Replacement for 40K1257: Drop-In Alternatives We Stock
Looking for a replacement for the 40K1257 (40K1257 - IBM Intel Xeon E5310 Quad Core 1.6GHz 4X2MB L2 Cache 1066MHz FSB Socket LGA771 65NM Processor)? Pro Disk Network ships IBM 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 40K1257
| SKU | 40K1257 |
|---|---|
| Product | 40K1257 - IBM Intel Xeon E5310 Quad Core 1.6GHz 4X2MB L2 Cache 1066MHz FSB Socket LGA771 65NM Processor |
| Current price | $124.13 |
| Stock status | In Stock |
| Detail page | View 40K1257 › |
Drop-in replacements for 40K1257
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.
43X1002 - IBM Intel Xeon Quad Core E5310 Quad Core 1.6GHz 8MB L2 Cache 1066MHz FSB Socket 771 Processor
SKU: 43X1002
Price: $124.13
44E4479 - IBM Intel Xeon Quad Core E7420 2.13GHz 6MB L2 Cache 8MB L3 Cache 1066MHz FSB 45NM 90W Socket PGA-604 Processor
SKU: 44E4479
Price: $96.57
44E4471 - IBM Intel Xeon DP Quad Core E7440 2.4GHz 6MB L2 Cache 16MB L3 Cache 1066MHz FSB 45NM 90W Socket PGA-604 Processor
SKU: 44E4471
Price: $224.99
44E4481 - IBM Intel Xeon DP Quad Core E7440 2.4GHz 6MB L2 Cache 16MB L3 Cache 1066MHz FSB 45NM 90W Socket PGA-604 Processor
SKU: 44E4481
Price: $224.99
43W8763 - IBM 2.13GHz 1066MHz FSB 4MB L2 Cache Socket PPGA604 Intel Xeon E7320 Quad Core Processor for System x3850/3950 M2 -7141
SKU: 43W8763
Price: $77.57
44E4241 - IBM 2.13GHz 1066MHz FSB 4MB L2 Cache Socket PPGA604 Intel Xeon E7320 Quad Core Processor
SKU: 44E4241
Price: $77.57
44E4557 - IBM 2.13GHz 1066MHz FSB 4MB L2 Cache Socket PPGA604 Intel Xeon E7320 Quad Core Processor
SKU: 44E4557
Price: $77.57
44E4478 - IBM 2.13GHz 1066MHz FSB 12MB Cache Intel Xeon L7445 Quad Core Processor
SKU: 44E4478
Price: $82.42
40E5246 - IBM Intel Xeon L5320 Quad Core 1.86GHz 8MB L2 Cache 1066MHz FSB Socket LGA-771 LV Processor
SKU: 40E5246
Price: $83.51
43W3923 - IBM Intel Xeon L5320 Quad Core 1.86GHz 8MB L2 Cache 1066MHz FSB Socket LGA-771 65NM LV Processor
SKU: 43W3923
Price: $84.91
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.