ESP32 Forum

with a N16R8 model, run memory test at startup phase, and fail, is it the embedded PSRAM broken?

I (331) boot: Loaded app from partition at offset 0x10000
I (331) boot: Disabling RNG early entropy source...
I (343) octal_psram: vendor id : 0x0d (AP)
I (343) octal_psram: dev id : 0x02 (generation 3)
I (343) octal_psram: density : 0x03 (64 Mbit)
I (348) octal_psram: good-die : 0x01 (Pass)
I (353) octal_psram: Latency : 0x01 (Fixed)
I (359) octal_psram: VCC : 0x00 (1.8V)
I (364) octal_psram: SRF : 0x01 (Fast Refresh)
I (370) octal_psram: BurstType : 0x01 (Hybrid Wrap)
I (375) octal_psram: BurstLen : 0x01 (32 Byte)
I (381) octal_psram: Readlatency : 0x02 (10 cycles@Fixed)
I (387) octal_psram: DriveStrength: 0x00 (1/1)
I (392) esp_psram: Found 8MB PSRAM device
I (397) esp_psram: Speed: 40MHz
I (401) cpu_start: Multicore app
E (1138) esp_psram: SPI SRAM memory test fail. 196608/262144 writes failed, first @ 3C0E0100
E (1138) cpu_start: External RAM failed memory test!