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<== Date ==> <== Thread ==>

Subject: Re: 5500 temp monitor Re: mvme6100 HW issues?
From: "Kasemir, Kay" <kasemirk@ornl.gov>
To: Kate Feng <feng@bnl.gov>
Cc: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Fri, 2 Mar 2012 16:03:04 -0500
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, also in our
VXI crates when the fans are running full speed.

Regards,
Kay


On 3/2/12 15:52 , "Kate Feng" <feng@bnl.gov> 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.



Replies:
Re: mvme6100 HW issues? Kate Feng
References:
Re: 5500 temp monitor Re: mvme6100 HW issues? Kate Feng

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