Eric: Using the .75 amp fan will work just fine, just because it draws less current does not necessary mean it has less air movement, the fans are rated in cfm (cubic feet per minute) air flow movement. the faster they spin the more noise they make. I have made variable speed controls on these case style fans using a fixed and variable resistor across the 12 volt line.be careful on 3 wire fans they have a sense connection to the system board. Bottom line if the .75 amp fan is working use it. If it's not broke don't fix it.!!! --- On Fri, 10/15/10, Mike Cooper <mcoo...@galesburg205.org> wrote:
From: Mike Cooper <mcoo...@galesburg205.org> Subject: Re: [tech-geeks] Electrical question To: "Tech-Geeks Mailing List" <tech-geeks@tech-geeks.org> Date: Friday, October 15, 2010, 10:10 AM Usually, if it draws more amps it more than likely spins faster. I would check the RPMS on the original and the new one, you may not be getting enough air flow. Just my 2¢. Thank you, Mike C "Not everything that counts can be counted, and not everything that can be counted counts." (Sign hanging in Einstein's office at Princeton) -----Original Message----- From: tech-geeks-boun...@tech-geeks.org [mailto:tech-geeks-boun...@tech-geeks.org] On Behalf Of John Hawk Sent: Friday, October 15, 2010 10:06 AM To: tech-geeks@tech-geeks.org Subject: Re: [tech-geeks] Electrical question I would say yes. They are both the same voltage. The first one would draw 1.5 Amps maximum. The second would draw .74 Amps. You can draw less on circuits. More can be bad. It can burn out devices and cause the voltage to drop. >>> "Eric Roemer" <roem...@woodland5.org> 10/15/2010 9:44 AM >>> My Dell PE 1600SC server had the back cooling fan fail and it kept shutting down the server. I found a replacement online to order, but in the meantime I took a fan out of an old PE2400 server (same size) and it appears to be working OK. Here is my question: The original fan was labeled 12.5 V, 1.5 A The one I am using is 12.5 V 0.74A Am I OK to use this unit, with the different Amp rating, until my replacement arrives? Eric THIS TRANSMISSION IS INTENDED AND RESTRICTED FOR USE BY THE ABOVE ADDRESSEE ONLY. IT MAY CONTAIN CONFIDENTIAL AND/OR PRIVILEGED INFORMATION EXEMPT FROM DISCLOSURE UNDER FEDERAL OR STATE LAW. IN THE EVENT SOME OTHER PERSON OR ENTITY RECEIVES THIS TRANSMISSION, SAID RECIPIENT IS HEREBY NOTIFIED THAT ANY DISSEMINATION, DISTRIBUTION, OR DUPLICATION OF THIS TRANSMISSION OR ITS CONTENTS IS PROHIBITED. IF YOU SHOULD RECEIVE THIS TRANSMISSION IN ERROR, PLEASE CALL WOODLAND CUSD#5 IMMEDIATELY AT 815-672-5974, DELETE THE FILE FROM YOUR SYSTEM, AND DESTROY ANY HARD COPIES OF THIS TRANSMISSION. THANK YOU. THIS TRANSMISSION IS INTENDED AND RESTRICTED FOR USE BY THE ABOVE ADDRESSEE ONLY. IT MAY CONTAIN CONFIDENTIAL AND/OR PRIVILEGED INFORMATION EXEMPT FROM DISCLOSURE UNDER FEDERAL OR STATE LAW. IN THE EVENT SOME OTHER PERSON OR ENTITY RECEIVES THIS TRANSMISSION, SAID RECIPIENT IS HEREBY NOTIFIED THAT ANY DISSEMINATION, DISTRIBUTION, OR DUPLICATION OF THIS TRANSMISSION OR ITS CONTENTS IS PROHIBITED. IF YOU SHOULD RECEIVE THIS TRANSMISSION IN ERROR, PLEASE CALL WOODLAND CUSD#5 IMMEDIATELY AT 815-672-5974, DELETE THE FILE FROM YOUR SYSTEM, AND DESTROY ANY HARD COPIES OF THIS TRANSMISSION. THANK YOU. | Subscription info at http://www.tech-geeks.org | | Subscription info at http://www.tech-geeks.org | ________________________________ This electronic mail is copyrighted by Community Unit School District #205, Galesburg, Illinois USA. Unauthorized dissemination or duplication of it is prohibited. Violators of copyright/confidentiality laws may be prosecuted. | Subscription info at http://www.tech-geeks.org |
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