ID:170061 Can't place <type> slice <name>, which contains <number> nodes

CAUSE: The Fitter cannot place the specified DSP block slice for one of the following reasons:
  • You created location assignments that restrict the placement of the specified DSP block slice.
  • The number of DSP block slices in the design exceeds the number on the device.
  • There are too many DSP block slices with conflicting modes in the design.
  • The specified slice is part of a scan chain, which can restrict the placement of the slice.
  • The scanout signals, if used, fan out to logic that is not part of another DSP block slice, and therefore require the use of external routing.
  • You have incremental compilation turned on, and two or more design partitions have DSP blocks. Unless you have specified the Maximum DSP Block Usage for each partition, the Quartus Integrated Synthesis (QIS) independently balances the DSP blocks in each partition against the resources available in the used device. This can lead to over-allocation of DSP blocks, resulting in this error. To avoid this error, you should set the Maximum DSP Block Usage assignment on each partition to manually limit the number of DSP blocks used.
As a result, the Fitter cannot place the DSP block slices listed below this message. This message is a submessage of the message that precedes it in the Messages window and in the Messages section of the Report window.

ACTION: Select a larger device, set the Maximum DSP Block Usage if you are using partitions, delete or change the location assignments for the design, or modify the design so the specified slice is not part of a scan chain. Also make sure that the number of slices with conflicting modes does not exceed the number of slices on the device. To avoid receiving this message in the future, Intel recommends using the MegaWizard Plug-In Manager to edit an Intel-provided memory megafunction, rather than manually editing the text file for the Intel-provided megafunction. Click the + icon to expand the list of DSP block slices that cannot be placed in the device.