455423-B21: HP Xeon E5430 Socket LGA771 2.66GHz 4-Core Processor
MPN: 455423-B21|By: HP
Starting from
$210
Indicative. Final pricing is confirmed with your quote.
In Stockships worldwide
- Condition:
- New (authorized channel)
- Warranty:
- Full manufacturer warranty
Prefer your own inbox? Email us about this part
Bulk order? Request volume pricing
Authorized & warrantied
Sourced through authorized distribution, with the full manufacturer warranty.
Compatibility checked
Validated against your server platform before dispatch.
Delivery & lead time
Confirmed with your quote, including expedited freight where available.
Business & public sector
POs, net terms and volume pricing for qualified organizations, government and edu.
Product overview
HP lists 455423-B21 as an Xeon E5430 socket LGA771 2.66GHz 4-Core Processor. A processor upgrade is constrained by socket, chipset and BIOS revision, and a mismatched stepping will not post. This part is 4-core. We check the platform's supported-CPU list against your service tag before quoting.
Ask for the datasheet and firmware notes with the quote; we would rather you check our claim than take it.
Specifications
General
- Manufacturer part number
- 455423-B21
- Processor Family
- Xeon
- Product Type
- Server Processors
- Manufacturer
- HP
Technical specifications
- Core Count
- 4
- Clock Speed
- 2.66GHz
Interfaces & connectivity
- CPU Socket
- LGA771
Specifications for 455423-B21 as published by HP. Where a value is absent it is because we could not verify it, not because it does not exist. Ask and we will check.
Where the HP 455423-B21 is deployed
- Like-for-like replacement of 455423-B21 in an existing system
- Replacing a processor after a board or CPU fault
- Consolidating licensed workloads onto fewer, larger cores
Who this part is for
- Organisations consolidating licences onto fewer, larger cores
- Engineers matching a second socket to the processor already fitted
- Procurement sourcing a like-for-like CPU replacement under fault
What you get ordering this from us
Ordered by part number
Quoted and supplied against 455423-B21 specifically, so what arrives is what your build sheet asks for.
Volume pricing
The listed price is per unit; tiered pricing applies at quantity and purchase orders are accepted.
Answered by a human
A quote comes back with the reasoning attached, including the cases where we think you should buy something else.
Questions buyers ask about this part
Is 455423-B21 genuine and is the warranty intact?
Yes. It ships new in HP packaging, which is what keeps the warranty and the firmware entitlement valid. Anything we cannot supply that way we tell you about before you order.
Will 455423-B21 work in my server?
Send the service tag. We check the platform's supported-CPU list and the BIOS revision it requires, and where the board is dual-socket we confirm what is in the other socket. A stepping the firmware does not recognise will not post.
Do you accept purchase orders and quote at volume?
Yes, POs from qualified organisations, net terms on approval, and banded pricing once the quantity is worth banding. Send the number and we will price it properly.
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Specifying a system, not just the part?
On a training or inference node the host CPU is sized around the accelerators it feeds, not chosen on its own.