz 3200MHz HTL 6MB L3 Cache Socket C32 AMD Opteron 4184 6-Core Processor |
| Current price | $312.89 |
| Stock status | In Stock |
| Detail page | View 631645-B21 › |
Drop-in replacements for 631645-B21
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
626300-001 - HP 1.7GHz 3200MHz HTL 6MB L3 Cache Socket C32 AMD Opteron 4162 EE 6-Core Processor
SKU: 626300-001
Price: $128.66
614043-B21 - HP 1.7GHz 3200MHz HTL 6MB L3 Cache Socket C32 AMD Opteron 4162 EE 6-Core Processor
SKU: 614043-B21
Price: $135.41
614043-L21 - HP 1.7GHz 3200MHz HTL 6MB L3 Cache Socket C32 AMD Opteron 4162 EE 6-Core Processor
SKU: 614043-L21
Price: $135.41
629820-001 - HP 2.6GHz 3200MHz HTL 6MB L3 Cache Socket C32 AMD Opteron 4130 Quad Core Processor
SKU: 629820-001
Price: $198.54
629223-L21 - HP 2.6GHz 3200MHz HTL 6MB L3 Cache Socket C32 AMD Opteron 4130 Quad Core Processor
SKU: 629223-L21
Price: $218.39
660067-001 - HP 2.1GHz 3200MHz HTL 6MB L3 Cache Socket C32 AMD Opteron 4170 HE 6-Core Processor
SKU: 660067-001
Price: $276.70
637342-001 - HP 2.8GHz 3200MHz HTL 6MB L3 Cache Socket C32 AMD Opteron 4184 6-Core Processor
SKU: 637342-001
Price: $284.43
654870-B21 - HP 2.2GHz 3200MHz HTL 16MB L3 Cache Socket G34 AMD Opteron 6274 2.20GHz Processor Upgrade Socket-G34 LGA 1944
SKU: 654870-B21
Price: $857.89
OS6176 - HP 2.3GHz 3200MHz HTL 12MB L3 Cache Socket G34 AMD Opteron 6176 SE 12-Core Processor
SKU: OS6176
Price: $71.58
592052-B21 - HP 2.3GHz 3200MHz HTL 12MB L3 Cache Socket G34 AMD Opteron 6176 SE 12-Core Processor
SKU: 592052-B21
Price: $85.82
635812-L21 - HP 2.3GHz 3200MHz HTL 12MB L3 Cache Socket G34 AMD Opteron 6176 12-Core Processor
SKU: 635812-L21
Price: $85.82
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.