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Forum Index : Microcontroller and PC projects : Pimoroni Pico Plus 2W PSRAM size

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terekgabor
Senior Member

Joined: 02/01/2026
Location: Hungary
Posts: 108
Posted: 11:30am 19 Jul 2026
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I use PPP 2W in Picocalc. I noticed I have 6MB PSRAM from the beginning, even if the board has 8MB.
What is the reason of this?

G@bor
 
dddns
Guru

Joined: 20/09/2024
Location: Germany
Posts: 874
Posted: 11:56am 19 Jul 2026
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2 Mb are reserved for the system AFAIK for Ram slots, Modbuf etc. So 6 Mb remaining for extending the heap is the normal behavior and hasn't changed for long time.
Edited 2026-07-19 21:58 by dddns
 
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