1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 <2012> 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 | Index | 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 <2012> 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
<== Date ==> | <== Thread ==> |
---|
Subject: | Re: mvme6100 HW issues? |
From: | Kate Feng <[email protected]> |
To: | "Kasemir, Kay" <[email protected]> |
Cc: | "[email protected]" <[email protected]> |
Date: | Fri, 02 Mar 2012 17:20:42 -0500 |
On 03/02/2012 04:03 PM, Kasemir, Kay wrote:
Hello Kate: We saw mvme5500 boards overheat in open laboratory crates or when on extender cards, meaning they were out in the open without any forced air cooling. For MVME2100 that was OK, but the 5500 dies. The 5500 was also getting quite hot in VXI crates where the cooling was previously dialed down to reduce noise. They seem fine in ordinary VME creates,
Agree. The backplane of the VME crate is less compact as compared with other kind of crates such as VME64x. I suspect that the overheating of the mvme6100 will not happen in a standard VME crate, which would simplify the problem if those extra pins and features from the VME64x crate are not needed. Cheers, Kate
also in our VXI crates when the fans are running full speed. Regards, Kay On 3/2/12 15:52 , "Kate Feng"<[email protected]> wrote:On 02/01/2012 12:18 PM, Kasemir, Kay wrote:At SNS, we updated from the MVME2100 to the MVME5500. The 2100 runs forever without added cooling on extender boards in open crates in laboratory setups. The 5500 needs forced cooling right across its heat sinks; it will otherwise soon overheat.I am surprised that the mvme5500 overheated. Did you use a regular VME crate or a VME64x crate with the mvme5500 board ? So far, we do not have the overheating problem on our mvme5500 boards.