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Great! You made me happy for 500 A-grade points :)
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Great! You made me happy for 500 A-grade points :)

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Simple answer is no..as @@hanccocka already mentions. Your host should recognize any hardware change upon boot up.<br />
<br />
Regards.<br />
~coolsport00
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Simple answer is no..as @@hanccocka already mentions. Your host should recognize any hardware change upon boot up.

Regards.
~coolsport00

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Hi,<br />
this is simple question:<br />
<b>MUST or SHOULD I reinstall ESXi 5.0 host if I change and add CPU?</b><br />
<br />
I have currently Xeon E5420 CPU (Quad-Core, 2.5GHz, 12 MB Cache).<br />
I will install TWO Xeon L5420 CPUs, which differ on spec sheet only by power consumption; all other specifications are exactly the same. But notice, that I will install 2 CPUs, while now there's only one.
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Hi,
this is simple question:
MUST or SHOULD I reinstall ESXi 5.0 host if I change and add CPU?

I have currently Xeon E5420 CPU (Quad-Core, 2.5GHz, 12 MB Cache).
I will install TWO Xeon L5420 CPUs, which differ on spec sheet only by power consumption; all other specifications are exactly the same. But notice, that I will install 2 CPUs, while now there's only one.

ESXi 5.0 reinstall with CPU change?

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.

VMware

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.

Virtualization

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.