Re: [AMMRL] lock/shim or PC error?

From: Cathy Clewett via groups.io <clewett=wisc.edu_at_groups.io>
Date: Fri, 2 May 2025 14:33:00 +0000

Marc,

Have you checked the memory on your machine? We found that full drives
caused some awfully weird failures. Of course, you should be sure you are
careful about what you remove from the drive, but clearing space might help.

--Cathy

Catherine F. M. Clewett, Ph.D.
Asst. Director Magnetic Resonance
Chemistry Instrumentation Center
University of Wisconsin Madison, Department of Chemistry
1101 University Ave Room 2201c, Madison, WI 53706

clewett_at_wisc.edu, (608)262-8196, https://pbcic.chem.wisc.edu



________________________________
> From: main_at_ammrl.groups.io on behalf of ter Horst, Marc A. via groups.io
> Sent: Thursday, May 1, 2025 9:33 AM
> To: main_at_ammrl.groups.io
> Subject: [AMMRL] lock/shim or PC error?

Hi

We are experiencing weird lock failures on our 600 MHz NEO system. The system
will lock and topshim on a samples (in IconNMR) and then fail on a sample.
This happens independent of solvent and is not due to low volume or ‘dirty’ samples.
This was particularly challenging while attempting to run the lineshape sample.
Locking and shimming worked on a H2O/D2O and a ethyl benzene/CDCl3 sample but
would not run on the CHCl3/acetone-d6 standard sample. We have reset the
calibration in topshim.

The PC (running Windows 11) is ‘running slow’. Sometimes it will take a
second or two to complete a command in Topspin- even for getprosol.
Occasionally, there is a minute delay while waiting for a ‘thread’ to finish.
There is also an error installing the 'iqvw64e.sys' driver. Based on some
discussion boards, people don't think this would affect operation.

Not sure if this is an issue with our lock settings or calibration in
Icon or is this some kind of PC/communication thing.

Anybody experience similar issues?

Marc

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Received on Fri May 02 2025 - 10:04:34 MST

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