Chris Cook

Display important server information right in your dashboard. Toggle on/off what you need to show in the settings panel located at Settings / Server Info.
Server information shown:
<ul>
<li>Server Architecture</li>
<li>Web Server</li>
<li>PHP Version</li>
<li>PHP memory limit</li>
<li>Upload max filesize</li>
<li>PHP post max size</li>
<li>PHP time limit</li>
<li>MySQL Version</li>
</ul>

Dashboard Server Info

Display important server information right in your dashboard.

Remi Corson

This plugin helps admins to easily create admin notification inside the WordPress administration.
You can choose many options and decide how and where to display the notifications.

Easy Admin Notification

Tested up to 3.3.1 Stable Tag: 1.4 Adds the ability to create easily notification in the admin panel

Dashboard Server Info vs Easy Admin Notification