458575-L21 — HP Xeon E5430 LGA771 2.66GHz 4-Core Processor
MPN: 458575-L21|By: HP

Starting from
$125
Indicative — final pricing confirmed with your quote.
In Stockships worldwide
- Condition:
- New — authorized channel
- Warranty:
- Full manufacturer warranty
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Bulk order? Request volume pricing
Product overview
Part number 458575-L21 identifies this HP Xeon E5430 LGA771 2.66GHz 4-Core Processor. In a dual-socket board both sockets have to carry the same model, and the BIOS has to be new enough to recognise it. This is the 4-core part. Send the service tag and we will confirm the firmware revision as well as the chip.
If the part is wrong for your platform we will say so and suggest the one that is, which is cheaper for both of us than a return.
Featuring
- Core Count
- 4
- Processor Family
- Xeon
- Manufacturer
- HP
Interfaces / Ports
- Clock Speed
- 2.66GHz
- CPU Socket
- LGA771
Physical characteristics
- Product Type
- Server Processors
- Expedited shipping options are available — rates confirmed with your quote.
- Purchase orders accepted from qualified institutions.
- Compatibility is validated against your server platform before dispatch. Send us the model and we will confirm support.
These are the 6 facts we can state about 458575-L21 without inferring anything. Compatibility beyond this is confirmed per platform, on request, before you order.
Where the HP 458575-L21 is deployed
- Like-for-like replacement of 458575-L21 in an existing system
- Upgrading compute in place rather than replacing the chassis
- Replacing a processor after a board or CPU fault
Who this part is for
- Engineers matching a second socket to the processor already fitted
- Teams upgrading compute inside an existing chassis rather than replacing it
- Organisations consolidating licences onto fewer, larger cores
What you get ordering this from us
Ordered by part number
458575-L21 is what is quoted and 458575-L21 is what ships; where an alternate code is genuinely the same part we name it rather than swap it silently.
Answered by a human
A quote comes back with the reasoning attached, including the cases where we think you should buy something else.
No substitutions without asking
If we cannot supply the exact code we tell you what we can supply and why, rather than shipping an equivalent and letting you find out.
Questions buyers ask about this part
- Is 458575-L21 genuine and is the warranty intact?
- Yes — new and sealed, with the HP warranty and the firmware update path intact. We do not sell refurbished stock as new, and we do not source grey-market units.
- Will 458575-L21 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.
Compare other Server Processors we stock
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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.
