Replacement for 588156-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 588156-B21 (588156-B21 - HP 2.66GHz 5.86GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon X7542 Hexa-core (6 Core) Processor Upgrade 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 588156-B21
| SKU | 588156-B21 |
|---|---|
| Product | 588156-B21 - HP 2.66GHz 5.86GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon X7542 Hexa-core (6 Core) Processor Upgrade for ProLiant DL580 G7 Server |
| Current price | $131.58 |
| Stock status | In Stock |
| Detail page | View 588156-B21 › |
Drop-in replacements for 588156-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.
588156-L21 - HP 2.66GHz 5.86GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon X7542 Hexa-core (6 Core) Processor for ProLiant DL580 G7 Server
SKU: 588156-L21
Price: $221.74
594897-001 - HP 2.0GHz 6.40GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E7540 Hexa-core (6 Core) Processor for ProLiant Servers
SKU: 594897-001
Price: $71.58
589084RB21 - HP 2.0GHz 6.40GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E6540 Hexa-core (6 Core) Processor
SKU: 589084RB21
Price: $99.89
588150-L21 - HP 2.0GHz 6.40GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E7540 Hexa-core (6 Core) Processor
SKU: 588150-L21
Price: $105.26
594895-001 - HP 2.66GHz 5.86GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon X7542 Hexa-core (6 Core) Processor
SKU: 594895-001
Price: $131.58
589090-B21 - HP 2.0GHz 6.40GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E7540 Hexa-core (6 Core) Processor for ProLiant BL680c G7 Server
SKU: 589090-B21
Price: $184.21
594899-001 - HP 2.0GHz 6.40GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E6540 Hexa-core (6 Core) Processor for ProLiant Servers
SKU: 594899-001
Price: $210.96
589090-L21 - HP 2.0GHz 6.40GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E7540 Hexa-core (6 Core) Processor Kit (2-Processors) for ProLiant BL680c G7 Server
SKU: 589090-L21
Price: $242.11
597869-L21 - HP 2.0GHz 6.40GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E6540 Hexa-core (6 Core) Processor
SKU: 597869-L21
Price: $309.12
589084-B21 - HP 2.0GHz 6.40GT/s QPI 18MB L3 Cache Socket LGA1567 Intel Xeon E6540 Hexa-core (6 Core) Processor for ProLiant BL620c G7 Server
SKU: 589084-B21
Price: $348.28
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.