Replacement for 643075-L21: Drop-In Alternatives We Stock
Looking for a replacement for the 643075-L21 (643075-L21 - HP 2GHz 5.86GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E7-4820 8-Core Processor for ProLiant DL580 G7 Server)? 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 643075-L21
| SKU | 643075-L21 |
|---|---|
| Product | 643075-L21 - HP 2GHz 5.86GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E7-4820 8-Core Processor for ProLiant DL580 G7 Server |
| Current price | $247.37 |
| Stock status | In Stock |
| Detail page | View 643075-L21 › |
Drop-in replacements for 643075-L21
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.
643075-B21 - HP 2GHz 5.86GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E7-4820 8-Core Processor for ProLiant DL580 G7 Server
SKU: 643075-B21
Price: $170.53
643075RB21 - HP 2GHz 5.86GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E7-4820 8-Core Processor
SKU: 643075RB21
Price: $73.95
653054-001 - HP 2GHz 5.86GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E7-4820 8-Core Processor Upgrade for ProLiant G7 Servers
SKU: 653054-001
Price: $86.32
643774-B21 - HP 2GHz 5.86GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E7-4820 8-Core Processor for Proliant BL680c G7 Server
SKU: 643774-B21
Price: $202.11
643774-L21 - HP 2GHz 5.86GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E7-4820 8-Core Processor
SKU: 643774-L21
Price: $292.63
788329-B21 - HP 1.90GHz 6.40GT/s QPI 25MB L3 Cache Socket LGA2011-3 Intel Xeon E7-4820-V3 10-Cores Server Processor
SKU: 788329-B21
Price: $2,534.64
816655-B21 - HP 2.00GHz 6.4GT/s QPI 25MB L3 Cache Socket FCLGA2011-3 Intel Xeon E7-4820 V4 10-Core Processor
SKU: 816655-B21
Price: $3,261.37
788329-L21 - HP 1.9GHz 6.4GT/s QPI 25MB Last Level Cache Socket FCLGA2011 Intel Xeon E7-4820 V3 10-Core Processor
SKU: 788329-L21
Price: $3,579.97
834490-B21 - HP 2.0GHz 6.4GT/s QPI 25MB Cache Socket FCLGA2011 Intel Xeon E7-4820 V4 10-Core Processor
SKU: 834490-B21
Price: $3,771.76
858199-001 - HP 2.00GHz 6.4GT/s QPI 25MB L3 Cache Socket FCLGA2011-3 Intel Xeon E7-4820 V4 10-Core Processor
SKU: 858199-001
Price: $4,438.82
594894-001 - HP 2.0GHz 6.40GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon X7550 Octa-core (8 Core) Processor
SKU: 594894-001
Price: $71.58
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.