Solved

PowerEdge 2900 fans go flat out when cover is off.  Why?

Posted on 2011-09-25
3
1,008 Views
Last Modified: 2012-06-21
When I fire up my PowerEdge 2900 when the right-hand panel is off, the fans go flat out.  As soon as put the panel on, they slow down.  Are they configured to maintain a pressure differential?  Or, is it something else that causes the change in speed when the panel is on or off?
0
Comment
Question by:jdana
3 Comments
 
LVL 4

Accepted Solution

by:
Ryan Weaver earned 125 total points
ID: 36595548
The fan management system is designed for specific air flow characteristics, with the cover off detected, it has no way to predict the air flow so powers up to prevent over heating.
0
 
LVL 87

Assisted Solution

by:rindi
rindi earned 125 total points
ID: 36595564
There is a switch that detects if the cover is removed, and when that switch is tripped it tells the fans to run at full speed.
0
 

Author Closing Comment

by:jdana
ID: 36596282
Thanks guys.
0

Featured Post

Why You Should Analyze Threat Actor TTPs

After years of analyzing threat actor behavior, it’s become clear that at any given time there are specific tactics, techniques, and procedures (TTPs) that are particularly prevalent. By analyzing and understanding these TTPs, you can dramatically enhance your security program.

Join & Write a Comment

Introduction: When a connection to the internet is established, there always exists a modem between the connected device and the ISP (Internet Service Provider). The Operating System (OS) on your PC controls the modem which communicates with the …
Introduction: When experiencing some peculiar problem with the functioning of your PC, how many times has it happened that you look for a solution and even google can’t help? It could be that you are one of the only few people on earth who ma…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, Just open a new email message.  In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
This video discusses moving either the default database or any database to a new volume.

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now