Resolving “Out of Memory” error

Clarity operates as a 32-bit process, which limits the available memory to 2 GB of RAM. When multiple demanding instruments are used simultaneously, overall system performance can be affected. Although Clarity itself cannot use more than 2 GB, it is still recommended to equip the computer with at least 8 GB of physical RAM to ensure sufficient resources for the operating system and other applications.

The Out of Memory error may appear, for example, when opening measured chromatograms while a sequence is running, or when working with a method file that has been saved repeatedly after multiple modifications. Each time a method is saved, Clarity creates a new version of the file, shown in the Method Setup dialog title as - #number. A large number of versions significantly increases the file size, and when a method becomes too large, memory resources may be depleted, leading to instability or malfunction.

Recommended solutions in Clarity

• Save the method under a new name. Use File → Save As to save the current method under a new name. This creates a fresh method file without previous versions, which reduces the file size.
• Avoid overlaying chromatograms during sequences. When opening chromatograms, do not use Open in Overlay while a sequence is running, since overlay display increases memory consumption during data acquisition.
• Do not open resulting chromatograms automatically. In the Sequence Table, disable the check box in the Open column. This prevents Clarity from opening each chromatogram as it is acquired.
• Limit the number of chromatograms in summary reports. When generating a Summary Report, include only the necessary chromatograms. Excessive data in reports may consume additional memory resources.

Additional recommendations

• Restart your PC or Clarity once in a while to release memory resources.
• Check which programs consume most memory in the Task Manager. Try to uninstall or disable unnecessary programs with the highest RAM (memory) consumption.
• Limit the number of programs that start automatically when you turn on your PC and run in the background. Open Task Manager → Startup apps tab and disable unnecessary startup entries.
• If the issue persists, verify that the PC meets or exceeds the recommended hardware requirements or consider buying a new PC with better hardware (mainly increase RAM capacity).